Surface solar irradiance from the International Satellite Cloud Climatology Project 1983-1991
Surface solar irradiance from the International Satellite Cloud Climatology Project 1983-1991
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DOI：
10.1029/96jd03865
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发表时间：
1997-03-27
影响因子：
4.4
通讯作者：
Dutton, EG
中科院分区：
文献类型：
--
作者：
Bishop, JKB;Rossow, WB;Dutton, EG
利用国际卫星云气候学项目(ISCCP)的资料和修正的Bishop和Rossow[1991]算法，得到了8年(1983年7月至1991年6月)地球表面日平均和月平均太阳辐照度的时间序列。我们利用浮标、偏远岛屿和全球能量平衡档案(GEBA)的同期地面观测，对ISCCP太阳辐照场进行了详细的验证分析[OhMura等人，1991]。280公里ISCCP产品与单点测量之间的尺度差异在一定程度上阻碍了验证，其中一些测量受到地形云和其他当地气象影响的影响。我们的分析建议了岛屿或沿海监测点的选址标准，以最大限度地减少这种偏见。特别是，应避免向东或向极地朝向海洋暴露。此外，我们建议对深海浮标进行调查，以验证海洋表面通量。在开阔的海洋、清洁的空气中，ISCCP产品的月平均质量好到10W m(-2)。ISCCP产品还很好地复制了远洋站点太阳辐照度变化的高频(每日)系统。修正的太阳辐射产品中的一个可识别的错误是忽略了气溶胶消光在空间和时间上的变化。在已知的受污染和矿物粉尘影响的地区，这一误差换算成等效的气溶胶消光系数可能高达0.6。除了在ISCCP处理中已经纠正的误差之外，我们不能确定卫星传感器的额外校准误差。这一独特的长数据集自1994年以来一直在国家大气研究中心公开提供。这些数据记录了主要海洋接收的太阳通量的显著差异，以及在季节和年际时间尺度上的显著通量变异性。
An 8 year (July 1983 through June 1991) time series of daily and monthly mean surface solar irradiance has been produced for the globe using data from the International Satellite Cloud Climatology Project (ISCCP) and a revised Bishop and Rossow [1991] algorithm. We present a detailed validation analysis of the ISCCP solar irradiance fields with contemporaneous surface observations at buoys, at remote islands, and from the Global Energy Balance Archives (GEBA) [Ohmura et al., 1991]. The validation is hampered to some degree by the scale difference between the 280 km ISCCP product and the single-point measurements, some of which are affected by orographic clouds and other local meteorological effects. Our analysis suggests criteria for siting of island or coastal monitoring locations to minimize such biases. Particularly, eastward or poleward facing oceanic exposures are to be avoided. In addition, we suggest that deep sea buoys should be investigated for validation of oceanic surface fluxes. At open-ocean, clean-air sites, the ISCCP product is shown to be good to within 10 W m(-2) in the monthly mean. The high-frequency (daily) systematics of solar irradiance variability at the open-ocean sites are also well duplicated by the ISCCP product. An identifiable error in the revised solar irradiance product is the neglect of spatially and temporally varying aerosol extinction. This error, when translated into an equivalent aerosol extinction coefficient, can be as large as 0.6 in known polluted and mineral dust-affected regions. We cannot determine additional satellite sensor calibration errors beyond those already corrected in the ISCCP processing This uniquely long data set has been publicly available since 1994 at the National Center for Atmospheric Research. The data documents significant differences in solar fluxes received by the major oceans as well as significant flux variability on seasonal to interannual timescales.