Evaluation of the Helicopter Icing Module for TWI (Tactical Weather Information)
An evaluation was made of the Army's Helicopter Icing Modu le for Tactical Weather Information. The important features of the Helicopter Icing Module relate to its ability to estimate the severity of icing conditions. The severity of icing was assessed by evaluating three of the four submodules...
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ftdtic:ADA215056 2023-05-15T16:37:32+02:00 Evaluation of the Helicopter Icing Module for TWI (Tactical Weather Information) Luers, James K. DAYTON UNIV OH RESEARCH INST 1987-02 text/html http://www.dtic.mil/docs/citations/ADA215056 http://oai.dtic.mil/oai/oai?&verb=getRecord&metadataPrefix=html&identifier=ADA215056 en eng http://www.dtic.mil/docs/citations/ADA215056 APPROVED FOR PUBLIC RELEASE DTIC AND NTIS Snow Ice and Permafrost Helicopters *ICE FORMATION *WEATHER FORECASTING ESTIMATES FREEZING GRIDS MODULAR CONSTRUCTION OBSERVATION PRECIPITATION RAIN TACTICAL DATA SYSTEMS Text 1987 ftdtic 2016-02-19T11:30:58Z An evaluation was made of the Army's Helicopter Icing Modu le for Tactical Weather Information. The important features of the Helicopter Icing Module relate to its ability to estimate the severity of icing conditions. The severity of icing was assessed by evaluating three of the four submodules which contribute to the severity information. These submodules are a) the preliminary analysis which provides an estimate of negligible vs trace icing as a function of dew-point depression and temperature; b) the frontal analysis submodule which enhances the icing estimate based upon the proximity of the grid area to a front; c) an orographic submodule which further enhances the severity level as a result of the vertical motion induced by hilly terrain and; d) a freezing rain, freezing drizzle submodule which assigns severe or moderate icing conditions to the geographic region surrounding an observation of freezing precipitation. (sdw) Text Ice permafrost Defense Technical Information Center: DTIC Technical Reports database |
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Open Polar |
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Defense Technical Information Center: DTIC Technical Reports database |
op_collection_id |
ftdtic |
language |
English |
topic |
Snow Ice and Permafrost Helicopters *ICE FORMATION *WEATHER FORECASTING ESTIMATES FREEZING GRIDS MODULAR CONSTRUCTION OBSERVATION PRECIPITATION RAIN TACTICAL DATA SYSTEMS |
spellingShingle |
Snow Ice and Permafrost Helicopters *ICE FORMATION *WEATHER FORECASTING ESTIMATES FREEZING GRIDS MODULAR CONSTRUCTION OBSERVATION PRECIPITATION RAIN TACTICAL DATA SYSTEMS Luers, James K. Evaluation of the Helicopter Icing Module for TWI (Tactical Weather Information) |
topic_facet |
Snow Ice and Permafrost Helicopters *ICE FORMATION *WEATHER FORECASTING ESTIMATES FREEZING GRIDS MODULAR CONSTRUCTION OBSERVATION PRECIPITATION RAIN TACTICAL DATA SYSTEMS |
description |
An evaluation was made of the Army's Helicopter Icing Modu le for Tactical Weather Information. The important features of the Helicopter Icing Module relate to its ability to estimate the severity of icing conditions. The severity of icing was assessed by evaluating three of the four submodules which contribute to the severity information. These submodules are a) the preliminary analysis which provides an estimate of negligible vs trace icing as a function of dew-point depression and temperature; b) the frontal analysis submodule which enhances the icing estimate based upon the proximity of the grid area to a front; c) an orographic submodule which further enhances the severity level as a result of the vertical motion induced by hilly terrain and; d) a freezing rain, freezing drizzle submodule which assigns severe or moderate icing conditions to the geographic region surrounding an observation of freezing precipitation. (sdw) |
author2 |
DAYTON UNIV OH RESEARCH INST |
format |
Text |
author |
Luers, James K. |
author_facet |
Luers, James K. |
author_sort |
Luers, James K. |
title |
Evaluation of the Helicopter Icing Module for TWI (Tactical Weather Information) |
title_short |
Evaluation of the Helicopter Icing Module for TWI (Tactical Weather Information) |
title_full |
Evaluation of the Helicopter Icing Module for TWI (Tactical Weather Information) |
title_fullStr |
Evaluation of the Helicopter Icing Module for TWI (Tactical Weather Information) |
title_full_unstemmed |
Evaluation of the Helicopter Icing Module for TWI (Tactical Weather Information) |
title_sort |
evaluation of the helicopter icing module for twi (tactical weather information) |
publishDate |
1987 |
url |
http://www.dtic.mil/docs/citations/ADA215056 http://oai.dtic.mil/oai/oai?&verb=getRecord&metadataPrefix=html&identifier=ADA215056 |
genre |
Ice permafrost |
genre_facet |
Ice permafrost |
op_source |
DTIC AND NTIS |
op_relation |
http://www.dtic.mil/docs/citations/ADA215056 |
op_rights |
APPROVED FOR PUBLIC RELEASE |
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1766027821566656512 |