The Characteristics of Surface Albedo Change Trends over the Antarctic Sea Ice Region during Recent Decades
Based on a long-time series (1982–2015) of remote sensing data, we analyzed the change in surface albedo (SAL) during summer (from December to the following February) for the entire Antarctic Sea Ice Region (ASIR) and five longitudinal sectors around Antarctica: (1). the Weddell Sea (WS), (2). India...
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ftdoajarticles:oai:doaj.org/article:22bc44d9a0eb4bbfb6d4814bfc2daf15 2023-05-15T13:24:19+02:00 The Characteristics of Surface Albedo Change Trends over the Antarctic Sea Ice Region during Recent Decades Chunxia Zhou Teng Zhang Lei Zheng 2019-04-01T00:00:00Z https://doi.org/10.3390/rs11070821 https://doaj.org/article/22bc44d9a0eb4bbfb6d4814bfc2daf15 EN eng MDPI AG https://www.mdpi.com/2072-4292/11/7/821 https://doaj.org/toc/2072-4292 2072-4292 doi:10.3390/rs11070821 https://doaj.org/article/22bc44d9a0eb4bbfb6d4814bfc2daf15 Remote Sensing, Vol 11, Iss 7, p 821 (2019) Antarctica ensemble empirical mode sea ice albedo sea ice concentration sea surface temperature Science Q article 2019 ftdoajarticles https://doi.org/10.3390/rs11070821 2022-12-31T00:56:56Z Based on a long-time series (1982–2015) of remote sensing data, we analyzed the change in surface albedo (SAL) during summer (from December to the following February) for the entire Antarctic Sea Ice Region (ASIR) and five longitudinal sectors around Antarctica: (1). the Weddell Sea (WS), (2). Indian Ocean, (3). Pacific Ocean (PO), (4). Ross Sea, and (5). Bellingshausen–Amundsen Sea (BS). Empirical mode decomposition was used to extract the trend of the original signal, and then a slope test method was utilized to identify a transition point. The SAL provided by the CM SAF cloud, Albedo, and Surface Radiation dataset from AVHRR data-Second Edition was validated at Neumayer station. Sea ice concentration (SIC) and sea surface temperature (SST) were also analyzed. The trend of the SAL/SIC was positive during summer over the ASIR and five longitudinal sectors, except for the BS (−2.926% and −4.596% per decade for SAL and SIC, correspondingly). Moreover, the largest increasing trend of SAL and SIC appeared in the PO at approximately 3.781% and 3.358% per decade, respectively. However, the decreasing trend of SAL/SIC in the BS slowed down, and the increasing trend of SAL/SIC in the PO accelerated. The trend curves of the SST exhibited a crest around 2000–2005; thus, the slope lines of the SST showed an increasing–decreasing type for the ASIR and the five longitudinal sectors. The evolution of summer albedo decreased rapidly in the early summer and then maintained a relatively stable level for the whole ASIR. The change of it mainly depended on the early melt of sea ice during the entire summer. The change of sea ice albedo had a narrow range when compared with composite albedo and SIC over the five longitudinal sectors and reached a stable level earlier. The transition point of SAL/SIC in several sectors appeared around the year 2000, whereas that of the SST for the entire ASIR occurred in 2003–2005. A high value of SAL/SIC and a low value of the SST existed in the WS which can be displayed by the spatial ... Article in Journal/Newspaper Amundsen Sea Antarc* Antarctic Antarctica Ross Sea Sea ice Weddell Sea Directory of Open Access Journals: DOAJ Articles Antarctic The Antarctic Weddell Sea Ross Sea Neumayer Neumayer Station Amundsen Sea Pacific Indian Weddell Remote Sensing 11 7 821 |
institution |
Open Polar |
collection |
Directory of Open Access Journals: DOAJ Articles |
op_collection_id |
ftdoajarticles |
language |
English |
topic |
Antarctica ensemble empirical mode sea ice albedo sea ice concentration sea surface temperature Science Q |
spellingShingle |
Antarctica ensemble empirical mode sea ice albedo sea ice concentration sea surface temperature Science Q Chunxia Zhou Teng Zhang Lei Zheng The Characteristics of Surface Albedo Change Trends over the Antarctic Sea Ice Region during Recent Decades |
topic_facet |
Antarctica ensemble empirical mode sea ice albedo sea ice concentration sea surface temperature Science Q |
description |
Based on a long-time series (1982–2015) of remote sensing data, we analyzed the change in surface albedo (SAL) during summer (from December to the following February) for the entire Antarctic Sea Ice Region (ASIR) and five longitudinal sectors around Antarctica: (1). the Weddell Sea (WS), (2). Indian Ocean, (3). Pacific Ocean (PO), (4). Ross Sea, and (5). Bellingshausen–Amundsen Sea (BS). Empirical mode decomposition was used to extract the trend of the original signal, and then a slope test method was utilized to identify a transition point. The SAL provided by the CM SAF cloud, Albedo, and Surface Radiation dataset from AVHRR data-Second Edition was validated at Neumayer station. Sea ice concentration (SIC) and sea surface temperature (SST) were also analyzed. The trend of the SAL/SIC was positive during summer over the ASIR and five longitudinal sectors, except for the BS (−2.926% and −4.596% per decade for SAL and SIC, correspondingly). Moreover, the largest increasing trend of SAL and SIC appeared in the PO at approximately 3.781% and 3.358% per decade, respectively. However, the decreasing trend of SAL/SIC in the BS slowed down, and the increasing trend of SAL/SIC in the PO accelerated. The trend curves of the SST exhibited a crest around 2000–2005; thus, the slope lines of the SST showed an increasing–decreasing type for the ASIR and the five longitudinal sectors. The evolution of summer albedo decreased rapidly in the early summer and then maintained a relatively stable level for the whole ASIR. The change of it mainly depended on the early melt of sea ice during the entire summer. The change of sea ice albedo had a narrow range when compared with composite albedo and SIC over the five longitudinal sectors and reached a stable level earlier. The transition point of SAL/SIC in several sectors appeared around the year 2000, whereas that of the SST for the entire ASIR occurred in 2003–2005. A high value of SAL/SIC and a low value of the SST existed in the WS which can be displayed by the spatial ... |
format |
Article in Journal/Newspaper |
author |
Chunxia Zhou Teng Zhang Lei Zheng |
author_facet |
Chunxia Zhou Teng Zhang Lei Zheng |
author_sort |
Chunxia Zhou |
title |
The Characteristics of Surface Albedo Change Trends over the Antarctic Sea Ice Region during Recent Decades |
title_short |
The Characteristics of Surface Albedo Change Trends over the Antarctic Sea Ice Region during Recent Decades |
title_full |
The Characteristics of Surface Albedo Change Trends over the Antarctic Sea Ice Region during Recent Decades |
title_fullStr |
The Characteristics of Surface Albedo Change Trends over the Antarctic Sea Ice Region during Recent Decades |
title_full_unstemmed |
The Characteristics of Surface Albedo Change Trends over the Antarctic Sea Ice Region during Recent Decades |
title_sort |
characteristics of surface albedo change trends over the antarctic sea ice region during recent decades |
publisher |
MDPI AG |
publishDate |
2019 |
url |
https://doi.org/10.3390/rs11070821 https://doaj.org/article/22bc44d9a0eb4bbfb6d4814bfc2daf15 |
geographic |
Antarctic The Antarctic Weddell Sea Ross Sea Neumayer Neumayer Station Amundsen Sea Pacific Indian Weddell |
geographic_facet |
Antarctic The Antarctic Weddell Sea Ross Sea Neumayer Neumayer Station Amundsen Sea Pacific Indian Weddell |
genre |
Amundsen Sea Antarc* Antarctic Antarctica Ross Sea Sea ice Weddell Sea |
genre_facet |
Amundsen Sea Antarc* Antarctic Antarctica Ross Sea Sea ice Weddell Sea |
op_source |
Remote Sensing, Vol 11, Iss 7, p 821 (2019) |
op_relation |
https://www.mdpi.com/2072-4292/11/7/821 https://doaj.org/toc/2072-4292 2072-4292 doi:10.3390/rs11070821 https://doaj.org/article/22bc44d9a0eb4bbfb6d4814bfc2daf15 |
op_doi |
https://doi.org/10.3390/rs11070821 |
container_title |
Remote Sensing |
container_volume |
11 |
container_issue |
7 |
container_start_page |
821 |
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1766378706315509760 |