Integrating local environmental observations and remote sensing to better understand the life cycle of a thermokarst lake in Arctic Alaska
Integrating local environmental observations and remote sensing to better understand the life cycle of a thermokarst lake in Arctic Alaska
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结合当地环境观测和遥感,更好地了解阿拉斯加北极热岩溶湖的生命周期
DOI:
10.1080/15230430.2023.2195518
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发表时间:
2023
期刊:
影响因子:
--
通讯作者:
Rettelbach, Tabea
中科院分区:
文献类型:
--
作者:
Jones, Benjamin M.;Schaeffer Tessier, Susan;Tessier, Tim;Brubaker, Michael;Brook, Mike;Schaeffer, Jackie;Ward Jones, Melissa K.;Grosse, Guido;Nitze, Ingmar;Rettelbach, Tabea
On 29 June 2022, local observers reported the drainage of a 0.5 ha lake near Qikiqtaġruk (Kotzebue), Alaska, that prompted this collaborative study on the life cycle of a thermokarst lake in the Arctic. Prior to its drainage, the lake expanded from 0.13 ha in 1951 to 0.54 ha in 2021 at lateral rates that ranged from 0.25 to 0.35 m/year. During the drainage event, we estimate that 18,500 m3of water drained from the lake into Kotzebue Sound, forming a 125-m-long thermo-erosional gully that incised 2 to 14 m in ice-rich permafrost. Between 29 June and 18 August 2022, the drainage gully expanded from 1 m to >10 m wide, mobilizing ~8,500 m3of material through erosion and thaw. By reconstructing a pre-lake disturbance terrain model, we show that thaw subsidence occurs rapidly (0.78 m/year) upon transition from tundra to lake but that over a seventy-year period it slows to 0.12 m/year. The combination of multiple remote sensing tools and local environmental observations provided a rich data set that allowed us to assess rates of lake expansion relative to rates of sub-lake permafrost thaw subsidence as well as hypothesizing about the potential role of beavers in arctic lake drainage.
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DOI:
--
发表时间:
2020
期刊:
影响因子:
--
作者:
C. Burn
通讯作者:
C. Burn
影响因子:
4
作者:
L. Brosius;K. W. Anthony;C. Treat;J. Lenz;Miriam C. Jones;M. Bret-Harte;G. Grosse
通讯作者:
L. Brosius;K. W. Anthony;C. Treat;J. Lenz;Miriam C. Jones;M. Bret-Harte;G. Grosse
DOI:
10.18352/ijc.698
发表时间:
2017
期刊:
The International Journal of the Commons
影响因子:
--
作者:
P. Fauchald;V. Hausner;Jennifer I. Schmidt;D. Clark
通讯作者:
D. Clark
DOI:
--
发表时间:
2018
期刊:
IOP Conference Series: Earth and Environment
影响因子:
--
作者:
I. Rozhkova;V. K. Popkov;P. Mitchell;S. Kirpotin
通讯作者:
S. Kirpotin
影响因子:
42.1
作者:
B. Jones;G. Grosse;L. Farquharson;P. Roy-Léveillée;A. Veremeeva;M. Kanevskiy;B. Gaglioti;A. Breen;A. Parsekian;M. Ulrich;K. Hinkel
通讯作者:
B. Jones;G. Grosse;L. Farquharson;P. Roy-Léveillée;A. Veremeeva;M. Kanevskiy;B. Gaglioti;A. Breen;A. Parsekian;M. Ulrich;K. Hinkel