An Empirical Model for Near Millimeter Wave Snow Extinction and Backscatter
A snow extinction and backscatter model for near millimeter waves was developed to complete a set of natural atmosphere propagation models for inclusion in the Electro-Optics System Effects Library (EOSAEL). This model is compact, simple, fast, and uses commonly available meteorological data as inpu...
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ftdtic:ADA117350 2023-05-15T15:55:49+02:00 An Empirical Model for Near Millimeter Wave Snow Extinction and Backscatter Brown, Douglas R. ARMY ELECTRONICS RESEARCH AND DEVELOPMENT COMMAND WSMR NM ATMOSPHERIC SCIENCE LAB 1982-06-18 text/html http://www.dtic.mil/docs/citations/ADA117350 http://oai.dtic.mil/oai/oai?&verb=getRecord&metadataPrefix=html&identifier=ADA117350 en eng http://www.dtic.mil/docs/citations/ADA117350 Approved for public release; distribution is unlimited. Document partially illegible. DTIC AND NTIS Radiofrequency Wave Propagation *MODELS *MILLIMETER WAVES *NEAR FIELD *BACKSCATTERING *SUPPRESSION PROPAGATION RAIN CLASSIFICATION MOISTURE METEOROLOGICAL PHENOMENA SNOW METEOROLOGICAL DATA ENVIRONMENTS ELECTROOPTICS AIR TEMPERATURE SNOW FLAGES ICE TO LIQUID RATIO Text 1982 ftdtic 2016-02-22T03:55:10Z A snow extinction and backscatter model for near millimeter waves was developed to complete a set of natural atmosphere propagation models for inclusion in the Electro-Optics System Effects Library (EOSAEL). This model is compact, simple, fast, and uses commonly available meteorological data as inputs. The accuracy is commensurate with the accuracy of those input parameters; where the input parameters do not properly characterize the environment, further input specification is available. For snow, the rain equivalent accumulation rate is the fundamental input, with air temperature providing the distinction between dry and wet snowtypes. For millimeter wave (MMW), the classification of the snowflake by its ice-to-liquid-water ratio is necessary, due to the large differences in the complex indices of refraction of ice and water. The snow extinction is presented first, including a review of the data used to generate it. The backscatter model is then discussed, followed by a comparison between the model and measurements made at the Cold Regions Research and Engineering Laboratory (CRREL) SNOW-ONE test in January-February 1982. Paper from the Proceedings of the Army Sciences Conference (1982), 15-18 Jun 1982. Text Cold Regions Research and Engineering Laboratory Defense Technical Information Center: DTIC Technical Reports database |
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Defense Technical Information Center: DTIC Technical Reports database |
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English |
topic |
Radiofrequency Wave Propagation *MODELS *MILLIMETER WAVES *NEAR FIELD *BACKSCATTERING *SUPPRESSION PROPAGATION RAIN CLASSIFICATION MOISTURE METEOROLOGICAL PHENOMENA SNOW METEOROLOGICAL DATA ENVIRONMENTS ELECTROOPTICS AIR TEMPERATURE SNOW FLAGES ICE TO LIQUID RATIO |
spellingShingle |
Radiofrequency Wave Propagation *MODELS *MILLIMETER WAVES *NEAR FIELD *BACKSCATTERING *SUPPRESSION PROPAGATION RAIN CLASSIFICATION MOISTURE METEOROLOGICAL PHENOMENA SNOW METEOROLOGICAL DATA ENVIRONMENTS ELECTROOPTICS AIR TEMPERATURE SNOW FLAGES ICE TO LIQUID RATIO Brown, Douglas R. An Empirical Model for Near Millimeter Wave Snow Extinction and Backscatter |
topic_facet |
Radiofrequency Wave Propagation *MODELS *MILLIMETER WAVES *NEAR FIELD *BACKSCATTERING *SUPPRESSION PROPAGATION RAIN CLASSIFICATION MOISTURE METEOROLOGICAL PHENOMENA SNOW METEOROLOGICAL DATA ENVIRONMENTS ELECTROOPTICS AIR TEMPERATURE SNOW FLAGES ICE TO LIQUID RATIO |
description |
A snow extinction and backscatter model for near millimeter waves was developed to complete a set of natural atmosphere propagation models for inclusion in the Electro-Optics System Effects Library (EOSAEL). This model is compact, simple, fast, and uses commonly available meteorological data as inputs. The accuracy is commensurate with the accuracy of those input parameters; where the input parameters do not properly characterize the environment, further input specification is available. For snow, the rain equivalent accumulation rate is the fundamental input, with air temperature providing the distinction between dry and wet snowtypes. For millimeter wave (MMW), the classification of the snowflake by its ice-to-liquid-water ratio is necessary, due to the large differences in the complex indices of refraction of ice and water. The snow extinction is presented first, including a review of the data used to generate it. The backscatter model is then discussed, followed by a comparison between the model and measurements made at the Cold Regions Research and Engineering Laboratory (CRREL) SNOW-ONE test in January-February 1982. Paper from the Proceedings of the Army Sciences Conference (1982), 15-18 Jun 1982. |
author2 |
ARMY ELECTRONICS RESEARCH AND DEVELOPMENT COMMAND WSMR NM ATMOSPHERIC SCIENCE LAB |
format |
Text |
author |
Brown, Douglas R. |
author_facet |
Brown, Douglas R. |
author_sort |
Brown, Douglas R. |
title |
An Empirical Model for Near Millimeter Wave Snow Extinction and Backscatter |
title_short |
An Empirical Model for Near Millimeter Wave Snow Extinction and Backscatter |
title_full |
An Empirical Model for Near Millimeter Wave Snow Extinction and Backscatter |
title_fullStr |
An Empirical Model for Near Millimeter Wave Snow Extinction and Backscatter |
title_full_unstemmed |
An Empirical Model for Near Millimeter Wave Snow Extinction and Backscatter |
title_sort |
empirical model for near millimeter wave snow extinction and backscatter |
publishDate |
1982 |
url |
http://www.dtic.mil/docs/citations/ADA117350 http://oai.dtic.mil/oai/oai?&verb=getRecord&metadataPrefix=html&identifier=ADA117350 |
genre |
Cold Regions Research and Engineering Laboratory |
genre_facet |
Cold Regions Research and Engineering Laboratory |
op_source |
DTIC AND NTIS |
op_relation |
http://www.dtic.mil/docs/citations/ADA117350 |
op_rights |
Approved for public release; distribution is unlimited. Document partially illegible. |
_version_ |
1766391306970464256 |