SPACE-SHUTTLE OBSERVATIONS OF COLLISIONALLY EXCITED OUTGASSED WATER-VAPOR

被引：16

作者：

DEAN, DA ^{[1
]}

HUPPI, ER ^{[1
]}

SMITH, DR ^{[1
]}

NADILE, RM ^{[1
]}

ZHOU, DK ^{[1
]}

机构：

[1] UTAH STATE UNIV,SPACE DYNAM LAB,LOGAN,UT 84321

来源：

GEOPHYSICAL RESEARCH LETTERS | 1994年 / 21卷 / 07期

关键词：

D O I：

10.1029/94GL00200

中图分类号：

P [天文学、地球科学];

学科分类号：

07 ;

摘要：

The analysis of CIRRIS 1A (Cryogenic InfraRed Radiance Instrumentation for Shuttle) interferometric and radiometric data obtained during the flight of STS-39 (28 Apr - 6 May 1991) reveals the presence of IR emission in the 400-900 cm-1 (11-25 mum) region not attributable to atmospheric emission. In this paper, data are shown which identify the signal as near-field water vapor present during all CIRRIS 1A observations. Variability of the near-field water vapor emissions is characterized, and further investigation indicates that the water is excited to high effective temperatures, possibly in excess of 2000 K. The data presented support the conclusion that water outgassed from the shuttle tiles is highly excited by collisions with atmospheric O, classifying it as a type of shuttle-induced glow whose spectrum has never previously been measured in the LWIR. Measured results are compared to current models which predict radiance for collisionally excited outgassed molecules.

引用

页码：609 / 612

页数：4

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