Satellite microwave assessment of Northern Hemisphere lake ice phenology from 2002 to 2015
A new automated method enabling consistent satellite assessment of seasonal lake ice phenology at 5 km resolution was developed for all lake pixels (water coverage ≥ 90 %) in the Northern Hemisphere using 36.5 GHz H-polarized brightness temperature (Tb) observations from the Advanced Microwave Scann...
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ftnonlinearchiv:oai:noa.gwlb.de:cop_mods_00042826 2023-05-15T18:32:33+02:00 Satellite microwave assessment of Northern Hemisphere lake ice phenology from 2002 to 2015 Du, Jinyang Kimball, John S. Duguay, Claude Kim, Youngwook Watts, Jennifer D. 2017-01 electronic https://doi.org/10.5194/tc-11-47-2017 https://noa.gwlb.de/receive/cop_mods_00042826 https://noa.gwlb.de/servlets/MCRFileNodeServlet/cop_derivate_00042446/tc-11-47-2017.pdf https://tc.copernicus.org/articles/11/47/2017/tc-11-47-2017.pdf eng eng Copernicus Publications The Cryosphere -- ˜Theœ Cryosphere -- http://www.bibliothek.uni-regensburg.de/ezeit/?2393169 -- http://www.the-cryosphere.net/ -- 1994-0424 https://doi.org/10.5194/tc-11-47-2017 https://noa.gwlb.de/receive/cop_mods_00042826 https://noa.gwlb.de/servlets/MCRFileNodeServlet/cop_derivate_00042446/tc-11-47-2017.pdf https://tc.copernicus.org/articles/11/47/2017/tc-11-47-2017.pdf uneingeschränkt info:eu-repo/semantics/openAccess article Verlagsveröffentlichung article Text doc-type:article 2017 ftnonlinearchiv https://doi.org/10.5194/tc-11-47-2017 2022-02-08T22:40:52Z A new automated method enabling consistent satellite assessment of seasonal lake ice phenology at 5 km resolution was developed for all lake pixels (water coverage ≥ 90 %) in the Northern Hemisphere using 36.5 GHz H-polarized brightness temperature (Tb) observations from the Advanced Microwave Scanning Radiometer for EOS and Advanced Microwave Scanning Radiometer 2 (AMSR-E/2) sensors. The lake phenology metrics include seasonal timing and duration of annual ice cover. A moving t test (MTT) algorithm allows for automated lake ice retrievals with daily temporal fidelity and 5 km resolution gridding. The resulting ice phenology record shows strong agreement with available ground-based observations from the Global Lake and River Ice Phenology Database (95.4 % temporal agreement) and favorable correlations (R) with alternative ice phenology records from the Interactive Multisensor Snow and Ice Mapping System (R = 0.84 for water clear of ice (WCI) dates; R = 0.41 for complete freeze over (CFO) dates) and Canadian Ice Service (R = 0.86 for WCI dates; R = 0.69 for CFO dates). Analysis of the resulting 12-year (2002–2015) AMSR-E/2 ice record indicates increasingly shorter ice cover duration for 43 out of 71 (60.6 %) Northern Hemisphere lakes examined, with significant (p < 0.05) regional trends toward earlier ice melting for only five lakes. Higher-latitude lakes reveal more widespread and larger trends toward shorter ice cover duration than lower-latitude lakes, consistent with enhanced polar warming. This study documents a new satellite-based approach for rapid assessment and regional monitoring of seasonal ice cover changes over large lakes, with resulting accuracy suitable for global change studies. Article in Journal/Newspaper The Cryosphere Niedersächsisches Online-Archiv NOA The Cryosphere 11 1 47 63 |
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English |
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article Verlagsveröffentlichung |
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article Verlagsveröffentlichung Du, Jinyang Kimball, John S. Duguay, Claude Kim, Youngwook Watts, Jennifer D. Satellite microwave assessment of Northern Hemisphere lake ice phenology from 2002 to 2015 |
topic_facet |
article Verlagsveröffentlichung |
description |
A new automated method enabling consistent satellite assessment of seasonal lake ice phenology at 5 km resolution was developed for all lake pixels (water coverage ≥ 90 %) in the Northern Hemisphere using 36.5 GHz H-polarized brightness temperature (Tb) observations from the Advanced Microwave Scanning Radiometer for EOS and Advanced Microwave Scanning Radiometer 2 (AMSR-E/2) sensors. The lake phenology metrics include seasonal timing and duration of annual ice cover. A moving t test (MTT) algorithm allows for automated lake ice retrievals with daily temporal fidelity and 5 km resolution gridding. The resulting ice phenology record shows strong agreement with available ground-based observations from the Global Lake and River Ice Phenology Database (95.4 % temporal agreement) and favorable correlations (R) with alternative ice phenology records from the Interactive Multisensor Snow and Ice Mapping System (R = 0.84 for water clear of ice (WCI) dates; R = 0.41 for complete freeze over (CFO) dates) and Canadian Ice Service (R = 0.86 for WCI dates; R = 0.69 for CFO dates). Analysis of the resulting 12-year (2002–2015) AMSR-E/2 ice record indicates increasingly shorter ice cover duration for 43 out of 71 (60.6 %) Northern Hemisphere lakes examined, with significant (p < 0.05) regional trends toward earlier ice melting for only five lakes. Higher-latitude lakes reveal more widespread and larger trends toward shorter ice cover duration than lower-latitude lakes, consistent with enhanced polar warming. This study documents a new satellite-based approach for rapid assessment and regional monitoring of seasonal ice cover changes over large lakes, with resulting accuracy suitable for global change studies. |
format |
Article in Journal/Newspaper |
author |
Du, Jinyang Kimball, John S. Duguay, Claude Kim, Youngwook Watts, Jennifer D. |
author_facet |
Du, Jinyang Kimball, John S. Duguay, Claude Kim, Youngwook Watts, Jennifer D. |
author_sort |
Du, Jinyang |
title |
Satellite microwave assessment of Northern Hemisphere lake ice phenology from 2002 to 2015 |
title_short |
Satellite microwave assessment of Northern Hemisphere lake ice phenology from 2002 to 2015 |
title_full |
Satellite microwave assessment of Northern Hemisphere lake ice phenology from 2002 to 2015 |
title_fullStr |
Satellite microwave assessment of Northern Hemisphere lake ice phenology from 2002 to 2015 |
title_full_unstemmed |
Satellite microwave assessment of Northern Hemisphere lake ice phenology from 2002 to 2015 |
title_sort |
satellite microwave assessment of northern hemisphere lake ice phenology from 2002 to 2015 |
publisher |
Copernicus Publications |
publishDate |
2017 |
url |
https://doi.org/10.5194/tc-11-47-2017 https://noa.gwlb.de/receive/cop_mods_00042826 https://noa.gwlb.de/servlets/MCRFileNodeServlet/cop_derivate_00042446/tc-11-47-2017.pdf https://tc.copernicus.org/articles/11/47/2017/tc-11-47-2017.pdf |
genre |
The Cryosphere |
genre_facet |
The Cryosphere |
op_relation |
The Cryosphere -- ˜Theœ Cryosphere -- http://www.bibliothek.uni-regensburg.de/ezeit/?2393169 -- http://www.the-cryosphere.net/ -- 1994-0424 https://doi.org/10.5194/tc-11-47-2017 https://noa.gwlb.de/receive/cop_mods_00042826 https://noa.gwlb.de/servlets/MCRFileNodeServlet/cop_derivate_00042446/tc-11-47-2017.pdf https://tc.copernicus.org/articles/11/47/2017/tc-11-47-2017.pdf |
op_rights |
uneingeschränkt info:eu-repo/semantics/openAccess |
op_doi |
https://doi.org/10.5194/tc-11-47-2017 |
container_title |
The Cryosphere |
container_volume |
11 |
container_issue |
1 |
container_start_page |
47 |
op_container_end_page |
63 |
_version_ |
1766216753419911168 |