Estimating Solar UV-B Irradiance at the Earth’s Surface Using Multi-Satellite Remote Sensing Measurements

摘要: With the continued observation of stratospheric ozone depletion in both northern and southern hemispheres (Bojkov et al., 1995; Farman 1985; Soloman 1986), there is mounting interest solar ultraviolet radiation (UVR) received at Earth’s surface, especially biologically active ultraviolet-B (UV-B). During last decade, some Earth surface UVR monitoring has been carried out (Scotto 1988; Lubin 1989; Webb, 1992; Booth 1994; Qu 1996; Bigelow 1998); however, observations are still limited duration areal coverage. Specifically, these measurements have not sufficient to substantiate or eliminate possibility an increase long-term trend observed on except Antarctic 1988). There four main weaknesses existing data UV-B: (1) reliance set use broadband UV-B radiometers spectroradiometers before 1980, (2) most made urban areas where column levels were impacted by significant local trends, (3) air pollution; comparisons lacking among different UV networks, (4) measurement instruments properly calibrated. Data quality remains poor for newer programs.