Interpretation; Apollo 9 photography of parts of southern Arizona and southern New Mexico
Open-File Report
73-215
By: J. Robert Owen and Lynn M. Shown
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Abstract
Examination of small-scale (approximately 1:650,000) multispectral photographs obtained on the Apollo 9 mission in March 1969 revealed that in semiarid, regions features due to differences in soils or quantity of vegetation could most easily be discriminated on the color infrared photographs. Where there is sufficient ground truth, it is possible to delineate regional wildland plant communities on the basis of tone, however, the precision of the method may be improved by using photographs obtained two or more times during the year. Sites where vegetation-improvement practices have been completed are not always discernible. For example, where waterspreaders have been constructed, there was sufficient change in the density of vegetation to be readily detected on the photographs; however, pinyon-juniper to grass, conversions or contour furrowing did not always produce a sufficient change in the vegetation to be detected on the photographs.
Suggested Citation
Owen, J.R., Shown, L.M., 1973, Interpretation; Apollo 9 photography of parts of southern Arizona and southern New Mexico: U.S. Geological Survey Open-File Report 73-215, 16 p. ill. ; 28 cm., https://doi.org/10.3133/ofr73215.
ISSN: 2331-1258 (online)
| Publication type | Report |
|---|---|
| Publication Subtype | USGS Numbered Series |
| Title | Interpretation; Apollo 9 photography of parts of southern Arizona and southern New Mexico |
| Series title | Open-File Report |
| Series number | 73-215 |
| DOI | 10.3133/ofr73215 |
| Year Published | 1973 |
| Language | ENGLISH |
| Description | 16 p. ill. ; 28 cm. |