Densitometry of ERTS-1 imagery to access vegetation changeDensity measurements of ERTS-1 multispectral scanner (MSS) imagery can be used to evaluate phenological changes in vegetation. It was found that the density ratios for MSS bands 5 and 7 best characterize vegetation change. The ratio increases with vegetative progression and decreases with vegetative recession. The use of a densitometer aperture as small as 0.4 mm does not adversely affect the accuracy of readings on forest sites.
Document ID
19750039693
Acquisition Source
Legacy CDMS
Document Type
Conference Proceedings
Authors
Ashley, M. D.
Rea, J. (Maine, University Orono, Me., United States)
Date Acquired
August 8, 2013
Publication Date
January 1, 1974
Subject Category
Earth Resources And Remote Sensing
Meeting Information
Meeting: Remote sensing of earth resources. Volume 3 - Third Conference on Earth Resources Observation and Information Analysis System