#Modul zur NDVI Berecnung
#! /bin/csh -fx

emathp \
expr_vars='avhrr_ch1 avhrr_ch2' \
num_exprs='4' \
y1_expr='(x2-x1)' \
y2_expr='(x2+x1)' \
y3_expr='y1/y2' \
y4_expr='land ? y3 : badval' \
use_degrees='yes' \
poly_size='100' \
save_exprs='3,4' \
var_names='ndvi ndvi_land' \
var_units='[albedo*100% albedo*100%]' \
var_types='fl fl' \
$1 $2