Estimating subpixel turbulent heat flux over leads from MODIS thermal infrared imagery with deep learning
The turbulent heat flux (THF) over leads is an important parameter for climate change monitoring in the Arctic region. THF over leads is often calculated from satellite-derived ice surface temperature (IST) products, in which mixed pixels containing both ice and open water along lead boundaries redu...
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ftnonlinearchiv:oai:noa.gwlb.de:cop_mods_00057119 2024-09-15T18:02:25+00:00 Estimating subpixel turbulent heat flux over leads from MODIS thermal infrared imagery with deep learning Yin, Zhixiang Li, Xiaodong Ge, Yong Shang, Cheng Li, Xinyan Du, Yun Ling, Feng 2021-06 electronic https://doi.org/10.5194/tc-15-2835-2021 https://noa.gwlb.de/receive/cop_mods_00057119 https://noa.gwlb.de/servlets/MCRFileNodeServlet/cop_derivate_00056769/tc-15-2835-2021.pdf https://tc.copernicus.org/articles/15/2835/2021/tc-15-2835-2021.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-15-2835-2021 https://noa.gwlb.de/receive/cop_mods_00057119 https://noa.gwlb.de/servlets/MCRFileNodeServlet/cop_derivate_00056769/tc-15-2835-2021.pdf https://tc.copernicus.org/articles/15/2835/2021/tc-15-2835-2021.pdf https://creativecommons.org/licenses/by/4.0/ uneingeschränkt info:eu-repo/semantics/openAccess article Verlagsveröffentlichung article Text doc-type:article 2021 ftnonlinearchiv https://doi.org/10.5194/tc-15-2835-2021 2024-06-26T04:38:21Z The turbulent heat flux (THF) over leads is an important parameter for climate change monitoring in the Arctic region. THF over leads is often calculated from satellite-derived ice surface temperature (IST) products, in which mixed pixels containing both ice and open water along lead boundaries reduce the accuracy of calculated THF. To address this problem, this paper proposes a deep residual convolutional neural network (CNN)-based framework to estimate THF over leads at the subpixel scale (DeepSTHF) based on remotely sensed images. The proposed DeepSTHF provides an IST image and the corresponding lead map with a finer spatial resolution than the input IST image so that the subpixel-scale THF can be estimated from them. The proposed approach is verified using simulated and real Moderate Resolution Imaging Spectroradiometer images and compared with the conventional cubic interpolation and pixel-based methods. The results demonstrate that the proposed CNN-based method can effectively estimate subpixel-scale information from the coarse data and performs well in producing fine-spatial-resolution IST images and lead maps, thereby providing more accurate and reliable THF over leads. Article in Journal/Newspaper Climate change The Cryosphere Niedersächsisches Online-Archiv NOA The Cryosphere 15 6 2835 2856 |
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article Verlagsveröffentlichung Yin, Zhixiang Li, Xiaodong Ge, Yong Shang, Cheng Li, Xinyan Du, Yun Ling, Feng Estimating subpixel turbulent heat flux over leads from MODIS thermal infrared imagery with deep learning |
topic_facet |
article Verlagsveröffentlichung |
description |
The turbulent heat flux (THF) over leads is an important parameter for climate change monitoring in the Arctic region. THF over leads is often calculated from satellite-derived ice surface temperature (IST) products, in which mixed pixels containing both ice and open water along lead boundaries reduce the accuracy of calculated THF. To address this problem, this paper proposes a deep residual convolutional neural network (CNN)-based framework to estimate THF over leads at the subpixel scale (DeepSTHF) based on remotely sensed images. The proposed DeepSTHF provides an IST image and the corresponding lead map with a finer spatial resolution than the input IST image so that the subpixel-scale THF can be estimated from them. The proposed approach is verified using simulated and real Moderate Resolution Imaging Spectroradiometer images and compared with the conventional cubic interpolation and pixel-based methods. The results demonstrate that the proposed CNN-based method can effectively estimate subpixel-scale information from the coarse data and performs well in producing fine-spatial-resolution IST images and lead maps, thereby providing more accurate and reliable THF over leads. |
format |
Article in Journal/Newspaper |
author |
Yin, Zhixiang Li, Xiaodong Ge, Yong Shang, Cheng Li, Xinyan Du, Yun Ling, Feng |
author_facet |
Yin, Zhixiang Li, Xiaodong Ge, Yong Shang, Cheng Li, Xinyan Du, Yun Ling, Feng |
author_sort |
Yin, Zhixiang |
title |
Estimating subpixel turbulent heat flux over leads from MODIS thermal infrared imagery with deep learning |
title_short |
Estimating subpixel turbulent heat flux over leads from MODIS thermal infrared imagery with deep learning |
title_full |
Estimating subpixel turbulent heat flux over leads from MODIS thermal infrared imagery with deep learning |
title_fullStr |
Estimating subpixel turbulent heat flux over leads from MODIS thermal infrared imagery with deep learning |
title_full_unstemmed |
Estimating subpixel turbulent heat flux over leads from MODIS thermal infrared imagery with deep learning |
title_sort |
estimating subpixel turbulent heat flux over leads from modis thermal infrared imagery with deep learning |
publisher |
Copernicus Publications |
publishDate |
2021 |
url |
https://doi.org/10.5194/tc-15-2835-2021 https://noa.gwlb.de/receive/cop_mods_00057119 https://noa.gwlb.de/servlets/MCRFileNodeServlet/cop_derivate_00056769/tc-15-2835-2021.pdf https://tc.copernicus.org/articles/15/2835/2021/tc-15-2835-2021.pdf |
genre |
Climate change The Cryosphere |
genre_facet |
Climate change 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-15-2835-2021 https://noa.gwlb.de/receive/cop_mods_00057119 https://noa.gwlb.de/servlets/MCRFileNodeServlet/cop_derivate_00056769/tc-15-2835-2021.pdf https://tc.copernicus.org/articles/15/2835/2021/tc-15-2835-2021.pdf |
op_rights |
https://creativecommons.org/licenses/by/4.0/ uneingeschränkt info:eu-repo/semantics/openAccess |
op_doi |
https://doi.org/10.5194/tc-15-2835-2021 |
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The Cryosphere |
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15 |
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6 |
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2835 |
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