Comparison of Hemispheric and Regional Sea Ice Extent and Area Trends from NOAA and NASA Passive Microwave-Derived Climate Records
Three passive microwave-based sea ice products archived at the National Snow and Ice Data Center (NSIDC) are compared: (1) the NASA Team (NT) algorithm product, (2) Bootstrap (BT) algorithm product, and (3) a new version (Version 4) of the NOAA/NSIDC Climate Data Record (CDR) product. Most notable f...
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ftmdpi:oai:mdpi.com:/2072-4292/14/3/619/ 2023-08-20T04:00:41+02:00 Comparison of Hemispheric and Regional Sea Ice Extent and Area Trends from NOAA and NASA Passive Microwave-Derived Climate Records Walter N. Meier J. Scott Stewart Ann Windnagel Florence M. Fetterer agris 2022-01-27 application/pdf https://doi.org/10.3390/rs14030619 EN eng Multidisciplinary Digital Publishing Institute Ocean Remote Sensing https://dx.doi.org/10.3390/rs14030619 https://creativecommons.org/licenses/by/4.0/ Remote Sensing; Volume 14; Issue 3; Pages: 619 sea ice remote sensing passive microwave Arctic Antarctic sea ice extent sea ice area Text 2022 ftmdpi https://doi.org/10.3390/rs14030619 2023-08-01T03:58:58Z Three passive microwave-based sea ice products archived at the National Snow and Ice Data Center (NSIDC) are compared: (1) the NASA Team (NT) algorithm product, (2) Bootstrap (BT) algorithm product, and (3) a new version (Version 4) of the NOAA/NSIDC Climate Data Record (CDR) product. Most notable for the CDR Version 4 is the addition of the early passive microwave record, 1979 to 1987. The focus of this study is on long-term trends in monthly extent and area. In addition to hemispheric trends, regional analysis is also carried out, including use of a new Northern Hemisphere regional mask. The results indicate overall good consistency between the products, with all three products showing strong statistically significant negative trends in the Arctic and small borderline significant positive trends in the Antarctic. Regionally, the patterns are similar, except for a notable outlier of the NT area having a steeper trend in the Central Arctic, likely related to increasing surface melt. Other differences are due to varied approaches to quality control, e.g., weather filtering and correction of mixed land-ocean grid cells. Another factor, particularly in regards to NT trends with BT or CDR, is the inter-sensor calibration approach, which yields small discontinuities between the products. These varied approaches yield small differences in trends. In the Arctic, such differences are not critical, but in the Antarctic, where overall trends are near zero and borderline statistically significant, the differences are potentially important in the interpretation of trends. Text Antarc* Antarctic Arctic National Snow and Ice Data Center Sea ice MDPI Open Access Publishing Arctic Antarctic The Antarctic Remote Sensing 14 3 619 |
institution |
Open Polar |
collection |
MDPI Open Access Publishing |
op_collection_id |
ftmdpi |
language |
English |
topic |
sea ice remote sensing passive microwave Arctic Antarctic sea ice extent sea ice area |
spellingShingle |
sea ice remote sensing passive microwave Arctic Antarctic sea ice extent sea ice area Walter N. Meier J. Scott Stewart Ann Windnagel Florence M. Fetterer Comparison of Hemispheric and Regional Sea Ice Extent and Area Trends from NOAA and NASA Passive Microwave-Derived Climate Records |
topic_facet |
sea ice remote sensing passive microwave Arctic Antarctic sea ice extent sea ice area |
description |
Three passive microwave-based sea ice products archived at the National Snow and Ice Data Center (NSIDC) are compared: (1) the NASA Team (NT) algorithm product, (2) Bootstrap (BT) algorithm product, and (3) a new version (Version 4) of the NOAA/NSIDC Climate Data Record (CDR) product. Most notable for the CDR Version 4 is the addition of the early passive microwave record, 1979 to 1987. The focus of this study is on long-term trends in monthly extent and area. In addition to hemispheric trends, regional analysis is also carried out, including use of a new Northern Hemisphere regional mask. The results indicate overall good consistency between the products, with all three products showing strong statistically significant negative trends in the Arctic and small borderline significant positive trends in the Antarctic. Regionally, the patterns are similar, except for a notable outlier of the NT area having a steeper trend in the Central Arctic, likely related to increasing surface melt. Other differences are due to varied approaches to quality control, e.g., weather filtering and correction of mixed land-ocean grid cells. Another factor, particularly in regards to NT trends with BT or CDR, is the inter-sensor calibration approach, which yields small discontinuities between the products. These varied approaches yield small differences in trends. In the Arctic, such differences are not critical, but in the Antarctic, where overall trends are near zero and borderline statistically significant, the differences are potentially important in the interpretation of trends. |
format |
Text |
author |
Walter N. Meier J. Scott Stewart Ann Windnagel Florence M. Fetterer |
author_facet |
Walter N. Meier J. Scott Stewart Ann Windnagel Florence M. Fetterer |
author_sort |
Walter N. Meier |
title |
Comparison of Hemispheric and Regional Sea Ice Extent and Area Trends from NOAA and NASA Passive Microwave-Derived Climate Records |
title_short |
Comparison of Hemispheric and Regional Sea Ice Extent and Area Trends from NOAA and NASA Passive Microwave-Derived Climate Records |
title_full |
Comparison of Hemispheric and Regional Sea Ice Extent and Area Trends from NOAA and NASA Passive Microwave-Derived Climate Records |
title_fullStr |
Comparison of Hemispheric and Regional Sea Ice Extent and Area Trends from NOAA and NASA Passive Microwave-Derived Climate Records |
title_full_unstemmed |
Comparison of Hemispheric and Regional Sea Ice Extent and Area Trends from NOAA and NASA Passive Microwave-Derived Climate Records |
title_sort |
comparison of hemispheric and regional sea ice extent and area trends from noaa and nasa passive microwave-derived climate records |
publisher |
Multidisciplinary Digital Publishing Institute |
publishDate |
2022 |
url |
https://doi.org/10.3390/rs14030619 |
op_coverage |
agris |
geographic |
Arctic Antarctic The Antarctic |
geographic_facet |
Arctic Antarctic The Antarctic |
genre |
Antarc* Antarctic Arctic National Snow and Ice Data Center Sea ice |
genre_facet |
Antarc* Antarctic Arctic National Snow and Ice Data Center Sea ice |
op_source |
Remote Sensing; Volume 14; Issue 3; Pages: 619 |
op_relation |
Ocean Remote Sensing https://dx.doi.org/10.3390/rs14030619 |
op_rights |
https://creativecommons.org/licenses/by/4.0/ |
op_doi |
https://doi.org/10.3390/rs14030619 |
container_title |
Remote Sensing |
container_volume |
14 |
container_issue |
3 |
container_start_page |
619 |
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1774719719760199680 |