The Arctic and Antarctic Sea-Ice Area Index Records versus Measured and Modeled Temperature Data
Here we study the Arctic and Antarctic sea-ice area records provided by the National Snow and Ice Data Center (NSIDC). These records reveal an opposite climatic behavior: since 1978 the Arctic sea-ice area index decreased, that is, the region has warmed, while the Antarctic sea-ice area index increa...
Published in: | Advances in Meteorology |
---|---|
Main Authors: | , |
Format: | Article in Journal/Newspaper |
Language: | English |
Published: |
2015
|
Subjects: | |
Online Access: | https://www.openaccessrepository.it/record/48764 https://doi.org/10.1155/2015/481834 |
id |
ftopenaccessrep:oai:zenodo.org:48764 |
---|---|
record_format |
openpolar |
spelling |
ftopenaccessrep:oai:zenodo.org:48764 2023-05-15T13:35:06+02:00 The Arctic and Antarctic Sea-Ice Area Index Records versus Measured and Modeled Temperature Data Scafetta, Nicola Mazzarella, Adriano 2015-01-01 https://www.openaccessrepository.it/record/48764 https://doi.org/10.1155/2015/481834 eng eng url:https://www.openaccessrepository.it/communities/itmirror https://www.openaccessrepository.it/record/48764 doi:10.1155/2015/481834 info:eu-repo/semantics/openAccess http://www.opendefinition.org/licenses/cc-by CC-BY info:eu-repo/semantics/article publication-article 2015 ftopenaccessrep https://doi.org/10.1155/2015/481834 2022-11-23T06:38:57Z Here we study the Arctic and Antarctic sea-ice area records provided by the National Snow and Ice Data Center (NSIDC). These records reveal an opposite climatic behavior: since 1978 the Arctic sea-ice area index decreased, that is, the region has warmed, while the Antarctic sea-ice area index increased, that is, the region has cooled. During the last 7 years the Arctic sea-ice area has stabilized while the Antarctic sea-ice area has increased at a rate significantly higher than during the previous decades; that is, the sea-ice area of both regions has experienced a positive acceleration. This result is quite robust because it is confirmed by alternative temperature climate indices of the same regions. We also found that a significant 4-5-year natural oscillation characterizes the climate of these sea-ice polar areas. On the contrary, we found that the CMIP5 general circulation models have predicted significant warming in both polar sea regions and failed to reproduce the strong 4-5-year oscillation. Because the CMIP5 GCM simulations are inconsistent with the observations, we suggest that important natural mechanisms of climate change are missing in the models. Article in Journal/Newspaper Antarc* Antarctic Arctic Climate change National Snow and Ice Data Center Sea ice Istituto Nazionale di Fisica Nucleare (INFN): Open Access Repository Arctic Antarctic The Antarctic Advances in Meteorology 2015 1 8 |
institution |
Open Polar |
collection |
Istituto Nazionale di Fisica Nucleare (INFN): Open Access Repository |
op_collection_id |
ftopenaccessrep |
language |
English |
description |
Here we study the Arctic and Antarctic sea-ice area records provided by the National Snow and Ice Data Center (NSIDC). These records reveal an opposite climatic behavior: since 1978 the Arctic sea-ice area index decreased, that is, the region has warmed, while the Antarctic sea-ice area index increased, that is, the region has cooled. During the last 7 years the Arctic sea-ice area has stabilized while the Antarctic sea-ice area has increased at a rate significantly higher than during the previous decades; that is, the sea-ice area of both regions has experienced a positive acceleration. This result is quite robust because it is confirmed by alternative temperature climate indices of the same regions. We also found that a significant 4-5-year natural oscillation characterizes the climate of these sea-ice polar areas. On the contrary, we found that the CMIP5 general circulation models have predicted significant warming in both polar sea regions and failed to reproduce the strong 4-5-year oscillation. Because the CMIP5 GCM simulations are inconsistent with the observations, we suggest that important natural mechanisms of climate change are missing in the models. |
format |
Article in Journal/Newspaper |
author |
Scafetta, Nicola Mazzarella, Adriano |
spellingShingle |
Scafetta, Nicola Mazzarella, Adriano The Arctic and Antarctic Sea-Ice Area Index Records versus Measured and Modeled Temperature Data |
author_facet |
Scafetta, Nicola Mazzarella, Adriano |
author_sort |
Scafetta, Nicola |
title |
The Arctic and Antarctic Sea-Ice Area Index Records versus Measured and Modeled Temperature Data |
title_short |
The Arctic and Antarctic Sea-Ice Area Index Records versus Measured and Modeled Temperature Data |
title_full |
The Arctic and Antarctic Sea-Ice Area Index Records versus Measured and Modeled Temperature Data |
title_fullStr |
The Arctic and Antarctic Sea-Ice Area Index Records versus Measured and Modeled Temperature Data |
title_full_unstemmed |
The Arctic and Antarctic Sea-Ice Area Index Records versus Measured and Modeled Temperature Data |
title_sort |
arctic and antarctic sea-ice area index records versus measured and modeled temperature data |
publishDate |
2015 |
url |
https://www.openaccessrepository.it/record/48764 https://doi.org/10.1155/2015/481834 |
geographic |
Arctic Antarctic The Antarctic |
geographic_facet |
Arctic Antarctic The Antarctic |
genre |
Antarc* Antarctic Arctic Climate change National Snow and Ice Data Center Sea ice |
genre_facet |
Antarc* Antarctic Arctic Climate change National Snow and Ice Data Center Sea ice |
op_relation |
url:https://www.openaccessrepository.it/communities/itmirror https://www.openaccessrepository.it/record/48764 doi:10.1155/2015/481834 |
op_rights |
info:eu-repo/semantics/openAccess http://www.opendefinition.org/licenses/cc-by |
op_rightsnorm |
CC-BY |
op_doi |
https://doi.org/10.1155/2015/481834 |
container_title |
Advances in Meteorology |
container_volume |
2015 |
container_start_page |
1 |
op_container_end_page |
8 |
_version_ |
1766061028189143040 |