Symposi 
A met 
observ 
R.Allewiji 
Department 
Netherlands 
ABSTRACT : 
environmenl 
uted, phys: 
by detailec 
distributee 
A hierarc 
(1) A bre 
(1:200.000) 
(2) Vegel 
Other patts 
TM imagery 
(3) Aftei 
and the hyc 
vey data, £ 
(4) The e 
which serve 
(5) Lands 
parameters. 
This proc 
stage of th 
In concli: 
additional 
1 INTRODUCT 
1.1 Problerr 
In Alpine e 
network is 
stream runo 
The extrapo 
can be perf 
(Figure 1) . 
pends on th 
scale at wh 
plexity of 
statistica 
lumpe 
i 
Figuri 
In (Alpine) 
controls th< 
very diffici 
catchments 1 
1981; Ebisei 
model is mo; 
hydrologies) 
with landsu; 
Lumped moc 
Model IV (C]