Temporal Variation of Hydrology in the Alaskan Arctic

阿拉斯加北极水文的时间变化

• 批准号: 9814984
• 负责人: Douglas Kane
• 金额: $ 96万
• 依托单位: University of Alaska Fairbanks Campus
• 依托单位国家: 美国
• 项目类别: Continuing Grant
• 财政年份: 1998
• 资助国家: 美国
• 起止时间: 1998-11-15 至 2003-10-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=9814984&HistoricalAwards=false
• 关键词: Temporal; Variation; Hydrology; Alaskan; Arctic

ABSTRACTOPP-9814984KANE, DOUGLASUNIVERSITY OF ALASKA This project is a continuation and expansion of a hydrology study of the Kuparuk River watershed in northern Alaska. Previous results show that changes in Arctic drainage networks in response to climate change may lead to biogeochemical changes affecting tundra ecosystems. The slow change and interannual variability of the hydrologic processes in response to climate warming requires a long-term project to elucidate climate/hydrology process and temporal trends during the past decade during which there is evidence warming air and soil temperatures. A combination of field work, analysis of satellite imagery, and modeling will be used to examine the factors leading to changes in network geometry, soil moisture, snow melt, and other factors that affect nutrient availability in the tundra ecosystem. The study is an integral component of a long-term, group study of climate, soil, and biologic processes controlling tundra ecology in the Kuparuk watershed, particularly the ecological response to a climate warming.

阿拉斯加的道格拉萨（Douglasuniversity）AbstractOpp-9814984Kane这个项目是阿拉斯加北部库帕鲁克河流域的水文研究的延续和扩展。 先前的结果表明，北极排水网络随着气候变化的响应可能导致影响苔原生态系统的生物地球化学变化。 水文过程对气候变暖的缓慢变化和年际变化需要长期项目，以阐明气候/水文过程和时间趋势在过去的十年中，在此期间，有证据表明空气和土壤温度变暖。 现场工作，卫星图像分析和建模的结合将用于检查导致网络几何形状，土壤水分，雪融化的变化以及影响苔原生态系统中养分可用性的其他因素。 这项研究是对库帕鲁克流域中控制苔原生态的气候，土壤和生物过程的长期研究的组成部分，尤其是对气候变暖的生态反应。