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Analysis of the Meteorology Associated with the 1997 NASA Glenn Twin Otter Icing EventsThis part of the document contains an analysis of the meteorology associated with the premier icing encounters from the January-March 1997 NASA Twin Otter dataset. The purpose of this analysis is to provide a meteorological context for the aircraft data collected during these flights. For each case, the following data elements are presented: (1) A detailed discussion of the Twin Otter encounter, including locations, liquid water contents, temperatures and microphysical makeup of the clouds and precipitation aloft, (2) Upper-air charts, providing hand-analyzed locations of lows, troughs, ridges, saturated/unsaturated air, temperatures, warm/cold advection, and jet streams, (3) Balloon-borne soundings, providing vertical profiles of temperature, moisture and winds, (4) Infrared satellite data, providing cloud locations and cloud top temperature, (5) 3-hourly surface charts, providing hand-analyzed locations of lows, highs, fronts, precipitation (including type) and cloud cover, (6) Hourly plots of icing pilot reports, providing the icing intensity, icing type, icing altitudes and aircraft type, (7) Hourly, regional radar mosaics, providing fine resolution of the locations of precipitation (including intensity and type), pilot reports of icing (including intensity and type), surface observations of precipitation type and Twin Otter tracks for a one hour window centered on the time of the radar data, and (8) Plots of data from individual NEXRAD radars at times and elevation angles that have been matched to Twin Otter flight locations. Outages occurred in nearly every dataset at some point. All relevant data that was available is presented here. All times are in UTC and all heights are in feet above mean sea level (MSL).
Document ID
20120002772
Acquisition Source
Glenn Research Center
Document Type
Contractor Report (CR)
Authors
Bernstein, Ben C.
(National Center for Atmospheric Research Boulder, CO, United States)
Date Acquired
August 25, 2013
Publication Date
November 1, 2000
Subject Category
Meteorology And Climatology
Report/Patent Number
E-12427
NASA/CR-2000-209413
Funding Number(s)
CONTRACT_GRANT: SETAR-0088
WORK_UNIT: WU 548-21-23
Distribution Limits
Public
Copyright
Public Use Permitted.
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