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Wind estimates from cloud motions - Phase 1 of an in situ aircraft verification experimentAn initial experiment has been conducted to verify geostationary-satellite-derived cloud motion wind estimates with in situ aircraft wind velocity measurements. Case histories of 1/2 to 2 h were obtained for 3-10 km diameter cumulus cloud systems on 6 days. Also, one cirrus cloud case was obtained. In most cases the clouds were discrete enough that both the cloud motion and the ambient wind could be measured with the same aircraft Inertial Navigation System (INS). Since the INS drift error is the same for both the cloud motion and wind measurements, the drift error drops out of the relative motion determinations. The magnitude of the vector difference between the cloud motion and the ambient wind at the cloud base averaged 1.2 m/sec. The wind vector at higher levels in the cloud layer differed by about 3 to 5 m/sec from the cloud motion vector.
Document ID
19760039690
Acquisition Source
Legacy CDMS
Document Type
Reprint (Version printed in journal)
Authors
Hasler, A. F.
(NASA Goddard Space Flight Center Greenbelt, MD, United States)
Shenk, W.
(NASA Goddard Space Flight Center Greenbelt, MD, United States)
Skillman, W.
(NASA Goddard Space Flight Center Greenbelt, Md., United States)
Date Acquired
August 8, 2013
Publication Date
January 1, 1976
Publication Information
Publication: Journal of Applied Meteorology
Volume: 15
Subject Category
Meteorology And Climatology
Accession Number
76A22656
Distribution Limits
Public
Copyright
Other

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