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The DROPPS/MIDAS Campaign Neutral Atmosphere Measurements and the Occurrence of PMSE and NLC
Author and Affiliation:
Schmidlin, F. J.(NASA Wallops Flight Center, Wallops Island, VA United States);
Schauer, A. G.(NASA Wallops Flight Center, Wallops Island, VA United States);
Zukor, Dorothy J. [Technical Monitor]
Abstract: Measurements of the neutral atmosphere and their relationship to electrodynamic conditions in the mesosphere have been of interest for many years. Inflatable falling sphere measurements along with electrodynamic measurements were obtained in conjunction with the occurrence of PMSE and NLC during the DROPPS/MIDAS Campaign conducted in July 1999 from Andenes Rocket Range, Norway. The inflatable failing sphere measurements in conjunction with a PMSE event on 5-6 July and with a NLC event on 14 July are used to infer thermal advection and its influence on the clouds' maintenance. Hodograph analysis, an early tropospheric tool used by analyst and forecasters, will be used to determine the magnitude and direction of thermal advection from measured wind data. Analysis of the wind structure through the use of hodographs and some assumptions can determine thermal advection, wind shear, and possible vertical motion. Changes in the temperature structure between allied observations were subtle which may be explained by advection. Because of meteorological instabilities in the mesosphere it is possible that hodograph analysis may not fully work. It is our intention to show that such analysis has value and has a place in the mesosphere.
Publication Date: Jan 01, 2001
Document ID:
20010028809
(Acquired Apr 06, 2001)
Subject Category: GEOPHYSICS
Document Type: Preprint
Meeting Information: 2000 Fall AGU Meeting; 15-19 Dec. 2000; San Francisco, CA; United States
Financial Sponsor: NASA Goddard Space Flight Center; Greenbelt, MD United States
Organization Source: NASA Wallops Flight Center; Wallops Island, VA United States
Description: 1p; In English
Distribution Limits: Unclassified; Publicly available; Unlimited
Rights: No Copyright
NASA Terms: ATMOSPHERIC TEMPERATURE; ATMOSPHERIC COMPOSITION; VERTICAL MOTION; WIND MEASUREMENT; WIND SHEAR; NORWAY; ADVECTION; FALLING SPHERES; FORECASTING; HODOGRAPHS; MAINTENANCE; MESOSPHERE; NEUTRAL ATMOSPHERES
Availability Source: Other Sources
Availability Notes: Abstract Only
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