THE POLAR ICE COVER - HOW IT IS CHANGING
Global warming of about 0.5 to 1 ºC during the last century has been observed from meteorological stations around the world and postulated to be caused in part by increasing anthropogenic greenhouse gases in the atmosphere. The best regions for detecting the impact of such changes are the polar regi...
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ftdoajarticles:oai:doaj.org/article:3a22ae3be3354770b4c2fd92f5273b74 2023-05-15T13:11:39+02:00 THE POLAR ICE COVER - HOW IT IS CHANGING Josefino C Comiso 2004-01-01T00:00:00Z https://doaj.org/article/3a22ae3be3354770b4c2fd92f5273b74 EN ES eng spa Universidad de Concepción http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-65382004000200023 https://doaj.org/toc/0717-652X https://doaj.org/toc/0717-6538 0717-652X 0717-6538 https://doaj.org/article/3a22ae3be3354770b4c2fd92f5273b74 Gayana, Vol 68, Iss 2, Pp 123-129 (2004) Oceanography GC1-1581 Zoology QL1-991 article 2004 ftdoajarticles 2022-12-31T11:22:40Z Global warming of about 0.5 to 1 ºC during the last century has been observed from meteorological stations around the world and postulated to be caused in part by increasing anthropogenic greenhouse gases in the atmosphere. The best regions for detecting the impact of such changes are the polar regions where the signals are supposed to be amplified because of ice-albedo feedbacks. Satellite data reveal that the most remarkable change in the polar regions is in the rapid decline of 9% per decade in the Arctic perennial ice cover which has been observed to be anomalously low in 2002, 2003 and 2004. The sea ice cover in the Bellingshaussen Sea has been observed to be retreating as well, at the rate of 6%/decade. The changes are more modest in the entire Northern Hemisphere with the ice declining at around 2 to 3% per decade only while that in the Southern Hemisphere has been basically constant during the last 25 years Article in Journal/Newspaper albedo Arctic Global warming Sea ice Directory of Open Access Journals: DOAJ Articles Arctic |
institution |
Open Polar |
collection |
Directory of Open Access Journals: DOAJ Articles |
op_collection_id |
ftdoajarticles |
language |
English Spanish |
topic |
Oceanography GC1-1581 Zoology QL1-991 |
spellingShingle |
Oceanography GC1-1581 Zoology QL1-991 Josefino C Comiso THE POLAR ICE COVER - HOW IT IS CHANGING |
topic_facet |
Oceanography GC1-1581 Zoology QL1-991 |
description |
Global warming of about 0.5 to 1 ºC during the last century has been observed from meteorological stations around the world and postulated to be caused in part by increasing anthropogenic greenhouse gases in the atmosphere. The best regions for detecting the impact of such changes are the polar regions where the signals are supposed to be amplified because of ice-albedo feedbacks. Satellite data reveal that the most remarkable change in the polar regions is in the rapid decline of 9% per decade in the Arctic perennial ice cover which has been observed to be anomalously low in 2002, 2003 and 2004. The sea ice cover in the Bellingshaussen Sea has been observed to be retreating as well, at the rate of 6%/decade. The changes are more modest in the entire Northern Hemisphere with the ice declining at around 2 to 3% per decade only while that in the Southern Hemisphere has been basically constant during the last 25 years |
format |
Article in Journal/Newspaper |
author |
Josefino C Comiso |
author_facet |
Josefino C Comiso |
author_sort |
Josefino C Comiso |
title |
THE POLAR ICE COVER - HOW IT IS CHANGING |
title_short |
THE POLAR ICE COVER - HOW IT IS CHANGING |
title_full |
THE POLAR ICE COVER - HOW IT IS CHANGING |
title_fullStr |
THE POLAR ICE COVER - HOW IT IS CHANGING |
title_full_unstemmed |
THE POLAR ICE COVER - HOW IT IS CHANGING |
title_sort |
polar ice cover - how it is changing |
publisher |
Universidad de Concepción |
publishDate |
2004 |
url |
https://doaj.org/article/3a22ae3be3354770b4c2fd92f5273b74 |
geographic |
Arctic |
geographic_facet |
Arctic |
genre |
albedo Arctic Global warming Sea ice |
genre_facet |
albedo Arctic Global warming Sea ice |
op_source |
Gayana, Vol 68, Iss 2, Pp 123-129 (2004) |
op_relation |
http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-65382004000200023 https://doaj.org/toc/0717-652X https://doaj.org/toc/0717-6538 0717-652X 0717-6538 https://doaj.org/article/3a22ae3be3354770b4c2fd92f5273b74 |
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1766248317793075200 |