Interannual Changes in Northern Hemispheric Tropospheric Temperatures, 1960-1989
Tropospheric temperatures were calculated from geopotential thicknesses based on analyzed data for two layers, 850-700 and 700-500 hPa, for the past three decades. Comparison of the interannual changes in thickness temperatures with radiosonde thickness temperature and surface temperatures show subs...
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ftdtic:ADP007281 2023-05-15T13:15:01+02:00 Interannual Changes in Northern Hemispheric Tropospheric Temperatures, 1960-1989 Herbert, Gary A. ENVIRONMENTAL RESEARCH LABS BOULDER CO CLIMATE MONITORING AND DIAGNOSTIC LAB 1992-03 text/html http://www.dtic.mil/docs/citations/ADP007281 http://oai.dtic.mil/oai/oai?&verb=getRecord&metadataPrefix=html&identifier=ADP007281 en eng http://www.dtic.mil/docs/citations/ADP007281 APPROVED FOR PUBLIC RELEASE DTIC AND NTIS Meteorology *SEASONS *TEMPERATURE *MONITORING *TROPOSPHERE *METEOROLOGICAL DATA COMPARISON COOLING GEOPOTENTIAL POLAR REGIONS RADIOSONDES REGIONS SURFACE TEMPERATURE THICKNESS VOLCANOES GREENHOUSE EFFECT ENVIRONMENTAL IMPACT NORTHERN HEMISPHERE *Global climate change Component Reports International temperature changes Text 1992 ftdtic 2016-02-19T17:39:13Z Tropospheric temperatures were calculated from geopotential thicknesses based on analyzed data for two layers, 850-700 and 700-500 hPa, for the past three decades. Comparison of the interannual changes in thickness temperatures with radiosonde thickness temperature and surface temperatures show substantial agreement, especially at the time of major changes such as cooling periods after the eruption of the Agung and El Chichon volcanoes. The temperature increase between two 13-year periods, 1964-1976 and 1977-1989, was greatest the winter season at both levels. The increase in temperature of the 850-100 hPa layer exceeded that of 700-500 hPa layer for comparable times of the year and grids. The polar region showed the largest temperature change. A plot of the 850-700 hPa layer, winter temperature changes for the octagonal grid, shows the largest positive change over Alaska, northern Canada, and western China. The dominant cooling occurred over the north Pacific and western Europe. The warm-cold couplet in the north Pacific suggests a change in the strength of the Aleutian low. This article is from 'Proceedings of the International Conference on the Role of the Polar Regions in Global Change Held in Fairbanks, Alaska on 11-15 June 1990. Volume 1', AD-A253 027, p159-163. Text aleutian low Alaska Defense Technical Information Center: DTIC Technical Reports database Canada Fairbanks Pacific |
institution |
Open Polar |
collection |
Defense Technical Information Center: DTIC Technical Reports database |
op_collection_id |
ftdtic |
language |
English |
topic |
Meteorology *SEASONS *TEMPERATURE *MONITORING *TROPOSPHERE *METEOROLOGICAL DATA COMPARISON COOLING GEOPOTENTIAL POLAR REGIONS RADIOSONDES REGIONS SURFACE TEMPERATURE THICKNESS VOLCANOES GREENHOUSE EFFECT ENVIRONMENTAL IMPACT NORTHERN HEMISPHERE *Global climate change Component Reports International temperature changes |
spellingShingle |
Meteorology *SEASONS *TEMPERATURE *MONITORING *TROPOSPHERE *METEOROLOGICAL DATA COMPARISON COOLING GEOPOTENTIAL POLAR REGIONS RADIOSONDES REGIONS SURFACE TEMPERATURE THICKNESS VOLCANOES GREENHOUSE EFFECT ENVIRONMENTAL IMPACT NORTHERN HEMISPHERE *Global climate change Component Reports International temperature changes Herbert, Gary A. Interannual Changes in Northern Hemispheric Tropospheric Temperatures, 1960-1989 |
topic_facet |
Meteorology *SEASONS *TEMPERATURE *MONITORING *TROPOSPHERE *METEOROLOGICAL DATA COMPARISON COOLING GEOPOTENTIAL POLAR REGIONS RADIOSONDES REGIONS SURFACE TEMPERATURE THICKNESS VOLCANOES GREENHOUSE EFFECT ENVIRONMENTAL IMPACT NORTHERN HEMISPHERE *Global climate change Component Reports International temperature changes |
description |
Tropospheric temperatures were calculated from geopotential thicknesses based on analyzed data for two layers, 850-700 and 700-500 hPa, for the past three decades. Comparison of the interannual changes in thickness temperatures with radiosonde thickness temperature and surface temperatures show substantial agreement, especially at the time of major changes such as cooling periods after the eruption of the Agung and El Chichon volcanoes. The temperature increase between two 13-year periods, 1964-1976 and 1977-1989, was greatest the winter season at both levels. The increase in temperature of the 850-100 hPa layer exceeded that of 700-500 hPa layer for comparable times of the year and grids. The polar region showed the largest temperature change. A plot of the 850-700 hPa layer, winter temperature changes for the octagonal grid, shows the largest positive change over Alaska, northern Canada, and western China. The dominant cooling occurred over the north Pacific and western Europe. The warm-cold couplet in the north Pacific suggests a change in the strength of the Aleutian low. This article is from 'Proceedings of the International Conference on the Role of the Polar Regions in Global Change Held in Fairbanks, Alaska on 11-15 June 1990. Volume 1', AD-A253 027, p159-163. |
author2 |
ENVIRONMENTAL RESEARCH LABS BOULDER CO CLIMATE MONITORING AND DIAGNOSTIC LAB |
format |
Text |
author |
Herbert, Gary A. |
author_facet |
Herbert, Gary A. |
author_sort |
Herbert, Gary A. |
title |
Interannual Changes in Northern Hemispheric Tropospheric Temperatures, 1960-1989 |
title_short |
Interannual Changes in Northern Hemispheric Tropospheric Temperatures, 1960-1989 |
title_full |
Interannual Changes in Northern Hemispheric Tropospheric Temperatures, 1960-1989 |
title_fullStr |
Interannual Changes in Northern Hemispheric Tropospheric Temperatures, 1960-1989 |
title_full_unstemmed |
Interannual Changes in Northern Hemispheric Tropospheric Temperatures, 1960-1989 |
title_sort |
interannual changes in northern hemispheric tropospheric temperatures, 1960-1989 |
publishDate |
1992 |
url |
http://www.dtic.mil/docs/citations/ADP007281 http://oai.dtic.mil/oai/oai?&verb=getRecord&metadataPrefix=html&identifier=ADP007281 |
geographic |
Canada Fairbanks Pacific |
geographic_facet |
Canada Fairbanks Pacific |
genre |
aleutian low Alaska |
genre_facet |
aleutian low Alaska |
op_source |
DTIC AND NTIS |
op_relation |
http://www.dtic.mil/docs/citations/ADP007281 |
op_rights |
APPROVED FOR PUBLIC RELEASE |
_version_ |
1766266544325656576 |