the Creative Commons Attribution 4.0 License.
the Creative Commons Attribution 4.0 License.
High-resolution dataset of thermokarst lakes on the Qinghai-Tibetan Plateau
Abstract. The Qinghai-Tibetan Plateau (QTP), the largest high-altitude and low-latitude permafrost zone in the world, has experienced rapid permafrost degradation in recent decades, and one of the most remarkable resulting characteristics is the formation of thermokarst lakes. Such lakes have attracted significant attention because of their ability to regulate carbon cycle, water, and energy fluxes. However, the distribution of thermokarst lakes in this area remains largely unknown, hindering our understanding of the response of permafrost and its carbon feedback to climate change. Here, based on the Google Earth Engine platform, we examined the modern distribution (2018) of thermokarst lakes on the QTP using Sentinel-2A data; for the first time providing the true spatial distribution by using a resolution of 10 m with a relative error of 0–0.5. Results show that the total thermokarst lake area on the QTP is 1730.34 m2 km2, accounting for approximately 4 % of the total water area of lakes and ponds, and that overall thermokarst lake density is 12/100 m2 km2. More specifically, the densities of thermokarst lakes in the land types of alpine desert steppe (16/100 km2) and barren land (17/100 km2) were larger than those of alpine meadows (13/100 km2), alpine steppe (11/100 km2), and wet meadow (11/100 km2). These findings provide a scientific foundation for future investigations into the effects of climate change on the permafrost environment and carbon emissions from rapidly developing thermokarst landscapes. Data are made available as open access via the National Tibetan Plateau Data Center (Chen et al., 2021) with DOI: 10.11888/Geocry.tpdc.271205 (https://data.tpdc.ac.cn/en/data/c0c05207-568d-41db-ab94-8610bdcdbbe5/).
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RC1: 'Comment on essd-2020-378', Anonymous Referee #1, 05 May 2021
The comment was uploaded in the form of a supplement: https://essd.copernicus.org/preprints/essd-2020-378/essd-2020-378-RC1-supplement.pdf
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AC1: 'Reply on RC1', Xu Chen, 25 May 2021
Thank you for your comments for our work. We apreciate your detailed suggestion. We revised the manuscript according the reviewers’ comments, and we believe the quality of the revised version has been greatly improved.We appreciate your constructive comments. We believe the quality of this manuscript has been highly improved. Meanwhile,we are happy to address additional concerns.
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AC1: 'Reply on RC1', Xu Chen, 25 May 2021
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RC2: 'Comment on essd-2020-378', Anonymous Referee #2, 05 May 2021
The comment was uploaded in the form of a supplement: https://essd.copernicus.org/preprints/essd-2020-378/essd-2020-378-RC2-supplement.pdf
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AC2: 'Reply on RC2', Xu Chen, 25 May 2021
Thank you for your comments for our work. We apreciate your detailed suggestion. We revised the manuscript according the reviewers’ comments, and we believe the quality of the revised version has been greatly improved.We appreciate your constructive comments. Detailed responses to the comments have uploaded as attachments.We believe the quality of this manuscript has been highly improved. Meanwhile,we are happy to address additional concerns.
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AC2: 'Reply on RC2', Xu Chen, 25 May 2021
Status: closed
-
RC1: 'Comment on essd-2020-378', Anonymous Referee #1, 05 May 2021
The comment was uploaded in the form of a supplement: https://essd.copernicus.org/preprints/essd-2020-378/essd-2020-378-RC1-supplement.pdf
-
AC1: 'Reply on RC1', Xu Chen, 25 May 2021
Thank you for your comments for our work. We apreciate your detailed suggestion. We revised the manuscript according the reviewers’ comments, and we believe the quality of the revised version has been greatly improved.We appreciate your constructive comments. We believe the quality of this manuscript has been highly improved. Meanwhile,we are happy to address additional concerns.
-
AC1: 'Reply on RC1', Xu Chen, 25 May 2021
-
RC2: 'Comment on essd-2020-378', Anonymous Referee #2, 05 May 2021
The comment was uploaded in the form of a supplement: https://essd.copernicus.org/preprints/essd-2020-378/essd-2020-378-RC2-supplement.pdf
-
AC2: 'Reply on RC2', Xu Chen, 25 May 2021
Thank you for your comments for our work. We apreciate your detailed suggestion. We revised the manuscript according the reviewers’ comments, and we believe the quality of the revised version has been greatly improved.We appreciate your constructive comments. Detailed responses to the comments have uploaded as attachments.We believe the quality of this manuscript has been highly improved. Meanwhile,we are happy to address additional concerns.
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AC2: 'Reply on RC2', Xu Chen, 25 May 2021
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Cited
5 citations as recorded by crossref.
- Permafrost thaw and thermokarst in the source region of the Yangtze river in the central Tibetan plateau revealed by radar and optical remote sensing L. Wang et al. 10.1002/esp.5969
- Thermokarst lake changes over the past 40 years in the Qinghai–Tibet Plateau, China L. Li et al. 10.3389/fenvs.2022.1051086
- Evaluation of the Performance of CLM5.0 in Soil Hydrothermal Dynamics in Permafrost Regions on the Qinghai–Tibet Plateau S. Yang et al. 10.3390/rs14246228
- Sentinel‐Based Inventory of Thermokarst Lakes and Ponds Across Permafrost Landscapes on the Qinghai‐Tibet Plateau Z. Wei et al. 10.1029/2021EA001950
- Long-term spatio-temporal changes of wetlands in Tibetan Plateau and their response to climate change Y. Li et al. 10.1016/j.jag.2023.103351