An interdisciplinary approach to climate and coastal systems changes on King George Island
Local climate warming recorded at maritime Antarctica since 50 years dramatically affects small ice caps such as on King George Island (KGI) at the Northern tip of the Antarctic Peninsula. DGPS measurements revealed surface lowering in elevations up to 270 m above ellipsoid with a maximum of 14 m ov...
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ftawi:oai:epic.awi.de:23715 2024-09-15T17:44:54+00:00 An interdisciplinary approach to climate and coastal systems changes on King George Island Abele, Doris Braun, M. Falk, U. Kuhn, Gerhard Hass, H. C. Dominguez, M. Monien, P. Brumsack, H.-J. Wasilowska, H. Tatur, A. Schloss, I. Hernando, M. Quartino, M. L. Torre, Luciana Sahade, R. Philipp, Eva 2010 https://epic.awi.de/id/eprint/23715/ https://hdl.handle.net/10013/epic.36632 unknown Abele, D. orcid:0000-0002-5766-5017 , Braun, M. , Falk, U. , Kuhn, G. orcid:0000-0001-6069-7485 , Hass, H. C. , Dominguez, M. , Monien, P. , Brumsack, H. J. , Wasilowska, H. , Tatur, A. , Schloss, I. , Hernando, M. , Quartino, M. L. , Torre, L. , Sahade, R. and Philipp, E. (2010) An interdisciplinary approach to climate and coastal systems changes on King George Island , American Geophysical Union Fall Meeting 2010, San Francisco, USA.December . hdl:10013/epic.36632 EPIC3American Geophysical Union Fall Meeting 2010, San Francisco, USA.December, 13, 2010 p. Conference notRev 2010 ftawi 2024-06-24T04:02:42Z Local climate warming recorded at maritime Antarctica since 50 years dramatically affects small ice caps such as on King George Island (KGI) at the Northern tip of the Antarctic Peninsula. DGPS measurements revealed surface lowering in elevations up to 270 m above ellipsoid with a maximum of 14 m over 11 years. Glacial area loss at KGI amounted to 20 sqkm between 2000 and 2008. Newly ice free areas opened and succession of diatoms, ostracods and foraminifers can be read in sediments cores. Input of glacial melt water and mineral suspension into coastal areas reach highest monthly yields in January. Timing of the annual discharge wave and volume have increased during the past 5 years. Coastal biota are severely affected by melt water, shading, sedimentation and increased intensity of iceberg scour. 20 years of coastal monitoring indicate that sediment discharge in summer combines with slowly rising water temperatures and freshening in coastal surface waters fronting melting glaciers. Shifts in pelagic communities from larger diatoms to smaller phytoflagellates in the highly stratified summer scenario correlate with large quantities of beaching dead krill. Shifts in the lower distribution limit of macroalgae have cascading effects on grazers and change community structure. Elevated rates of sediment deposition on the seafloor distinctly affect different groups of benthic macrofauna and shifts in benthic community and population age structure can be well explained with species specific sensitivity to sediment and iceberg impact. Most Antarctic macrofauna are highly vulnerable to change, but in some cases we observe unexpected adaptability. Conference Object Antarc* Antarctic Antarctic Peninsula Antarctica Iceberg* King George Island Alfred Wegener Institute for Polar- and Marine Research (AWI): ePIC (electronic Publication Information Center) |
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Alfred Wegener Institute for Polar- and Marine Research (AWI): ePIC (electronic Publication Information Center) |
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ftawi |
language |
unknown |
description |
Local climate warming recorded at maritime Antarctica since 50 years dramatically affects small ice caps such as on King George Island (KGI) at the Northern tip of the Antarctic Peninsula. DGPS measurements revealed surface lowering in elevations up to 270 m above ellipsoid with a maximum of 14 m over 11 years. Glacial area loss at KGI amounted to 20 sqkm between 2000 and 2008. Newly ice free areas opened and succession of diatoms, ostracods and foraminifers can be read in sediments cores. Input of glacial melt water and mineral suspension into coastal areas reach highest monthly yields in January. Timing of the annual discharge wave and volume have increased during the past 5 years. Coastal biota are severely affected by melt water, shading, sedimentation and increased intensity of iceberg scour. 20 years of coastal monitoring indicate that sediment discharge in summer combines with slowly rising water temperatures and freshening in coastal surface waters fronting melting glaciers. Shifts in pelagic communities from larger diatoms to smaller phytoflagellates in the highly stratified summer scenario correlate with large quantities of beaching dead krill. Shifts in the lower distribution limit of macroalgae have cascading effects on grazers and change community structure. Elevated rates of sediment deposition on the seafloor distinctly affect different groups of benthic macrofauna and shifts in benthic community and population age structure can be well explained with species specific sensitivity to sediment and iceberg impact. Most Antarctic macrofauna are highly vulnerable to change, but in some cases we observe unexpected adaptability. |
format |
Conference Object |
author |
Abele, Doris Braun, M. Falk, U. Kuhn, Gerhard Hass, H. C. Dominguez, M. Monien, P. Brumsack, H.-J. Wasilowska, H. Tatur, A. Schloss, I. Hernando, M. Quartino, M. L. Torre, Luciana Sahade, R. Philipp, Eva |
spellingShingle |
Abele, Doris Braun, M. Falk, U. Kuhn, Gerhard Hass, H. C. Dominguez, M. Monien, P. Brumsack, H.-J. Wasilowska, H. Tatur, A. Schloss, I. Hernando, M. Quartino, M. L. Torre, Luciana Sahade, R. Philipp, Eva An interdisciplinary approach to climate and coastal systems changes on King George Island |
author_facet |
Abele, Doris Braun, M. Falk, U. Kuhn, Gerhard Hass, H. C. Dominguez, M. Monien, P. Brumsack, H.-J. Wasilowska, H. Tatur, A. Schloss, I. Hernando, M. Quartino, M. L. Torre, Luciana Sahade, R. Philipp, Eva |
author_sort |
Abele, Doris |
title |
An interdisciplinary approach to climate and coastal systems changes on King George Island |
title_short |
An interdisciplinary approach to climate and coastal systems changes on King George Island |
title_full |
An interdisciplinary approach to climate and coastal systems changes on King George Island |
title_fullStr |
An interdisciplinary approach to climate and coastal systems changes on King George Island |
title_full_unstemmed |
An interdisciplinary approach to climate and coastal systems changes on King George Island |
title_sort |
interdisciplinary approach to climate and coastal systems changes on king george island |
publishDate |
2010 |
url |
https://epic.awi.de/id/eprint/23715/ https://hdl.handle.net/10013/epic.36632 |
genre |
Antarc* Antarctic Antarctic Peninsula Antarctica Iceberg* King George Island |
genre_facet |
Antarc* Antarctic Antarctic Peninsula Antarctica Iceberg* King George Island |
op_source |
EPIC3American Geophysical Union Fall Meeting 2010, San Francisco, USA.December, 13, 2010 p. |
op_relation |
Abele, D. orcid:0000-0002-5766-5017 , Braun, M. , Falk, U. , Kuhn, G. orcid:0000-0001-6069-7485 , Hass, H. C. , Dominguez, M. , Monien, P. , Brumsack, H. J. , Wasilowska, H. , Tatur, A. , Schloss, I. , Hernando, M. , Quartino, M. L. , Torre, L. , Sahade, R. and Philipp, E. (2010) An interdisciplinary approach to climate and coastal systems changes on King George Island , American Geophysical Union Fall Meeting 2010, San Francisco, USA.December . hdl:10013/epic.36632 |
_version_ |
1810492588385370112 |