摘要
以黄河源区为研究区域,利用我国静止气象卫星(FY-2D)及极轨气象卫星(FY-3A)资料,估算黄河源区一天中不同时刻的净辐射辐照度的空间分布。在晴天条件下,利用计算的向下太阳辐射照度,结合卫星遥感资料估算的地表反照率,得出地表太阳辐射收支。利用卫星遥感估算地表发射率和地表温度资料,结合地面观测站的气象观测资料,得到大气向下的长波辐射和地面向上的长波辐射值。在阴天条件下,借助FY-2D云顶的反照率资料,根据太阳辐射在大气中的衰减过程,推求透射比系数,进而得出阴天条件下地表净短波辐射照度。
Combining with the geostationary meteorological satellite （FY-2D） data and polar orbit meteorological satellite data, the real-time net radiation on the source region of the Yellow River was estimated. For clear sky condition, solar radiation budget was calculated by using the surface albedo and solar radiation. Combining the surface emissive, surface temperature and ground observation data, the downward long-wave radiation by the atmosphere and surface upward long-wave radiation were obtained. For cloudy conditions, with the aid of TOA data from geo- stationary meteorological satellite and solar radiation attenuation process in the atmosphere, the transmittance coefficient was determined. According to the transmittance, the solar radiation in different cloudy conditions can be calculated.
出处
《太阳能学报》
EI
CAS
CSCD
北大核心
2012年第2期313-320,共8页
Acta Energiae Solaris Sinica
基金
国家重大科学研究计划全球变化研究项目(2010CB951701)
关键词
FY-2D
遥感估算
黄河源区
净辐射辐照度
FY-2D
remote sensing estimation
the water source region of the Yellow River
net radiation
