Mesoscale gravity wave variances from AMSU-A radiances
نویسندگان
چکیده
منابع مشابه
Imaging 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...
متن کاملImaging 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...
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[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...
متن کاملNumerical simulations of a large-amplitude mesoscale gravity wave event
Numerical simulations with the NCAR=PSU Mesoscale Model 5 (MM5) were performed to study a large-amplitude gravity wave event that occurred on 4 January 1994 along the East Coast of the United States. Results from the MM5 control simulation using a 12-km mesh resolution compared well with the synoptic and mesoscale observational analysis. The simulated gravity waves displayed timing, location, w...
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ژورنال
عنوان ژورنال: Geophysical Research Letters
سال: 2004
ISSN: 0094-8276
DOI: 10.1029/2004gl019562