ORCID Profile
0000-0003-4549-1686
Current Organisations
Bond University
,
Hanyang University - Ansan Campus
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Publisher: American Geophysical Union (AGU)
Date: 11-02-2022
DOI: 10.1029/2021GL096135
Abstract: Few studies explore how the ersity of El Niño and Southern Oscillation (ENSO)‐related atmospheric response is influenced by anthropogenic forcing and ENSO intensity. We examine the ersity of surface temperature (Ts) anomalies related to weak, moderate and strong ENSO events in North America (NA) for present and future climates forced under four Shared Socioeconomic Pathways (SSP) scenarios in CMIP6 climate models. When ENSO intensity is weaker, the NA Ts anomalies are more sensitive/variable to different SSP scenarios than moderate and strong ENSO. The NA Ts anomalies are more sensitive to the impacts of ENSO intensity under a sustainable climate change scenario, compared to the high SSP scenario. We discuss why the ersity of ENSO‐related Ts response projections differs in the combination of ENSO intensity and climate change scenarios.
Publisher: Informa UK Limited
Date: 09-2020
Publisher: American Geophysical Union (AGU)
Date: 17-02-2018
DOI: 10.1002/2017RG000568
Publisher: Springer Science and Business Media LLC
Date: 08-07-2022
DOI: 10.1038/S41612-022-00279-X
Abstract: Arctic oscillation (AO), which is the most dominant atmospheric variability in the Northern Hemisphere (NH) during the boreal winter, significantly affects the weather and climate at mid-to-high latitudes in the NH. Although a climate community has focused on a negative trend of AO in recent decades, the significant positive trend of AO over the last 60 years has not yet been thoroughly discussed. By analyzing reanalysis and Atmospheric Model Inter-comparison Project (AMIP) datasets with pacemaker experiments, we found that sea surface temperature warming in the Indian Ocean is conducive to the positive trend of AO from the late 1950s. The momentum flux convergence by stationary waves due to the Indian Ocean warming plays an important role in the positive trend of AO, which is characterized by a poleward shift of zonal-mean zonal winds. In addition, the reduced upward propagating wave activity flux over the North Pacific due to Indian Ocean warming also plays a role to strengthen the polar vortex, subsequently, it contributes to the positive trend of AO. Our results imply that the respective warming trend of tropical ocean basins including Indian Ocean, which is either anthropogenic forcing or natural variability or their combined effect, should be considered to correctly project the future AO’s trend.
Publisher: Springer Science and Business Media LLC
Date: 21-06-2011
Publisher: Springer Science and Business Media LLC
Date: 17-08-2021
Publisher: Springer Science and Business Media LLC
Date: 13-07-2023
DOI: 10.1038/S41558-023-01728-Y
Abstract: Earth system models exhibit considerable intermodel spread in Atlantic Meridional Overturning Circulation intensity and its carbon uptake, resulting in great uncertainty in future climate. Here we show that present-day sea surface salinity (SSS) in the North Atlantic subpolar region modulates anthropogenic carbon uptake in the North Atlantic, and thus can be used to constrain future warming. Specifically, models that generate a present-day higher SSS in the North Atlantic subpolar region generate a greater uptake of anthropogenic carbon in the future, suppressing the greenhouse effect and resulting in slower warming, and vice versa in models with a present-day lower SSS. Emergent constraints based on the observed SSS greatly reduce the uncertainty of the Northern Hemisphere surface temperature warming and accumulative carbon uptake by about 30% and 53%, respectively, by the end of the twenty-first century under the Shared Socioeconomic Pathways 5–8.5 scenario.
Publisher: University of New South Wales Law Journal
Date: 03-2019
DOI: 10.53637/TYBL5821
Abstract: The underlying rationale for prohibiting discrimination continues to be subject to significant debate. This debate leads to a lack of clarity with respect to the kinds of harms anti-discrimination law is designed to prevent and the kinds of behaviours it is designed to capture. A frequent criticism of the Australian courts’ approach to discrimination law is that it fails to grapple with the underlying purpose of anti-discrimination law. The consequence of this failure is a jurisprudence that is underdeveloped. This paper makes a different argument. This article argues that the Australian courts can and do give a purposive interpretation to anti-discrimination law but the purpose that the courts draw on lacks an underpinning coherence or consistency. This paper will make this argument by considering three recent Australian appellate court decisions on disability discrimination to consider the different ways in which the court exhibits an understanding of the purpose of anti-discrimination law.
Publisher: Springer Science and Business Media LLC
Date: 07-2018
DOI: 10.1038/S41586-018-0252-6
Abstract: El Niño events are characterized by surface warming of the tropical Pacific Ocean and weakening of equatorial trade winds that occur every few years. Such conditions are accompanied by changes in atmospheric and oceanic circulation, affecting global climate, marine and terrestrial ecosystems, fisheries and human activities. The alternation of warm El Niño and cold La Niña conditions, referred to as the El Niño-Southern Oscillation (ENSO), represents the strongest year-to-year fluctuation of the global climate system. Here we provide a synopsis of our current understanding of the spatio-temporal complexity of this important climate mode and its influence on the Earth system.
Publisher: Springer Science and Business Media LLC
Date: 05-10-2016
Publisher: American Geophysical Union (AGU)
Date: 15-06-2017
DOI: 10.1002/2017GL073778
Publisher: Monash University
Date: 2019
Publisher: Hart Publishing
Date: 2023
Publisher: Springer Science and Business Media LLC
Date: 09-11-2019
Publisher: Springer Science and Business Media LLC
Date: 17-08-2015
DOI: 10.1038/NCLIMATE2743
Publisher: Springer Science and Business Media LLC
Date: 27-06-2022
DOI: 10.1038/S41558-022-01398-2
Abstract: The Southern Ocean is a primary heat sink that buffers atmospheric warming and has warmed substantially, accounting for an outsized portion of global warming-induced excess heat in the climate system. However, its projected warming is highly uncertain and varies substantially across climate models. Here, using outputs from Coupled Model Intercomparison Project phase six models, we show that Southern Ocean warming during the twenty-first century is linked to the change in litude of the El Niño–Southern Oscillation (ENSO). Models simulating a larger increase in ENSO litude systematically produce a slower Southern Ocean warming conversely, a smaller increase in ENSO litude sees a stronger warming. The asymmetry in litude and teleconnection between El Niño and La Niña produce cumulative surface wind anomalies over the southern high latitudes, impacting Southern Ocean heat uptake. The magnitude of inter-model ENSO variations accounts for about 50% of the uncertainty in the projected Southern Ocean warming.
Publisher: Springer Science and Business Media LLC
Date: 20-02-2019
DOI: 10.1038/S41586-019-0994-9
Abstract: In this Review, the middle initial of author Kim M. Cobb was omitted. The original Review has been corrected online.
Publisher: American Geophysical Union (AGU)
Date: 03-08-2012
DOI: 10.1029/2012JD017775
Publisher: The Australian National University
Date: 2020
Publisher: American Geophysical Union (AGU)
Date: 15-06-2017
DOI: 10.1002/2016JD025827
Publisher: American Meteorological Society
Date: 05-2016
Publisher: Springer Science and Business Media LLC
Date: 07-02-2023
DOI: 10.1038/S43247-023-00683-Y
Abstract: The frequency and duration of marine heatwaves have been increasing with ocean warming due to climate change. In particular, the Northeast Pacific has experienced intense and extensive marine heatwaves since the late 1990s – characteristically called “the Blob”. Here, an investigation of satellite-derived and reanalysis data supported by idealized coupled model experiments show that Arctic warming plays an important role in the increase in Northeast Pacific marine heatwave days during boreal summers. Strong Arctic warming has acted to change the atmospheric circulation pattern over the Northeast Pacific and reduce the low-level cloud fraction from late spring to early summer. We show that the enhancement of solar radiative heat fluxes and reduced latent heat loss over a relatively large area has favored an increase in sea surface temperatures and marine heatwave days. An idealized model experiment performed here, designed to isolate the impact of Arctic warming, supports this hypothesis. The projected changes of Arctic climate on the occurrence of marine heatwaves should be considered in climate change adaptation and mitigation plans.
Publisher: American Geophysical Union (AGU)
Date: 19-06-2017
DOI: 10.1002/2017JD026458
Publisher: IOP Publishing
Date: 26-05-2023
Abstract: Understanding the impacts of volcanic eruptions on the atmospheric circulations and surface climate in the extratropics is important for inter-annual to decadal climate prediction. Previous studies on the Northern Hemisphere climate responses to volcanic eruptions have shown that volcanic eruptions likely induce northern Eurasian warming through the intensified Arctic polar vortex in the stratosphere and the positive phase of Arctic Oscillation/North Atlantic Oscillation in the troposphere. However, large uncertainties remain and the detailed physical processes have yet to be determined. The circulation responses in the Southern Hemisphere also remain controversial with large differences between the observed and model-simulated results. In this paper, we review previous studies on the extratropical circulation and surface climate responses to volcanic eruptions and update our understanding by examining the latest observational datasets and climate model simulations. We also propose new insights into the crucial role of the latitude of volcanic eruptions in determining the extratropical circulation changes, which has received less attention. Finally, we discuss uncertainty factors that may have important implications to the extratropical circulation responses to volcanic eruptions and suggest future directions to resolve those issues through systematic model experiments.
Publisher: SAGE Publications
Date: 26-12-2021
DOI: 10.1177/1037969X211052706
Abstract: In 2014, the decision in Richardson v Oracle significantly increased compensation awards for victims of discrimination and sexual harassment. Commentators referred to the decision as ‘ground-breaking’ and hypothesised that the floodgates would open for sexual harassment and discrimination cases. This article reviews these claims seven years on and asks: did the floodgates open? Case law review and analysis concludes that, while the ground did not break open for victims of discrimination and sexual harassment, it has certainly cracked – although unevenly. As such, more is required to create truly just outcomes for victims in discrimination law.
No related grants have been discovered for sang-wook yeh.