ERYTHEMAL WEIGHTED ULTRAVIOLET TRENDS OVER NORTHERN LATITUDES

摘要

This study examines the distribution of long-term trends in ground-level erythemally-weighted ultraviolet-B (UVB, wavelengths 290-320 nm) exposures in the northern latitudes for the period 1979-1991 using measurements from the Nimbus 7 total ozone mapping spectrometer (TOMS) instrument. Zonal mean erythemal UV data show ～3-7/100 per decade increases in the mid-to-high latitudes.