%% $Date: 2012-07-06 17:42:54#$
%% $Revision: 148 $
\index{CAI}
\algdescgeneral{CAI}
%
{ %%%%%% Algorithm name %%%%%%
biophys\_indices (CAI is one index calculated within the overall program)
}
%
{ %%%%%% Algorithm summary %%%%%%
Calculation of Cellulose Absorption Index (CAI)
}
%
{ %%%%%% Category %%%%%%
Biophysics - dry vegetation (stress) indices
}
%
{ %%%%%% Inputs %%%%%%
Narrow band multi- or hyperspectral imagery (ENVI standard image data) including channels close to the wavelengths of 2000nm, 2100nm and 2200nm.\bigskip
}
%
{ %%%%%% Outputs %%%%%%
Single band with CAI values
}
%
{ %%%%%% Formula %%%%%%
\begin{displaymath}
CAI = 0.5 * ( R_{2000} + R_{2200} ) - R_{2100}
\end{displaymath}
}
%
{ %%%%%% Author %%%%%%
DLR-DFD
}
%
{ %%%%%% References %%%%%% 
Nagler, P.L., Daughtry, C.S.T., Goward, S.N. (2000): Plant Litter and Soil Reflectance. In: Remote Sensing of Environment, 71, P.207-215.
}
