EFFECT OF SOLAR PROTON EVENTS ON THE MIDDLE ATMOSPHERE DURING THE PAST 2 SOLAR-CYCLES AS COMPUTED USING A 2-DIMENSIONAL MODEL

被引:115
作者
JACKMAN, CH [1 ]
DOUGLASS, AR [1 ]
ROOD, RB [1 ]
MCPETERS, RD [1 ]
MEADE, PE [1 ]
机构
[1] UNIV COLORADO, DEPT ASTROPHYS PLANETARY & ATMOSPHER SCI, BOULDER, CO 80309 USA
关键词
D O I
10.1029/JD095iD06p07417
中图分类号
P4 [大气科学(气象学)];
学科分类号
0706 ; 070601 ;
摘要
Daily average solar proton flux data for the years 1963-1984 (two solar cycles) have been used in a proton energy degradation scheme to derive ion pair production rates and, subsequently, HOx(H, OH, HO2) and NOx(N, NO, NO2) production rates. These HOx and NOx production rates are computed in a form suitable for inclusion in an atmospheric two-dimensional time-dependent photochemical model. The HOx increases, although large for certain solar proton events (SPEs), are relatively short-lived because the HOx species have lifetimes of only hours in the middle atmosphere. For longer-lived NOx species, increases are important for 2-4 months past the more intense SPEs but are generally negligible 6 months after the SPE. -from Authors
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页码:7417 / 7428
页数:12
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