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Title: A technique for extrapolating and validating forest cover across large regions. Calibrating AVHRR data with TM data

Author: Iverson, L.R.; Cook, E.A.; Graham, R.L.;

Date: 1989

Source: International Journal of Remote Sensing. 10(11): 1805-1812.

Publication Series: Scientific Journal (JRNL)

Description: An approach to extending high-resolution forest cover information across large regions is presented and validated. Landsat Thematic Mapper (TM) data were classified into forest and nonforest for a portion of Jackson County, Illinois. The classified TM image was then used to determine the relationship between forest cover and the spectral signature of Advanced Very High Resolution Radiometer (AVHRR) pixels covering the same location. Regression analysis was used to develop an empirical relationship between AVHRR spectral signatures and forest cover. The regression equation developed from data from the single county calibration area in southern Illinois was then applied to the entire AVHRR scene, which covered all or parts of ten states, to produce a regional map of forest cover. This map was used to derive estimates of forest cover, within a geographical information system (GIS), for each of the 428 counties located within the boundaries of the original AVHRR scene.

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Iverson, L.R.; Cook, E.A.; Graham, R.L. 1989.A technique for extrapolating and validating forest cover across large regions. Calibrating AVHRR data with TM data. International Journal of Remote Sensing. 10(11): 1805-1812.

 


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