Analyzing Changes in Frozen Soil in the Source Region of the Yellow River Using the MODIS Land Surface Temperature Products
The degradation of the frozen soil in the Qinghai–Tibetan Plateau (QTP) caused by climate warming has attracted extensive worldwide attention due to its significant effects on the ecosystem and hydrological processes. In this study, we propose an effective approach to estimate the spatial distributi...
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ftdoajarticles:oai:doaj.org/article:c7a5fe5667ea40e6a0fa15792acd0d07 2024-01-07T09:37:55+01:00 Analyzing Changes in Frozen Soil in the Source Region of the Yellow River Using the MODIS Land Surface Temperature Products Huiyu Cao Bing Gao Tingting Gong Bo Wang 2021-01-01T00:00:00Z https://doi.org/10.3390/rs13020180 https://doaj.org/article/c7a5fe5667ea40e6a0fa15792acd0d07 EN eng MDPI AG https://www.mdpi.com/2072-4292/13/2/180 https://doaj.org/toc/2072-4292 doi:10.3390/rs13020180 2072-4292 https://doaj.org/article/c7a5fe5667ea40e6a0fa15792acd0d07 Remote Sensing, Vol 13, Iss 2, p 180 (2021) land surface temperature source region of the Yellow River permafrost seasonally-frozen ground Stefan formula Science Q article 2021 ftdoajarticles https://doi.org/10.3390/rs13020180 2023-12-10T01:48:20Z The degradation of the frozen soil in the Qinghai–Tibetan Plateau (QTP) caused by climate warming has attracted extensive worldwide attention due to its significant effects on the ecosystem and hydrological processes. In this study, we propose an effective approach to estimate the spatial distribution and changes in the frozen soil using the moderate-resolution imaging spectroradiometer (MODIS) land surface temperature products as inputs. A comparison with in-situ observations suggests that this method can accurately estimate the mean daily land surface temperature, the spatial distribution of the permafrost, and the maximum thickness of the seasonally-frozen ground in the source region of the Yellow River, located in the northeastern area of the QTP. The results of The Temperature at the Top of the Permafrost model indicates that the area of permafrost in the source region of the Yellow River decreased by 4.82% in the period from 2003 to 2019, with an increase in the areal mean air temperature of 0.35 °C/10 years. A high spatial heterogeneity in the frozen soil changes was revealed. The basin-averaged active layer thickness of the permafrost increased at a rate of 5.46 cm/10 years, and the basin-averaged maximum thickness of the seasonally-frozen ground decreased at a rate of 3.66 cm/10 years. The uncertainties in calculating the mean daily land surface temperature and the soil’s thermal conductivity were likely to influence the accuracy of the estimation of the spatial distribution of the permafrost and the maximum thickness of the seasonally-frozen ground, which highlight the importance of the better integration of field observations and multi-source remote sensing data in order to improve the modelling of frozen soil in the future. Overall, the approach proposed in this study may contribute to the improvement of the application of the MODIS land surface temperature data in the study of frozen soil changes in large catchments with limited in-situ observations in the QTP. Article in Journal/Newspaper Active layer thickness permafrost Directory of Open Access Journals: DOAJ Articles Remote Sensing 13 2 180 |
institution |
Open Polar |
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Directory of Open Access Journals: DOAJ Articles |
op_collection_id |
ftdoajarticles |
language |
English |
topic |
land surface temperature source region of the Yellow River permafrost seasonally-frozen ground Stefan formula Science Q |
spellingShingle |
land surface temperature source region of the Yellow River permafrost seasonally-frozen ground Stefan formula Science Q Huiyu Cao Bing Gao Tingting Gong Bo Wang Analyzing Changes in Frozen Soil in the Source Region of the Yellow River Using the MODIS Land Surface Temperature Products |
topic_facet |
land surface temperature source region of the Yellow River permafrost seasonally-frozen ground Stefan formula Science Q |
description |
The degradation of the frozen soil in the Qinghai–Tibetan Plateau (QTP) caused by climate warming has attracted extensive worldwide attention due to its significant effects on the ecosystem and hydrological processes. In this study, we propose an effective approach to estimate the spatial distribution and changes in the frozen soil using the moderate-resolution imaging spectroradiometer (MODIS) land surface temperature products as inputs. A comparison with in-situ observations suggests that this method can accurately estimate the mean daily land surface temperature, the spatial distribution of the permafrost, and the maximum thickness of the seasonally-frozen ground in the source region of the Yellow River, located in the northeastern area of the QTP. The results of The Temperature at the Top of the Permafrost model indicates that the area of permafrost in the source region of the Yellow River decreased by 4.82% in the period from 2003 to 2019, with an increase in the areal mean air temperature of 0.35 °C/10 years. A high spatial heterogeneity in the frozen soil changes was revealed. The basin-averaged active layer thickness of the permafrost increased at a rate of 5.46 cm/10 years, and the basin-averaged maximum thickness of the seasonally-frozen ground decreased at a rate of 3.66 cm/10 years. The uncertainties in calculating the mean daily land surface temperature and the soil’s thermal conductivity were likely to influence the accuracy of the estimation of the spatial distribution of the permafrost and the maximum thickness of the seasonally-frozen ground, which highlight the importance of the better integration of field observations and multi-source remote sensing data in order to improve the modelling of frozen soil in the future. Overall, the approach proposed in this study may contribute to the improvement of the application of the MODIS land surface temperature data in the study of frozen soil changes in large catchments with limited in-situ observations in the QTP. |
format |
Article in Journal/Newspaper |
author |
Huiyu Cao Bing Gao Tingting Gong Bo Wang |
author_facet |
Huiyu Cao Bing Gao Tingting Gong Bo Wang |
author_sort |
Huiyu Cao |
title |
Analyzing Changes in Frozen Soil in the Source Region of the Yellow River Using the MODIS Land Surface Temperature Products |
title_short |
Analyzing Changes in Frozen Soil in the Source Region of the Yellow River Using the MODIS Land Surface Temperature Products |
title_full |
Analyzing Changes in Frozen Soil in the Source Region of the Yellow River Using the MODIS Land Surface Temperature Products |
title_fullStr |
Analyzing Changes in Frozen Soil in the Source Region of the Yellow River Using the MODIS Land Surface Temperature Products |
title_full_unstemmed |
Analyzing Changes in Frozen Soil in the Source Region of the Yellow River Using the MODIS Land Surface Temperature Products |
title_sort |
analyzing changes in frozen soil in the source region of the yellow river using the modis land surface temperature products |
publisher |
MDPI AG |
publishDate |
2021 |
url |
https://doi.org/10.3390/rs13020180 https://doaj.org/article/c7a5fe5667ea40e6a0fa15792acd0d07 |
genre |
Active layer thickness permafrost |
genre_facet |
Active layer thickness permafrost |
op_source |
Remote Sensing, Vol 13, Iss 2, p 180 (2021) |
op_relation |
https://www.mdpi.com/2072-4292/13/2/180 https://doaj.org/toc/2072-4292 doi:10.3390/rs13020180 2072-4292 https://doaj.org/article/c7a5fe5667ea40e6a0fa15792acd0d07 |
op_doi |
https://doi.org/10.3390/rs13020180 |
container_title |
Remote Sensing |
container_volume |
13 |
container_issue |
2 |
container_start_page |
180 |
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1787422597498011648 |