Ohio 1994 Statewide Land Cover
The land cover inventory for the State of Ohio was produced by the digital image processing of Landsat Thematic Mapper Data. The Thematic Mapper is a multi-spectral scanner that collects electromagnetic radiation reflected from the earth's surface in the visible, near infrared and mid infrared wavelength bands.
The resolution of the Thematic Mapper data is a 30 meter by 30 meter cell. The computer analysis of the data isolates unique spectral classes that relate to land cover characteristics.
The land cover inventory was produced from Thematic Mapper data acquired in September and October 1994. The data was classified into the general land cover categories of:
The Ohio Wetland Inventory was produced from the image processing of Thematic Mapper data acquired in the spring of 1985 and/or 1987. The inventory shows areas of shallow marsh (emergent vegetation in water 3 feet of less), shrub scrub wetland (emergent woody vegetation in water 3 feet or less), wet meadow (wet grass areas in water less than 6 inches, on hydric soils) and farmed wetland (wet meadow in agriculture areas, on hydric soils).
The land cover information reflects the conditions of the satellite data during the specific year and season the data was acquired. The wetland sites shown should be field reviewed for jurisdictional purposes.
The Thematic Mapper data was processed using ERDAS image processing software.
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