Validation of line-of-sight winds from ACE-FTS solar occultation measurements

被引:0
|
作者
Johnson, R. [1 ]
Bernath, P. [1 ,2 ,3 ]
Boone, C. D. [3 ]
机构
[1] Old Dominion Univ, Deparment Phys, Norfolk, VA 23529 USA
[2] Old Dominion Univ, Dept Chem & Biochem, Norfolk, VA USA
[3] Univ Waterloo, Dept Chem, Waterloo, ON, Canada
关键词
Satellite remote sensing; Wind speeds; Doppler shift; MIDDLE ATMOSPHERE; LIDAR; INTERFEROMETER; MISSION;
D O I
10.1016/j.jqsrt.2023.108870
中图分类号
O43 [光学];
学科分类号
070207 ; 0803 ;
摘要
The Atmospheric Chemistry Experiment Fourier Transform Spectrometer (ACE-FTS) measures infrared transmittance spectra of the atmosphere from low Earth orbit using the Sun as a light source (solar occultation). Doppler shifts of gas-phase lines in the measured spectra can be used to determine line-of-sight winds. These lineof-sight winds are a new data product for version 5.2 of ACE-FTS processing. The winds are validated through comparison with independent horizontal wind observations from meteor radars and from the ICON-MIGHTI satellite instrument. ACE-FTS winds show a similar to 15 m/s offset, opposite in sign for the two different ACE-FTS observation geometries (sunrise and sunset).
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页数:8
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