New Remote Sensing Data on the Potential Presence of Permafrost in the Deosai Plateau in the Himalayan Portion of Pakistan
In this study, the presence of permafrost layer and its potential variation in the last three decades will be examined through the multitemporal analysis of satellite data in the area of the Deosai Plateau (Northern Pakistan). In the area, only global maps on the potential presence of permafrost lay...
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ftmdpi:oai:mdpi.com:/2072-4292/15/7/1800/ 2023-08-20T04:09:09+02:00 New Remote Sensing Data on the Potential Presence of Permafrost in the Deosai Plateau in the Himalayan Portion of Pakistan Maria Teresa Melis Francesco Gabriele Dessì Marco Casu agris 2023-03-28 application/pdf https://doi.org/10.3390/rs15071800 EN eng Multidisciplinary Digital Publishing Institute https://dx.doi.org/10.3390/rs15071800 https://creativecommons.org/licenses/by/4.0/ Remote Sensing; Volume 15; Issue 7; Pages: 1800 Sentinel 1 Landsat Deosai National Park Himalaya range permafrost climate change wetland Text 2023 ftmdpi https://doi.org/10.3390/rs15071800 2023-08-01T09:28:02Z In this study, the presence of permafrost layer and its potential variation in the last three decades will be examined through the multitemporal analysis of satellite data in the area of the Deosai Plateau (Northern Pakistan). In the area, only global maps on the potential presence of permafrost layer are known. The results are based on the evaluation of variation of the number and water levels of the small lakes, and the changes of the extensions of the wetlands. The adopted methodology is based on the use of spectral indices and visual interpretation of a time-series data of Landsat images in the range 1990–2019, and on the processing of radar data from Sentinel 1 satellites, adopting new methods to extract the vertical displacement. The main findings are: (i) a high temporal dynamic of the number and surface areas of small lakes, and (ii) the evidence of a subduction in a wetland area (Black Hole), coherent with its extension, and suggesting the potential presence of a permafrost layer slowly degrading. This analysis can play a useful role on the management of the Deosai National Park (DNP), adopting careful measures for the human activities inside the park. Text permafrost MDPI Open Access Publishing Remote Sensing 15 7 1800 |
institution |
Open Polar |
collection |
MDPI Open Access Publishing |
op_collection_id |
ftmdpi |
language |
English |
topic |
Sentinel 1 Landsat Deosai National Park Himalaya range permafrost climate change wetland |
spellingShingle |
Sentinel 1 Landsat Deosai National Park Himalaya range permafrost climate change wetland Maria Teresa Melis Francesco Gabriele Dessì Marco Casu New Remote Sensing Data on the Potential Presence of Permafrost in the Deosai Plateau in the Himalayan Portion of Pakistan |
topic_facet |
Sentinel 1 Landsat Deosai National Park Himalaya range permafrost climate change wetland |
description |
In this study, the presence of permafrost layer and its potential variation in the last three decades will be examined through the multitemporal analysis of satellite data in the area of the Deosai Plateau (Northern Pakistan). In the area, only global maps on the potential presence of permafrost layer are known. The results are based on the evaluation of variation of the number and water levels of the small lakes, and the changes of the extensions of the wetlands. The adopted methodology is based on the use of spectral indices and visual interpretation of a time-series data of Landsat images in the range 1990–2019, and on the processing of radar data from Sentinel 1 satellites, adopting new methods to extract the vertical displacement. The main findings are: (i) a high temporal dynamic of the number and surface areas of small lakes, and (ii) the evidence of a subduction in a wetland area (Black Hole), coherent with its extension, and suggesting the potential presence of a permafrost layer slowly degrading. This analysis can play a useful role on the management of the Deosai National Park (DNP), adopting careful measures for the human activities inside the park. |
format |
Text |
author |
Maria Teresa Melis Francesco Gabriele Dessì Marco Casu |
author_facet |
Maria Teresa Melis Francesco Gabriele Dessì Marco Casu |
author_sort |
Maria Teresa Melis |
title |
New Remote Sensing Data on the Potential Presence of Permafrost in the Deosai Plateau in the Himalayan Portion of Pakistan |
title_short |
New Remote Sensing Data on the Potential Presence of Permafrost in the Deosai Plateau in the Himalayan Portion of Pakistan |
title_full |
New Remote Sensing Data on the Potential Presence of Permafrost in the Deosai Plateau in the Himalayan Portion of Pakistan |
title_fullStr |
New Remote Sensing Data on the Potential Presence of Permafrost in the Deosai Plateau in the Himalayan Portion of Pakistan |
title_full_unstemmed |
New Remote Sensing Data on the Potential Presence of Permafrost in the Deosai Plateau in the Himalayan Portion of Pakistan |
title_sort |
new remote sensing data on the potential presence of permafrost in the deosai plateau in the himalayan portion of pakistan |
publisher |
Multidisciplinary Digital Publishing Institute |
publishDate |
2023 |
url |
https://doi.org/10.3390/rs15071800 |
op_coverage |
agris |
genre |
permafrost |
genre_facet |
permafrost |
op_source |
Remote Sensing; Volume 15; Issue 7; Pages: 1800 |
op_relation |
https://dx.doi.org/10.3390/rs15071800 |
op_rights |
https://creativecommons.org/licenses/by/4.0/ |
op_doi |
https://doi.org/10.3390/rs15071800 |
container_title |
Remote Sensing |
container_volume |
15 |
container_issue |
7 |
container_start_page |
1800 |
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