LATITUDINAL DISTRIBUTION OF CARBON-MONOXIDE IN THE DEEP ATMOSPHERE OF VENUS

被引:39
|
作者
COLLARD, AD
TAYLOR, FW
CALCUTT, SB
CARLSON, RW
KAMP, LW
BAINES, KH
ENCRENAZ, T
DROSSART, P
LELLOUCH, E
BEZARD, B
机构
[1] UNIV OXFORD,CLARENDON LAB,OXFORD OX1 3PU,OXON,ENGLAND
[2] JET PROP LAB,PASADENA,CA 91109
[3] OBSERV PARIS,DESPA,CNRS,URA 264,F-92195 MEUDON,FRANCE
关键词
D O I
10.1016/0032-0633(93)90031-V
中图分类号
P1 [天文学];
学科分类号
0704 ;
摘要
A large number of i.r. spectra of Venus was obtained using the Near-Infrared Mapping Spectrometer (NIMS) on the Galileo spacecraft, during the February 1990 encounter. Preliminary results show an apparent increase in the tropospheric CO volume mixing ratio (vmr) in the northern polar region: Other; possible explanations of the observations are examined and rejected and an increase of the CO abundance north of 47 degrees N of (35+/-15)% is inferred. Some possible causes of this enhancement are suggested.
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页码:487 / 494
页数:8
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