I need to estimate the areas of a set of lagoons for differente water
height scenarios.
<br>
I am using the SRTM 30 DEM and I was hoping to apply r.fill.dir, to get
the water height.<br>
<br>
The documentation for <a href="http://r.fill.in">r.fill.in</a> stgates that "The procedure takes an
elevation layer as input and initially fills all the depressions with
one pass across the layer".
<br>
<br>
Unfortunately, there is no specification as to how tis is done. I have
searched for the paper describign the algortihm on whihc <a href="http://r.fill.in">r.fill.in</a> is
based "Software Tools to Extract Structure from Digital Elevation Data
for Geographic Information System Analysis" by S.K. Jenson and J.O.
Domingue (1988). but I have been unable to find it in the internet.
<br>
<br>
I need to ask two questions:
<br>
1) is there any other method you would reccomend in addition to
r.fill.dir to compute water height/areas ratio for depressions using a DEM?
<br>
2) Anybody has a copy of the above cited paper or a detailed
description of the algortuhm?
<br>
<br>
Cheers thanks
<br>
<br>
Armando Scalise
<br>
<br>
<a href="http://il.com">il.com</a>