基于风云卫星数据的新疆太阳能资源潜力评价方法研究

SOLAR ENERGY POTENTIAL MAPPING AND ASSESSMENT IN XINJIANG( CHINA) BASED ON THE FY SATELLITE DATA

利用风云二号(FY-2D)和风云三号(FY-3A)气象卫星上搭载的可见光辐射自旋扫描分析仪和中分辨率光谱成像仪等传感器数据,基于大气辐射传输原理建立地面太阳直射与散射辐射反演模型,并用来对新疆地区每小时的直射和散射太阳辐射能进行估算;再用地面气象观测站点数据对反演结果进行精度评价。结果表明,所提出的方法能较好地估算新疆地区高时间分辨率的地表太阳辐射,为该区域太阳能资源的利用提供基础数据支撑。

Direct normal irradiance （DNI） and diffuse horizontal irradiance （DIF） are the important factors that have influence on the surface radiation budget and the formation of the Earth climate. In this study, the retrieval models for estimating the DNI and DIF were established based on the modeling of atmosphere radiative transfer process. The models were then used in the estimation of hourly DNI and DIF parameters in Xinjiang from the remotely sensed data sets acquired by the VISSR and MERSI sensors onboard the Chinese FY-2D and the FY-3A satellites. The observational daily DNI and DIF data collected by the National Meteorological Stations at Kashi and Urumqi were used as a reference, to assess the accuracy of the modeled results from the remotely sensed data. The correlative analysis between them indicates that the method and models proposed in this study can provide an effective and valuable estimation, and give a basic data support for the usage of the solar energy in Xinjiang.