A Comparison of AMSR-E/Aqua Snow Products with in situ Observations and MODIS Snow Cover Products in the Mackenzie River Basin, Canada
Since 2002, global snow water equivalent (SWE) estimates have been generated using Advanced Microwave Scanning Radiometer (AMSR-E)/Aqua data. Accurate estimates of SWE are important to improve monitoring and managing of water resources in specific regions. SWE and snow map product accuracy are funct...
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Language: | English |
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ftcdlib:qt0xk061st 2023-05-15T17:09:39+02:00 A Comparison of AMSR-E/Aqua Snow Products with in situ Observations and MODIS Snow Cover Products in the Mackenzie River Basin, Canada Tong, Jinjun Velicogna, Isabella 2313 - 2322 2010-09-28 application/pdf http://www.escholarship.org/uc/item/0xk061st english eng eScholarship, University of California qt0xk061st http://www.escholarship.org/uc/item/0xk061st Attribution (CC BY): http://creativecommons.org/licenses/by/3.0/ CC-BY Tong, Jinjun; & Velicogna, Isabella. (2010). A Comparison of AMSR-E/Aqua Snow Products with in situ Observations and MODIS Snow Cover Products in the Mackenzie River Basin, Canada. Remote Sensing, 2(10), 2313 - 2322. doi:10.3390/rs2102313. UC Irvine: Department of Earth System Science, UCI. Retrieved from: http://www.escholarship.org/uc/item/0xk061st Physical Sciences and Mathematics snow water equivalent snow cover extent AMSR-E MODIS Mackenzie River Basin article 2010 ftcdlib https://doi.org/10.3390/rs2102313 2016-04-02T18:51:17Z Since 2002, global snow water equivalent (SWE) estimates have been generated using Advanced Microwave Scanning Radiometer (AMSR-E)/Aqua data. Accurate estimates of SWE are important to improve monitoring and managing of water resources in specific regions. SWE and snow map product accuracy are functions of topography and of land cover type because landscape characteristics have a strong influence on redistribution and physical properties of snow cover, and influence the microwave properties of the surface. Here we evaluate the AMSR-E SWE and derived snow map products in the Mackenzie River Basin (MRB), Canada, which is characterized by complex topography and varying land cover types from tundra to boreal forest. We compare in situ snow depth observations and Moderate Resolution Imaging Spectroradiometer (MODIS) snow cover maps from January 2003 to December 2007 with passive microwave remotely sensed SWE from AMSR-E and derived snow cover maps. In the MRB the mean absolute error ranges from 12 mm in the early winter season to 50 mm in the late winter season and overestimations of snow cover maps based on a 1 mm threshold of AMSR-E SWE varies from 4% to 8%. The optimal threshold for AMSR-E SWE to classify the pixels as snow ranges from 6 mm to 9 mm. The overall accuracy of new snow cover maps from AMSR-E varies from 91% to 94% in different sub-basins in the MRB. Article in Journal/Newspaper Mackenzie river Tundra University of California: eScholarship Canada Mackenzie River Remote Sensing 2 10 2313 2322 |
institution |
Open Polar |
collection |
University of California: eScholarship |
op_collection_id |
ftcdlib |
language |
English |
topic |
Physical Sciences and Mathematics snow water equivalent snow cover extent AMSR-E MODIS Mackenzie River Basin |
spellingShingle |
Physical Sciences and Mathematics snow water equivalent snow cover extent AMSR-E MODIS Mackenzie River Basin Tong, Jinjun Velicogna, Isabella A Comparison of AMSR-E/Aqua Snow Products with in situ Observations and MODIS Snow Cover Products in the Mackenzie River Basin, Canada |
topic_facet |
Physical Sciences and Mathematics snow water equivalent snow cover extent AMSR-E MODIS Mackenzie River Basin |
description |
Since 2002, global snow water equivalent (SWE) estimates have been generated using Advanced Microwave Scanning Radiometer (AMSR-E)/Aqua data. Accurate estimates of SWE are important to improve monitoring and managing of water resources in specific regions. SWE and snow map product accuracy are functions of topography and of land cover type because landscape characteristics have a strong influence on redistribution and physical properties of snow cover, and influence the microwave properties of the surface. Here we evaluate the AMSR-E SWE and derived snow map products in the Mackenzie River Basin (MRB), Canada, which is characterized by complex topography and varying land cover types from tundra to boreal forest. We compare in situ snow depth observations and Moderate Resolution Imaging Spectroradiometer (MODIS) snow cover maps from January 2003 to December 2007 with passive microwave remotely sensed SWE from AMSR-E and derived snow cover maps. In the MRB the mean absolute error ranges from 12 mm in the early winter season to 50 mm in the late winter season and overestimations of snow cover maps based on a 1 mm threshold of AMSR-E SWE varies from 4% to 8%. The optimal threshold for AMSR-E SWE to classify the pixels as snow ranges from 6 mm to 9 mm. The overall accuracy of new snow cover maps from AMSR-E varies from 91% to 94% in different sub-basins in the MRB. |
format |
Article in Journal/Newspaper |
author |
Tong, Jinjun Velicogna, Isabella |
author_facet |
Tong, Jinjun Velicogna, Isabella |
author_sort |
Tong, Jinjun |
title |
A Comparison of AMSR-E/Aqua Snow Products with in situ Observations and MODIS Snow Cover Products in the Mackenzie River Basin, Canada |
title_short |
A Comparison of AMSR-E/Aqua Snow Products with in situ Observations and MODIS Snow Cover Products in the Mackenzie River Basin, Canada |
title_full |
A Comparison of AMSR-E/Aqua Snow Products with in situ Observations and MODIS Snow Cover Products in the Mackenzie River Basin, Canada |
title_fullStr |
A Comparison of AMSR-E/Aqua Snow Products with in situ Observations and MODIS Snow Cover Products in the Mackenzie River Basin, Canada |
title_full_unstemmed |
A Comparison of AMSR-E/Aqua Snow Products with in situ Observations and MODIS Snow Cover Products in the Mackenzie River Basin, Canada |
title_sort |
comparison of amsr-e/aqua snow products with in situ observations and modis snow cover products in the mackenzie river basin, canada |
publisher |
eScholarship, University of California |
publishDate |
2010 |
url |
http://www.escholarship.org/uc/item/0xk061st |
op_coverage |
2313 - 2322 |
geographic |
Canada Mackenzie River |
geographic_facet |
Canada Mackenzie River |
genre |
Mackenzie river Tundra |
genre_facet |
Mackenzie river Tundra |
op_source |
Tong, Jinjun; & Velicogna, Isabella. (2010). A Comparison of AMSR-E/Aqua Snow Products with in situ Observations and MODIS Snow Cover Products in the Mackenzie River Basin, Canada. Remote Sensing, 2(10), 2313 - 2322. doi:10.3390/rs2102313. UC Irvine: Department of Earth System Science, UCI. Retrieved from: http://www.escholarship.org/uc/item/0xk061st |
op_relation |
qt0xk061st http://www.escholarship.org/uc/item/0xk061st |
op_rights |
Attribution (CC BY): http://creativecommons.org/licenses/by/3.0/ |
op_rightsnorm |
CC-BY |
op_doi |
https://doi.org/10.3390/rs2102313 |
container_title |
Remote Sensing |
container_volume |
2 |
container_issue |
10 |
container_start_page |
2313 |
op_container_end_page |
2322 |
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1766065805381861376 |