Recent Climatic Fluctuations of the Canadian High Arctic and Their Significance for Glaciology

Bradley, Raymond S.; England, John

doi:10.2307/1550739

Cited by 44 publications

(33 citation statements)

References 27 publications

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“…Of the seven different regional coldest years, only one was before 1963. This fits with the work of Bradley (1973) and Bradley and England (1978) which pointed out marked summer temperature decreases after about 1963/1964 in the Eastern and Northern Arctic. A comparison of mean maximum July temperatures (a common index of glacial ablation season conditions) for 1948-1963 and 1964-1976 for the 11 representative stations of the five climatic regions (Table 8) showed decreases up to 1.6,1.9 and 1.4"C for the period after 1963 in regions I, IV and V (Northwestern, Eastern, and Northern) respectively and increases under 0.6"C in regions I1 and I11 (South-Central and Western).…”

Section: Recent Regional Variations In Climatesupporting

confidence: 92%

Climatic Regions of the Canadian Arctic Islands

Maxwell¹

1981

ARCTIC

133

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ABSTRACT. As a result of a comprehensive assessment of the climate of the Canadian Arctic Islands and adjacent waters, five climatic regions were identified. The regional boundaries were delineated by an analysis of the influence of the major climatic controls while further regional subdivisions were arrived at through consideration of the fields of the standard observed meteorological elements. Short discussions of the climatic characteristics of each sub-region are given and tables outlining values of selected climatic elements are presented. A brief discussion of climatic change across the entire area is included.

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Section: Recent Regional Variations In Climatesupporting

confidence: 92%

Climatic Regions of the Canadian Arctic Islands

Maxwell¹

1981

ARCTIC

133

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“…This is consistent with a known shift towards cooler summers and increased precipitation over the eastern Canadian Arctic (Bradley and Miller, 1972;Bradley and England, 1978). Hattersley-Smith and Serson estimated a mass balance for the 1971/1972 season of +0.14 m w.e.…”

Section: Previous Worksupporting

confidence: 81%

Rapid wastage of the Hazen Plateau ice caps, northeastern Ellesmere Island, Nunavut, Canada

et al. 2017

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Abstract. Two pairs of small stagnant ice bodies on the Hazen Plateau of northeastern Ellesmere Island, the St. Patrick Bay ice caps and the Murray and Simmons ice caps, are rapidly shrinking, and the remnants of the St. Patrick Bay ice caps are likely to disappear entirely within the next 5 years. Vertical aerial photographs of these Little Ice Age relics taken during August of 1959 show that the larger of the St. Patrick Bay ice caps had an area of 7.48 km 2 and the smaller one 2.93 km 2 ; the Murray and Simmons ice caps covered 4.37 and 7.45 km 2 respectively. Outlines determined from ASTER satellite data for July 2016 show that, compared to 1959, the larger and the smaller of the St. Patrick Bay ice caps had both been reduced to only 5 % of their former area, with the Murray and Simmons ice caps faring better at 39 and 25 %, likely reflecting their higher elevation. Consistent with findings from other glaciological studies in the Queen Elizabeth Islands, ASTER imagery in conjunction with past GPS surveys documents a strikingly rapid wastage of the St. Patrick Bay ice caps over the last 15 years. These two ice caps shrank noticeably even between 2014 and 2015, apparently in direct response to the especially warm summer of 2015 over northeastern Ellesmere Island. The welldocumented recession patterns of the Hazen Plateau ice caps over the last 55+ years offer an opportunity to examine the processes of plant recolonization of polar landscapes.

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“…We object to correction for trace amounts in the United States rain gage network because (1) these corrections constitute a negligible amount to monthly totals everywhere, except in the Arctic where traces can constitute several percent [Bradley and England, 1978 Y&G note that a definition of frozen precipitation is not given by G. They specifically inquire about mixed precipitation and request a clarification of how to handle this type of precipitation. Mixture of rain and snow does not count as frozen precipitation.…”

Section: Example Of Adjustmentsmentioning

confidence: 99%