Data

Circum-Antarctic landfast sea ice distribution at minimum extent, 2018-2022

Australian Antarctic Division
Fraser, A. ; FRASER, ALEXANDER
Viewed: [[ro.stat.viewed]] Cited: [[ro.stat.cited]] Accessed: [[ro.stat.accessed]]
ctx_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Adc&rfr_id=info%3Asid%2FANDS&rft_id=info:doi10.26179/g5pp-z960&rft.title=Circum-Antarctic landfast sea ice distribution at minimum extent, 2018-2022&rft.identifier=10.26179/g5pp-z960&rft.publisher=Australian Antarctic Data Centre&rft.description=This dataset (provided as a series of CF-compatible netcdf file) consists of 5 maps of Antarctic landfast sea ice, derived from NASA MODIS imagery. There is one map per year, spanning the 5 year period from 2018 to 2022. The one map per year covers the time period from Day-Of-Year 61-75, which is the time of yearly minimum extent.The data are provided in a polar stereographic projection with a latitude of true scale at 70 S (i.e., to maintain compatibility with the NSIDC polar stereographic projection).Progress Code: completedStatement: This dataset broadly follows the methodology given in Fraser et al., 2020 (https://doi.org/10.5194/essd-12-2987-2020) but contains no automation (i.e., all fast-ice edges were manually extracted) due to the relatively small amount of effort required to manually extract only 5 maps.&rft.creator=Fraser, A. &rft.creator=FRASER, ALEXANDER &rft.date=2022&rft.coverage=westlimit=-180; southlimit=-83; eastlimit=180; northlimit=-60&rft.coverage=westlimit=-180; southlimit=-83; eastlimit=180; northlimit=-60&rft_rights=These data are publicly available for download from the provided URL.&rft_rights=Attribution 4.0 International (CC BY 4.0) https://creativecommons.org/licenses/by/4.0/legalcode&rft_rights=This data set conforms to the CCBY Attribution License (http://creativecommons.org/licenses/by/4.0/). Please follow instructions listed in the citation reference provided at http://data.aad.gov.au/aadc/metadata/citation.cfm?entry_id=AAS_4116_Fast_ice_minimum_18to22 when using these data.&rft_rights=This metadata record is publicly available.&rft.type=dataset&rft.language=English Access the data
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Licence & Rights:

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CC-BY

Attribution 4.0 International (CC BY 4.0)
https://creativecommons.org/licenses/by/4.0/legalcode

These data are publicly available for download from the provided URL.

This data set conforms to the CCBY Attribution License (http://creativecommons.org/licenses/by/4.0/).

Please follow instructions listed in the citation reference provided at http://data.aad.gov.au/aadc/metadata/citation.cfm?entry_id=AAS_4116_Fast_ice_minimum_18to22 when using these data.

This metadata record is publicly available.

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Full description

This dataset (provided as a series of CF-compatible netcdf file) consists of 5 maps of Antarctic landfast sea ice, derived from NASA MODIS imagery. There is one map per year, spanning the 5 year period from 2018 to 2022. The one map per year covers the time period from Day-Of-Year 61-75, which is the time of yearly minimum extent.
The data are provided in a polar stereographic projection with a latitude of true scale at 70 S (i.e., to maintain compatibility with the NSIDC polar stereographic projection).

Lineage

Progress Code: completed
Statement: This dataset broadly follows the methodology given in Fraser et al., 2020 (https://doi.org/10.5194/essd-12-2987-2020) but contains no automation (i.e., all fast-ice edges were manually extracted) due to the relatively small amount of effort required to manually extract only 5 maps.

Notes

Purpose
This circum-Antarctic dataset of landfast sea ice minimum yearly extent a) illustrates the large inter-annual variability of fast-ice minimum extent, and b) indicates a sharp decline in minimum fast-ice extent in 2022.

Data time period: 2018-03-02 to 2022-03-17

This dataset is part of a larger collection

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180,-60 180,-83 -180,-83 -180,-60 180,-60

0,-71.5

text: westlimit=-180; southlimit=-83; eastlimit=180; northlimit=-60

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Other Information
Download the dataset. (GET DATA > DIRECT DOWNLOAD)

url : https://data.aad.gov.au/eds/5524/download

Public information for AAS project AAS_4116 (PROJECT HOME PAGE)

url : https://projects.aad.gov.au/report_project_public.cfm?project_no=AAS_4116

Citation reference for this metadata record and dataset. (VIEW RELATED INFORMATION)

url : https://data.aad.gov.au/aadc/metadata/citation.cfm?entry_id=AAS_4116_Fast_ice_minimum_18to22

ACN 633 798 857