EFFECT OF THE STRUCTURE OF VEGETATION COVER AND THE ANGLE OF OBSERVATION ON THE POSITION OF THE MAXIMUM GRADIENT OF THE REFLECTION CURVE INTHE RANGE 0.68-0.75-MU-M

Authors
ZHUMAR AY YANOVSKAYA EA
Citation
Ay. Zhumar et Ea. Yanovskaya, EFFECT OF THE STRUCTURE OF VEGETATION COVER AND THE ANGLE OF OBSERVATION ON THE POSITION OF THE MAXIMUM GRADIENT OF THE REFLECTION CURVE INTHE RANGE 0.68-0.75-MU-M, Soviet journal of remote sensing, 11(1), 1993, pp. 37-47
Citations number
10
Categorie Soggetti
Geology,Geografhy,"Photographic Tecnology","Remote Sensing
Journal title
Soviet journal of remote sensing → ACNP
ISSN journal
0275911X
Volume
11
Issue
1
Year of publication
1993
Pages
37 - 47
Database
ISI
SICI code
0275-911X(1993)11:1<37:EOTSOV>2.0.ZU;2-N
Abstract
The paper studies the effect of the structural parameters of potato cr ops on the position of the maximum gradient of the reflection curve in the range 0.68-0.75 microns using mathematical modelling and data fro m field experiments. It is shown that the angle of observation and the position of the maximum gradient of the reflection curve are related for thin crops. This fact is used to minimise the effect of structural parameters of the crop on the position of the maximum gradient of the reflection curve when determining the crop chlorophyll concentration. It is found that as the crop chlorophyll concentration increases, the sensitivity of the position of the maximum gradient of the reflection curve to the crop structure decreases.