Clear-sky far-infrared measurements observed with TAFTS during the EAQUATE campaign, September 2004
Clear-sky far-infrared measurements observed with TAFTS during the EAQUATE campaign, September 2004
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2004 年 9 月 EAQUATE 活动期间使用 TAFTS 观测到的晴空远红外测量结果
DOI：
10.1002/qj.159
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发表时间：
2007
影响因子：
8.9
通讯作者：
Cox C
中科院分区：
文献类型：
--
作者：
Cox C
Observed clear‐sky far‐infrared (FIR) radiances measured by the Tropospheric Airborne Fourier Transform Spectrometer (TAFTS) are presented. These measurements were taken when flying on board the Facility for Atmospheric Airborne Measurements British Aerospace 146 aircraft over the UK on 18 September 2004 in the upper troposphere between 8.3 and 9.2 km altitude, during the European AQUA Thermodynamic Experiment (EAQUATE). Upwelling clear‐sky measurements from the TAFTS short‐wave channel (330 to 500 cm−1) are shown and these measured radiances are compared to model radiances where various dropsonde data are incorporated. The variations in the water vapour profiles below the aircraft are explored in terms of the FIR spectra. The downwelling measurements from TAFTS long‐wave channel (90 to 230 cm−1) are also compared to model spectra, produced in this case from the UK Met Office (UKMO) mesoscale model. The variation in the UKMO mesoscale modelled downwelling radiance over the flight leg is seen to have a standard deviation of 0.5 to 2 mW (m2sr cm−1)−1, that is of the order of TAFTS detection limit in this particular campaign. Copyright © 2007 Royal Meteorological Society
