Gerken, T; Babel, W; Hoffmann, A; Biermann, T; Herzog, M; Friend, AD; Li, M; Ma, Y; Foken, T; Graf, HF: Turbulent flux modelling with a simple 2-layer soil model and extrapolated surface temperature applied at Nam Co Lake basin on the Tibetan Plateau, Hydrology and Earth System Sciences, 16, 1095-1110 (2012), doi:10.5194/hess-16-1095-2012 [Link]
Abstract:

This paper introduces a surface model with two soil-layers for use in a high-resolution circulation model that has been modified with an extrapolated surface temperature, to be used for the calculation of turbulent fluxes. A quadratic temperature profile based on the layer mean and base temperature is assumed in each layer and extended to the surface. The model is tested at two sites on the Tibetan Plateau near Nam Co Lake during four days during the 2009 Monsoon season. In comparison to a two-layer model without explicit surface temperature estimate, there is a greatly reduced delay in diurnal flux cycles and the modelled surface temperature is much closer to observations. Comparison with a SVAT model and eddy covariance measurements shows an overall reasonable model performance based on RMSD and cross correlation comparisons between the modified and original model. A potential limitation of the model is the need for careful initialisation of the initial soil temperature profile, that requires field measurements. We show that the modified model is capable of reproducing fluxes of similar magnitudes and dynamics when compared to more complex methods chosen as a reference.

Aktuelle Termine


BayCEER-Kolloquium:
Do. 18.04.2024
Survival, 'dormancy', and resuscitation of microorganisms in water-limited environments: insights from coastal salt flats and desert soil crusts
Do. 18.04.2024
The Canvas of Change: Creative Marketing for Behaviour Change, Sustainability and Social Good
BayCEER Short Courses:
Di. 16.04.2024 aktuell
Geographical information system and R environment for conservation biology
Ökologisch-Botanischer Garten:
Fr. 19.04.2024
Führung | Gesteine im Ökologisch-Botanischen Garten
So. 21.04.2024
Führung | Den ÖBG kennenlernen: Allgemeine Gartenführung
Wetter Versuchsflächen
Luftdruck (356m): 962.5 hPa
Lufttemperatur: 3.8 °C
Niederschlag: 0.4 mm/24h
Sonnenschein: <1 h/d

...mehr
Lufttemperatur: 0.3 °C
Niederschlag: 2.0 mm/24h

...mehr
Diese Webseite verwendet Cookies. weitere Informationen