Browsing by Author "Brown, Dwight A."
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Item Crop production response to moisture supply in Minnesota.(University of Minnesota, Water Resources Research Center, 1987-06) Brown, Dwight A.; Gersmehl, Carol A.; Drake, Janet; Skaggs, Richard H.The purpose of this report is to define how variations in moisture affect state-wide crop production. To accomplish this goal we controlled geographic variations in the response of crops to changing technology, and regional differences in the severity and timing of wet and dry periods. The regional differences from local norms or unexpected values. Technology changes are controlled by subtracting the general trend in yield from the actual yield technology.Item File structure design and data specifications for water resources geographic information systems(University of Minnesota, Water Resources Research Center, 1987-06) Brown, Dwight A.; Gersmehl, Philip J.Item Relationship between climate and the mean annual flow of the Mississippi River at St. Paul(University of Minnesota Water Resources Research Center, 1987-06) Skaggs, Richard H.; Brown, Dwight A.This study demonstrates the use of the simulation of water balance for large areas. It examines the statistical relationship between the mean annual flow of the Mississippi River at St. Paul and the water balance surpluses (water not used in evapotranspiration and soil moisture storage) for the six climatological divisions of Minnesota that contribute to the drainage of the Mississippi and Minnesota Rivers in Minnesota.Item Twin Cities surface water simulation modeling demonstration(University of Minnesota, Water Resources Research Center, 1987-06) Anderson, Kevin L.; Corbett, John D.; Dunning, Nicholas P.; Gresmehl, Carol A.; Greene, Richard P.; Gersmehl, Philip J.; Brown, Dwight A.This report looks at how a water-resources geographic information system (GIS) and computer program can simulate runoff from storm events.