首页> 外文期刊>Journal of Geophysical Research. Biogeosciences >CRYOGENIC INFRARED RADIANCE INSTRUMENTATION FOR SHUTTLE (CIRRIS 1A) EARTH LIMB SPECTRAL MEASUREMENTS, CALIBRATION, AND ATMOSPHERIC O-3, HNO3, CFC-12, AND CFC-11 PROFILE RETRIEVAL
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CRYOGENIC INFRARED RADIANCE INSTRUMENTATION FOR SHUTTLE (CIRRIS 1A) EARTH LIMB SPECTRAL MEASUREMENTS, CALIBRATION, AND ATMOSPHERIC O-3, HNO3, CFC-12, AND CFC-11 PROFILE RETRIEVAL

机译:短波(Cirris 1A)地肢光谱测量,校准和大气O-3,HNO3,CFC-12和CFC-11轮廓的低温红外辐射仪

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摘要

During the Space Transportation System 39 (STS 39) flight of April 28 to May 6, 1991, the Cryogenic Infrared Radiance Instrumentation for Shuttle (CIRRIS 1A) measured spectral and spatial (''Earth limb scan'') distributions of the atmospheric infrared (IR) emissions using a Michelson interferometer. The IR spectral radiant emissions from the greenhouse gases were collected at a shuttle altitude of 260 km in the 9 - 13 mu m atmosphere infrared window. Before and after the flight, the response of CIRRIS 1A to the IR spectral emission sources was calibrated using absolute and spectral source types. The Fast Atmospheric Signature Code 3, which used the HTTRAN92 database and predetermined temperature-pressure profiles from the National Meteorological Center, was used in an onion-peeling routine to retrieve gas concentrations from absolutely calibrated spectral data (moderate resolution similar to 1.0 cm(-1)). Vertical profiles of O-3, HNO3, CFC-12, and CFC-11 are presented. An error analysis is presented to show the quality of the measured spectral data and the accuracy of these retrieval results. The concentrations of CFC-11 (3.0x10(4) ppmv) and CFC-12 (4.9x10(4) ppmv) in the tropopause region are consistent with a global flux increment rate of about 5% yr(-1). The observed concentrations of HNO3 are consistent with previous reports for a relatively clean stratosphere. [References: 45]
机译:在1991年4月28日至5月6日的太空运输系统39(STS 39)飞行中,航天飞机用低温红外辐射仪(CIRRIS 1A)测量了大气红外光谱和空间(“地肢扫描”)分布(使用迈克尔逊干涉仪的红外辐射。来自温室气体的红外光谱辐射发射是在9-13微米大气红外窗口中在260 km的航天飞机高度处收集的。在飞行前后,CIRRIS 1A对红外光谱发射源的响应已使用绝对和光谱源类型进行了校准。使用HTTRAN92数据库和国家气象中心预先确定的温度-压力曲线的快速大气特征码3用于洋葱剥皮程序,以从绝对校准的光谱数据中检索气体浓度(中等分辨率类似于1.0 cm(- 1))。给出了O-3,HNO3,CFC-12和CFC-11的垂直剖面。进行了误差分析,以显示测得的光谱数据的质量和这些检索结果的准确性。在对流层顶区域中CFC-11(3.0x10(4)ppmv)和CFC-12(4.9x10(4)ppmv)的浓度与大约5%yr(-1)的总通量增加率一致。观测到的HNO3浓度与以前报道的相对干净的平流层一致。 [参考:45]

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