A Winter Season Synoptic Climatology of Alaska: 1956-1986
An objective, descriptive study of Alaska's winter climate is undertaken to identify regional monthly mean surface temperature and precipitation variability during the thirty-year period from 1956-57 to 1985-86. Ten basic anomaly 700-mb height patterns are described in terms of frequency of occ...
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ftdtic:ADP007289 2023-05-15T15:10:37+02:00 A Winter Season Synoptic Climatology of Alaska: 1956-1986 Milkovich, Mary F. ALASKA UNIV FAIRBANKS INST OF MARINE SCIENCE 1992-03 text/html http://www.dtic.mil/docs/citations/ADP007289 http://oai.dtic.mil/oai/oai?&verb=getRecord&metadataPrefix=html&identifier=ADP007289 en eng http://www.dtic.mil/docs/citations/ADP007289 APPROVED FOR PUBLIC RELEASE DTIC AND NTIS Meteorology *CLIMATE *SYNOPTIC METEOROLOGY ALASKA ANOMALIES PATTERNS PRECIPITATION RECORDS SURFACE TEMPERATURE SURFACES TEMPERATURE VARIABLES WINTER GREENHOUSE EFFECT ENVIRONMENTAL IMPACT *Global climate change Component Reports *Climate variability Text 1992 ftdtic 2016-02-19T17:39:19Z An objective, descriptive study of Alaska's winter climate is undertaken to identify regional monthly mean surface temperature and precipitation variability during the thirty-year period from 1956-57 to 1985-86. Ten basic anomaly 700-mb height patterns are described in terms of frequency of occurrence and possible associations with the surface climate variability observed in the nine NOAA land-based climate divisions of Alaska and the Gulf of Alaska (tenth division). Results indicate a cool, dry period from 1964-1976. Anomaly height patterns occurring during this period were predominantly characterized by northerly/northwesterly flow from the High Arctic or northeasterly flow from the Canadian Interior. The period from 1956-1962 was generally warm, and the most frequently occurring anomaly height patterns were characterized by southerly flow. The period following 1977 is the most variable of the thirty-year record. This period also includes some of the warmest temperatures seen in the records. Cold anomaly height patterns are interspersed among the slightly more frequent warm anomaly height patterns from 1977-1986. Overall seasonal-scale linear (best-fit approximations) trends appear to indicate a warmer, drier shift in the Interior climate and a warmer, wetter shift in the southern coastal climate. 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, p210-219. See also Volume 2, AD-A253 028. Text Arctic Climate change Alaska Defense Technical Information Center: DTIC Technical Reports database Arctic Fairbanks Gulf of Alaska |
institution |
Open Polar |
collection |
Defense Technical Information Center: DTIC Technical Reports database |
op_collection_id |
ftdtic |
language |
English |
topic |
Meteorology *CLIMATE *SYNOPTIC METEOROLOGY ALASKA ANOMALIES PATTERNS PRECIPITATION RECORDS SURFACE TEMPERATURE SURFACES TEMPERATURE VARIABLES WINTER GREENHOUSE EFFECT ENVIRONMENTAL IMPACT *Global climate change Component Reports *Climate variability |
spellingShingle |
Meteorology *CLIMATE *SYNOPTIC METEOROLOGY ALASKA ANOMALIES PATTERNS PRECIPITATION RECORDS SURFACE TEMPERATURE SURFACES TEMPERATURE VARIABLES WINTER GREENHOUSE EFFECT ENVIRONMENTAL IMPACT *Global climate change Component Reports *Climate variability Milkovich, Mary F. A Winter Season Synoptic Climatology of Alaska: 1956-1986 |
topic_facet |
Meteorology *CLIMATE *SYNOPTIC METEOROLOGY ALASKA ANOMALIES PATTERNS PRECIPITATION RECORDS SURFACE TEMPERATURE SURFACES TEMPERATURE VARIABLES WINTER GREENHOUSE EFFECT ENVIRONMENTAL IMPACT *Global climate change Component Reports *Climate variability |
description |
An objective, descriptive study of Alaska's winter climate is undertaken to identify regional monthly mean surface temperature and precipitation variability during the thirty-year period from 1956-57 to 1985-86. Ten basic anomaly 700-mb height patterns are described in terms of frequency of occurrence and possible associations with the surface climate variability observed in the nine NOAA land-based climate divisions of Alaska and the Gulf of Alaska (tenth division). Results indicate a cool, dry period from 1964-1976. Anomaly height patterns occurring during this period were predominantly characterized by northerly/northwesterly flow from the High Arctic or northeasterly flow from the Canadian Interior. The period from 1956-1962 was generally warm, and the most frequently occurring anomaly height patterns were characterized by southerly flow. The period following 1977 is the most variable of the thirty-year record. This period also includes some of the warmest temperatures seen in the records. Cold anomaly height patterns are interspersed among the slightly more frequent warm anomaly height patterns from 1977-1986. Overall seasonal-scale linear (best-fit approximations) trends appear to indicate a warmer, drier shift in the Interior climate and a warmer, wetter shift in the southern coastal climate. 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, p210-219. See also Volume 2, AD-A253 028. |
author2 |
ALASKA UNIV FAIRBANKS INST OF MARINE SCIENCE |
format |
Text |
author |
Milkovich, Mary F. |
author_facet |
Milkovich, Mary F. |
author_sort |
Milkovich, Mary F. |
title |
A Winter Season Synoptic Climatology of Alaska: 1956-1986 |
title_short |
A Winter Season Synoptic Climatology of Alaska: 1956-1986 |
title_full |
A Winter Season Synoptic Climatology of Alaska: 1956-1986 |
title_fullStr |
A Winter Season Synoptic Climatology of Alaska: 1956-1986 |
title_full_unstemmed |
A Winter Season Synoptic Climatology of Alaska: 1956-1986 |
title_sort |
winter season synoptic climatology of alaska: 1956-1986 |
publishDate |
1992 |
url |
http://www.dtic.mil/docs/citations/ADP007289 http://oai.dtic.mil/oai/oai?&verb=getRecord&metadataPrefix=html&identifier=ADP007289 |
geographic |
Arctic Fairbanks Gulf of Alaska |
geographic_facet |
Arctic Fairbanks Gulf of Alaska |
genre |
Arctic Climate change Alaska |
genre_facet |
Arctic Climate change Alaska |
op_source |
DTIC AND NTIS |
op_relation |
http://www.dtic.mil/docs/citations/ADP007289 |
op_rights |
APPROVED FOR PUBLIC RELEASE |
_version_ |
1766341605535514624 |