publication . Article . Other literature type . 2012

Calibration of aerodynamic roughness over the Tibetan Plateau with Ensemble Kalman Filter analysed heat flux

Ju Lee;
Open Access English
  • Published: 20 Nov 2012 Journal: Hydrology and Earth System Sciences (issn: 1027-5606, eissn: 1607-7938, Copyright policy)
  • Publisher: Copernicus Publications
Abstract
<strong>Abstract.</strong> Aerodynamic roughness height (<i>Z</i><sub>om</sub>) is a key parameter required in several land surface hydrological models, since errors in heat flux estimation are largely dependent on optimization of this input. Despite its significance, it remains an uncertain parameter which is not readily determined. This is mostly because of non-linear relationship in Monin-Obukhov similarity (MOS) equations and uncertainty of vertical characteristic of vegetation in a large scale. Previous studies often determined aerodynamic roughness using a minimization of cost function over MOS relationship or linear reg...
Subjects
free text keywords: Technology, T, Environmental technology. Sanitary engineering, TD1-1066, Geography. Anthropology. Recreation, G, Environmental sciences, GE1-350
Funded by
EC| ACQWA
Project
ACQWA
Assessment of Climatic change and impacts on the Quantity and quality of Water
  • Funder: European Commission (EC)
  • Project Code: 212250
  • Funding stream: FP7 | SP1 | ENV
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