ORCID Profile
0000-0003-4573-2945
Current Organisation
Flinders University
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Research Topics
In Research Link Australia (RLA), "Research Topics" refer to ANZSRC FOR and SEO codes. These topics are either sourced from ANZSRC FOR and SEO codes listed in researchers' related grants or generated by a large language model (LLM) based on their publications.
Top 5 Research Topics
ANZSRC Field of Research (FoR)
Quaternary Environments | Physical Geography and Environmental Geoscience | Archaeological Science | Surface Processes | Photogrammetry and remote sensing | Palaeoclimatology | Archaeology | Geology | Causes and Prevention of Crime | Physical geography and environmental geoscience | Aboriginal and Torres Strait Islander History | Geomorphology and Regolith and Landscape Evolution | Geochronology | Physical oceanography | Geomorphology and earth surface processes | Sedimentology | Geophysics not elsewhere classified
ANZSRC Socio-Economic Objective (SEO)
Expanding Knowledge in the Earth Sciences | Ecosystem Assessment and Management of Coastal and Estuarine Environments | Ecosystem Adaptation to Climate Change | Coastal and Estuarine Land Management | Environmental Education and Awareness | Effects of Climate Change and Variability on Australia (excl. Social Impacts) | Understanding Australia's Past | Law Enforcement | Coastal and Estuarine Soils | Expanding Knowledge in History and Archaeology |
Related Links
Publications
Present and Future Challenges of Coastal Erosion in Latin America
Publisher: Coastal Education and Research Foundation
Date: 09-2014
DOI: 10.2112/SI71-001.1
Wave, beach and dune interactions in southeastern Australia
Publisher: Elsevier BV
Date: 08-1982
Critical Reflections on the Coherent Flow Structures Paradigm in Aeolian Geomorphology
Publisher: Wiley
Date: 06-09-2013
Foredune morphodynamics and sediment budgets at seasonal to decadal scales: Humboldt Bay National Wildlife Refuge, California, USA
Publisher: Elsevier BV
Date: 10-2018
Geomorphology of high-latitude coastal dunes: a review
Publisher: Geological Society of London
Date: 2014
DOI: 10.1144/SP388.17
Secondary Dune
Publisher: Springer Netherlands
Date: 12-08-2015
Flow dynamics and geomorphology of a trough blowout
Publisher: Wiley
Date: 06-1996
Disturbance Processes and Dynamics in Coastal Dunes
Publisher: Elsevier
Date: 2007
Impact of urbanization and landscape changes on the vegetation of coastal dunes along the Gulf of Mexico
Publisher: Informa UK Limited
Date: 06-07-2021
Changes in dunefield geomorphology and vegetation cover as a response to local and regional climate variations
Publisher: Coastal Education and Research Foundation
Date: 03-01-2013
DOI: 10.2112/SI65-221.1
Fraser Island (K'gari) and initiation of the Great Barrier Reef linked by Middle Pleistocene sea-level change
Publisher: Springer Science and Business Media LLC
Date: 14-11-2022
DOI: 10.1038/S41561-022-01062-6
Abstract: The eastern Australia coastline is characterized by impressive coastal landforms and an extensive northward-moving longshore drift system that have been influenced by a stable, long-term tectonic history over the Quaternary period. However, the timing and drivers of the formation of two conspicuous landscape features—Fraser Island (K’gari) and the Great Barrier Reef—remain poorly understood. Here we use optically stimulated luminescence and palaeomagnetic dating to constrain the formation of the extensive dunes that make up Fraser Island, the world’s largest sand island, and adjacent Cooloola Sand Mass in southeastern Queensland. We find that both formed between 1.2 Ma and 0.7 Ma, during a global climate reconfiguration across the Middle Pleistocene transition. They formed as a direct result of increased litude of sea-level fluctuations associated with increasing global ice volume that redistributed previously stored sediment across the continental shelf. The development of Fraser Island dramatically reduced sediment supply to the continental shelf north of the island. This facilitated widespread coral reef formation in the southern and central Great Barrier Reef and was a necessary precondition for its development. This major reorganization of the coastal sedimentary system is probably not unique to eastern Australia and should be investigated in other passive-margin coastlines.
Discussion: “Evidence for a transgressive barrier within a regressive strandplain system: implications for complex response to environmental change” by Hein, et al. (2013), Sedimentology 60, 46
Publisher: Wiley
Date: 18-07-2014
DOI: 10.1111/SED.12132
Shoreline Dynamics and Coastal Dune Stabilization in Response to Changes in Infrastructure and Climate
Publisher: Coastal Education and Research Foundation
Date: 07-2019
DOI: 10.2112/SI92-002.1
Airflow Dynamics Over Unvegetated and Vegetated Dunes
Publisher: Elsevier
Date: 2022
Transgressive dunefield landforms and vegetation associations, Doña Juana, Veracruz, Mexico
Publisher: Wiley
Date: 21-02-2011
DOI: 10.1002/ESP.2035
Air flow and sediment transport dynamics on a foredune with contrasting vegetation cover
Publisher: Wiley
Date: 16-06-2022
DOI: 10.1002/ESP.5425
Abstract: Wind flow and sediment transport across a northern California beach‐foredune system with two adjacent vegetation types are examined for the same incident wind conditions. The invasive Ammophila arenaria was taller ( c . 1 m) with denser coverage than the neighbouring Elymus mollis alliance canopy ( c . 0.65 m), which consisted of a variety of interspersed native plants. Wind flow was measured with rotating cup and sonic anemometry, while sediment transport was measured using laser particle counters. Wind speed profiles over the two canopies were significantly different because of differing vegetation height, coverage density, and stem stiffness. In both cases, there was a lower zone of semi‐stagnant air (below about 0.3 m) that transitioned upward to a shear zone comprising the upper part of the canopy and immediately above. The shear zone above the Elymus canopy was relatively thin (confined to 0.3–0.5 m above‐ground) whereas the shear zone in the Ammophila canopy was thicker extending from a height of about 0.5 h ( h is average plant height) to about 1.5 h . Vertical profiles of Reynolds shear stress (RSS) and turbulence kinetic energy (TKE) are consistent with the shear layer structure over these two contrasting vegetation canopies. The degree of topographically‐forced and vegetation‐enhanced flow steering was significant, with Ammophila strongly shifting the highly oblique (55°) incident wind to essentially shore‐perpendicular trajectories. In comparison, the shore‐perpendicular steering effect was not as pronounced for the Elymus canopy. Sediment transport intensity on the beach was continuous, but decreased progressively to the dune toe, and then dropped to essentially zero once the vegetation canopy was encountered (on the stoss slope). Overall, the study illustrates the significant differences in wind flow and turbulence conditions that may occur in contrasting plant canopies on foredunes, suggesting that greater attention needs to be placed on vegetation roughness characteristics in models of foredune morphodynamics and sediment transport potential.
Foredune vegetation patterns and alongshore environmental gradients: Moçambique Beach, Santa Catarina Island, Brazil
Publisher: Wiley
Date: 09-2008
DOI: 10.1002/ESP.1633
Topographic change and numerically modelled near surface wind flow in a bowl blowout
Publisher: Wiley
Date: 09-05-2019
DOI: 10.1002/ESP.4625
Introduction to Inland Dunes of North America
Publisher: Springer International Publishing
Date: 2020
Changes in vegetation cover on the Younghusband Peninsula transgressive dunefields (Australia) 1949–2017
Publisher: Wiley
Date: 18-10-2018
DOI: 10.1002/ESP.4508
Late Pleistocene raised beaches of coastal Estremadura, central Portugal
Publisher: Elsevier BV
Date: 12-2009
TEMPORARY REMOVAL: Sand, Sun, Sea and Sex with Strangers, the “five S's”. Characterizing “cruising” activity and its environmental impacts on a protected coastal dunefield
Publisher: Elsevier BV
Date: 2022
DOI: 10.1016/J.JENVMAN.2021.113931
Abstract: The publisher regrets that this article has been temporarily removed. A replacement will appear as soon as possible in which the reason for the removal of the article will be specified, or the article will be reinstated. The full Elsevier Policy on Article Withdrawal can be found at bout/our-business olicies/article-withdrawal.
Characteristics, treatment patterns, prognostic determinants and outcome of peripheral T cell lymphoma and natural killer/T cell non-Hodgkin Lymphoma in older patients: The result of the nationwide multi-institutional registry Thai Lymphoma Study Group
Publisher: Elsevier BV
Date: 2020
DOI: 10.1016/J.JGO.2019.03.016
Abstract: Peripheral T cell NHL (PTCL) and natural killer/T cell NHL (NKTCL) are relatively rare disorders. Data on clinical presentation, treatment and outcome are limited especially in older age groups. We identified 127 patients with PTCL and NKTCL, excluding cutaneous T/NK cell lymphoma, aged over 60 years old from Thailand nationwide multicenter registry. Of 127 patients, median age of diagnosis was 67 years old. Patients aged older than 75 years old had similar characteristics to younger (60-74 years old) but higher comorbidity index. Seventy-nine patients (62.2%) received intensive/definite multi-agent chemotherapy, however, the proportion was significant lower in older patients (70.4% vs 34.5%, p < .001). After a median follow up duration of 17.3 months, 2-year progression free survival and overall survival were 38.1% and 48.5%. Univariate and multivariable analysis demonstrated older age, poor performance status and absence of definite multi-agent chemotherapy were associated with inferior survival. Definite multi-agent lymphoma specific chemotherapy was an independent factor for overall survival after adjustment for age, comorbidity index, performance status and prognostic index for T cell lymphoma. Despite overall poor prognosis of PTCL and NKTCL in older adults, chemotherapy could result in objective response and long-term survival in selected patients of this vulnerable age group thus emphasizing the importance of comprehensive geriatric evaluation.
Geochronology and evolution of a complex barrier, Younghusband Peninsula, South Australia
Publisher: Elsevier BV
Date: 04-2020
Flow and sediment transport dynamics in a slot and cauldron blowout and over a foredune, Masons Bay, Stewart Island, NZ
Publisher: Elsevier BV
Date: 10-2017
11.7 Fundamentals of Aeolian Sediment Transport: Airflow Over Dunes
Publisher: Elsevier
Date: 2013
Aeolian dynamics of beach scraped ridge and dyke structures
Publisher: Elsevier BV
Date: 05-2015
Transverse dune trailing ridges and vegetation succession
Publisher: Elsevier BV
Date: 07-2008
Field measurements of influence of sand transport rate on structure of wind-sand flow over coastal transverse ridge
Publisher: Springer Science and Business Media LLC
Date: 09-2008
Event free survival at 24 months is a strong surrogate prognostic endpoint of peripheral T cell lymphoma
Publisher: Wiley
Date: 12-11-2019
DOI: 10.1002/HON.2687
Abstract: Event free survival at 24 months (EFS24) has been described as a powerful predictor for outcome in several subtypes of B cell lymphoma. However, it was limitedly described in T cell lymphoma. We explored the implication of EFS24 as a predictor marker for peripheral T cell lymphoma (PTCL). We reviewed 293 systemic PTCL patients at 13 nationwide major university hospitals in Thailand from 2007 to 2014. The median event free survival (EFS) and overall survival (OS) of PTCL patients in our cohort was 16.3 and 27.7 months with corresponding 2-year EFS and 2-year OS of 45.8% and 51.9%, respectively. A total of 118 patients achieved EFS24 (no events during the first 24 mo). Patients who achieved EFS24 had better OS than patients who did not (2-y OS 92% vs 18.8% HR, 0.1 P < .001). The standardized mortality ratio of patients achieving EFS24 was 18.7 (95% CI, 14.6-22.8). Multivariable analysis demonstrated performance status, histologic subtype, remission status, and EFS24 achievement as independent predictors for OS. Our study affirmed the value of EFS24 as a powerful prognostic factor for PTCL. Further validation in prospective study setting is warranted.
Beach-dune Recovery from the Extreme 2013-2014 Storms Erosion at Truc Vert Beach, Southwest France: New Insights from Ground-penetrating Radar
Publisher: Coastal Education and Research Foundation
Date: 26-05-2020
DOI: 10.2112/SI95-115.1
Coastal Barriers
Publisher: Springer Netherlands
Date: 12-08-2015
Wind regime and aeolian landforms on the eastern shore of Qinghai Lake, Northeastern Tibetan Plateau, China
Publisher: Elsevier BV
Date: 05-2021
Biogeomorphological processes in an arid transgressive dunefield as indicators of human impact by urbanization
Publisher: Elsevier BV
Date: 02-2019
DOI: 10.1016/J.SCITOTENV.2018.08.429
Abstract: Urban and tourist developments can have long-lasting impacts on coastal environments and fundamentally alter the evolution of coastal dune systems. This is the case of the Maspalomas dunefield (Gran Canaria, Canary Islands), hosting one of the largest tourist resorts in Spain. The resort was built on top of a sedimentary terrace at 25 m above sea level (El Inglés) in the 1960s, and has subsequently affected local winds and therefore aeolian sediment transport patterns. Buildings on the terrace deflect the winds to the south of the dunefield, where the rate of sediment transport accelerated. A shadow zone appeared to the lee side of the resort with a consequent decrease in wind speed and aeolian sediment transport and an increase in vegetation cover. In this paper, first we characterize the environmental changes around El Inglés terrace in recent decades, and describe the changes in the shadow zone through an analysis of the evolution of sedimentary volumes and vegetation characteristics (density, spatial patterns, and plants communities). A series of historical aerial photographs, recent orthophotos and digital elevation models obtained by digital photogrammetry and LiDAR, as well as fieldwork were used to characterize plant communities and spatial-temporal changes in erosive landforms. Results show changes in the pattern and migration rates of dunes located at the southern edge of the urbanization, as well as the formation of blowouts and large deflation areas, where the vegetation increases in density and number of plant communities. We discuss eco-anthropogenic factors that have produced these environmental changes.
The Manawatu Dunefield: Environmental Change and Human Impacts
Publisher: Wiley
Date: 10-2001
Nebkha development and sediment supply
Publisher: Elsevier BV
Date: 06-2021
Wind direction and complex sediment transport response across a beach–dune system
Publisher: Wiley
Date: 31-08-2012
DOI: 10.1002/ESP.3306
Foredunes and blowouts: initiation, geomorphology and dynamics
Publisher: Elsevier BV
Date: 11-2002
Reynolds stress and sand transport over a foredune
Publisher: Wiley
Date: 30-05-2013
DOI: 10.1002/ESP.3428
The effects of surface moisture on aeolian sediment transport threshold and mass flux on a beach
Publisher: Wiley
Date: 2007
DOI: 10.1002/ESP.1527
Skimming Flow and Sand Transport Within and Above Ammophila (Marram) Grass on a Foredune
Publisher: American Geophysical Union (AGU)
Date: 06-2023
DOI: 10.1029/2023JF007143
Abstract: An investigation of wind flow and sand transport over a low to high density Ammophila dominated foredune on the Łeba barrier, Poland, utilizing multiple anemometers and sand traps is presented. The study provides the first high resolution data on modified saltation and suspended sand transport over a foredune under conditions of both canopy and skimming flow. Topographic acceleration of flow and topographic steering over the foredune were observed during oblique incident above threshold flow conditions. The concentration of sand in aeolian transport decreases with height to a minimum that is reached at different elevations above the ground, depending on Ammophila grass density. Of the three Ammophila (marram) grass densities investigated, nearly half (46%) of the total sand‐transport rate occurred above the lower density Ammophila grass, whereas up to 70% of the total transport occurred above the higher density marram grass. This likely results from both elastic collisions of sand grains with grass leaves over the Ammophila canopy and the different positions of the canopy rebounding surface, which is sensitive to even slight changes in wind speed. In addition, as plant density increases, there is less flow penetration into the canopy, vegetative forcing (similar to topographic forcing) of vertical flow is greater, and sand in both modified saltation and suspension is forced higher above the canopy in skimming flow. The maximum sand transport above the vegetation canopy increased in elevation from 32 to 48 to 53 cm as the vegetation density increased from low to moderate to high, respectively. The study also demonstrates that in skimming flow, relatively more sand is transported at higher elevations above a canopy surface than above a bare sand surface.
150 years of foredune initiation and evolution driven by human and natural processes
Publisher: Elsevier BV
Date: 02-2021
Longitudinal dunes can move sideways
Publisher: Wiley
Date: 08-1989
Erratum: Multiple origins of linear dunes on Earth and Titan
Publisher: Springer Science and Business Media LLC
Date: 02-2010
DOI: 10.1038/NGEO774
Seagrass loss associated with boat moorings at Rottnest Island, Western Australia
Publisher: Elsevier BV
Date: 1995
Estimating regional terrestrial carbon fluxes for the Australian continent using a multiple-constraint approach. II. The Atmospheric constraint
Publisher: Stockholm University Press
Date: 04-2003
CFD flow dynamics over model scarps and slopes
Publisher: Informa UK Limited
Date: 23-12-2021
Nebkha or not? -Climate control on foredune mode
Publisher: Elsevier BV
Date: 04-2021
Flow dynamics in a trough blowout
Publisher: Springer Science and Business Media LLC
Date: 02-1996
DOI: 10.1007/BF00123530
Offshore Aeolian Transport across a Low Foredune on a Developed Barrier Island
Publisher: Coastal Education and Research Foundation
Date: 09-2006
DOI: 10.2112/06A-0008.1
Sediment budget controls on foredune height: Comparing simulation model results with field data
Publisher: Wiley
Date: 04-2018
DOI: 10.1002/ESP.4354
Spatio-temporal geomorphological and ecological evolution of a transgressive dunefield system, Northern California, USA
Publisher: Elsevier BV
Date: 2019
Eolian Processes
Publisher: Springer International Publishing
Date: 2018
Geomorphology and dynamics of a traveling cuspate foreland, Authie estuary, France
Publisher: Elsevier BV
Date: 02-2016
The Formation of Shadow Dunes
Publisher: Society for Sedimentary Geology
Date: 1981
Turbulent Reynolds stress and quadrant event activity in wind flow over a coastal foredune
Publisher: Elsevier BV
Date: 05-2012
Effects of the Increase in Vegetation Cover and Impact of Rabbits on the Geomorphology of Parabolic Dunes (Younghusband Peninsula - SA, Australia)
Publisher: Coastal Education and Research Foundation
Date: 26-05-2020
DOI: 10.2112/SI95-021.1
Wind flow and sedimentation in artificial vegetation: Field and wind tunnel experiments
Publisher: Elsevier BV
Date: 07-2019
Sediment transport (dis)continuity across a beach–dune profile during an offshore wind event
Publisher: Elsevier BV
Date: 09-2015
Flow dynamics over a high, steep, erosional coastal dune slope
Publisher: Elsevier BV
Date: 04-2022
Wave Energy as a Control on Dune Development on two Regressive Barriers in Southern Brazil
Publisher: Coastal Education and Research Foundation
Date: 03-03-2016
DOI: 10.2112/SI75-55.1
The prevalence of CD30 expression and relationship to survival in patients with peripheral T-cell lymphoma (PTCL)
Publisher: Medical Association of Thailand
Date: 15-01-2021
DOI: 10.35755/JMEDASSOCTHAI.2021.01.11367
Abstract: Objective: To define the prevalence of CD30 expression and the relationship to survival in patients with peripheral T-cell lymphoma (PTCL). Materials and Methods: A 12-year retrospective study of 135 PTCL patients was completed. Their tissue specimens were stained for CD30 antibody and the results were correlated with clinical data and survival. Results: One hundred thirty-five patients were enrolled. The subtypes of PTCL were classified as PTCL-NOS (36.3%), nasal NKTCL (17.8%), AITL (15.6%), CTCL (13.3%), SPTCL (11.1%), ALCL (4.4%), C-ALCL (0.7%), and EATL (0.7%). The expression of CD30 in the PTCLs was 34.8%, which significantly associated with histological subtypes (p .001). There was a higher prevalence in ALCL or C-ALCL (100.0%), nasal NKTCL (79.2%), and PTCL- NOS (30.6%). The median survival was 25 months with a projected 5-year survival of 37.0%. CD30 positivity was significantly associated with poor survival outcome (CD30⁻ 30 months versus CD30⁺ 14 months, p=0.013). From Cox regression analysis, PTCL subtypes were independent prognostic predictor for survival in the present study. Conclusion: The expression of CD30 in PTCLs was demonstrated in one-third of patients and was associated with histological subtypes and inferior survival outcome. Keywords: CD30, Survival, Peripheral T-cell lymphoma
Evolution of a coastal transgressive dunefield to a parabolic dunefield, Canunda dunes, South Australia
Publisher: Elsevier BV
Date: 06-2023
Environmental significance of abundant and diverse hornwort spores in a potential submerged Paleoindian site in the Gulf of Mexico
Publisher: Informa UK Limited
Date: 12-2012
The effect on coastal vegetation of trampling on a parabolic dune
Publisher: Elsevier BV
Date: 11-2010
Increasing rainfall, decreasing winds, and historical changes in Santa Catarina dunefields, southern Brazil
Publisher: Wiley
Date: 26-03-2013
DOI: 10.1002/ESP.3390
High‐frequency sediment transport responses on a vegetated foredune
Publisher: Wiley
Date: 25-06-2012
DOI: 10.1002/ESP.3275
The Holocene Barriers of Maranhão, Piauí and Ceará States, Northeastern Brazil
Publisher: Springer Berlin Heidelberg
Date: 2009
Vegetation dynamics on eroding to accreting beach‐foredune systems, Florida panhandle
Publisher: Wiley
Date: 05-06-2013
DOI: 10.1002/ESP.3436
Controls on dune scarping
Publisher: SAGE Publications
Date: 21-07-2020
Abstract: The controls that affect the degree of spatio-temporal change to foredunes following scarping are reviewed herein. As sea-levels rises and climate changes, dune scarping will become more common. Thus, it is critical to understand what factors contribute to the magnitude of scarping, and what effect this has on dune systems to better manage coastal erosion into the future. Scarping occurs when foredunes are partially eroded by waves, generally during periods of high water level. The controls on the degree and magnitude of scarping examined include water level, foredune vegetation cover and species present, plant root mass, height and volume of the foredune, the original foredune morphology, surfzone–beach type, and compaction of sediment. Water-level height and duration of high water is the most significant control as it determines the elevation at which wave action can erode the dune and, therefore, the extent of scarping and dune volumetric loss. Higher plant density, greater rooting depth, high root mass, and greater compaction aid in reducing the degree of scaping. The presence of large woody debris and wrack may also influence the degree of scarping. The effects scarping has on the morphology of a foredune after the initial erosion event can range from small changes (e.g. minor, small scarps and slight slumping), to moderate changes such as the foredune translating landwards, to large change such as the transition of an entire dune system into a new transgressive dunefield phase. A new model summarising the key controls and their relationship/significance to the magnitude and extent of scarping is presented.
Historical evolution and controls on mega-blowouts in northeastern Qinghai-Tibetan Plateau, China
Publisher: Elsevier BV
Date: 03-2019
Obituary for Prof. Lauro Júlio Calliari (1951–2023)
Publisher: Elsevier BV
Date: 10-2023
Inland Dunes of North America
Publisher: Springer International Publishing
Date: 2020
Rapid shoreline erosion and dunefield Change, Salmon Hole, South Australia
Publisher: Elsevier BV
Date: 05-2021
Holocene freshwater history of the Lower River Murray and its terminal lakes, Alexandrina and Albert, South Australia, and its relevance to contemporary environmental management
Publisher: Informa UK Limited
Date: 31-01-2022
Ground Penetrating Radar of Paleoblowouts and Transgressive Dunes, Younghusband Peninsula, South Australia
Publisher: Coastal Education and Research Foundation
Date: 27-06-2022
Coastal Dunes: Human Impact and Need for Restoration
Publisher: Springer Berlin Heidelberg
Date: 2013
Surfzone-beach-dune interactions along a variable low wave energy dissipative beach
Publisher: Elsevier BV
Date: 05-2021
Restoration of Foredunes and Transgressive Dunefields: Case Studies from New Zealand
Publisher: Springer Berlin Heidelberg
Date: 2013
Responses of three-dimensional flow to variations in the angle of incident wind and profile form of dunes: Greenwich Dunes, Prince Edward Island, Canada
Publisher: Elsevier BV
Date: 04-2009
Flow within a Trough Blowout at Cape Cod
Publisher: Coastal Education and Research Foundation
Date: 03-03-2016
DOI: 10.2112/SI75-058.1
Three-dimensional æolian dynamics within a bowl blowout during offshore winds: Greenwich Dunes, Prince Edward Island, Canada
Publisher: Elsevier BV
Date: 2012
The Environmental Impact Assessment process in Singapore with particular respect to coastal environments and the role of NGOs
Publisher: Springer Science and Business Media LLC
Date: 09-1995
DOI: 10.1007/BF02905122
Coastal geomorphology in New Zealand, 1989-99
Publisher: SAGE Publications
Date: 12-1999
DOI: 10.1177/030913339902300403
Abstract: This article reviews coastal geomorphological research published in New Zealand or international journals which has been carried out in New Zealand during the past ten years. All coastal environments are covered, including tidal inlets, estuaries and lagoons, beach, surfzone, nearshore and shelf environments, and rocky coasts. Applied coastal studies are also covered. While the New Zealand coastal science community remains relatively small, a significant body of work has been carried out, much of it innovative and unique. However, with 11 000 km of very erse coastline covering 13 degrees of latitude available for study, there are many areas, geographical as well as disciplinary, that remain poorly researched.
Environmental variables affecting an arid coastal nebkha
Publisher: Elsevier BV
Date: 04-2022
DOI: 10.1016/J.SCITOTENV.2021.152868
Abstract: Foredunes in arid coastal dune systems comprise nebkhas, which originate by interactions between vegetation and aeolian sedimentation. While continuous foredunes in temperate climates have been widely studied, knowledge of interactions between biotic and abiotic drivers in foredunes formed by nebkha is still scarce. With the aim of exploring variables affecting arid foredunes, a range of morphological, sedimentological, and vegetation characteristics were measured on a single nebkha formed by a Traganum moquinii plant located in the foredune of Caleta de Famara beach (Lanzarote, Canary Islands). Variables were s led at 120 plots in a 0.5 × 0.5 m square grid. A two-step process using multiple linear regression (MLR) analyses was developed to characterize 1) the influence that morphological variables and distance from the sea have on plant and sediment patterns on nebkha, and 2) the influence of plants on depositional sediment characteristics. Results indicate close relationships between distance from the sea, plant coverage, and sediment patterns. Empirical results were used to develop a conceptual model that explains the spatial distribution of bio- and geo-morphological characteristics of an arid nebkha foredune.
Three years of morphologic changes at a bowl blowout, Cape Cod, USA
Publisher: Elsevier BV
Date: 10-2017
Climate as a control on foredune mode in Southern Australia
Publisher: Elsevier BV
Date: 12-2019
DOI: 10.1016/J.SCITOTENV.2019.133768
Abstract: Foredunes are formed by aeolian sand deposition in vegetation on the backshore of beaches. In this paper, the foredune mode (nebkha, discontinuous foredune, and continuous foredune), and transgressive dunefield development is studied along the Great Australian Bight (GAB), 2668 km of coastline. Orthophotos are used to classify the foredune mode, coastal landforms and the vegetation, through geographic information systems (GIS), with fieldwork support. The results show that the foredune mode is strongly controlled by rainfall and temperature with respect to latitude, and to drift potential with respect to longitude across the GAB. Between 200 and 300 mm annual rainfall, nebkha predominate. When the annual rainfall is between 300 and 400, at latitude 32°, a clear pattern is not observed in foredune mode and this is identified as a transition zone. Discontinuous foredunes and continuous foredunes are strongly represented in regions experiencing above 400 mm annual rainfall. The main contribution of this study is the identification of foredune modes which are not only related to a climatic gradient and latitude, but also related to variations in longitude, vegetation cover and ersity, and dune mobility indices. Finally, there are other environmental relationships between the wind and longitude, where the geomorphology of the bay could be playing an important role.
Width, height and slope relationships and aerodynamic maintenance of barchans
Publisher: Elsevier BV
Date: 03-1998
Morphology, dynamics and internal stratification of some established foredunes in southeast Australia
Publisher: Elsevier BV
Date: 03-1988
Salt Spray Distribution and Its Impact on Vegetation Zonation on Coastal Dunes: a Review
Publisher: Springer Science and Business Media LLC
Date: 21-08-2020
Aeolian dynamics over a coastal foredune, Prince Edward Island, Canada
Publisher: Wiley
Date: 10-07-2013
DOI: 10.1002/ESP.3444
Effects of artificial light on flowering of foredune vegetation
Publisher: Wiley
Date: 29-03-2019
DOI: 10.1002/ECY.2678
Abstract: The impact of ecological light pollution involves alteration of periods of natural light, a fact that has proven effects on ecosystems. Few studies have focused on the impact of this pollution on wild plant species, and none on coastal dune plants. Many coastal dunes and their plants are adjacent to tourist areas, and these might be affected by light pollution. Such is the case of the Natural Reserve Dunas de Maspalomas (Gran Canaria), where some in iduals of the plant species Traganum moquinii, located in the El Inglés beach foredune zone, are affected by light pollution. This study examines the effect of light pollution on the flowering process and, by extension, the reproductive cycle of these plants. Plants located closer to high artificial illumination sources receive ~2,120 h/yr of intense light more than plants located furthest from those artificial lighting sources. Parts of the plants of Traganum moquinii exposed directly to the artificial light show a significant decrease in the production of flowers, compared to the parts in plants in shade, and to the plants more distant from artificial lights. In consequence, plants exposed more directly to artificial light have a lower potential for seed reproduction. The spectrum of artificial light also affects the plants, and light between 600 and 700 nm primarily affects the reproductive cycle of the Traganum moquinii species. The implications for the ecological and geomorphological functioning of the dune system are discussed, because this species plays a decisive role in the formation of foredune zones and nebkhas in arid dune systems.
Spatial–temporal evolution of aeolian blowout dunes at Cape Cod
Publisher: Elsevier BV
Date: 05-2015
Morphological evolution of the sandspit at Tortugueros Beach, Mexico
Publisher: Elsevier BV
Date: 2019
Morphology, dynamics, ecology and fauna of Arctotheca populifolia and Gazania rigens nabkha dunes
Publisher: Elsevier BV
Date: 02-2000
Aeolian sediment transport on a beach: Surface moisture, wind fetch, and mean transport
Publisher: Elsevier BV
Date: 04-2009
Crescentic dunes at Schiermonnikoog, The Netherlands
Publisher: Wiley
Date: 08-1997
DOI: 10.1002/(SICI)1096-9837(199708)22:8<785::AID-ESP813>3.0.CO;2-F
Morphodynamics of Incipient Foredunes in New South Wales, Australia
Publisher: Elsevier
Date: 1983
Numerical Modelling of Turbulent Flow Structures in a Trough Blowout
Publisher: Coastal Education and Research Foundation
Date: 03-03-2016
DOI: 10.2112/SI75-066.1
Last glacial “coastal” dunes in Eastern Australia and implications for landscape stability during the Last Glacial Maximum
Publisher: Elsevier BV
Date: 10-1994
Post‐wildfire coastal dunefield response using photogrammetry and satellite indices
Publisher: Wiley
Date: 13-04-2023
DOI: 10.1002/ESP.5591
Abstract: Fire has been suggested to be an initiation mechanism of landscape instability and coastal dune transgression, but modern evidence showing a shift to a transgressive dune phase is lacking. Following the largest wildfire in historical records on Kangaroo Island, South Australia, bimonthly uncrewed aerial vehicle (UAV) surveys were conducted on three coastal dune sites to study their post‐fire responses. The three sites studied here represent the landscape ersity of the temperate dunes of Kangaroo Island with both active coastal and inland relict stabilised dune fields studied. UAV surveys were used to reconstruct landscapes with structure from motion (SfM) photogrammetry and compared over time to illustrate significant changes in the landscape. The geomorphic and vegetation changes are compared in net and intra‐survey comparisons to illustrate the post‐fire dunefield response and trends towards stabilisation. Because of a lack of reliable baseline pre‐fire data, satellite geomedians are used to compute spectral indices to show the trajectory of ground cover in the study sites in the years preceding and following the fire. Satellite indices are used to separate 3D changes according to ground cover types and show their differing post‐fire responses. Local and regional wind, temperature and rainfall records are presented to provide weather patterns of the years preceding and following the fire, illustrating the wet and mild post‐fire weather. The overall results indicate no significant landscape instability across the studied sites and that the ground cover of vegetation is nearing pre‐fire baselines, showing that a severe fire has not caused a transgressive dunefield to develop.
Some aspects of the late Quaternary geomorphology of the lower Manawatu Valley, New Zealand
Publisher: Informa UK Limited
Date: 05-1978
Geomorphological changes in an arid transgressive coastal dune field due to natural processes and human impacts
Publisher: Wiley
Date: 25-04-2018
DOI: 10.1002/ESP.4382
Assessing Shoreline Change using Historical Aerial and RapidEye Satellite Imagery (Cape Jaffa, South Australia)
Publisher: Coastal Education and Research Foundation
Date: 03-05-2021
Coastal Barriers – An Introduction
Publisher: Springer Berlin Heidelberg
Date: 2009
Late-Holocene cliff-top blowout activation and evolution in the Cooloola Sand Mass, south-east Queensland, Australia
Publisher: SAGE Publications
Date: 06-08-2018
Abstract: Cliff-top dunes are a locally important geomorphic features of sedimentary coasts. They are traditionally interpreted as being sourced by (or with) sand derived from the beach below the cliff. This paper presents the results of a stratigraphic and geochronological study of Carlo Sand Blow, a coastal blowout that has developed on top of a high sandy cliff in the Cooloola Sand Mass, south-east Queensland. We use a combination of sedimentological, pedological and geophysical techniques along with optically stimulated luminescence dating to determine the depositional history and evolution of the blowout. We demonstrate that the blowout is dominantly nourished by sand eroded from its floor rather than the adjacent beach. The original dune surface dates to the first half of the last glacial period (c. 40–70 ka) and this dune was deflated in the late-Holocene. Dune activity is directly associated with cliff undercutting because of coastal retreat in the late-Holocene, but coastal erosion on its own is not capable of maintaining aeolian activity. Blowout activity occurred between 2.6 and 2.3 ka and again at 0.3 ka with aeolian sand burying palaeosols. Both soil surfaces contained charcoal and tree stumps in growth position and our study suggests that fire is the immediate trigger for blowout reactivation. It is likely that these fires were anthropogenic in origin, because the site is somewhat protected from natural fire and the ages coincide with intensification of human use of coastal sites in the area.
Drowning, Not Waving
Publisher: Coastal Education and Research Foundation
Date: 26-08-2020
DEVELOPMENT OF COASTAL HOLOCENE TRANSGRESSIVE DUNEFIELDS: EXAMPLES FROM SOUTH AUSTRALIA
Publisher: WORLD SCIENTIFIC
Date: 05-2019
Topographic Steering of Alongshore Airflow over a Vegetated Foredune: Greenwich Dunes, Prince Edward Island, Canada
Publisher: Coastal Education and Research Foundation
Date: 09-2006
DOI: 10.2112/06A-0010.1
Flow deflection over a foredune
Publisher: Elsevier BV
Date: 02-2015
Flow dynamics and sediment transport over a reversing barchan, Changli, China
Publisher: Elsevier BV
Date: 02-2017
A large mid-Holocene estuary was not present in the lower River Murray, Australia
Publisher: Springer Science and Business Media LLC
Date: 08-06-2021
Coastal Dune Restoration: Trends and Perspectives
Publisher: Springer Berlin Heidelberg
Date: 2013
Event-free survival at 12 months is a strong surrogate endpoint for stage 1 diffuse large B cell lymphoma: a report from Nation Wide Registry Thai Lymphoma Study Group
Publisher: Informa UK Limited
Date: 23-06-2020
Multiple origins of linear dunes on Earth and Titan
Publisher: Springer Science and Business Media LLC
Date: 16-08-2009
DOI: 10.1038/NGEO610
Conceptual models of the evolution of transgressive dune field systems
Publisher: Elsevier BV
Date: 10-2013
Airflow dynamics, vegetation and aeolian erosive processes in a shadow zone leeward of a resort in an arid transgressive dune system
Publisher: Elsevier BV
Date: 06-2019
Late-Holocene sea levels from vermetids and barnacles at Ponta do Papagaio, 27° 50′S latitude and a comparison with other sectors of southern Brazil
Publisher: Elsevier BV
Date: 06-2022
Decadal monitoring of Traganum moquinii's role on foredune morphology of an human impacted arid dunefield
Publisher: Elsevier BV
Date: 03-2021
Sea level rise outpaced by vertical dune toe translation on prograding coasts
Publisher: Springer Science and Business Media LLC
Date: 17-06-2021
DOI: 10.1038/S41598-021-92150-X
Abstract: Sea level is rising due to climate change and is expected to influence the development and dynamics of coastal dunes. However, the anticipated changes to coastal dunes have not yet been demonstrated using field data. Here, we provide evidence of dune translation that is characterized by a linear increase of the dune toe elevation on the order of 13–15 mm/year during recent decades along the Dutch coast. This rate of increase is a remarkable 7–8 times greater than the measured sea level rise. The observed vertical dune toe translation coincides with seaward movement of the dune toe (i.e., progradation), which shows similarities to prograding coasts in the Holocene both along the Dutch coast and elsewhere. Thus, we suspect that other locations besides the Dutch coast might also show such large ratios between sea level rise and dune toe elevation increase. This phenomenon might significantly influence the expected impact of sea level rise and climate change adaptation measures.
11.17 Coastal Dunes
Publisher: Elsevier
Date: 2013
Assessing the Impact of a Winter Storm on the Beach and Dune Systems and Erosion Mitigation by Plants
Publisher: Frontiers Media SA
Date: 24-08-2021
DOI: 10.3389/FMARS.2021.734036
Abstract: The impact of storms on coastal dunes and beaches and the effects they induce in topography and plant communities are natural processes that contribute to maintaining natural coastal dynamics. However, because coasts are often densely populated, these phenomena are perceived as major threats to human property. To protect human assets sustainably, nature-based defenses have emerged as an option. Coastal dunes act as natural buffers that mitigate the extent of erosion and inland flooding, and their resistance depends on the biogeomorphological feedback between the plants and the dunes. This study aimed to evaluate the effect of one winter storm on beach and dune topography and the plant communities, and to explore the effect of plants in mitigating erosion on beaches with different geomorphological features. The effects on plant communities were evaluated by comparing ersity and plant cover before and after the storm. Later, the role of plants in conferring dune resistance against erosion was examined by measuring erosion on the exposed face of the dunes considering plant cover and plant richness. The results did not show significant differences in plant ersity and plant cover between pre-and post-storm conditions, but turnover of species was recorded. The dune building species were not affected but inland species disappeared. Erosion was reduced when the dunes were higher and, furthermore, plant cover was negatively correlated with erosion on these dunes. The results showed a reduced impact of the storm on the plant communities, which is important as it facilitates the recovery of dunes by the dune-building species and protects them in a subsequent storm. The novelty of this study is that: (a) it demonstrates the species-specific role of plants in mitigating dune erosion in field conditions (b) it shows the interaction between plant-related features and geomorphological variables in promoting dune resistance to erosion, and (c) it explores the immediate effect of a winter storm on the plant community and dune-building species.
Aeolian granule ripple deposits, Namibia
Publisher: Wiley
Date: 04-1992
Flow dynamics over a foredune at Prince Edward Island, Canada
Publisher: Elsevier BV
Date: 02-2005
Non-Hodgkin lymphoma in South East Asia: An analysis of the histopathology, clinical features, and survival from Thailand
Publisher: Wiley
Date: 23-03-2017
DOI: 10.1002/HON.2392
Abstract: Systemic reports on the descriptive epidemiology of non-Hodgkin lymphoma (NHL) from Southeast Asia are scarce. A nationwide multi-institutional registry was conducted to compare the histopathology, clinical features, and survival of Thai adult patients with NHL using large registries, especially those from Far East Asia (FEA). Using a web-based registry system, 13 major medical centers from the 4 geographic regions of Thailand prospectively collected, from 2007 to 2014, the diagnostic pathology, according to the World Health Organization classification, 2008, clinical features and survival of 4056 patients who were newly diagnosed with NHL. The median age of the patients was 56 years (range, 16-99 years). The male-to-female ratio was 1.3:1. From the total of 4056 patients, T/NK-cell lymphoma (TNKCL) accounted for 12.6% of cases, and 5.1% had human immunodeficiency virus-associated lymphoma. The four leading histological subtypes were diffuse large B-cell lymphoma, not otherwise specified (58.1%) follicular lymphoma (5.6%) extranodal mucosa-associated lymphoid tissue lymphoma (5.2%) and peripheral T-cell lymphoma, not otherwise specified (4.0%). With a median follow-up duration of 46.1 months, the median overall survival of B-cell NHL was significantly longer than that of patients with TNKCL (76.5 vs 28.8 months, P = .0001). Compared to FEA, the Thai registry had an approximately one-half lower relative frequency of TNKCL the prevalence of extranodal mucosa-associated lymphoid tissue lymphoma was much lower than in Korea, and the frequency of extranodal TNKCL, nasal type, was strikingly low compared to China. It is concluded that while the median age of Thai patients with NHL was approximately a decade younger than for Caucasians, the long-term survival rates for most histological subtypes were comparable. While the histological distribution generally complied with the characteristic Asian features, some differences from FEA were observed.
Connections: The Teaching and Learning of Geography at New Zealand Universities
Publisher: Wiley
Date: 05-2009
A New Application of the Disturbance Index for Fire Severity in Coastal Dunes
Publisher: MDPI AG
Date: 23-11-2021
DOI: 10.3390/RS13234739
Abstract: Fires are a disturbance that can lead to short term dune destabilisation and have been suggested to be an initiation mechanism of a transgressive dune phase when paired with changing climatic conditions. Fire severity is one potential factor that could explain subsequent coastal dune destabilisations, but contemporary evidence of destabilisation following fire is lacking. In addition, the suitability of conventional satellite Earth Observation methods to detect the impacts of fire and the relative fire severity in coastal dune environments is in question. Widely applied satellite-derived burn indices (Normalised Burn Index and Normalised Difference Vegetation Index) have been suggested to underestimate the effects of fire in heterogenous landscapes or areas with sparse vegetation cover. This work assesses burn severity from high resolution aerial and Sentinel 2 satellite imagery following the 2019/2020 Black Summer fires on Kangaroo Island in South Australia, to assess the efficacy of commonly used satellite indices, and validate a new method for assessing fire severity in coastal dune systems. The results presented here show that the widely applied burn indices derived from NBR differentially assess vegetation loss and fire severity when compared in discrete soil groups across a landscape that experienced a very high severity fire. A new application of the Tasselled Cap Transformation (TCT) and Disturbance Index (DI) is presented. The differenced Disturbance Index (dDI) improves the estimation of burn severity, relative vegetation loss, and minimises the effects of differing soil conditions in the highly heterogenous landscape of Kangaroo Island. Results suggest that this new application of TCT is better suited to erse environments like Mediterranean and semi-arid coastal regions than existing indices and can be used to better assess the effects of fire and potential remobilisation of coastal dune systems.
Aeolian Geodiversity of the Itapeva Dunefield (Brazil) and Geoconservation in the Management of Protected Areas
Publisher: Springer Science and Business Media LLC
Date: 17-10-2022
Reply to the discussion by Gell and Finlayson (2023)
Publisher: Informa UK Limited
Date: 26-02-2023
Review and direct evidence of transgressive aeolian sand sheet and dunefield initiation
Publisher: Wiley
Date: 06-06-2022
DOI: 10.1002/ESP.5400
Abstract: The multiple hypotheses which exist to explain the initiation of transgressive aeolian sand sheets and dunefields, are reviewed and discussed. Direct evidence supporting many of these hypotheses is largely lacking. In South Australia, the Younghusband Peninsula coastal barrier extends ~180 km and predominantly comprises transgressive and parabolic dunefields. The 42 Mile Crossing area on the barrier is undergoing significant erosion at variable rates of 0.5 to 5.0 m/yr, and a new transgressive aeolian sand sheet has rapidly developed in ~1 year and is extending landwards at an average rate of 13 m/yr. This research provides unequivocal evidence that large‐scale shoreline and dunefield erosion does lead to the development of a new transgressive aeolian sand sheet (and eventual dunefield) phase thereby demonstrating an initiation mechanism that is likely linked to future sea level rise and climate change. We also show that the initiation process, and, in particular, the subsequent rate of sand sheet transgression occurs at an incredibly rapid rate (+100 m in 8 years). Coastal sand dunes border many of the world's coastlines and are highly adapted to local climate and conditions. How coastal dunes transition from predominantly vegetated and stable systems to wind‐blown sand sheets and dunefields transgressing prior terrain is a research area of pressing relevance due to forecasts of sea level rise and climate change. The factors or triggers that are considered to initiate transgressive aeolian sand sheets and dunefields are reviewed. The formation and evolution of a new transgressive aeolian sand sheet phase triggered by large‐scale shoreline erosion in South Australia is presented. According to the results from historical and satellite images, local shoreline erosion began in the late 1970s and has continued at highly variable rates. We show that once the foredune was removed, the high scarp created by wave erosion of the relict, vegetated transgressive dunefield destabilized and was then eroded by wind processes leading to the rapid development of a transgressive aeolian sand sheet. The initiation and evolution of the sand sheet provides an excellent ex le of how dunefields might respond to future sea level rise and climate change.
Flow dynamics over a foredune scarp
Publisher: Wiley
Date: 14-01-2019
DOI: 10.1002/ESP.4555
Coastline orientation, aeolian sediment transport and foredune and dunefield dynamics of Moçambique Beach, Southern Brazil
Publisher: Elsevier BV
Date: 08-2010
Linking restoration ecology with coastal dune restoration
Publisher: Elsevier BV
Date: 10-2013
Beach–dune sediment budgets and dune morphodynamics following coastal dune restoration, Wickaninnish Dunes, Canada
Publisher: Wiley
Date: 08-03-2016
DOI: 10.1002/ESP.3910
Is ‘re-mobilisation’ nature restoration or nature destruction? A commentary
Publisher: Springer Science and Business Media LLC
Date: 11-11-2019
DOI: 10.1007/S11852-019-00716-9
Abstract: Coastal dunes are experiencing increases in vegetation cover and reduced mobility levels in many sites around the world. Ecology-led approaches to coastal dune management perceive this change as ‘undesirable’ because the increase in plant cover leads to a reduction in partially vegetated to bare sand habitats and the species depending on them. This has generated a shift in the management paradigm where the objective is to revert this trend by intervening in the landscape, with actions ranging from re-introducing grazing and mowing, to mechanical removal of dune form and vegetation (dune ‘rejuvenation’). In some cases, such as many coastal dunes in Britain, this has also led to low controls on visitor pressure and allowing romoting human tr ling as a ‘natural’ way to free up areas of bare sand. This commentary critically analyses the main principles (and terminology) underlying this relatively recent shift in management paradigm, and questions assumptions such as ‘bare sand is good’ and/or ‘mobility is natural’ in the context of dune evolutionary cycles and responses to abiotic and biotic drivers. We review the limitations and dangers of this approach and argue that it is not sustainable given the current climatic and environmental conditions, and that it can increase the risk of coastal erosion and force dune systems to deviate from adapting and changing to direct/indirect drivers. Finally, we present the benefits of a management approach that focuses on minimizing human impacts so that natural processes continue to occur.
Nebkha flow dynamics and shadow dune formation
Publisher: Elsevier BV
Date: 04-2017
Surfzone-Beach-Dune interactions: Flow and Sediment Transport across the Intertidal Beach and Backshore
Publisher: Coastal Education and Research Foundation
Date: 03-03-2016
DOI: 10.2112/SI75-002.1
Secondary central nervous system relapse in diffuse large B cell lymphoma in a resource limited country: result from the Thailand nationwide multi-institutional registry
Publisher: Springer Science and Business Media LLC
Date: 18-10-2016
DOI: 10.1007/S00277-016-2848-Y
Abstract: Secondary central nervous system (CNS) relapse is a serious and fatal complication of diffuse large B cell lymphoma (DLBCL). Data on secondary CNS (SCNS) relapse were mostly obtained from western countries with limited data from developing countries. We analyzed the data of 2034 newly diagnosed DLBCL patients enrolled into the multi-center registry under Thai Lymphoma Study Group from setting. The incidence, September 2006 to December 2013 to represent outcome from a resource limited pattern, management, and outcome of SCNS relapse were described. The 2-year cumulative incidence (CI) of SCNS relapse was 2.7 %. A total of 729, 1024, and 281 patients were classified as low-, intermediate-, and high-risk CNS international prognostic index (CNS-IPI) with corresponding 2-year CI of SCNS relapse of 1.5, 3.1, and 4.6 %, respectively (p < 0.001). Univariate analysis demonstrated advance stage disease, poor performance status, elevated lactate dehydrogenase, presence of B symptoms, more than one extranodal organ involvement, high IPI, and high CNS-IPI group as predictive factors for SCNS relapse. Rituximab exposure and intrathecal chemoprophylaxis offered no protective effect against SCNS relapse. At the time of analysis, six patients were alive. Median OS in SCNS relapsed patients was significantly shorter than relapsed patients without CNS involvement (13.2 vs 22.6 months) (p < 0.001). Primary causes of death were progressive disease (n = 35, 63.6 %) and infection (n = 9, 16.7 %). In conclusion, although the incidence of SCNS relapse in our cohort was low, the prognosis was dismal. Prophylaxis for SCNS involvement was underused even in high-risk patients. Novel approaches for SCNS relapse prophylaxis and managements are warranted.
Scale-dependent perspectives on the geomorphology and evolution of beach-dune systems
Publisher: Elsevier BV
Date: 08-2017
Coastal wetlands and the Neanderthal settlement of Portuguese Estremadura
Publisher: Wiley
Date: 05-10-2010
DOI: 10.1002/GEA.20330
Mangrove Establishment in an Artificially Constructed Estuarine Channel, Sungei Api-Api, Singapore
Publisher: Springer International Publishing
Date: 2018
Restoration of Coastal Dunes
Publisher: Springer Berlin Heidelberg
Date: 2013
Natural remobilization and historical evolution of a modern coastal transgressive dunefield
Publisher: Wiley
Date: 15-01-2023
DOI: 10.1002/ESP.5535
Abstract: The vast majority of coastal dunes in Europe have been stabilized by increasing vegetation cover since the mid‐20th century. However, some systems may experience a remobilization phase, generally occurring locally and further propagating alongshore, the drivers of which remain poorly documented. This study investigates the evolutionary paths (stabilization/destabilization/remobilization) from 1945 to 2020 of a 2 km‐long modern coastal transgressive dunefield located in southwest France with a holistic approach (GPR profiles, aerial photographs and LiDAR topographic data). Results show a landward migration of the transgressive dune by approximately 233 ± 7.5 m, through two distinct stages of rapid landward migration from 10 to 23 m/yr (Stage I: 1949–1959 and Stage III: 2000–2021) separated by an approximately 40‐year stage of slow to no migration, but with substantial windward slope deflation (Stage II). The onset of Stage II is due to the fixation of vegetation by human action between 1950 and 1959. The onset of Stage III is hypothesized to be driven by long and sustained upper backshore/dune toe erosion beginning in 1968 due to a massive shoal welding that locally disturbed the longshore drift. It induced a destabilization of the dune and erosion of the vegetation cover over some decades. A non‐synchronization is therefore observed between the start of the perturbation (1968), then the migration (2000), in line with the hysteresis concept of Tsoar (2005). This study shows that almost all of the sedimentary volume of the 1945 dune has been remobilized by translation to shape the dune system in its current form. The 2.2 km dunefield has grown by approximately 673 000 ± 190 000 m 3 during the 2005–2020 period. Among this volume, there is a new foredune that was built from 2005 between the upper beach and the transgressive dune (volume in 2020 of about 394 000 ± 68 000 m 3 ).
Beach ridges, foredunes or transgressive dunefields? Definitions and an examination of the Torres to Tramandaí barrier system, Southern Brazil
Publisher: FapUNIFESP (SciELO)
Date: 09-2005
DOI: 10.1590/S0001-37652005000300010
Abstract: Many prograded barriers and some dunefields in theworld have been termed 'beach ridge' plains, but the actual genesis of the 'ridges' is often unknown. Use of the terms, berms, beach ridges and foredunes is also confusing in the literature because their definitions are highly variable and are commonly used interchangeably. Thus, the formation and definition of sand berms, beach ridges and foredunes is briefly reviewed. Beach ridges are re-defined as entirely wave formed deposits which are most commonly formed during high wave conditions and/or elevated water levels (e.g. storm surges). Foredunes are formed by aeolian sand deposition in vegetation on the backshore. Some dunefields in Brazil have been called beach ridge plains when they are, in fact, foredune plains, transgressive dunefields, or complex barriers (i.e. barriers comprising two types of dunes). The Holocene barrier extending from Torres to Tramandaí in southern Brazil has been regarded as a beach ridge plain. The landforms of this Holocene barrier comprise wide, relatively linear, widely spaced (400-600m), shore parallel ridges on the landward half, and more closely spaced (80-400m), lobate and crescentic, discrete ridges on the seaward half. Low, rolling dunefields, sand sheets, nebkha fields and deflation plains occur between the ridges. The barrier is re-interpreted as a prograded, transgressive dunefield barrier.
Optimization of UAVs‐SfM data collection in aeolian landform morphodynamics: a case study from the Gonghe Basin, China
Publisher: Wiley
Date: 18-08-2020
DOI: 10.1002/ESP.4965
Abstract: UAVs‐SfM (unmanned aerial vehicles‐structure‐from‐motion) systems can generate high‐resolution three‐dimensional (3D) topographic models of aeolian landforms. To explore the optimization of UAVs‐SfM for use in aeolian landform morphodynamics, this study tested flight parameters for two contrasting aeolian landform areas (free dune and blowout) to assess the 3D reconstruction accuracy of the UAV survey compared with field point measurements using differential RTK‐GPS (real‐time kinematic‐global positioning system). The results reveal the optimum UAVs‐SfM flight set‐up at the free‐dune site was: flying height = 74 m, camera tilt angle = −90°, photograph overlap ratio = 85%/70% (heading/sideways). The horizontal/vertical location error was around 0.028–0.055 m and 0.053–0.069 m, respectively, and a point cloud density of 463/m 3 was found to generate a clear texture using these flying parameters. For the 20 m deep blowout the optimum set‐up with highest accuracy and the lowest cliff texture distortion was: flying height = 74 m combined camera tilt angle = −90° and −60°, photograph overlap ratio = 85%/70% (heading/sideways), and an evenly distributed GCPs (ground control points) density of 42/km 2 using these flying parameters. When the depth of the blowouts exceeded 40 m, the optimum flight/survey parameters changed slightly to account for more challenging cliff texture generation: flying height = 80 m (with −90° and −60°combined camera tilt angle), GCPs density = 63/km 2 to generate horizontal and vertical location error of 0.024 m and 0.050 m, respectively, and point cloud density of 2597.11/m 3 . The main external factors that affect the successful 3D reconstruction of aeolian landforms using UAVs‐SfM are the weather conditions, manipulation errors, and instrument system errors. The UAVs‐SfM topographic monitoring results demonstrate that UAVs provide a viable and robust means for aeolian landform morphodynamics monitoring. Importantly, the rapid and high precision 3D reconstruction processes were significantly advanced using the optimal flight parameters reported here. © 2020 John Wiley & Sons, Ltd.
Remote sensing delineation of wildfire spatial extents and post-fire recovery along a semi-arid climate gradient
Publisher: Elsevier BV
Date: 12-2023
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