ORCID Profile
0000-0002-8416-5851
Current Organisation
Flinders University
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Publisher: Elsevier BV
Date: 1993
Publisher: The Oceanography Society
Date: 06-2007
Publisher: Springer Science and Business Media LLC
Date: 10-2004
Publisher: Elsevier BV
Date: 12-1977
Publisher: Elsevier BV
Date: 1980
Publisher: Elsevier BV
Date: 07-2004
Publisher: Elsevier BV
Date: 1979
Publisher: Elsevier BV
Date: 11-1999
Publisher: Elsevier BV
Date: 1981
Publisher: Springer Science and Business Media LLC
Date: 1969
DOI: 10.1007/BF02233895
Publisher: American Geophysical Union (AGU)
Date: 15-08-1998
DOI: 10.1029/98JC00889
Publisher: The Oceanography Society
Date: 12-2006
Publisher: Springer Science and Business Media LLC
Date: 07-1968
DOI: 10.1007/BF02307727
Publisher: The Oceanography Society
Date: 06-2005
Publisher: Elsevier BV
Date: 11-2002
Publisher: Elsevier BV
Date: 10-1975
Publisher: Springer Science and Business Media LLC
Date: 09-1967
DOI: 10.1007/BF02311192
Publisher: Elsevier BV
Date: 10-1989
Publisher: Informa UK Limited
Date: 03-2005
Publisher: Elsevier BV
Date: 1985
Publisher: Springer Science and Business Media LLC
Date: 1966
DOI: 10.1007/BF02321344
Publisher: Elsevier BV
Date: 04-2007
Publisher: The Oceanography Society
Date: 06-2004
Publisher: Elsevier BV
Date: 10-1984
Publisher: The Oceanography Society
Date: 06-2006
Publisher: The Oceanography Society
Date: 12-2004
Publisher: Elsevier BV
Date: 11-1990
Publisher: The Oceanography Society
Date: 06-2014
Publisher: Springer Science and Business Media LLC
Date: 09-1970
DOI: 10.1007/BF02311140
Publisher: Springer Science and Business Media LLC
Date: 11-2003
Publisher: Elsevier BV
Date: 1981
Publisher: Springer Science and Business Media LLC
Date: 07-02-2019
Publisher: The Oceanography Society
Date: 12-2003
Publisher: Elsevier BV
Date: 04-1994
Publisher: Elsevier BV
Date: 04-1993
Publisher: Wiley
Date: 19-01-2006
Publisher: Copernicus GmbH
Date: 28-09-2009
Abstract: Abstract. Barrier layers are defined as the layer between the pycnocline and the thermocline when the latter are different as a result of salinity stratification. We present a revisited 2-degree resolution global climatology of monthly mean oceanic Barrier Layer (BL) thickness first proposed by de Boyer Montégut et al. (2007). In addition to using an extended data set, we present a modified computation method that addresses the observed porosity of BLs. We name porosity the fact that barrier layers distribution can, in some areas, be very uneven regarding the space and time scales that are considered. This implies an intermittent alteration of air-sea exchanges by the BL. Therefore, it may have important consequences for the climatic impact of BLs. Differences between the two computation methods are small for robust BLs that are formed by large-scale processes. However, the former approach can significantly underestimate the thickness of short and/or localized barrier layers. This is especially the case for barrier layers formed by mesoscale mechanisms (under the intertropical convergence zone for ex le and along western boundary currents) and equatorward of the sea surface salinity subtropical maxima. Complete characterisation of regional BL dynamics therefore requires a description of the robustness of BL distribution to assess the overall impact of BLs on the process of heat exchange between the ocean interior and the atmosphere.
Publisher: Elsevier BV
Date: 1997
Publisher: American Geophysical Union (AGU)
Date: 09-2006
DOI: 10.1029/2006JC003592
Publisher: Springer Science and Business Media LLC
Date: 05-1967
DOI: 10.1007/BF02328949
Publisher: Springer Science and Business Media LLC
Date: 07-1969
DOI: 10.1007/BF02412269
Publisher: CSIRO Publishing
Date: 2006
DOI: 10.1071/MF05058
Abstract: The in situ dataset used in the current study consists of the Pacific Current Meter 3 (PCM3) array, which was a significant part of the Australian contribution to the World Ocean Circulation Experiment to study the variability of the East Australian Current (EAC), and was operational between September 1991 and March 1994. Area-preserving spectral analysis has been used to investigate the typical time scales observed by the current meters. As a general rule, the spectra from the top layers of the shallow (1, 2 and 3) and the deep (4, 5 and 6) moorings have a distinct peak in the temporal mesoscale band (periods between 70 and 170 days), with a general redistribution of energy towards the higher-frequencies near the ocean floor. This peak has been linked with eddy variability of the EAC system, which influences the fluctuations of the current main jet. The vertical modes of the velocity profile show that the strong surface-intensified baroclinic signal of the EAC dominated the variability at mooring 4 location. Further offshore the predominant configuration resembles more closely the barotropic mode. Ultimately, spatial empirical orthogonal functions (EOF) analysis point out the impact of the presence/absence of the EAC jet in the array.
Publisher: Elsevier BV
Date: 06-1987
Publisher: Elsevier BV
Date: 10-1987
Publisher: Elsevier BV
Date: 06-1992
Publisher: Elsevier BV
Date: 04-1998
Publisher: Elsevier BV
Date: 09-1994
Publisher: Elsevier BV
Date: 1981
Publisher: Elsevier BV
Date: 10-1997
Publisher: American Geophysical Union (AGU)
Date: 03-2006
DOI: 10.1029/2005GL025216
Publisher: Elsevier BV
Date: 1972
Location: United Kingdom of Great Britain and Northern Ireland
No related grants have been discovered for Matthias Tomczak.