2000 American Meteorological Society NOTES AND CORRESPONDENCE On the Interpretation of Antarctic Temperature Trends
Determining the rate of atmospheric warming in Antarctica is hampered by the brevity of the temperature records (50 years), which still contain signals of decadal circulation variability in the Southern Hemisphere. In this note it is demonstrated that Antarctic warming trends have been regionally mo...
Main Authors: | , |
---|---|
Other Authors: | |
Format: | Text |
Language: | English |
Published: |
1999
|
Subjects: | |
Online Access: | http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.721.764 http://www.staff.science.uu.nl/%7Ebroek112/home.php_files/Publications_MvdB/2000_vdBroeke_JClim.pdf |
id |
ftciteseerx:oai:CiteSeerX.psu:10.1.1.721.764 |
---|---|
record_format |
openpolar |
spelling |
ftciteseerx:oai:CiteSeerX.psu:10.1.1.721.764 2023-05-15T13:52:14+02:00 2000 American Meteorological Society NOTES AND CORRESPONDENCE On the Interpretation of Antarctic Temperature Trends Michiel R. Van Den Broeke The Pennsylvania State University CiteSeerX Archives 1999 application/pdf http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.721.764 http://www.staff.science.uu.nl/%7Ebroek112/home.php_files/Publications_MvdB/2000_vdBroeke_JClim.pdf en eng http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.721.764 http://www.staff.science.uu.nl/%7Ebroek112/home.php_files/Publications_MvdB/2000_vdBroeke_JClim.pdf Metadata may be used without restrictions as long as the oai identifier remains attached to it. http://www.staff.science.uu.nl/%7Ebroek112/home.php_files/Publications_MvdB/2000_vdBroeke_JClim.pdf text 1999 ftciteseerx 2016-07-03T00:01:24Z Determining the rate of atmospheric warming in Antarctica is hampered by the brevity of the temperature records (50 years), which still contain signals of decadal circulation variability in the Southern Hemisphere. In this note it is demonstrated that Antarctic warming trends have been regionally modified by slow circulation changes and associated changes in sea-ice cover: decadal weakening of the semiannual oscillation since the mid-1970s has limited the meridional heat exchange between Antarctica and its surroundings, so that warming trends have leveled out since then. In contrast, northerly circulation anomalies in combination with decreased sea-ice cover have regionally enhanced low-level warming, for instance in the region of the Antarctic Peninsula. Based on this knowledge, the authors propose a background Antarctic warming trend of 1.30 0.38C (cen-tury)1, representative of the period 1957–95. 1. Text Antarc* Antarctic Antarctic Peninsula Antarctica Sea ice Unknown Antarctic Antarctic Peninsula The Antarctic |
institution |
Open Polar |
collection |
Unknown |
op_collection_id |
ftciteseerx |
language |
English |
description |
Determining the rate of atmospheric warming in Antarctica is hampered by the brevity of the temperature records (50 years), which still contain signals of decadal circulation variability in the Southern Hemisphere. In this note it is demonstrated that Antarctic warming trends have been regionally modified by slow circulation changes and associated changes in sea-ice cover: decadal weakening of the semiannual oscillation since the mid-1970s has limited the meridional heat exchange between Antarctica and its surroundings, so that warming trends have leveled out since then. In contrast, northerly circulation anomalies in combination with decreased sea-ice cover have regionally enhanced low-level warming, for instance in the region of the Antarctic Peninsula. Based on this knowledge, the authors propose a background Antarctic warming trend of 1.30 0.38C (cen-tury)1, representative of the period 1957–95. 1. |
author2 |
The Pennsylvania State University CiteSeerX Archives |
format |
Text |
author |
Michiel R. Van Den Broeke |
spellingShingle |
Michiel R. Van Den Broeke 2000 American Meteorological Society NOTES AND CORRESPONDENCE On the Interpretation of Antarctic Temperature Trends |
author_facet |
Michiel R. Van Den Broeke |
author_sort |
Michiel R. Van |
title |
2000 American Meteorological Society NOTES AND CORRESPONDENCE On the Interpretation of Antarctic Temperature Trends |
title_short |
2000 American Meteorological Society NOTES AND CORRESPONDENCE On the Interpretation of Antarctic Temperature Trends |
title_full |
2000 American Meteorological Society NOTES AND CORRESPONDENCE On the Interpretation of Antarctic Temperature Trends |
title_fullStr |
2000 American Meteorological Society NOTES AND CORRESPONDENCE On the Interpretation of Antarctic Temperature Trends |
title_full_unstemmed |
2000 American Meteorological Society NOTES AND CORRESPONDENCE On the Interpretation of Antarctic Temperature Trends |
title_sort |
2000 american meteorological society notes and correspondence on the interpretation of antarctic temperature trends |
publishDate |
1999 |
url |
http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.721.764 http://www.staff.science.uu.nl/%7Ebroek112/home.php_files/Publications_MvdB/2000_vdBroeke_JClim.pdf |
geographic |
Antarctic Antarctic Peninsula The Antarctic |
geographic_facet |
Antarctic Antarctic Peninsula The Antarctic |
genre |
Antarc* Antarctic Antarctic Peninsula Antarctica Sea ice |
genre_facet |
Antarc* Antarctic Antarctic Peninsula Antarctica Sea ice |
op_source |
http://www.staff.science.uu.nl/%7Ebroek112/home.php_files/Publications_MvdB/2000_vdBroeke_JClim.pdf |
op_relation |
http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.721.764 http://www.staff.science.uu.nl/%7Ebroek112/home.php_files/Publications_MvdB/2000_vdBroeke_JClim.pdf |
op_rights |
Metadata may be used without restrictions as long as the oai identifier remains attached to it. |
_version_ |
1766256503258349568 |