Minor contribution of small thaw ponds to the pools of carbon and methane in the inland waters of the permafrost-affected part of the Western Siberian Lowland
Despite the potential importance of small (< 1000 m ^2 ) thaw ponds and thermokarst lakes in greenhouse gas (GHG) emissions from inland waters of high latitude and boreal regions, these features have not been fully inventoried and the volume of GHG and carbon in thermokarst lakes remains poorly c...
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Online Access: | https://doi.org/10.1088/1748-9326/aab046 https://doaj.org/article/1ec4ddeacddf426f8aeb833279e50400 |
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ftdoajarticles:oai:doaj.org/article:1ec4ddeacddf426f8aeb833279e50400 2023-09-05T13:22:29+02:00 Minor contribution of small thaw ponds to the pools of carbon and methane in the inland waters of the permafrost-affected part of the Western Siberian Lowland Y M Polishchuk A N Bogdanov I N Muratov V Y Polishchuk A Lim R M Manasypov L S Shirokova O S Pokrovsky 2018-01-01T00:00:00Z https://doi.org/10.1088/1748-9326/aab046 https://doaj.org/article/1ec4ddeacddf426f8aeb833279e50400 EN eng IOP Publishing https://doi.org/10.1088/1748-9326/aab046 https://doaj.org/toc/1748-9326 doi:10.1088/1748-9326/aab046 1748-9326 https://doaj.org/article/1ec4ddeacddf426f8aeb833279e50400 Environmental Research Letters, Vol 13, Iss 4, p 045002 (2018) permafrost geoinformation systems lake size-distribution space images greenhouse gases emission Environmental technology. Sanitary engineering TD1-1066 Environmental sciences GE1-350 Science Q Physics QC1-999 article 2018 ftdoajarticles https://doi.org/10.1088/1748-9326/aab046 2023-08-13T00:37:37Z Despite the potential importance of small (< 1000 m ^2 ) thaw ponds and thermokarst lakes in greenhouse gas (GHG) emissions from inland waters of high latitude and boreal regions, these features have not been fully inventoried and the volume of GHG and carbon in thermokarst lakes remains poorly constrained. This is especially true for the vast Western Siberia Lowland (WSL) which is subject to strong thermokarst activity. We assessed the number of thermokarst lakes and their size distribution for the permafrost-affected WSL territory based on a combination of medium-resolution Landsat-8 images and high-resolution Kanopus-V scenes on 78 test sites across the WSL in a wide range of lake sizes (from 20 to 2 × 10 ^8 m ^2 ). The results were in fair agreement with other published data for world lakes including those in circum-polar regions. Based on available measurements of CH _4 , CO _2 , and dissolved organic carbon (DOC) in thermokarst lakes and thaw ponds of the permafrost-affected part of the WSL, we found an inverse relationship between lake size and concentration, with concentrations of GHGs and DOC being highest in small thaw ponds. However, since these small ponds represent only a tiny fraction of the landscape (i.e. ~1.5% of the total lake area), their contribution to the total pool of GHG and DOC in inland lentic water of the permafrost-affected part of the WSL is less than 2%. As such, despite high concentrations of DOC and GHG in small ponds, their role in overall C storage can be negated. Ongoing lake drainage due to climate warming and permafrost thaw in the WSL may lead to a decrease in GHG emission potential from inland waters and DOC release from lakes to rivers. Article in Journal/Newspaper permafrost Thermokarst Siberia Directory of Open Access Journals: DOAJ Articles Environmental Research Letters 13 4 045002 |
institution |
Open Polar |
collection |
Directory of Open Access Journals: DOAJ Articles |
op_collection_id |
ftdoajarticles |
language |
English |
topic |
permafrost geoinformation systems lake size-distribution space images greenhouse gases emission Environmental technology. Sanitary engineering TD1-1066 Environmental sciences GE1-350 Science Q Physics QC1-999 |
spellingShingle |
permafrost geoinformation systems lake size-distribution space images greenhouse gases emission Environmental technology. Sanitary engineering TD1-1066 Environmental sciences GE1-350 Science Q Physics QC1-999 Y M Polishchuk A N Bogdanov I N Muratov V Y Polishchuk A Lim R M Manasypov L S Shirokova O S Pokrovsky Minor contribution of small thaw ponds to the pools of carbon and methane in the inland waters of the permafrost-affected part of the Western Siberian Lowland |
topic_facet |
permafrost geoinformation systems lake size-distribution space images greenhouse gases emission Environmental technology. Sanitary engineering TD1-1066 Environmental sciences GE1-350 Science Q Physics QC1-999 |
description |
Despite the potential importance of small (< 1000 m ^2 ) thaw ponds and thermokarst lakes in greenhouse gas (GHG) emissions from inland waters of high latitude and boreal regions, these features have not been fully inventoried and the volume of GHG and carbon in thermokarst lakes remains poorly constrained. This is especially true for the vast Western Siberia Lowland (WSL) which is subject to strong thermokarst activity. We assessed the number of thermokarst lakes and their size distribution for the permafrost-affected WSL territory based on a combination of medium-resolution Landsat-8 images and high-resolution Kanopus-V scenes on 78 test sites across the WSL in a wide range of lake sizes (from 20 to 2 × 10 ^8 m ^2 ). The results were in fair agreement with other published data for world lakes including those in circum-polar regions. Based on available measurements of CH _4 , CO _2 , and dissolved organic carbon (DOC) in thermokarst lakes and thaw ponds of the permafrost-affected part of the WSL, we found an inverse relationship between lake size and concentration, with concentrations of GHGs and DOC being highest in small thaw ponds. However, since these small ponds represent only a tiny fraction of the landscape (i.e. ~1.5% of the total lake area), their contribution to the total pool of GHG and DOC in inland lentic water of the permafrost-affected part of the WSL is less than 2%. As such, despite high concentrations of DOC and GHG in small ponds, their role in overall C storage can be negated. Ongoing lake drainage due to climate warming and permafrost thaw in the WSL may lead to a decrease in GHG emission potential from inland waters and DOC release from lakes to rivers. |
format |
Article in Journal/Newspaper |
author |
Y M Polishchuk A N Bogdanov I N Muratov V Y Polishchuk A Lim R M Manasypov L S Shirokova O S Pokrovsky |
author_facet |
Y M Polishchuk A N Bogdanov I N Muratov V Y Polishchuk A Lim R M Manasypov L S Shirokova O S Pokrovsky |
author_sort |
Y M Polishchuk |
title |
Minor contribution of small thaw ponds to the pools of carbon and methane in the inland waters of the permafrost-affected part of the Western Siberian Lowland |
title_short |
Minor contribution of small thaw ponds to the pools of carbon and methane in the inland waters of the permafrost-affected part of the Western Siberian Lowland |
title_full |
Minor contribution of small thaw ponds to the pools of carbon and methane in the inland waters of the permafrost-affected part of the Western Siberian Lowland |
title_fullStr |
Minor contribution of small thaw ponds to the pools of carbon and methane in the inland waters of the permafrost-affected part of the Western Siberian Lowland |
title_full_unstemmed |
Minor contribution of small thaw ponds to the pools of carbon and methane in the inland waters of the permafrost-affected part of the Western Siberian Lowland |
title_sort |
minor contribution of small thaw ponds to the pools of carbon and methane in the inland waters of the permafrost-affected part of the western siberian lowland |
publisher |
IOP Publishing |
publishDate |
2018 |
url |
https://doi.org/10.1088/1748-9326/aab046 https://doaj.org/article/1ec4ddeacddf426f8aeb833279e50400 |
genre |
permafrost Thermokarst Siberia |
genre_facet |
permafrost Thermokarst Siberia |
op_source |
Environmental Research Letters, Vol 13, Iss 4, p 045002 (2018) |
op_relation |
https://doi.org/10.1088/1748-9326/aab046 https://doaj.org/toc/1748-9326 doi:10.1088/1748-9326/aab046 1748-9326 https://doaj.org/article/1ec4ddeacddf426f8aeb833279e50400 |
op_doi |
https://doi.org/10.1088/1748-9326/aab046 |
container_title |
Environmental Research Letters |
container_volume |
13 |
container_issue |
4 |
container_start_page |
045002 |
_version_ |
1776203010404253696 |