Arid
DOI10.2166/nh.2010.219
Summer hydroclimatology of an extensive low-gradient wetland: Polar Bear Pass, Bathurst Island, Nunavut, Canada
Young, Kathy L.1; Labine, Claude2
通讯作者Young, Kathy L.
来源期刊HYDROLOGY RESEARCH
ISSN0029-1277
EISSN2224-7955
出版年2010
卷号41期号:6页码:492-502
英文摘要

Polar Bear Pass (PBP) (75 degrees 40’N, 98 degrees 30’W) is considered a critical wetland area for migratory birds, caribou and muskox. Little is known of its climatology and hydrology. Here we evaluate both the short-term and long-term summer climatic record for this wetland. A 10m high automatic weather station (AWS) was established here 27 years ago, and in 2007 this centrally located AWS was supplemented by three more weather stations placed across the wetland pass. The long-term climate record here indicates little significant departure when compared to the long- term climate means (1971-2005) at Resolute Bay, a government weather station lying 90km to the southwest (74 degrees 43’N, 94 degrees 59’W). Exceptions exist for July minimum air temperature (PBP. Resolute) and number of days in June, July and August, < 0 degrees C (PBP < Resolute). Climate variability from year to year remains the norm. Radiation receipt, air temperature, humidity and wind speed vary little across the wetland pass, while terrain-modified fluxes do. The precipitation regime is similar to Resolute Bay but local site conditions modify the amounts. In 2007, July evaporation levels were twice as high as that of 2008; more akin to Low Arctic sites. As yet, no clear trend in long- term climatic signals can be established.


英文关键词Arctic wetlands climate variability evaporation hydroclimatology northern wetlands
类型Article
语种英语
国家Canada
收录类别SCI-E
WOS记录号WOS:000282363300005
WOS关键词AIR-TEMPERATURE ; DISCONTINUOUS PERMAFROST ; NORTHWEST-TERRITORIES ; OASIS ENVIRONMENT ; ELLESMERE-ISLAND ; CLIMATE ; VEGETATION ; HYDROLOGY ; PONDS ; DYNAMICS
WOS类目Water Resources
WOS研究方向Water Resources
资源类型期刊论文
条目标识符http://119.78.100.177/qdio/handle/2XILL650/164544
作者单位1.York Univ, Dept Geog, Toronto, ON M3J 1P3, Canada;
2.Campbell Sci Canada Corp, Edmonton, AB T5M 1W7, Canada
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GB/T 7714
Young, Kathy L.,Labine, Claude. Summer hydroclimatology of an extensive low-gradient wetland: Polar Bear Pass, Bathurst Island, Nunavut, Canada[J],2010,41(6):492-502.
APA Young, Kathy L.,&Labine, Claude.(2010).Summer hydroclimatology of an extensive low-gradient wetland: Polar Bear Pass, Bathurst Island, Nunavut, Canada.HYDROLOGY RESEARCH,41(6),492-502.
MLA Young, Kathy L.,et al."Summer hydroclimatology of an extensive low-gradient wetland: Polar Bear Pass, Bathurst Island, Nunavut, Canada".HYDROLOGY RESEARCH 41.6(2010):492-502.
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