Труды сотрудников ИЛ им. В.Н. Сукачева СО РАН

/ L. Orgogozo [et al.] // Permafrost Periglacial Process. - 2019. - Vol. 30, Is. 2. - P75-89, DOI 10.1002/ppp.1995. - Cited References:89. - CALMIP supercomputing center, Grant/Award Number: p12166; Campus France, Grant/Award Number: Kolmogorov No 14.587.21.0036; Russian Science Foundation, Grant/Award Number: 18-17-00237 . - ISSN 1045-6740. - ISSN 1099-1530РУБ Geography, Physical + Geology

Аннотация: To quantify the impact of evapotranspiration phenomena on active layer dynamics in a permafrost-dominated forested watershed in Central Siberia, we performed a numerical cryohydrological study of water and energy transfer using a new open source cryohydrogeology simulator, with two innovative features: spatially distributed, mechanistic handling of evapotranspiration and inclusion of a numerical tool in a high- performance computing toolbox for numerical simulation of fluid dynamics, OpenFOAM. In this region, the heterogeneity of solar exposure leads to strong contrasts in vegetation cover, which constitutes the main source of variability in hydrological conditions at the landscape scale. The uncalibrated numerical results reproduce reasonably well the measured soil temperature profiles and the dynamics of infiltrated waters revealed by previous biogeochemical studies. The impacts of thermo-hydrological processes on water fluxes from the soils to the stream are discussed through a comparison between numerical results and field data. The impact of evapotranspiration on water fluxes is studied numerically, and highlights a strong sensitivity to variability in rooting depth and corresponding evapotranspiration at slopes of different aspect in the catchment.

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Держатели документа:
Univ Toulouse, Observ Midi Pyrenees, GET, UMR CNRS UR IRD UPS 5563 234, 14 Ave Edouard Belin, F-31400 Toulouse, France.
Russian Acad Sci, Siberian Branch, VN Sukachev Inst Forest, Krasnoyarsk, Russia.
Tomsk State Univ, BIO GEO CLIM Lab, Tomsk, Russia.
Univ Paris Saclay, Lab Sci Climat & Environm, IPSL LSCE, UMR CNRS CEA UVSQ 8212, Gif Sur Yvette, France.
Univ Toulouse, INPT, UPS, IMFT, Toulouse, France.
CNRS, IMFT, Toulouse, France.

Доп.точки доступа:
Orgogozo, Laurent; Prokushkin, Anatoly S.; Pokrovsky, Oleg S.; Grenier, Christophe; Quintard, Michel; Viers, Jerome; Audry, Stephane; CALMIP supercomputing center [p12166]; Campus France [14.587.21.0036]; Russian Science Foundation [18-17-00237]