RADIATIVE REGIME OVER ARCTIC TUNDRA
Incoming short wave, total incoming, and net total radiation were measured continuously near Point Barrow, Alaska (71 degrees N), in 1964 using Kipp and Zonen solarimeters and C.S.I.R.O. radiometers. The incoming short wave radiation reached a maximum monthly energy sum in May. The sum for the year...
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ftdtic:AD0665968 2023-05-15T13:10:54+02:00 RADIATIVE REGIME OVER ARCTIC TUNDRA Lieske,Bruce J. Stroschein,Leander A. WASHINGTON UNIV SEATTLE DEPT OF ATMOSPHERIC SCIENCES 1968-01 text/html http://www.dtic.mil/docs/citations/AD0665968 http://oai.dtic.mil/oai/oai?&verb=getRecord&metadataPrefix=html&identifier=AD0665968 en eng http://www.dtic.mil/docs/citations/AD0665968 APPROVED FOR PUBLIC RELEASE DTIC AND NTIS Meteorology (*SOLAR RADIATION ARCTIC REGIONS) (*TERRAIN ALASKA ALBEDO SNOW MELTING SURFACES CLIMATE ATMOSPHERIC PRECIPITATION CLOUD COVER METEOROLOGICAL INSTRUMENTS ATMOSPHERIC TEMPERATURE SOIL MECHANICS Text 1968 ftdtic 2016-02-18T20:50:08Z Incoming short wave, total incoming, and net total radiation were measured continuously near Point Barrow, Alaska (71 degrees N), in 1964 using Kipp and Zonen solarimeters and C.S.I.R.O. radiometers. The incoming short wave radiation reached a maximum monthly energy sum in May. The sum for the year was 343 kJ cm-2. Monthly energy sums of incoming long wave radiation exceeded those of incoming short wave radiation in every month except April and May. The maximum occurred in August, and the sum for the year was 737 kJ cm-2. The net total radiation reached a minimum of -7.7 kJ cm-2 in March and a maximum of 43.2 kJ cm-2 in June; the annual balance was 63.8 kJ cm-2. The radiative regime changed markedly with the melting of the snow in late May, and with the onset of appreciable snow cover in late September. Measurements of tundra albedo during the summer indicated values of 4-34% for various surfaces. The albedo of the grassy surface under the net total radiometer averaged 24%. Empirical relationships were derived for net long wave radiation as a function of cloudiness, and with clear skies as a function of screen temperature. The relationships are similar to those found by Liljequist at Maudheim, Antarctica (71 degrees S). (Author) Text albedo Antarc* Antarctica Arctic Barrow Point Barrow Tundra Alaska Defense Technical Information Center: DTIC Technical Reports database Arctic Maudheim ENVELOPE(-10.925,-10.925,-71.043,-71.043) |
institution |
Open Polar |
collection |
Defense Technical Information Center: DTIC Technical Reports database |
op_collection_id |
ftdtic |
language |
English |
topic |
Meteorology (*SOLAR RADIATION ARCTIC REGIONS) (*TERRAIN ALASKA ALBEDO SNOW MELTING SURFACES CLIMATE ATMOSPHERIC PRECIPITATION CLOUD COVER METEOROLOGICAL INSTRUMENTS ATMOSPHERIC TEMPERATURE SOIL MECHANICS |
spellingShingle |
Meteorology (*SOLAR RADIATION ARCTIC REGIONS) (*TERRAIN ALASKA ALBEDO SNOW MELTING SURFACES CLIMATE ATMOSPHERIC PRECIPITATION CLOUD COVER METEOROLOGICAL INSTRUMENTS ATMOSPHERIC TEMPERATURE SOIL MECHANICS Lieske,Bruce J. Stroschein,Leander A. RADIATIVE REGIME OVER ARCTIC TUNDRA |
topic_facet |
Meteorology (*SOLAR RADIATION ARCTIC REGIONS) (*TERRAIN ALASKA ALBEDO SNOW MELTING SURFACES CLIMATE ATMOSPHERIC PRECIPITATION CLOUD COVER METEOROLOGICAL INSTRUMENTS ATMOSPHERIC TEMPERATURE SOIL MECHANICS |
description |
Incoming short wave, total incoming, and net total radiation were measured continuously near Point Barrow, Alaska (71 degrees N), in 1964 using Kipp and Zonen solarimeters and C.S.I.R.O. radiometers. The incoming short wave radiation reached a maximum monthly energy sum in May. The sum for the year was 343 kJ cm-2. Monthly energy sums of incoming long wave radiation exceeded those of incoming short wave radiation in every month except April and May. The maximum occurred in August, and the sum for the year was 737 kJ cm-2. The net total radiation reached a minimum of -7.7 kJ cm-2 in March and a maximum of 43.2 kJ cm-2 in June; the annual balance was 63.8 kJ cm-2. The radiative regime changed markedly with the melting of the snow in late May, and with the onset of appreciable snow cover in late September. Measurements of tundra albedo during the summer indicated values of 4-34% for various surfaces. The albedo of the grassy surface under the net total radiometer averaged 24%. Empirical relationships were derived for net long wave radiation as a function of cloudiness, and with clear skies as a function of screen temperature. The relationships are similar to those found by Liljequist at Maudheim, Antarctica (71 degrees S). (Author) |
author2 |
WASHINGTON UNIV SEATTLE DEPT OF ATMOSPHERIC SCIENCES |
format |
Text |
author |
Lieske,Bruce J. Stroschein,Leander A. |
author_facet |
Lieske,Bruce J. Stroschein,Leander A. |
author_sort |
Lieske,Bruce J. |
title |
RADIATIVE REGIME OVER ARCTIC TUNDRA |
title_short |
RADIATIVE REGIME OVER ARCTIC TUNDRA |
title_full |
RADIATIVE REGIME OVER ARCTIC TUNDRA |
title_fullStr |
RADIATIVE REGIME OVER ARCTIC TUNDRA |
title_full_unstemmed |
RADIATIVE REGIME OVER ARCTIC TUNDRA |
title_sort |
radiative regime over arctic tundra |
publishDate |
1968 |
url |
http://www.dtic.mil/docs/citations/AD0665968 http://oai.dtic.mil/oai/oai?&verb=getRecord&metadataPrefix=html&identifier=AD0665968 |
long_lat |
ENVELOPE(-10.925,-10.925,-71.043,-71.043) |
geographic |
Arctic Maudheim |
geographic_facet |
Arctic Maudheim |
genre |
albedo Antarc* Antarctica Arctic Barrow Point Barrow Tundra Alaska |
genre_facet |
albedo Antarc* Antarctica Arctic Barrow Point Barrow Tundra Alaska |
op_source |
DTIC AND NTIS |
op_relation |
http://www.dtic.mil/docs/citations/AD0665968 |
op_rights |
APPROVED FOR PUBLIC RELEASE |
_version_ |
1766245146657030144 |