Groundwater recharge during spring thaw in the Prairie Pothole Region of North America
by Brenton Sharratt
International Journal of Water (IJW), Vol. 5, No. 2, 2009

Abstract: Snowmelt governs recharge in the Prairie Pothole Region of North America, but little is known about the soil at the time of recharge. Depth of snow, surface water, water table, and frozen soil were measured within a 2-ha landscape depression in Minnesota during spring thaw in 2000 and 2001. The water table rose by at least 1 m within 24 h after a pond formed within the landscape depression as a result of snowmelt. Recharge of groundwater is a seemingly localised process where surface water infiltrates via unfrozen conduits or soil matrix beneath an ephemeral pond within a prairie pothole.

Online publication date: Fri, 25-Sep-2009

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