Vulnerability of shallow ground water and drinking-water wells to nitrate in the United States: Model of predicted nitrate concentration in shallow, recently recharged ground water -- Input data set for clay sediment (gwava-s_clay)
This data set represents the amount of clay sediment in the
soil, in percent times 1000, in the conterminous United States.
The data set was used as an input data layer for a national
model to predict nitrate concentration in shallow ground water.
Nolan and Hitt (2006) developed two national models to predict …