Southern Ocean Sea Ice Extent and Area
This indicator is no longer maintained, and is considered OBSOLETE. INDICATOR DEFINITION The northern limit of the pack ice as defined by the 15% concentration of sea ice determined by the SSM/I instrument or its replacement. TYPE OF INDICATOR There are three types of indicators used in this report:...
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Online Access: | https://researchdata.ands.org.au/southern-ocean-sea-extent-area/701773 https://doi.org/10.26179/5d37f84cbf569 https://data.aad.gov.au/metadata/records/SOE_seaice http://nla.gov.au/nla.party-617536 |
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ftands:oai:ands.org.au::701773 2023-05-15T13:46:59+02:00 Southern Ocean Sea Ice Extent and Area ALLISON, IAN (hasPrincipalInvestigator) ALLISON, IAN (processor) Australian Antarctic Data Centre (publisher) Spatial: northlimit=-60; southlimit=-80; westlimit=-180; eastLimit=180; projection=WGS84 Temporal: From 1980-01-01 https://researchdata.ands.org.au/southern-ocean-sea-extent-area/701773 https://doi.org/10.26179/5d37f84cbf569 https://data.aad.gov.au/metadata/records/SOE_seaice http://nla.gov.au/nla.party-617536 unknown Australian Antarctic Data Centre https://researchdata.ands.org.au/southern-ocean-sea-extent-area/701773 d0e0025a-3d17-4f75-bd5c-0925c9dadcea doi:10.26179/5d37f84cbf569 SOE_seaice https://data.aad.gov.au/metadata/records/SOE_seaice http://nla.gov.au/nla.party-617536 Australian Antarctic Data Centre oceans ICE EXTENT EARTH SCIENCE CRYOSPHERE SEA ICE SEA ICE CONCENTRATION STATE OF THE ENVIRONMENT SEA ICE EXTENT VISUAL OBSERVATIONS FIELD SURVEYS OCEAN > SOUTHERN OCEAN GEOGRAPHIC REGION > POLAR dataset ftands https://doi.org/10.26179/5d37f84cbf569 2020-01-05T21:19:19Z This indicator is no longer maintained, and is considered OBSOLETE. INDICATOR DEFINITION The northern limit of the pack ice as defined by the 15% concentration of sea ice determined by the SSM/I instrument or its replacement. TYPE OF INDICATOR There are three types of indicators used in this report: 1.Describes the CONDITION of important elements of a system; 2.Show the extent of the major PRESSURES exerted on a system; 3.Determine RESPONSES to either condition or changes in the condition of a system. This indicator is one of: CONDITION RATIONALE FOR INDICATOR SELECTION Climate is affected by complex interactions between the sea ice and the atmosphere and ocean. The sea ice extent and concentration is determined by the oceanic and atmospheric forcing. There is evidence of variations in the sea ice extent and concentration on a synoptic time scale as storms pass through the region, and variations in sea ice extent on a multi-year time frame with forcing caused by the Antarctic circumpolar wave. Over the past 20 years, there is limited evidence of an increase in spatial ice extent and in the length of time that ice is present. Continued monitoring of sea ice extent and concentration may provide insights into the dynamics of the Southern Ocean and help to predict future climate. DESIGN AND STRATEGY FOR INDICATOR MONITORING PROGRAM NASA uses a combination of satellite passive microwave sensors to measure the brightness values over sea ice covered regions. They then use an algorithm (referred to as the 'team' algorithm) to calculate the ice concentration and to determine the ice edge. The data are available globally on a daily or monthly basis. RESEARCH ISSUES Currently, NASA intends to maintain a series of satellite microwave sensors to continue to monitor sea ice extent and concentration. Ongoing research to interpret the data are currently being carried out at the AAD and the Antarctic and Southern Ocean CRC. Links with other indicators The sea ice extent and concentration has a large impact on the surface salinity and temperatures. Thus strong links with sea surface salinity and sea surface temperatures. Dataset Antarc* Antarctic Sea ice Southern Ocean Research Data Australia (Australian National Data Service - ANDS) Antarctic Southern Ocean The Antarctic ENVELOPE(-180,180,-60,-80) |
institution |
Open Polar |
collection |
Research Data Australia (Australian National Data Service - ANDS) |
op_collection_id |
ftands |
language |
unknown |
topic |
oceans ICE EXTENT EARTH SCIENCE CRYOSPHERE SEA ICE SEA ICE CONCENTRATION STATE OF THE ENVIRONMENT SEA ICE EXTENT VISUAL OBSERVATIONS FIELD SURVEYS OCEAN > SOUTHERN OCEAN GEOGRAPHIC REGION > POLAR |
spellingShingle |
oceans ICE EXTENT EARTH SCIENCE CRYOSPHERE SEA ICE SEA ICE CONCENTRATION STATE OF THE ENVIRONMENT SEA ICE EXTENT VISUAL OBSERVATIONS FIELD SURVEYS OCEAN > SOUTHERN OCEAN GEOGRAPHIC REGION > POLAR Southern Ocean Sea Ice Extent and Area |
topic_facet |
oceans ICE EXTENT EARTH SCIENCE CRYOSPHERE SEA ICE SEA ICE CONCENTRATION STATE OF THE ENVIRONMENT SEA ICE EXTENT VISUAL OBSERVATIONS FIELD SURVEYS OCEAN > SOUTHERN OCEAN GEOGRAPHIC REGION > POLAR |
description |
This indicator is no longer maintained, and is considered OBSOLETE. INDICATOR DEFINITION The northern limit of the pack ice as defined by the 15% concentration of sea ice determined by the SSM/I instrument or its replacement. TYPE OF INDICATOR There are three types of indicators used in this report: 1.Describes the CONDITION of important elements of a system; 2.Show the extent of the major PRESSURES exerted on a system; 3.Determine RESPONSES to either condition or changes in the condition of a system. This indicator is one of: CONDITION RATIONALE FOR INDICATOR SELECTION Climate is affected by complex interactions between the sea ice and the atmosphere and ocean. The sea ice extent and concentration is determined by the oceanic and atmospheric forcing. There is evidence of variations in the sea ice extent and concentration on a synoptic time scale as storms pass through the region, and variations in sea ice extent on a multi-year time frame with forcing caused by the Antarctic circumpolar wave. Over the past 20 years, there is limited evidence of an increase in spatial ice extent and in the length of time that ice is present. Continued monitoring of sea ice extent and concentration may provide insights into the dynamics of the Southern Ocean and help to predict future climate. DESIGN AND STRATEGY FOR INDICATOR MONITORING PROGRAM NASA uses a combination of satellite passive microwave sensors to measure the brightness values over sea ice covered regions. They then use an algorithm (referred to as the 'team' algorithm) to calculate the ice concentration and to determine the ice edge. The data are available globally on a daily or monthly basis. RESEARCH ISSUES Currently, NASA intends to maintain a series of satellite microwave sensors to continue to monitor sea ice extent and concentration. Ongoing research to interpret the data are currently being carried out at the AAD and the Antarctic and Southern Ocean CRC. Links with other indicators The sea ice extent and concentration has a large impact on the surface salinity and temperatures. Thus strong links with sea surface salinity and sea surface temperatures. |
author2 |
ALLISON, IAN (hasPrincipalInvestigator) ALLISON, IAN (processor) Australian Antarctic Data Centre (publisher) |
format |
Dataset |
title |
Southern Ocean Sea Ice Extent and Area |
title_short |
Southern Ocean Sea Ice Extent and Area |
title_full |
Southern Ocean Sea Ice Extent and Area |
title_fullStr |
Southern Ocean Sea Ice Extent and Area |
title_full_unstemmed |
Southern Ocean Sea Ice Extent and Area |
title_sort |
southern ocean sea ice extent and area |
publisher |
Australian Antarctic Data Centre |
url |
https://researchdata.ands.org.au/southern-ocean-sea-extent-area/701773 https://doi.org/10.26179/5d37f84cbf569 https://data.aad.gov.au/metadata/records/SOE_seaice http://nla.gov.au/nla.party-617536 |
op_coverage |
Spatial: northlimit=-60; southlimit=-80; westlimit=-180; eastLimit=180; projection=WGS84 Temporal: From 1980-01-01 |
long_lat |
ENVELOPE(-180,180,-60,-80) |
geographic |
Antarctic Southern Ocean The Antarctic |
geographic_facet |
Antarctic Southern Ocean The Antarctic |
genre |
Antarc* Antarctic Sea ice Southern Ocean |
genre_facet |
Antarc* Antarctic Sea ice Southern Ocean |
op_source |
Australian Antarctic Data Centre |
op_relation |
https://researchdata.ands.org.au/southern-ocean-sea-extent-area/701773 d0e0025a-3d17-4f75-bd5c-0925c9dadcea doi:10.26179/5d37f84cbf569 SOE_seaice https://data.aad.gov.au/metadata/records/SOE_seaice http://nla.gov.au/nla.party-617536 |
op_doi |
https://doi.org/10.26179/5d37f84cbf569 |
_version_ |
1766246097906302976 |