|We suggest that you have this map shipped rolled in a tube, as it is printed on heavy paper and will crack if folded.|
This groundwater-recharge map uses an objective, reproducible method to estimate diffuse groundwater recharge rates in Indiana, developed by conducting a multiple regression analysis to relate groundwater recharge to characteristics of near-surface geologic materials. The regression model was based on a conceptual model of diffuse groundwater recharge in humid temperate climates, which is controlled not only by near-surface processes such as climate but also by topographic position, the geology and land cover, and the position of the water table. In Indiana, the unsaturated thickness is not as great as it is in more arid environments, and so the depth to the water table and the characteristics of the unsaturated zone are important. The important variables were hypothesized to represent climate, topographic parameters that might describe preferential flow to the water table, soils and geologic characteristics of the ground surface (including land cover), and the unsaturated zone.
Letsinger, S. L., 2015, Map of Indiana showing near-surface aquifer recharge: Indiana Geological Survey Miscellaneous Map 92, scale 1:500,000.
You may also like:
Can't find what you're looking for? Feel free to contact us directly:
Publication Sales Office
Indiana Geological and Water Survey
611 North Walnut Grove
Bloomington, IN 47405-2208
IGS Return Policy
All sales are final. Materials may not be returned after they have been accepted by the customer. Any discrepencies in mail orders must be reported to IGWS within 10 days of receipt of order.
The Indiana Geological and Water Survey will refund the purchase price and sales tax of products if returned with the original sales receipt within 10 days of receipt of order. Refunds will be issued with the same method of payment as indicated on the original receipt except for cash purchases, which will be refunded by check. Items must be returned in the same condition as purchased. Refunds on digital products and services are not allowed, except for defective media such as CD-ROMs, flash drives, and so on. The customer is responsible for paying shipping costs to return items.