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Long-term Global Morphology of Gravity Wave Activity Using UARS DataAn extensive body of research this quarter is documented. Further methodical analysis of temperature residuals in Cryogenic Limb Array Etalon Spectrometer (CLAES) Version 8 level 3AT data show signatures during December 1992 at middle and high northern latitudes that, when compared to Naval Research Laboratory/Mountain Wave Forecast Model (NRL)/(MWFM) mountain wave hindcasts, reveal evidence of long mountain waves in these data over Eurasia, Greenland, Scandinavia and North America. The explicit detection of gravity waves in limb-scanned Cryogenic Infrared Spectrometers and Telescopes for the Atmosphere (CRISTA) temperatures is modeled at length, to derive visibility functions. These insights are used to convert CRISTA gravity wave temperature residuals into data that more closely resemble gravity wave fluctuations detected in data from other satellite instruments, such as Microwave Limb Sounder (MLS), Limb Infrared Monitor of the Stratosphere (LIMS) and Global Positioning System/Meteorology (GPS)/(MET). Finally, newly issued mesospheric temperatures from inversion of CRISTA 15gin emissions are analyzed using a new method that uses separate Kalman fits to the ascending and descending node data. This allows us to study global gravity wave amplitudes at two local times, 12 hours apart. In the equatorial mesosphere, where a large diurnal tidal temperature signal exists, we see modulations of gravity wave activity that are consistent with gravity wave-tidal interactions produced by tidal temperature variability.
Document ID
20030000473
Acquisition Source
Goddard Space Flight Center
Document Type
Contractor or Grantee Report
Authors
Eckermann, Stephen D.
(Computational Physics, Inc. Fairfax, VA United States)
Jackman, C.
Date Acquired
August 21, 2013
Publication Date
September 18, 2000
Subject Category
Meteorology And Climatology
Report/Patent Number
Rept-5090-11
NRA-97-MTPE-04
Funding Number(s)
CONTRACT_GRANT: NAS5-98045
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.
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