Mean annual precipitation for Ohio, 1931-80

This coverage is intended as a data layer representing the spatial
distribution of mean annual precipitation in Ohio for the years 1931-80.
Information contained in this coverage has been used to obtain values of mean
annual precipitation at basin centroid locations.

Any use of trade, product, or firm names is for descriptive purposes only and
does not imply endorsement by the U.S. Government.

Although this Federal Geographic Data Committee-compliant metadata file is
intended to document the data set in nonproprietary form, as well as in ArcInfo
format, this metadata file may include some ArcInfo-specific terminology.

This is a Triangulated Irregular Network (TIN) of mean annual precipitation for
the period 1931-80 for Ohio.

A 1:1,100,000 scale (approximate) paper isoline map of mean annual
precipitation from Harstine (1991) was digitized as arcs directly into an
Albers equal-area projection. The arc coverage was projected to the State Plane
Coordinate system, zone 5001, and then converted to a TIN by means of the
"arctin" command.