Aerial Photography Methodology MRAP Level IV-Land Use

Level IV of the MRAP land use study is the methodology developed to use aerial photographs to determine land use and nonpoint source pollution within minor watersheds. These data were then to be transformed onto GIS maps. The type of photography used was color infrared aerial photography (CIR). The CIR pictures allow more accurate interpretation of land use type through greater definition. Through this process land use types that both contributed to and abated pollution were identified and mapped.