[GRASSLIST:10829] Re: other methods for calculate profile and plan curvature

[Carlos "Guâno" Grohmann]

Thanks Roger. I do have acces to them. I will check it out tomorrow.

Carlos

On 3/8/06, Roger Bivand <Roger.Bivand at nhh.no> wrote:
> On Wed, 8 Mar 2006, Carlos "Guâno" Grohmann wrote:
>
> > On 3/8/06, Roger Bivand <Roger.Bivand at nhh.no> wrote:
> > Roger, could you give the full reference, so I can check out ?
>
> \item{Burrough, P. A. and McDonnell, R. A. 1998 \emph{Principles of
> geographical information systems.} (Oxford: Oxford University Press).}
>
> \item{Zevenbergen, L. W. and Thorne, C. R. 1987 Quantitative analysis of
> land surface topography. \emph{Earth Surface Processes and Landforms}, 12,
> pp. 47--56.}
>
> Roger
>
>
> >
> > thanks
> > Carlos
> >
> >
> > >
> > > You can use the Zevenbergen and Thorne (1987) recipe given by Burrough and
> > > McDonnell, 1998, p. 191 - do you have access to that? You do r.mapcalc
> > > using raster array indexing to make 8 shifted arrays, then more r.mapcalc
> > > to get slope, aspect, plan and profile curvature.
> > >
> > > Roger
> > >
> > >
> > > >
> > > > thanks
> > > >
> > > > Carlos
> > > >
> > > >
> > > > --
> > > > +-----------------------------------------------------------+
> > > >               Carlos Henrique Grohmann - Guano
> > > >   Geologist M.Sc  - Doctorate Student at IGc-USP - Brazil
> > > > Linux User #89721  - carlos dot grohmann at gmail dot com
> > > > +-----------------------------------------------------------+
> > > > _________________
> > > > "Good morning, doctors. I have taken the liberty of removing Windows
> > > > 95 from my hard drive."
> > > > --The winning entry in a "What were HAL's first words" contest judged
> > > > by 2001: A SPACE ODYSSEY creator Arthur C. Clarke
> > > >
> > >
> > > --
> > > Roger Bivand
> > > Economic Geography Section, Department of Economics, Norwegian School of
> > > Economics and Business Administration, Helleveien 30, N-5045 Bergen,
> > > Norway. voice: +47 55 95 93 55; fax +47 55 95 95 43
> > > e-mail: Roger.Bivand at nhh.no
> > >
> > >
> >
> >
> > --
> > +-----------------------------------------------------------+
> >               Carlos Henrique Grohmann - Guano
> >   Geologist M.Sc  - Doctorate Student at IGc-USP - Brazil
> > Linux User #89721  - carlos dot grohmann at gmail dot com
> > +-----------------------------------------------------------+
> > _________________
> > "Good morning, doctors. I have taken the liberty of removing Windows
> > 95 from my hard drive."
> > --The winning entry in a "What were HAL's first words" contest judged
> > by 2001: A SPACE ODYSSEY creator Arthur C. Clarke
> >
>
> --
> Roger Bivand
> Economic Geography Section, Department of Economics, Norwegian School of
> Economics and Business Administration, Helleveien 30, N-5045 Bergen,
> Norway. voice: +47 55 95 93 55; fax +47 55 95 95 43
> e-mail: Roger.Bivand at nhh.no
>
>


--
+-----------------------------------------------------------+
              Carlos Henrique Grohmann - Guano
  Geologist M.Sc  - Doctorate Student at IGc-USP - Brazil
Linux User #89721  - carlos dot grohmann at gmail dot com
+-----------------------------------------------------------+
_________________
"Good morning, doctors. I have taken the liberty of removing Windows
95 from my hard drive."
--The winning entry in a "What were HAL's first words" contest judged
by 2001: A SPACE ODYSSEY creator Arthur C. Clarke