| Abstract: | Accuracy analyses for the land use maps of the Central Atlantic Regional Ecological Test Site were performed for a 1-percent sample of the area. Researchers compared Level II land use maps produced at three scales, 1:24,000, 1:100,000, and 1:250,000 from high-altitude photography, with each other and with point data obtained in the field. They employed the same procedures to determine the accuracy of the Level I land use maps produced at 1:250,000 from high-altitude photography and color composite ERTS imagery. The accuracy of the Level II maps was 84.9 percent at 1:24,000, 77.4 percent at 1:100,000, and 73.0 percent at 1:250,000. The accuracy of the Level I 1:250,000 maps produced from high-altitude aircraft photography was 76.5 percent and for those produced from ERTS imagery was 69.5 percent The cost of Level II land use mapping at 1:24,000 was found to be high ($11.93 per km2 ). The cost of mapping at 1:100,000 ($1.75) was about 2 times as expensive as mapping at 1:250,000 ($.88), and the accuracy increased by only 4.4 percent. Level I land use maps, when mapped from highaltitude photography, were about 4 times as expensive as the maps produced from ERTS imagery, although the accuracy is 7.0 percent greater. The Level I land use category that is least accurately mapped from ERTS imagery is urban and built-up land in the non-urban areas; in the urbanized areas, built-up land is more reliably mapped. |
| Genre: | USGS Unnumbered Series |
| ProdID: | 70039560 |
| Citation Author: | Fitzpatrick, Katherine A. |
| Citation Contributing Office: | Geography Program |
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| Citation Language: | English |
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| Citation Number Of Pages: | 69 |
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| Citation Phsyical Description: | iii, 61 p. |
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| Citation Public Comments: | Sponsored jointly by the National Aeronautics and Space Administration and the U.S. Geological Survey |
| Citation Publisher: | U.S. Geological Survey |
| Citation Series: | Final Report |
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| Citation Series Number: | Volume 6 |
| Citation Search Results Text: | Cost, accuracy, and consistency comparisons of land use maps made from high-altitutde aircraft photography and ERTS imagery; 1975; USGS Unnumbered Series; Volume 6; Fitzpatrick, Katherine A. |
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| Citation Year: | 1975 |
| Type: | citation/reference |
| Text: | Cost, accuracy, and consistency comparisons of land use maps made from high-altitutde aircraft photography and ERTS imagery; 1975; USGS Unnumbered Series; Volume 6; Fitzpatrick, Katherine A. |
| URL (THUMBNAIL): | http://pubs.usgs.gov/unnumbered/70039560/report-thumb.jpg |
| URL (DOCUMENT): | http://pubs.usgs.gov/unnumbered/70039560/report.pdf |
| Date Other: | Sun, 1 Jan 2012 15:40 -0600 |
| Publisher: | U.S. Geological Survey |
