AIRS/AMSU/HSB on the aqua mission: Design, science objectives, data products, and processing systems
AIRS/AMSU/HSB on the aqua mission: Design, science objectives, data products, and processing systems
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DOI：
10.1109/tgrs.2002.808356
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发表时间：
2003-02-01
影响因子：
8.2
通讯作者：
Susskind, J
中科院分区：
文献类型：
--
作者：
Aumann, HH;Chahine, MT;Susskind, J
大气红外探测仪（AIRS）、先进微波探测仪（AMSU）和巴西湿度探测仪（HSB）在地球观测系统（EOS）的Aqua卫星上形成了一个集成的交叉轨道扫描温度和湿度探测系统。AIRS是一种红外光谱仪/辐射计，具有2378个光谱通道，覆盖3.7-15.4倍光谱范围。AMSU是一种15通道微波辐射计，工作频率在23至89 GHz之间。HSB是一种四通道微波辐射计，测量频率在150至190 GHz之间。除了支持美国国家航空航天局在过程研究和气候研究方面的兴趣外，AIRS是第一个高光谱红外辐射计，旨在支持美国国家海洋和大气管理局国家环境预测中心（NCEP）和其他数值天气预报中心的中期天气预报业务需求。AIRS与AMSU和HSB微波辐射计一起，在晴朗和部分多云的条件下，对流层下层的全球反演精度将优于1k。本文概述了科学目标、AIRS/AMSU/HSB数据产品、检索算法和地面数据处理概念。EOS Aqua于2002年5月4日从加利福尼亚州的范登堡空军基地发射，进入705公里高的太阳同步轨道。基于AIRS在发射前测试中表现出的优异的辐射和光谱性能，并已在在轨测试中得到验证，我们期望将AIRS数据同化到数值天气预报中，可以显著提高预报范围和可靠性。
The Atmospheric Infrared Sounder (AIRS), the Advanced Microwave Sounding Unit (AMSU), and the Humidity Sounder for Brazil (HSB) form an integrated cross-track scanning temperature and humidity sounding system on the Aqua satellite of the Earth Observing System (EOS). AIRS is an infrared spectrometer/radiometer that covers the 3.7-15.4-tim spectral range with 2378 spectral channels. AMSU is a 15-channel microwave radiometer operating between 23 and 89 GHz. HSB is a four-channel microwave radiometer that makes measurements between 150 and 190 GHz. In addition to supporting the National Aeronautics and Space Administration's interest in process study and climate research, AIRS is the first hyperspectral infrared radiometer designed to support the operational requirements for medium-range weather forecasting of the National Ocean and Atmospheric Administration's National Centers for Environmental Prediction (NCEP) and other numerical weather forecasting centers. AIRS, together with the AMSU and HSB microwave radiometers, will achieve global retrieval accuracy of better than 1 K in the lower troposphere under clear and partly cloudy conditions. This paper presents an overview of the science objectives, AIRS/AMSU/HSB data products, retrieval algorithms, and the ground-data processing concepts. The EOS Aqua was launched on May 4, 2002 from Vandenberg AFB, CA, into a 705-km-high, sun-synchronous orbit. Based on the excellent radiometric and spectral performance demonstrated by AIRS during prelaunch testing, which has by now been verified during on-orbit testing, we expect the assimilation of AIRS data into the numerical weather forecast to result in significant forecast range and reliability improvements.