Anomalous peak in Antarctic sea-ice area, winter 1998, coincident with ENSO
The results of an updated satellite analysis of hemispheric and regional Antarctic sea-ice cover are presented based on October 1987-September I999 Special Sensor Microwave/Imager (SSM/I) data. These show an ongoing slight but significant hemispheric increase of 3.7(±0.3) in extent and 6.6(±1.5) i...
Published in: | Geophysical Research Letters |
---|---|
Main Author: | |
Format: | Article in Journal/Newspaper |
Language: | English |
Published: |
American Geophysical Union
2001
|
Subjects: | |
Online Access: | https://eprints.lincoln.ac.uk/id/eprint/26074/ https://eprints.lincoln.ac.uk/id/eprint/26074/1/26074%20Hanna-2001-Geophysical_Research_Letters.pdf https://doi.org/10.1029/2000GL012368 |
id |
ftulincoln:oai:eprints.lincoln.ac.uk:26074 |
---|---|
record_format |
openpolar |
spelling |
ftulincoln:oai:eprints.lincoln.ac.uk:26074 2023-05-15T13:44:15+02:00 Anomalous peak in Antarctic sea-ice area, winter 1998, coincident with ENSO Hanna, Edward 2001-04-15 application/pdf https://eprints.lincoln.ac.uk/id/eprint/26074/ https://eprints.lincoln.ac.uk/id/eprint/26074/1/26074%20Hanna-2001-Geophysical_Research_Letters.pdf https://doi.org/10.1029/2000GL012368 en eng American Geophysical Union https://eprints.lincoln.ac.uk/id/eprint/26074/1/26074%20Hanna-2001-Geophysical_Research_Letters.pdf Hanna, Edward (2001) Anomalous peak in Antarctic sea-ice area, winter 1998, coincident with ENSO. Geophysical Research Letters, 28 (8). pp. 1595-1598. ISSN 0094-8276 doi:10.1029/2000GL012368 F890 Geographical and Environmental Sciences not elsewhere classified Article PeerReviewed 2001 ftulincoln https://doi.org/10.1029/2000GL012368 2022-03-02T20:07:24Z The results of an updated satellite analysis of hemispheric and regional Antarctic sea-ice cover are presented based on October 1987-September I999 Special Sensor Microwave/Imager (SSM/I) data. These show an ongoing slight but significant hemispheric increase of 3.7(±0.3) in extent and 6.6(±1.5) in area. In the two principal sectors, Weddell Sea ice extent (area) decreased by 3.4(±1.0) (3.9(±4.6)) and Ross Sea ice extent (area) increased by 10.9(±1.0) (18.3(±4.6)). Hemispheric, Ross Sea and Western Pacific Ocean ice peaks in September 1998 were anomalously high, and may have been related to atmospheric and oceanic anomalies in the Pacific Ocean and beyond associated with that year's exceptionally strong ENSO. Preliminary comparison of Antarctic sea-ice-concentration data with European Centre for Medium-Range Weather Forecasts (ECMWF) operational analyses fields suggests that the unusually extensive sea ice in winter 1998 was concomitant with an equatorward shift of the circumpolar westerly surface winds over the southern Pacific Ocean. Article in Journal/Newspaper Antarc* Antarctic Ross Sea Sea ice Weddell Sea University of Lincoln: Lincoln Repository Antarctic Weddell Sea Ross Sea Pacific Weddell Geophysical Research Letters 28 8 1595 1598 |
institution |
Open Polar |
collection |
University of Lincoln: Lincoln Repository |
op_collection_id |
ftulincoln |
language |
English |
topic |
F890 Geographical and Environmental Sciences not elsewhere classified |
spellingShingle |
F890 Geographical and Environmental Sciences not elsewhere classified Hanna, Edward Anomalous peak in Antarctic sea-ice area, winter 1998, coincident with ENSO |
topic_facet |
F890 Geographical and Environmental Sciences not elsewhere classified |
description |
The results of an updated satellite analysis of hemispheric and regional Antarctic sea-ice cover are presented based on October 1987-September I999 Special Sensor Microwave/Imager (SSM/I) data. These show an ongoing slight but significant hemispheric increase of 3.7(±0.3) in extent and 6.6(±1.5) in area. In the two principal sectors, Weddell Sea ice extent (area) decreased by 3.4(±1.0) (3.9(±4.6)) and Ross Sea ice extent (area) increased by 10.9(±1.0) (18.3(±4.6)). Hemispheric, Ross Sea and Western Pacific Ocean ice peaks in September 1998 were anomalously high, and may have been related to atmospheric and oceanic anomalies in the Pacific Ocean and beyond associated with that year's exceptionally strong ENSO. Preliminary comparison of Antarctic sea-ice-concentration data with European Centre for Medium-Range Weather Forecasts (ECMWF) operational analyses fields suggests that the unusually extensive sea ice in winter 1998 was concomitant with an equatorward shift of the circumpolar westerly surface winds over the southern Pacific Ocean. |
format |
Article in Journal/Newspaper |
author |
Hanna, Edward |
author_facet |
Hanna, Edward |
author_sort |
Hanna, Edward |
title |
Anomalous peak in Antarctic sea-ice area, winter 1998, coincident with ENSO |
title_short |
Anomalous peak in Antarctic sea-ice area, winter 1998, coincident with ENSO |
title_full |
Anomalous peak in Antarctic sea-ice area, winter 1998, coincident with ENSO |
title_fullStr |
Anomalous peak in Antarctic sea-ice area, winter 1998, coincident with ENSO |
title_full_unstemmed |
Anomalous peak in Antarctic sea-ice area, winter 1998, coincident with ENSO |
title_sort |
anomalous peak in antarctic sea-ice area, winter 1998, coincident with enso |
publisher |
American Geophysical Union |
publishDate |
2001 |
url |
https://eprints.lincoln.ac.uk/id/eprint/26074/ https://eprints.lincoln.ac.uk/id/eprint/26074/1/26074%20Hanna-2001-Geophysical_Research_Letters.pdf https://doi.org/10.1029/2000GL012368 |
geographic |
Antarctic Weddell Sea Ross Sea Pacific Weddell |
geographic_facet |
Antarctic Weddell Sea Ross Sea Pacific Weddell |
genre |
Antarc* Antarctic Ross Sea Sea ice Weddell Sea |
genre_facet |
Antarc* Antarctic Ross Sea Sea ice Weddell Sea |
op_relation |
https://eprints.lincoln.ac.uk/id/eprint/26074/1/26074%20Hanna-2001-Geophysical_Research_Letters.pdf Hanna, Edward (2001) Anomalous peak in Antarctic sea-ice area, winter 1998, coincident with ENSO. Geophysical Research Letters, 28 (8). pp. 1595-1598. ISSN 0094-8276 doi:10.1029/2000GL012368 |
op_doi |
https://doi.org/10.1029/2000GL012368 |
container_title |
Geophysical Research Letters |
container_volume |
28 |
container_issue |
8 |
container_start_page |
1595 |
op_container_end_page |
1598 |
_version_ |
1766199497794256896 |