[GRASS-user] new paper using GRASS

[Carlos Grohmann]

Hello all

just stoping by to share a paper I just published in Computers &
Geosciences using GRASS.

http://authors.elsevier.com/a/1QWsWMMTPKJw~

the link should work for access without subscription to ScienceDirect for
about 50 days.

Here's the abstract:



Effects of spatial resolution on slope and aspect derivation for
regional-scale analysis

This paper investigates differences between morphometric parameters (slope
and aspect) derived from a resampled DEM and resampled morphometric data
derived from a medium resolution DEM, with examples for three study areas
in South America selected to represent flatlands, hilly terrain, and
mountain ranges. Using a low resolution DEM for regional scale morphometric
analysis is not an optimal choice, since attenuation of elevation will
strongly affect the distribution of calculated parameters. Unless bounded
by computational constraints, one should choose to derive basic
morphometric parameters from higher resolution data, and resample it to a
coarser resolution as needed.




cheers

Carlos



-- 
Prof. Carlos Henrique Grohmann
Institute of Energy and Environment - Univ. of São Paulo, Brazil
- Digital Terrain Analysis | GIS | Remote Sensing -

http://carlosgrohmann.com
http://orcid.org/0000-0001-5073-5572
________________
Can't stop the signal.
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