OH and HO2 in the tropical Pacific:: Results from PEM-Tropics B

被引:53
作者
Tan, D [5 ]
Faloona, I
Simpas, JB
Brune, W
Olson, J
Crawford, J
Avery, M
Sachse, G
Vay, S
Sandholm, S
Guan, HW
Vaughn, T
Mastromarino, J
Heikes, B
Snow, J
Podolske, J
Singh, H
机构
[1] NASA, Langley Res Ctr, Div Atmospher Sci, Langley, VA USA
[2] Penn State Univ, Dept Meteorol, University Pk, PA 16802 USA
[3] Univ Rhode Isl, Grad Sch Oceanog, Narragansett, RI 02882 USA
[4] NASA, Ames Res Ctr, Div Earth Sci, Moffett Field, CA 94035 USA
[5] Georgia Inst Technol, Sch Earth & Atmospher Sci, Atlanta, GA 30332 USA
关键词
D O I
10.1029/2001JD900002
中图分类号
P4 [大气科学(气象学)];
学科分类号
0706 ; 070601 ;
摘要
OH and HO2 data collected on NASA's Pacific Exploratory Mission - Tropics B (PEM-Tropics B) are presented here and compared to results from a photochemical box model. PEM-Tropics B took place in the tropical Pacific in March and April of 1999 and examined photochemistry and sulfur chemistry in the remote tropical atmosphere. Altitude-resolved HOx budgets are presented. The model showed good overall agreement with the data, with a mean model to observed ratio of 0.86 for OH and 1.03 for HO2. The model tends to underpredict OH at higher altitudes and overpredict at low altitudes. The model agrees well with the HO2 observations at middle altitudes but tends to overpredict slightly at high and low altitudes.
引用
收藏
页码:32667 / 32681
页数:15
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