The Ohio State University 1983-06 Photographic History of Forest Encroachment in Several Relict Prairies of the Edge of Appalachia Preserve System , Adams County ,
Forest encroachment into several relict prairies located within the Edge of Appalachia Preserve System, Adams County, Ohio, was studied using a series of U.S.D.A. aerial photographs taken in 1938, 1950, 1965, and 1971. The corresponding photointerpretations reveal increased herbaceous cover after abandonment of cultivated field sites and illustrate the conversion of prairie and prairie glades to forest. All sites studied exhibited decreased percentage of prairie from 1938—1971. OHIOJ. SCI. 83 (3): 109-114, 1983
Ohio's Natural Heritage
This publication was produced jointly by The Ohio Academy of Science and the Ohio Department of Natural Resources.
Thermal properties of the Florida Current as related to Ocean Thermal Energy Conversion (OTEC)
The thermal properties of the Florida Current are presented and analyzed for the available ocean thermal energy. For a cold water intake depth equal to or greater than 600 m, potential sites for Ocean Thermal Energy Conversion (OTEC) power plants appear to exist in the Straits of Florida and, to a lesser extent, off the coasts of Georgia and South Carolina. The maximum thermal differences occur on the continental shelf because of the geostrophic motion of the Gulf Stream. An estimate of the total available ocean thermal energy from the Florida Current, delivered in the form of electricity, is 3.5 × 1012 kWh yr−1. For a cold water suction depth of 600 m or more, seasonal variability in the ocean thermal resource is approx. ±35 per cent of average annual output.