Advanced

Methane emissions from permafrost thaw lakes limited by lake drainage

van Huissteden, J.; Berrittella, C.; Parmentier, Frans-Jan LU ; Mi, Y.; Maximov, T. C. and Dolman, A. J. (2011) In Nature Climate Change 1(2). p.119-123
Abstract
Thaw lakes in permafrost areas are sources of the strong greenhouse gas methane(1-5). They develop mostly in sedimentary lowlands with permafrost and a high excess ground ice volume, resulting in large areas covered with lakes and drained thaw-lake basins (DTLBs; refs 6,7). Their expansion is enhanced by climate warming, which boosts methane emission and contributes a positive feedback to future climate change(3,4,8). Modelling of thaw-lake growth is necessary to quantify this feedback. Here, we present a two-dimensional landscape-scale model that includes the entire life cycle of thaw lakes; initiation, expansion, drainage and eventual re-initiation. Application of our model to past and future lake expansion in northern Siberia shows that... (More)
Thaw lakes in permafrost areas are sources of the strong greenhouse gas methane(1-5). They develop mostly in sedimentary lowlands with permafrost and a high excess ground ice volume, resulting in large areas covered with lakes and drained thaw-lake basins (DTLBs; refs 6,7). Their expansion is enhanced by climate warming, which boosts methane emission and contributes a positive feedback to future climate change(3,4,8). Modelling of thaw-lake growth is necessary to quantify this feedback. Here, we present a two-dimensional landscape-scale model that includes the entire life cycle of thaw lakes; initiation, expansion, drainage and eventual re-initiation. Application of our model to past and future lake expansion in northern Siberia shows that lake drainage strongly limits lake expansion, even under conditions of continuous permafrost. Our results suggest that methane emissions from thaw lakes in Siberia are an order of magnitude less alarming than previously suggested, although predicted lake expansion will still profoundly affect permafrost ecosystems and infrastructure. (Less)
Please use this url to cite or link to this publication:
author
organization
publishing date
type
Contribution to journal
publication status
published
subject
in
Nature Climate Change
volume
1
issue
2
pages
119 - 123
publisher
Nature Publishing Group
external identifiers
  • wos:000293718200031
  • scopus:80052577905
ISSN
1758-6798
DOI
10.1038/NCLIMATE1101
language
English
LU publication?
yes
id
539dd616-3d8f-42f0-9aef-671ed52dce5e (old id 2162839)
date added to LUP
2011-09-20 12:19:13
date last changed
2017-11-19 03:01:40
@article{539dd616-3d8f-42f0-9aef-671ed52dce5e,
  abstract     = {Thaw lakes in permafrost areas are sources of the strong greenhouse gas methane(1-5). They develop mostly in sedimentary lowlands with permafrost and a high excess ground ice volume, resulting in large areas covered with lakes and drained thaw-lake basins (DTLBs; refs 6,7). Their expansion is enhanced by climate warming, which boosts methane emission and contributes a positive feedback to future climate change(3,4,8). Modelling of thaw-lake growth is necessary to quantify this feedback. Here, we present a two-dimensional landscape-scale model that includes the entire life cycle of thaw lakes; initiation, expansion, drainage and eventual re-initiation. Application of our model to past and future lake expansion in northern Siberia shows that lake drainage strongly limits lake expansion, even under conditions of continuous permafrost. Our results suggest that methane emissions from thaw lakes in Siberia are an order of magnitude less alarming than previously suggested, although predicted lake expansion will still profoundly affect permafrost ecosystems and infrastructure.},
  author       = {van Huissteden, J. and Berrittella, C. and Parmentier, Frans-Jan and Mi, Y. and Maximov, T. C. and Dolman, A. J.},
  issn         = {1758-6798},
  language     = {eng},
  number       = {2},
  pages        = {119--123},
  publisher    = {Nature Publishing Group},
  series       = {Nature Climate Change},
  title        = {Methane emissions from permafrost thaw lakes limited by lake drainage},
  url          = {http://dx.doi.org/10.1038/NCLIMATE1101},
  volume       = {1},
  year         = {2011},
}