Numerical simulation of methane emission from subarctic lake in Komi Republic (Russia)

Guseva, S.; Stepanenko, V.; Shurpali, N.; Marushchak, M.E.; Biasi, C.; Lind, S.E.

Авторы: Guseva S., Stepanenko V., Shurpali N., Marushchak M.E., Biasi C., Lind S.E.
Журнал: Geography, Environment, Sustainability
Том: 2
Номер: 9
Год издания: 2016
Издательство: Издательство Русского географического общества
Местоположение издательства: Москва
Первая страница: 58
Последняя страница: 74
DOI: 10.15356/2071-9388_02v09_2016_05
Аннотация: During last decades, a special attention has been paid to methane emission from lakes [Bastviken et al., 2004; Wik et al., 2016 and etc.] as one of the significant sources of this important greenhouse gas to the atmosphere. However, attempts to simulate methane production and efflux at the air-water interface are scarce [Stepanenko et al., 2011; Tan et al., 2015a; Tan et al., 2015b] and models proposed so far need further validation using observation datasets. In this study, we use the 1D+ numerical model LAKE [Stepanenko et al., 2011; Stepanenko et al., 2016]. The LAKE model was applied to a small subarctic lake in the Seida study site (Komi Republic, Russia) for identification of the key factors influencing the surface CH4flux and its concentration in the lake. We carried out a calibration of biogeochemical constants involving qualitative considerations of the character of biogeochemical and physical processes occurring in the lake and aiming at a satisfactory agreement with observations, performed by the University of Eastern Finland (UEF) [Lind et al., 2009; Marushchak et al., 2016]. Comparing our model calibration results to earlier studies suggest that the crucial parameter of the model -methane production rate constant (Pnew,0)—has similar values for lakes of different types in high latitudes.
Добавил в систему: Гусева Софья Павловна

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Numerical simulation of methane emission from subarctic lake in Komi Republic (Russia)статья

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