Trends in Antarctic Peninsula surface melting conditions from observations and regional climate modeling
Multidecadal meteorological station records and microwave backscatter time-series from the SeaWinds scatterometer onboard QuikSCAT (QSCAT) were used to calculate temporal and spatial trends in surface melting conditions on the Antarctic Peninsula (AP). Four of six long-term station records showed st...
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ftdatacite:10.7916/d8f47p28 2023-05-15T13:40:56+02:00 Trends in Antarctic Peninsula surface melting conditions from observations and regional climate modeling Barrand, N. E. Vaughan, D. G. Steiner, N. Tedesco, Marco Kuipers Munneke, P. Van Den Broeke, M. R. Hosking, J. S. 2013 https://dx.doi.org/10.7916/d8f47p28 https://academiccommons.columbia.edu/doi/10.7916/D8F47P28 unknown Columbia University https://dx.doi.org/10.1029/2012jf002559 Meltwater Climatic geomorphology Earth temperature Climatic changes Geology FOS Earth and related environmental sciences Geomorphology Meteorology Text Articles article-journal ScholarlyArticle 2013 ftdatacite https://doi.org/10.7916/d8f47p28 https://doi.org/10.1029/2012jf002559 2021-11-05T12:55:41Z Multidecadal meteorological station records and microwave backscatter time-series from the SeaWinds scatterometer onboard QuikSCAT (QSCAT) were used to calculate temporal and spatial trends in surface melting conditions on the Antarctic Peninsula (AP). Four of six long-term station records showed strongly positive and statistically significant trends in duration of melting conditions, including a 95% increase in the average annual positive degree day sum (PDD) at Faraday/Vernadsky, since 1948. A validated, threshold-based melt detection method was employed to derive detailed melt season onset, extent, and duration climatologies on the AP from enhanced resolution QSCAT data during 1999–2009. Austral summer melt on the AP was linked to regional- and synoptic-scale atmospheric variability by respectively correlating melt season onset and extent with November near-surface air temperatures and the October–January averaged index of the Southern Hemisphere Annular Mode (SAM). The spatial pattern, magnitude, and interannual variability of AP melt from observations was closely reproduced by simulations of the regional model RACMO2. Local discrepancies between observations and model simulations were likely a result of the QSCAT response to, and RACMO2 treatment of, ponded surface water, and the relatively crude representation of coastal climate in the 27 km RACMO2 grid. Text Antarc* Antarctic Antarctic Peninsula DataCite Metadata Store (German National Library of Science and Technology) Antarctic The Antarctic Antarctic Peninsula Austral Faraday ENVELOPE(-64.256,-64.256,-65.246,-65.246) |
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collection |
DataCite Metadata Store (German National Library of Science and Technology) |
op_collection_id |
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unknown |
topic |
Meltwater Climatic geomorphology Earth temperature Climatic changes Geology FOS Earth and related environmental sciences Geomorphology Meteorology |
spellingShingle |
Meltwater Climatic geomorphology Earth temperature Climatic changes Geology FOS Earth and related environmental sciences Geomorphology Meteorology Barrand, N. E. Vaughan, D. G. Steiner, N. Tedesco, Marco Kuipers Munneke, P. Van Den Broeke, M. R. Hosking, J. S. Trends in Antarctic Peninsula surface melting conditions from observations and regional climate modeling |
topic_facet |
Meltwater Climatic geomorphology Earth temperature Climatic changes Geology FOS Earth and related environmental sciences Geomorphology Meteorology |
description |
Multidecadal meteorological station records and microwave backscatter time-series from the SeaWinds scatterometer onboard QuikSCAT (QSCAT) were used to calculate temporal and spatial trends in surface melting conditions on the Antarctic Peninsula (AP). Four of six long-term station records showed strongly positive and statistically significant trends in duration of melting conditions, including a 95% increase in the average annual positive degree day sum (PDD) at Faraday/Vernadsky, since 1948. A validated, threshold-based melt detection method was employed to derive detailed melt season onset, extent, and duration climatologies on the AP from enhanced resolution QSCAT data during 1999–2009. Austral summer melt on the AP was linked to regional- and synoptic-scale atmospheric variability by respectively correlating melt season onset and extent with November near-surface air temperatures and the October–January averaged index of the Southern Hemisphere Annular Mode (SAM). The spatial pattern, magnitude, and interannual variability of AP melt from observations was closely reproduced by simulations of the regional model RACMO2. Local discrepancies between observations and model simulations were likely a result of the QSCAT response to, and RACMO2 treatment of, ponded surface water, and the relatively crude representation of coastal climate in the 27 km RACMO2 grid. |
format |
Text |
author |
Barrand, N. E. Vaughan, D. G. Steiner, N. Tedesco, Marco Kuipers Munneke, P. Van Den Broeke, M. R. Hosking, J. S. |
author_facet |
Barrand, N. E. Vaughan, D. G. Steiner, N. Tedesco, Marco Kuipers Munneke, P. Van Den Broeke, M. R. Hosking, J. S. |
author_sort |
Barrand, N. E. |
title |
Trends in Antarctic Peninsula surface melting conditions from observations and regional climate modeling |
title_short |
Trends in Antarctic Peninsula surface melting conditions from observations and regional climate modeling |
title_full |
Trends in Antarctic Peninsula surface melting conditions from observations and regional climate modeling |
title_fullStr |
Trends in Antarctic Peninsula surface melting conditions from observations and regional climate modeling |
title_full_unstemmed |
Trends in Antarctic Peninsula surface melting conditions from observations and regional climate modeling |
title_sort |
trends in antarctic peninsula surface melting conditions from observations and regional climate modeling |
publisher |
Columbia University |
publishDate |
2013 |
url |
https://dx.doi.org/10.7916/d8f47p28 https://academiccommons.columbia.edu/doi/10.7916/D8F47P28 |
long_lat |
ENVELOPE(-64.256,-64.256,-65.246,-65.246) |
geographic |
Antarctic The Antarctic Antarctic Peninsula Austral Faraday |
geographic_facet |
Antarctic The Antarctic Antarctic Peninsula Austral Faraday |
genre |
Antarc* Antarctic Antarctic Peninsula |
genre_facet |
Antarc* Antarctic Antarctic Peninsula |
op_relation |
https://dx.doi.org/10.1029/2012jf002559 |
op_doi |
https://doi.org/10.7916/d8f47p28 https://doi.org/10.1029/2012jf002559 |
_version_ |
1766143534198423552 |