Quantification of a full year water balance of a thermokarst lake in East Siberia based on field measurements
Thermokarst lakes and basins are major components of the ice-rich permafrost landscapes in East Siberian coastal regions. One of the major control factors of thermokarst lake development is the local water balance. Variations in environmental and climate conditions due to climate change might have s...
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ftawi:oai:epic.awi.de:41165 2023-05-15T13:03:31+02:00 Quantification of a full year water balance of a thermokarst lake in East Siberia based on field measurements Bornemann, Niko Niemann, Sascha Stettner, Samuel Morgenstern, Anne Langer, Moritz Boike, Julia 2016-06 application/pdf https://epic.awi.de/id/eprint/41165/ https://epic.awi.de/id/eprint/41165/1/Bornemann_et_al_2016_ICOP_conference.pdf https://hdl.handle.net/10013/epic.48566 https://hdl.handle.net/10013/epic.48566.d001 unknown https://epic.awi.de/id/eprint/41165/1/Bornemann_et_al_2016_ICOP_conference.pdf https://hdl.handle.net/10013/epic.48566.d001 Bornemann, N. orcid:0000-0001-5415-509X , Niemann, S. , Stettner, S. orcid:0000-0001-5278-7931 , Morgenstern, A. orcid:0000-0002-6466-7571 , Langer, M. orcid:0000-0002-2704-3655 and Boike, J. orcid:0000-0002-5875-2112 , Alfred Wegener Institute Helmholtz Centre for Polar and Marine Research, Humboldt-Universität zu Berlin (2016) Quantification of a full year water balance of a thermokarst lake in East Siberia based on field measurements , XI. International Conference on Permafrost, Potsdam, 20 June 2016 - 24 June 2016 . hdl:10013/epic.48566 EPIC3XI. International Conference on Permafrost, Potsdam, 2016-06-20-2016-06-24 Conference notRev 2016 ftawi 2021-12-24T15:41:40Z Thermokarst lakes and basins are major components of the ice-rich permafrost landscapes in East Siberian coastal regions. One of the major control factors of thermokarst lake development is the local water balance. Variations in environmental and climate conditions due to climate change might have severe impacts on the water balance. Higher evapotranspiration and an increased active layer thickness could enhance the water flow and thus favor the thermal degradation of the tundra landscape. In this study we quantified precipitation, evapotranspiration, runoff and storage of a thermokarst lake on Kurungnakh island. The island is located in the central part of the Lena River delta, northern Siberia and underlain by continuous, ice-rich permafrost to about 400-600m depth. The investigated lake has a surface area of approximately 1.2 km² with a maximum depth of about 8 m and a volume of about 4x106 m3. Field measurements of the water balance components were conducted in the period from August 2014 to end of July 2015. Precipitation was recorded by an automatic rain gauge, at a nearby site on Kurungnakh Island. The outflow of the lake was determined with an automatic sensor on a RBC-flume. The evaporation of the thermokarst lake was calculated by using water temperature of the lake, climate data from weather stations on Kurungnakh Island and the neighboring Samoylov Island. The lake water storage was measured using an automated water level sensor. A previous study (Niemann, 2014) investigated only the summer balance (August 2013) of the lake and showed that evaporation dominated the water balance during this time period. Here we analyzed the seasonal and annual water balance components (precipitation, evaporation, runoff, change in storage) of the lake and the contribution of snow cover to the water storage. Conference Object Active layer thickness Ice lena river permafrost Thermokarst Tundra Siberia Alfred Wegener Institute for Polar- and Marine Research (AWI): ePIC (electronic Publication Information Center) |
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Alfred Wegener Institute for Polar- and Marine Research (AWI): ePIC (electronic Publication Information Center) |
op_collection_id |
ftawi |
language |
unknown |
description |
Thermokarst lakes and basins are major components of the ice-rich permafrost landscapes in East Siberian coastal regions. One of the major control factors of thermokarst lake development is the local water balance. Variations in environmental and climate conditions due to climate change might have severe impacts on the water balance. Higher evapotranspiration and an increased active layer thickness could enhance the water flow and thus favor the thermal degradation of the tundra landscape. In this study we quantified precipitation, evapotranspiration, runoff and storage of a thermokarst lake on Kurungnakh island. The island is located in the central part of the Lena River delta, northern Siberia and underlain by continuous, ice-rich permafrost to about 400-600m depth. The investigated lake has a surface area of approximately 1.2 km² with a maximum depth of about 8 m and a volume of about 4x106 m3. Field measurements of the water balance components were conducted in the period from August 2014 to end of July 2015. Precipitation was recorded by an automatic rain gauge, at a nearby site on Kurungnakh Island. The outflow of the lake was determined with an automatic sensor on a RBC-flume. The evaporation of the thermokarst lake was calculated by using water temperature of the lake, climate data from weather stations on Kurungnakh Island and the neighboring Samoylov Island. The lake water storage was measured using an automated water level sensor. A previous study (Niemann, 2014) investigated only the summer balance (August 2013) of the lake and showed that evaporation dominated the water balance during this time period. Here we analyzed the seasonal and annual water balance components (precipitation, evaporation, runoff, change in storage) of the lake and the contribution of snow cover to the water storage. |
format |
Conference Object |
author |
Bornemann, Niko Niemann, Sascha Stettner, Samuel Morgenstern, Anne Langer, Moritz Boike, Julia |
spellingShingle |
Bornemann, Niko Niemann, Sascha Stettner, Samuel Morgenstern, Anne Langer, Moritz Boike, Julia Quantification of a full year water balance of a thermokarst lake in East Siberia based on field measurements |
author_facet |
Bornemann, Niko Niemann, Sascha Stettner, Samuel Morgenstern, Anne Langer, Moritz Boike, Julia |
author_sort |
Bornemann, Niko |
title |
Quantification of a full year water balance of a thermokarst lake in East Siberia based on field measurements |
title_short |
Quantification of a full year water balance of a thermokarst lake in East Siberia based on field measurements |
title_full |
Quantification of a full year water balance of a thermokarst lake in East Siberia based on field measurements |
title_fullStr |
Quantification of a full year water balance of a thermokarst lake in East Siberia based on field measurements |
title_full_unstemmed |
Quantification of a full year water balance of a thermokarst lake in East Siberia based on field measurements |
title_sort |
quantification of a full year water balance of a thermokarst lake in east siberia based on field measurements |
publishDate |
2016 |
url |
https://epic.awi.de/id/eprint/41165/ https://epic.awi.de/id/eprint/41165/1/Bornemann_et_al_2016_ICOP_conference.pdf https://hdl.handle.net/10013/epic.48566 https://hdl.handle.net/10013/epic.48566.d001 |
genre |
Active layer thickness Ice lena river permafrost Thermokarst Tundra Siberia |
genre_facet |
Active layer thickness Ice lena river permafrost Thermokarst Tundra Siberia |
op_source |
EPIC3XI. International Conference on Permafrost, Potsdam, 2016-06-20-2016-06-24 |
op_relation |
https://epic.awi.de/id/eprint/41165/1/Bornemann_et_al_2016_ICOP_conference.pdf https://hdl.handle.net/10013/epic.48566.d001 Bornemann, N. orcid:0000-0001-5415-509X , Niemann, S. , Stettner, S. orcid:0000-0001-5278-7931 , Morgenstern, A. orcid:0000-0002-6466-7571 , Langer, M. orcid:0000-0002-2704-3655 and Boike, J. orcid:0000-0002-5875-2112 , Alfred Wegener Institute Helmholtz Centre for Polar and Marine Research, Humboldt-Universität zu Berlin (2016) Quantification of a full year water balance of a thermokarst lake in East Siberia based on field measurements , XI. International Conference on Permafrost, Potsdam, 20 June 2016 - 24 June 2016 . hdl:10013/epic.48566 |
_version_ |
1766338515918913536 |