Effect of soil background on vegetation discrimination using landsat data

https://doi.org/10.1016/0034-4257(84)90066-XGet rights and content

Abstract

Digital count values were extracted for wet and dry areas within three spectrally different soil types from a 21 March 1977 Landsat-2 scene over the southern Central Valley of California. These values were converted to brightness and greenness using the global Kauth-Thomas coefficients. Greenness was scaled using the Kauth-Thomas soil line as the 0% level and a full cover wheat canopy greenness point as 100%. Individual site specific soil lines were then compared. The total difference in greenness among the three test soils ranged up to 14.5% using the global Kauth-Thomas coefficients. Site-specific soil lines were then calculated using soil specific coefficients. The difference among the three test soils was reduced from 14.5% to 3.8%. These results indicate that soil background effects can be significant in Landsat data but can be reduced using site specific soil information.

References (20)

There are more references available in the full text version of this article.

Cited by (0)

Now with EG&G Energy Measurements, Inc., Las Vegas, NV 89125.

View full text