文献类型：期刊文献

英文题名：Simulation of Forest Evapotranspiration Using Time-Series Parameterization of the Surface Energy Balance System (SEBS) over the Qilian Mountains

作者：Tian, Xin[1,2] van der Tol, Christiaan[2] Su, Zhongbo[2] Li, Zengyuan[1] Chen, Erxue[1] Li, Xin[3] Yan, Min[1] Chen, Xuelong[2] Wang, Xufeng[3] Pan, Xiaoduo[3] Ling, Feilong[4] Li, Chunmei[1] Fan, Wenwu[1,4] Li, Longhui[5]

第一作者：田昕;Tian, Xin

通信作者：Li, ZY[1]

机构：[1]Chinese Acad Forestry, Inst Forest Resource Informat Tech, Beijing 100091, Peoples R China;[2]Univ Twente, Fac Geoinformat Sci & Earth Observat, NL-7500 AA Enschede, Netherlands;[3]Chinese Acad Sci, Cold & Arid Reg Environm & Engn Res Inst, Lanzhou 730000, Peoples R China;[4]Fuzhou Univ, Minist Educ, Key Lab Spatial Data Min & Informat Sharing, Fuzhou 350002, Peoples R China;[5]Univ Technol Sydney, Sch Life Sci, Sydney, NSW 2007, Australia

年份：2015

卷号：7

期号：12

起止页码：15822-15843

外文期刊名：REMOTE SENSING

收录：;EI(收录号：20172203706402);Scopus(收录号：2-s2.0-84997726458);WOS:【SCI-EXPANDED(收录号:WOS:000367534000002)】；

基金：This work was supported by the National Basic Research Program of China (973 Program) under grant 2013CB733404; Fundamental Research Funds for the Central Non-profit Research Institution of IFRIT, CAF under grant IFRIT201302; and the National Natural Science Foundation under grant 41101379. Portions of the ground measurements used for this work were obtained from Heihe Watershed Allied Telemetry Experimental Research (HiWATER). We also thank the joint team for providing measurement support.

语种：英文

外文关键词：roughness length; forest vertical parameters; Surface Energy Balance System (SEBS); evapotranspiration; remote sensing

摘要：We propose a long-term parameterization scheme for two critical parameters, zero- plane displacement height ( d) and aerodynamic roughness length ( z0m), that we further use in the Surface Energy Balance System ( SEBS). A sensitivity analysis of SEBS indicated that these two parameters largely impact the estimated sensible heat and latent heat fluxes. First, we calibrated regression relationships between measured forest vertical parameters ( Lorey's height and the frontal area index ( FAI)) and forest aboveground biomass ( AGB). Next, we derived the interannual Lorey's height and FAI values from our calibrated regression models and corresponding forest AGB dynamics that were converted from interannual carbon fluxes, as simulated from two incorporated ecological models and a 2009 forest basis map These dynamic forest vertical parameters, combined with refined eight- day Global LAnd Surface Satellite ( GLASS) LAI products, were applied to estimate the eight- day d, z0m, and, thus, the heat roughness length ( z0h). The obtained d, z0m and z0h were then used as forcing for the SEBS model in order to simulate long-term forest evapotranspiration ( ET) from 2000 to 2012 within the Qilian Mountains ( QMs). As compared with MODIS, MOD16 products at the eddy covariance ( EC) site, ET estimates from the SEBS agreed much better with EC measurements ( R2 = 0.80 and RMSE = 0.21 mm day (-1)).