Simulations of Historical and Future Trends in Snowfall and Groundwater Recharge for Basins Draining to Long Island Sound

Earth Interactions

David M.Bjerklie¹ 

关键词: Watershed modeling;    Climate change;    Groundwater recharge;    Snowfall trends;    Groundwater recharge trends;   

DOI  :  10.1175/2011EI374.1

学科分类：地球科学(综合)

来源: American Geophysical Union

【 摘 要 】

AbstractA regional watershed model was developed for watersheds contributing to Long Island Sound, including the Connecticut River basin. The study region covers approximately 40 900 km2, extending from a moderate coastal climate zone in the south to a mountainous northern New England climate zone dominated by snowmelt in the north. The input data indicate that precipitation and temperature have been increasing for the last 46 years (1961–2006) across the region. Minimum temperature has increased more than maximum temperature over the same period (1961–2006). The model simulation indicates that there was an upward trend in groundwater recharge across most of the modeled region. However, trends in increasing precipitation and groundwater recharge are not significant at the 0.05 level if the drought of 1961–67 is removed from the time series. The trend in simulated snowfall is not significant across much of the region, although there is a significant downward trend in southeast Connecticut and in central Ma...

【 授权许可】

Unknown