Individual Particle Analysis of the Springtime Arctic Aerosol, 1983-1989
During the springs of 1983, 1986 and 1989, the Arctic Gas and Aerosol Sampling Program (AGASP) conducted major aircraft-based field experiments over much of the western Arctic. As part of the AGASP research efforts, several regions of the springtime Arctic atmosphere were probed by the NOAA WP-3D Or...
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ftdtic:ADP007360 2023-05-15T14:34:52+02:00 Individual Particle Analysis of the Springtime Arctic Aerosol, 1983-1989 Sheridan, Patrick J. Schnell, Russell C. Kahl, Jonathan D. COLORADO UNIV AT BOULDER 1992-03 text/html http://www.dtic.mil/docs/citations/ADP007360 http://oai.dtic.mil/oai/oai?&verb=getRecord&metadataPrefix=html&identifier=ADP007360 en eng http://www.dtic.mil/docs/citations/ADP007360 APPROVED FOR PUBLIC RELEASE DTIC AND NTIS Geography Air Pollution and Control Geology Geochemistry and Mineralogy Atmospheric Physics *AEROSOLS *HAZE *ARCTIC REGIONS *SPRING SEASON *AIR POLLUTION AIR AIR MASSES AIRCRAFT ATMOSPHERES BOUNDARIES BOUNDARY LAYER COLLECTION DEBRIS DISTRIBUTION ELECTRON MICROSCOPY ELECTRONS ICE INVERSION LAYERS METEOROLOGY MICROSCOPY MORPHOLOGY OPEN WATER PACK ICE PARTICLES PARTICULATES POLLUTION REGIONS RESEARCH AIRCRAFT SAMPLING STRATOSPHERE SUBSTRATES SULFATES SURFACES SYNOPTIC METEOROLOGY TROPOSPHERE WATER SYMPOSIA VOLCANOES Component Reports *Particle analysis AGASP(Arctic Gas and Sampling Program) Cascade impactor Anthropogenic particles Text 1992 ftdtic 2016-02-19T17:39:58Z During the springs of 1983, 1986 and 1989, the Arctic Gas and Aerosol Sampling Program (AGASP) conducted major aircraft-based field experiments over much of the western Arctic. As part of the AGASP research efforts, several regions of the springtime Arctic atmosphere were probed by the NOAA WP-3D Orion research aircraft. These included the marine boundary layer over open water, the surface inversion layer over the pack ice, the background free troposphere, the frequently encountered Arctic haze layers, and the lower stratosphere. Size segregated aerosol samples were collected from these air masses using a three-stage cascade impactor mounted on the aircraft. Individual particle analysis using analytical electron microscopy was performed on each collection substrate to reveal particulate morphology, size distribution and elemental composition information. Results of our studies show that (1) Arctic haze layers are composed largely of sulfates and anthropogenic particles, (2) the synoptic meteorology is an important factor which influences the magnitude of the pollution component in the haze, and (3) the stratospheric aerosols are predominantly H2SO4 droplets, with the exception of those collected in 1983, which showed relatively high crustal particle concentrations due to volcanic debris. Text Arctic Defense Technical Information Center: DTIC Technical Reports database Arctic Orion ENVELOPE(-59.800,-59.800,-62.438,-62.438) |
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Open Polar |
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Defense Technical Information Center: DTIC Technical Reports database |
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ftdtic |
language |
English |
topic |
Geography Air Pollution and Control Geology Geochemistry and Mineralogy Atmospheric Physics *AEROSOLS *HAZE *ARCTIC REGIONS *SPRING SEASON *AIR POLLUTION AIR AIR MASSES AIRCRAFT ATMOSPHERES BOUNDARIES BOUNDARY LAYER COLLECTION DEBRIS DISTRIBUTION ELECTRON MICROSCOPY ELECTRONS ICE INVERSION LAYERS METEOROLOGY MICROSCOPY MORPHOLOGY OPEN WATER PACK ICE PARTICLES PARTICULATES POLLUTION REGIONS RESEARCH AIRCRAFT SAMPLING STRATOSPHERE SUBSTRATES SULFATES SURFACES SYNOPTIC METEOROLOGY TROPOSPHERE WATER SYMPOSIA VOLCANOES Component Reports *Particle analysis AGASP(Arctic Gas and Sampling Program) Cascade impactor Anthropogenic particles |
spellingShingle |
Geography Air Pollution and Control Geology Geochemistry and Mineralogy Atmospheric Physics *AEROSOLS *HAZE *ARCTIC REGIONS *SPRING SEASON *AIR POLLUTION AIR AIR MASSES AIRCRAFT ATMOSPHERES BOUNDARIES BOUNDARY LAYER COLLECTION DEBRIS DISTRIBUTION ELECTRON MICROSCOPY ELECTRONS ICE INVERSION LAYERS METEOROLOGY MICROSCOPY MORPHOLOGY OPEN WATER PACK ICE PARTICLES PARTICULATES POLLUTION REGIONS RESEARCH AIRCRAFT SAMPLING STRATOSPHERE SUBSTRATES SULFATES SURFACES SYNOPTIC METEOROLOGY TROPOSPHERE WATER SYMPOSIA VOLCANOES Component Reports *Particle analysis AGASP(Arctic Gas and Sampling Program) Cascade impactor Anthropogenic particles Sheridan, Patrick J. Schnell, Russell C. Kahl, Jonathan D. Individual Particle Analysis of the Springtime Arctic Aerosol, 1983-1989 |
topic_facet |
Geography Air Pollution and Control Geology Geochemistry and Mineralogy Atmospheric Physics *AEROSOLS *HAZE *ARCTIC REGIONS *SPRING SEASON *AIR POLLUTION AIR AIR MASSES AIRCRAFT ATMOSPHERES BOUNDARIES BOUNDARY LAYER COLLECTION DEBRIS DISTRIBUTION ELECTRON MICROSCOPY ELECTRONS ICE INVERSION LAYERS METEOROLOGY MICROSCOPY MORPHOLOGY OPEN WATER PACK ICE PARTICLES PARTICULATES POLLUTION REGIONS RESEARCH AIRCRAFT SAMPLING STRATOSPHERE SUBSTRATES SULFATES SURFACES SYNOPTIC METEOROLOGY TROPOSPHERE WATER SYMPOSIA VOLCANOES Component Reports *Particle analysis AGASP(Arctic Gas and Sampling Program) Cascade impactor Anthropogenic particles |
description |
During the springs of 1983, 1986 and 1989, the Arctic Gas and Aerosol Sampling Program (AGASP) conducted major aircraft-based field experiments over much of the western Arctic. As part of the AGASP research efforts, several regions of the springtime Arctic atmosphere were probed by the NOAA WP-3D Orion research aircraft. These included the marine boundary layer over open water, the surface inversion layer over the pack ice, the background free troposphere, the frequently encountered Arctic haze layers, and the lower stratosphere. Size segregated aerosol samples were collected from these air masses using a three-stage cascade impactor mounted on the aircraft. Individual particle analysis using analytical electron microscopy was performed on each collection substrate to reveal particulate morphology, size distribution and elemental composition information. Results of our studies show that (1) Arctic haze layers are composed largely of sulfates and anthropogenic particles, (2) the synoptic meteorology is an important factor which influences the magnitude of the pollution component in the haze, and (3) the stratospheric aerosols are predominantly H2SO4 droplets, with the exception of those collected in 1983, which showed relatively high crustal particle concentrations due to volcanic debris. |
author2 |
COLORADO UNIV AT BOULDER |
format |
Text |
author |
Sheridan, Patrick J. Schnell, Russell C. Kahl, Jonathan D. |
author_facet |
Sheridan, Patrick J. Schnell, Russell C. Kahl, Jonathan D. |
author_sort |
Sheridan, Patrick J. |
title |
Individual Particle Analysis of the Springtime Arctic Aerosol, 1983-1989 |
title_short |
Individual Particle Analysis of the Springtime Arctic Aerosol, 1983-1989 |
title_full |
Individual Particle Analysis of the Springtime Arctic Aerosol, 1983-1989 |
title_fullStr |
Individual Particle Analysis of the Springtime Arctic Aerosol, 1983-1989 |
title_full_unstemmed |
Individual Particle Analysis of the Springtime Arctic Aerosol, 1983-1989 |
title_sort |
individual particle analysis of the springtime arctic aerosol, 1983-1989 |
publishDate |
1992 |
url |
http://www.dtic.mil/docs/citations/ADP007360 http://oai.dtic.mil/oai/oai?&verb=getRecord&metadataPrefix=html&identifier=ADP007360 |
long_lat |
ENVELOPE(-59.800,-59.800,-62.438,-62.438) |
geographic |
Arctic Orion |
geographic_facet |
Arctic Orion |
genre |
Arctic |
genre_facet |
Arctic |
op_source |
DTIC AND NTIS |
op_relation |
http://www.dtic.mil/docs/citations/ADP007360 |
op_rights |
APPROVED FOR PUBLIC RELEASE |
_version_ |
1766307809812545536 |