SPARROW: Attributes for MRB_E2RF1 Catchments by Major River Basins in the Conterminous United States

Science Center Objects

The national databases used in USGS SPARROW models are available for download. Attributes from the RF1 data set, such as climate, geology, soils, land cover, hydrologic variables, physical characteristics, chemicals, and nutrients, are available for all catchments in the digital stream networks (1:100K scale).

Vist the national USGS SPARROW website for a complete overview of SPARROW.

 

CLIMATE

These data sets represent the average for each climatic variable for MRB_E2RF1 catchments in the conterminous United States.

 

GEOLOGY/SOILS

These data sets represent the area of each variable type in square meters compiled for MRB_E2RF1 catchments in the conterminous United States.

 

LAND

These data sets represent the estimated area of each variable type in square meters compiled for MRB_E2RF1 catchments in the conterminous United States.

 

HYDROLOGIC VARIABLES

These data sets represent the average for each flow variable for MRB_E2RF1 catchments in the conterminous United States.

 

PHYSICAL MEASURES

 

 

CHEMICAL

These data sets represent the average or total of each variable compiled for MRB_E2RF1 catchments in the conterminous United States.

 

STREAM NETWORKS AND CATCHMENTS