Knowledge Resource Center for Ecological Environment in Arid Area
DOI | 10.2166/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
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ISSN | 0029-1277 |
EISSN | 2224-7955 |
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 |
推荐引用方式 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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