Hubex ; satellite remote sensing ; energy balance components 淮河流域试验hubex卫星遥感能量平衡各分量
Load balancing component 加载平衡组件。
To improve understanding of the processes of heterogeneous land surface - atmosphere interaction , the utilization of satelli te remote sensing is indispensadle . in this paper , with the aid of satellite remote sensing and fiend observational data which observed during intensive observation of huaihe river bain energy and water cycle experiment hubex in 1998 , the surface albedo , ndvi normalized difference vegetaton index and surface temperature in regional scale of hubex could be derived . then , the distribution of regional energy balance components could be estimated . this wor provided the physical foundation for the numerical simulation of the huaihe river basin energy and water pro cesses , and is important for us to further analyze the regional distribution of surface characteristic parameters ad energy balance components with the change of the weather situation in hubex in 1998 . our work is still in a developing stage , some methods of retrieval in the paper should be improved further 利用1998年淮河流域加密观测试验hubex iop期间的资料,进行淮河流域能量平衡的参数化方案的研究,用noaa卫星的avhrr资料建立了试验区地表特征参数及能量平衡各分量的参数化方程,并对卫星遥感反演结果和试验观测值进行了对比,为淮河流域能量和水循环的数值模拟提供了物理依据。
Some variables regional distribution over south ningxia is given out in the course of evapotranspiration estimation : the regional distribution of surface characteristic parameters ( normalzed difference vegetation index , surface albedo , surface temperature ) , radiation balance components ( surface absorbed shortwave radiation , surface longwave radiation , atmospheric counter radiation , net radiation ) , surface heat and balance components ( soil heat flux , sensible heat flux , latent heat flux ) 估算区域蒸发(散)量的过程中,得到许多有意义的量:地表特征参数(植被指数ndvi 、地表反射率、地表温度) ;地表辐射平衡各量(地表短波吸收辐射、地表长波辐射、大气逆辐射、地表净辐射) ;地表热量平衡各量(土壤热通量、显热通量、潜热通量) 。