BIOLOGICALLY ACTIVE UV IRRADIANCE: TEMPORAL AND SPATIAL VARIATIONS BASED ON SATELLITE AND GROUND MEASUREMENTS OVER EURASIA

摘要

We discuss variations of biologically active UV irradiance (BAUVR) on the base of TOMS/Nimbus7, TOMS/EP and ground measurements since the middle of the 20th century over Eurasia for warm periods. Comparisons between UV irradiance variability obtained by different methods: from satellite measurements and from ground network are represented. The regions with dominating BAUVR variability due to cloudiness and ozone interannual changes are analyzed.