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.

本项目是对阿拉斯加北方库帕鲁克河流域水文研究的延续和扩展。 以往的研究结果表明，北极排水网络的变化，以应对气候变化可能会导致生态地球化学变化影响苔原生态系统。 水文过程响应气候变暖的缓慢变化和年际变率需要一个长期项目来阐明过去十年中的气候/水文过程和时间趋势，在此期间有证据表明空气和土壤温度变暖。 结合实地工作，卫星图像分析和建模将被用来研究导致网络几何形状，土壤水分，积雪融化的变化的因素，以及其他因素，影响养分供应的苔原生态系统。 这项研究是一个长期的，气候，土壤和生物过程控制苔原生态Kuparuk流域，特别是对气候变暖的生态反应的研究组的一个组成部分。