The measurement of ultraviolet radiation and sunburn time over southern Ontario
In: NASA. Goddard Space Flight Center, Ozone in the Troposphere and Stratosphere, Part 2, 1994-04-01
Online
report
Studies of the depletion of ozone which have been conducted from the TOMS instrument on the NIMBUS 7 satellite indicate that total ozone has declined by 5 percent over the last 12 years at most mid-latitudes in the Northern Hemisphere typical of southern Ontario. The measurement of the actual resultant increases in UVB is now important. A monitoring program of UVB (biologically active solar ultraviolet radiation) has been conducted for the last 24 months at a site near Bolton, Ontario. The sunburn time varies from less than 17 minutes in late July, to over 4 hours in December on clear days. The levels depend on solar insolation and total ozone column. The ultraviolet levels are strongly affected by cloud and sky conditions. The implications of present and future depletion on the sunburn time are discussed.
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The measurement of ultraviolet radiation and sunburn time over southern Ontario
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| Autor/in / Beteiligte Person: | Evans, W. F. J |
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| Zeitschrift: | NASA. Goddard Space Flight Center, Ozone in the Troposphere and Stratosphere, Part 2, 1994-04-01 |
| Veröffentlichung: | United States: NASA Center for Aerospace Information (CASI), 1994 |
| Medientyp: | report |
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