Distance to the nearest stream by stream order for selected watersheds in the United States

​Accurate representation of stream networks at various scales in a hydrogeologic system is integral to modeling groundwater-stream interactions at the continental scale. To assess the accurate representation of stream networks, the distance of a point on the land surface to the nearest stream (DS) has been calculated. DS was calculated from the 30-meter Multi Order Hydrologic Postion (MOHP) raster datasets for 18 watersheds in the United States that have been prioritized for intensive monitoring and assessment by the U.S. Geological Survey. DS was calculated by multiplying the 30-meter MOHP 30-meter MOHP Distance from Stream Divide (DSD) datasets by a fraction of the Lateral Position (LP) datasets for stream orders one through five. DS was calculated for the purposes of considering the spatial scale needed for accurate representation of groundwater-stream interaction at the continental scale for a grid with uniform cell sizes. The data are available at the 30-meter resolution as multi-banded GeoTIFF files, where each band is a stream order, and as Comma Separated Value formatted files where each column is a stream order.