The feasibility of making regional estimates of groundwater resources have been demonstrated in Minnesota. Data from three research approaches were used to estimate groundwater resources: (1) groundwater contribution to the streamflow; (2) 30-day low flow characteristics of Minnesota streams; (3) groundwater hydrographs. Comparison of results of the three methods shows that values derived from groundwater hydrographs and data on groundwater contribution to streams are relatively close. Values derived from low-flow data, however, were consistently smaller. This discrepancy is related to two factors: (1) the limited time for which records of low-flow measurement were available; (2) the severely limited accuracy of low-flow estimates. However, the use of all three methods in conjunction does provide meaningful estimates of groundwater resources.
|Original language||English (US)|
|Number of pages||8|
|Journal||IN: III WORLD CONGRESS ON WATER RESOURCES,|
|Volume||5 , Washington, D.C., U.S.A., Int. Water Resour. Assoc., no date, Subtheme 4|
|Issue number||(Mexico City, Mexico: Apr. 23-27, 1979)|
|State||Published - Jan 1 1979|