An Evaluation of the LOWTRAN 6 Navy Maritime Aerosol Model Using 8- to 12-Micrometers Sky Radiances.
Measurements of infrared (8-12 micrometers) sky radiances over the ocean are compared with those calculated by LOWTRAN 6 by means of the Maritime Aerosol Model along with simultaneously measured (radiosonde) meteorological parameters and atmospheric radon concentrations. For a low wind-speed conditi...
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ftdtic:ADA179817 2023-05-15T17:32:53+02:00 An Evaluation of the LOWTRAN 6 Navy Maritime Aerosol Model Using 8- to 12-Micrometers Sky Radiances. Hughes,Herbert G NAVAL OCEAN SYSTEMS CENTER SAN DIEGO CA 1986-10 text/html http://www.dtic.mil/docs/citations/ADA179817 http://oai.dtic.mil/oai/oai?&verb=getRecord&metadataPrefix=html&identifier=ADA179817 en eng http://www.dtic.mil/docs/citations/ADA179817 APPROVED FOR PUBLIC RELEASE DTIC AND NTIS Atmospheric Physics *RADIANCE *INFRARED RADIATION MATHEMATICAL MODELS ALGORITHMS COMPUTERIZED SIMULATION LIGHT SCATTERING OPTICAL PROPERTIES PARTICLE SIZE AEROSOLS MODELS DISTRIBUTION COMPARISON INFRARED IMAGES WIND VELOCITY SKY METEOROLOGICAL PHENOMENA RADIOSONDES OCEANS OCEAN ENVIRONMENTS ATMOSPHERE MODELS HORIZON LOWTRAN 6 computer program WUSXB3 WUDN888715 PE62759N Text 1986 ftdtic 2016-02-21T03:23:02Z Measurements of infrared (8-12 micrometers) sky radiances over the ocean are compared with those calculated by LOWTRAN 6 by means of the Maritime Aerosol Model along with simultaneously measured (radiosonde) meteorological parameters and atmospheric radon concentrations. For a low wind-speed condition, the measured and calculated radiances agreed within 2% at the optical horizon. However, during moderate wind-speed conditions, the current wind speed component of the aerosol model had to be lowered by factors near 20 in order to produce agreement of the calculated and measured radiances. The adjusted model is then found to agree closely with published results of large particle size distribution measurements in the North Atlantic. Keywords: Optical scattering; Atmospheric modeling; Aerosol size distribution; Radiance algorithm; Infrared radiance; Thermal imaging. Text North Atlantic 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 |
Atmospheric Physics *RADIANCE *INFRARED RADIATION MATHEMATICAL MODELS ALGORITHMS COMPUTERIZED SIMULATION LIGHT SCATTERING OPTICAL PROPERTIES PARTICLE SIZE AEROSOLS MODELS DISTRIBUTION COMPARISON INFRARED IMAGES WIND VELOCITY SKY METEOROLOGICAL PHENOMENA RADIOSONDES OCEANS OCEAN ENVIRONMENTS ATMOSPHERE MODELS HORIZON LOWTRAN 6 computer program WUSXB3 WUDN888715 PE62759N |
spellingShingle |
Atmospheric Physics *RADIANCE *INFRARED RADIATION MATHEMATICAL MODELS ALGORITHMS COMPUTERIZED SIMULATION LIGHT SCATTERING OPTICAL PROPERTIES PARTICLE SIZE AEROSOLS MODELS DISTRIBUTION COMPARISON INFRARED IMAGES WIND VELOCITY SKY METEOROLOGICAL PHENOMENA RADIOSONDES OCEANS OCEAN ENVIRONMENTS ATMOSPHERE MODELS HORIZON LOWTRAN 6 computer program WUSXB3 WUDN888715 PE62759N Hughes,Herbert G An Evaluation of the LOWTRAN 6 Navy Maritime Aerosol Model Using 8- to 12-Micrometers Sky Radiances. |
topic_facet |
Atmospheric Physics *RADIANCE *INFRARED RADIATION MATHEMATICAL MODELS ALGORITHMS COMPUTERIZED SIMULATION LIGHT SCATTERING OPTICAL PROPERTIES PARTICLE SIZE AEROSOLS MODELS DISTRIBUTION COMPARISON INFRARED IMAGES WIND VELOCITY SKY METEOROLOGICAL PHENOMENA RADIOSONDES OCEANS OCEAN ENVIRONMENTS ATMOSPHERE MODELS HORIZON LOWTRAN 6 computer program WUSXB3 WUDN888715 PE62759N |
description |
Measurements of infrared (8-12 micrometers) sky radiances over the ocean are compared with those calculated by LOWTRAN 6 by means of the Maritime Aerosol Model along with simultaneously measured (radiosonde) meteorological parameters and atmospheric radon concentrations. For a low wind-speed condition, the measured and calculated radiances agreed within 2% at the optical horizon. However, during moderate wind-speed conditions, the current wind speed component of the aerosol model had to be lowered by factors near 20 in order to produce agreement of the calculated and measured radiances. The adjusted model is then found to agree closely with published results of large particle size distribution measurements in the North Atlantic. Keywords: Optical scattering; Atmospheric modeling; Aerosol size distribution; Radiance algorithm; Infrared radiance; Thermal imaging. |
author2 |
NAVAL OCEAN SYSTEMS CENTER SAN DIEGO CA |
format |
Text |
author |
Hughes,Herbert G |
author_facet |
Hughes,Herbert G |
author_sort |
Hughes,Herbert G |
title |
An Evaluation of the LOWTRAN 6 Navy Maritime Aerosol Model Using 8- to 12-Micrometers Sky Radiances. |
title_short |
An Evaluation of the LOWTRAN 6 Navy Maritime Aerosol Model Using 8- to 12-Micrometers Sky Radiances. |
title_full |
An Evaluation of the LOWTRAN 6 Navy Maritime Aerosol Model Using 8- to 12-Micrometers Sky Radiances. |
title_fullStr |
An Evaluation of the LOWTRAN 6 Navy Maritime Aerosol Model Using 8- to 12-Micrometers Sky Radiances. |
title_full_unstemmed |
An Evaluation of the LOWTRAN 6 Navy Maritime Aerosol Model Using 8- to 12-Micrometers Sky Radiances. |
title_sort |
evaluation of the lowtran 6 navy maritime aerosol model using 8- to 12-micrometers sky radiances. |
publishDate |
1986 |
url |
http://www.dtic.mil/docs/citations/ADA179817 http://oai.dtic.mil/oai/oai?&verb=getRecord&metadataPrefix=html&identifier=ADA179817 |
genre |
North Atlantic |
genre_facet |
North Atlantic |
op_source |
DTIC AND NTIS |
op_relation |
http://www.dtic.mil/docs/citations/ADA179817 |
op_rights |
APPROVED FOR PUBLIC RELEASE |
_version_ |
1766131188324368384 |