Quantum yields of O(1D) in the photolysis of ozone between 289 and 329 nm as a function of temperature

被引：82

作者：

Talukdar, RK

Longfellow, CA

Gilles, MK

Ravishankara, AR

机构：

[1] NOAA, Aeron Lab, Boulder, CO 80303 USA

[2] Univ Colorado, Cooperat Inst Res Environm Sci, Boulder, CO 80309 USA

[3] Univ Colorado, Dept Chem & Biochem, Boulder, CO 80309 USA

来源：

GEOPHYSICAL RESEARCH LETTERS | 1998年 / 25卷 / 02期

关键词：

D O I：

10.1029/97GL03354

中图分类号：

P [天文学、地球科学];

学科分类号：

07 ;

摘要：

The quantum yields for O(D-1) production in O-3 photolysis between 203 and 320 K, and 289 to 329 nm were measured. A portion of the observed O(D-1) quantum yields at wavelengths greater than 310 nm is attributed to a spin-forbidden channel and the variation of quantum yield with temperature is ascribed to photodissociation of vibrationally (or rotationally) excited ozone. Our results yield atmospheric O(D-1) production rates larger than those obtained from current recommendations, especially at high solar zenith angles, low temperatures, and large overhead ozone columns.

引用

页码：143 / 146

页数：4

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