International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences, Vol XXXV, Part B4. Istanbul 2004 
progressively feasible through the maturation of retrieval 
techniques (i.e. biomass), and the upcoming of new sensors (i.e. 
vegetation height with new generation laser sensors). The 
accuracy should be more and more controlled thanks to 
algorithmic progress together with the development of i 
validation facilities. The user requirements are expected to ( 
become more and more precise and will have a strong influence 
in this science field orientation. 
KEY 
ABS 
Toe 
need 
meth 
effic 
upda 
type: 
one). 
mani 
inter 
a giv 
in lo 
give 
  
  
In re 
is a 
man 
from 
such 
spati 
envi 
unce 
gene 
Sam 
subc 
parti 
non- 
spac 
feati 
obvi 
mult 
desc 
triar 
sing 
may 
of re 
amo 
QT! 
upd: 
prop 
for c 
Inde 
Mod 
presi 
Qua 
repre 
and 
790