Brief communication: Identification of tundra topsoil frozen/thawed state from SMAP and GCOM-W1 radiometer measurements using the spectral gradient method
From 2015 to 2020, using the spectral gradient radiometric method, the possibility of the frozen/thawed (FT) state identification of tundra soil was investigated based on Soil Moisture Active Passive (SMAP) and Global Change Observation Mission – Water Satellite 1 (GCOM-W1) satellite observations of...
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2023
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ftdoajarticles:oai:doaj.org/article:c8ec025d103d4838bd31cbd0e2e18434 2023-10-29T02:34:24+01:00 Brief communication: Identification of tundra topsoil frozen/thawed state from SMAP and GCOM-W1 radiometer measurements using the spectral gradient method K. Muzalevskiy Z. Ruzicka A. Roy M. Loranty A. Vasiliev 2023-09-01T00:00:00Z https://doi.org/10.5194/tc-17-4155-2023 https://doaj.org/article/c8ec025d103d4838bd31cbd0e2e18434 EN eng Copernicus Publications https://tc.copernicus.org/articles/17/4155/2023/tc-17-4155-2023.pdf https://doaj.org/toc/1994-0416 https://doaj.org/toc/1994-0424 doi:10.5194/tc-17-4155-2023 1994-0416 1994-0424 https://doaj.org/article/c8ec025d103d4838bd31cbd0e2e18434 The Cryosphere, Vol 17, Pp 4155-4164 (2023) Environmental sciences GE1-350 Geology QE1-996.5 article 2023 ftdoajarticles https://doi.org/10.5194/tc-17-4155-2023 2023-10-01T00:41:03Z From 2015 to 2020, using the spectral gradient radiometric method, the possibility of the frozen/thawed (FT) state identification of tundra soil was investigated based on Soil Moisture Active Passive (SMAP) and Global Change Observation Mission – Water Satellite 1 (GCOM-W1) satellite observations of 10 test sites located in the Arctic regions of Canada, Finland, Russia, and the USA. It is shown that the spectral gradients of brightness temperature and reflectivity (measured in the frequency range from 1.4 to 36.5 GHz with horizontal polarization, a determination coefficient from 0.775 to 0.834, a root-mean-square error from 6.6 to 10.7 d and a bias from − 3.4 to + 6.5 d) make it possible to identify the FT state of the tundra topsoil. The spectral gradient method has a higher accuracy with respect to the identification of the FT state of tundra soils than single-frequency methods based on the calculation of polarization index. Article in Journal/Newspaper Arctic The Cryosphere Tundra Directory of Open Access Journals: DOAJ Articles The Cryosphere 17 9 4155 4164 |
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Open Polar |
collection |
Directory of Open Access Journals: DOAJ Articles |
op_collection_id |
ftdoajarticles |
language |
English |
topic |
Environmental sciences GE1-350 Geology QE1-996.5 |
spellingShingle |
Environmental sciences GE1-350 Geology QE1-996.5 K. Muzalevskiy Z. Ruzicka A. Roy M. Loranty A. Vasiliev Brief communication: Identification of tundra topsoil frozen/thawed state from SMAP and GCOM-W1 radiometer measurements using the spectral gradient method |
topic_facet |
Environmental sciences GE1-350 Geology QE1-996.5 |
description |
From 2015 to 2020, using the spectral gradient radiometric method, the possibility of the frozen/thawed (FT) state identification of tundra soil was investigated based on Soil Moisture Active Passive (SMAP) and Global Change Observation Mission – Water Satellite 1 (GCOM-W1) satellite observations of 10 test sites located in the Arctic regions of Canada, Finland, Russia, and the USA. It is shown that the spectral gradients of brightness temperature and reflectivity (measured in the frequency range from 1.4 to 36.5 GHz with horizontal polarization, a determination coefficient from 0.775 to 0.834, a root-mean-square error from 6.6 to 10.7 d and a bias from − 3.4 to + 6.5 d) make it possible to identify the FT state of the tundra topsoil. The spectral gradient method has a higher accuracy with respect to the identification of the FT state of tundra soils than single-frequency methods based on the calculation of polarization index. |
format |
Article in Journal/Newspaper |
author |
K. Muzalevskiy Z. Ruzicka A. Roy M. Loranty A. Vasiliev |
author_facet |
K. Muzalevskiy Z. Ruzicka A. Roy M. Loranty A. Vasiliev |
author_sort |
K. Muzalevskiy |
title |
Brief communication: Identification of tundra topsoil frozen/thawed state from SMAP and GCOM-W1 radiometer measurements using the spectral gradient method |
title_short |
Brief communication: Identification of tundra topsoil frozen/thawed state from SMAP and GCOM-W1 radiometer measurements using the spectral gradient method |
title_full |
Brief communication: Identification of tundra topsoil frozen/thawed state from SMAP and GCOM-W1 radiometer measurements using the spectral gradient method |
title_fullStr |
Brief communication: Identification of tundra topsoil frozen/thawed state from SMAP and GCOM-W1 radiometer measurements using the spectral gradient method |
title_full_unstemmed |
Brief communication: Identification of tundra topsoil frozen/thawed state from SMAP and GCOM-W1 radiometer measurements using the spectral gradient method |
title_sort |
brief communication: identification of tundra topsoil frozen/thawed state from smap and gcom-w1 radiometer measurements using the spectral gradient method |
publisher |
Copernicus Publications |
publishDate |
2023 |
url |
https://doi.org/10.5194/tc-17-4155-2023 https://doaj.org/article/c8ec025d103d4838bd31cbd0e2e18434 |
genre |
Arctic The Cryosphere Tundra |
genre_facet |
Arctic The Cryosphere Tundra |
op_source |
The Cryosphere, Vol 17, Pp 4155-4164 (2023) |
op_relation |
https://tc.copernicus.org/articles/17/4155/2023/tc-17-4155-2023.pdf https://doaj.org/toc/1994-0416 https://doaj.org/toc/1994-0424 doi:10.5194/tc-17-4155-2023 1994-0416 1994-0424 https://doaj.org/article/c8ec025d103d4838bd31cbd0e2e18434 |
op_doi |
https://doi.org/10.5194/tc-17-4155-2023 |
container_title |
The Cryosphere |
container_volume |
17 |
container_issue |
9 |
container_start_page |
4155 |
op_container_end_page |
4164 |
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1781056984343117824 |