Imaging gravity waves in lower stratospheric AMSU-A radiances, Part 1: Simple forward model
نویسندگان
چکیده
منابع مشابه
Imaging gravity waves in lower stratospheric AMSU-A radiances, Part 1: Simple forward model
Using a simplified model of in-orbit radiance acquisition by the Advanced Microwave Sounding Unit (AMSU-A), we derive three-dimensional temperature weighting functions for Channel 9 measurements (peaking at ∼60–90 hPa) at all 30 cross-track beam positions and use them to investigate the sensitivity of these radiances to gravity waves. The vertical widths of the weighting functions limit detecti...
متن کاملImaging gravity waves in lower stratospheric AMSU-A radiances
S. D. Eckermann, D. L. Wu, J. D. Doyle, J. F. Burris, T. J. McGee, C. A. Hostetler, L. Coy, B. N. Lawrence, A. Stephens, J. P. McCormack, and T. F. Hogan E. O. Hulburt Center for Space Research, Naval Research Laboratory, Washington, D.C., USA Jet Propulsion Laboratory, California Institute of Technology, Pasadena, California, USA Marine Meteorology Division, Naval Research Laboratory, Monterey...
متن کاملImaging gravity waves in lower stratospheric AMSU-A radiances, Part 2: Validation case study
Two-dimensional radiance maps from Channel 9 (∼60–90 hPa) of the Advanced Microwave Sounding Unit (AMSU-A), acquired over southern Scandinavia on 14 January 2003, show plane-wave-like oscillations with a wavelength λh of ∼400–500 km and peak brightness temperature amplitudes of up to 0.9 K. The wave-like pattern is observed in AMSU-A radiances from 8 overpasses of this region by 4 different sat...
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Observations made with the co-located Rayleigh lidar and MST radar systems at Aberystwyth (52.4°N, 4.1°W) in Wales and radiosondes from Valentia (51.9°N, 10.2°W) in Eire are used to investigate the changes in the vertical propagation of gravity waves during periods of 4 days in June 1995 and February 1993. In each month, the lidar observations show that the wave activity in the upper stratosphe...
متن کاملThe impact of ozone lines on AMSU-B radiances
[1] The impact of ozone lines on Advanced Microwave Sounding Unit-B (AMSU-B) radiances was investigated using a line-by-line radiative transfer model. The impact is found to be the largest for channel 18 (183.31 ± 1.00 GHz), with a maximum up to about 0.5 K. The channels 17 (150 GHz) and 20 (183.31 ± 7.00 GHz) are also marginally affected by the ozone lines. The magnitude of the impact shows an...
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ژورنال
عنوان ژورنال: Atmospheric Chemistry and Physics
سال: 2006
ISSN: 1680-7324
DOI: 10.5194/acp-6-3325-2006