Hi,
Has any one used the r.topmodel module? If so, I have the following questions:
Cheers,
Jaime
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Jaime,
I believe I can help you, although:
(1) I have never run TOPMODEL in GRASS (just the Fortran standalone version)
(2) the link to Lancaster Univ. is old, in fact I'm not sure Kieth Bevan & Lancaster Univ. even make the original source available now, from what I can see at: http://www.es.lancs.ac.uk/hfdg/freeware/hfdg_freeware_top.htm
My guesses are these, since they conform to the GRASS r.topmodel manual page and the original files for the standalone version of TOPMODEL:
parameters=string
(i) TOPMODEL Parameters file, where the standalone file looked like this:
SUBCATCHMENT 1
0.032 5.0 50. 3600.0 3600.0 0.05 0.0000328 0.002 0 1.0 0.02 0.1
I can not remember what's what; I'll have to dig this up, plus I'll have to look at the r.topmodel source code more — I believe the data are read in this order from what I can see in the source…
input=string
(i) Rainfall and potential evapotranspiration data file {probably a space delimited file with 2 columns}
output=string
(o) Output file {looks like flow is cu meters/timestep}
Qobs=string
(i) OPTIONAL Observed flow file {single column file}
My recollection is that the inputs are in terms of meters/time-step (flow would be cu. meters/delta-t) — but I MUST CONFIRM THIS!
The original input file in the standalone version combined the GRASS input & Qobs files and looked like this:
950 1.0 <====== Number of timesteps & Number of hours per time step (I believe)
.0000000 .0000619 .0000328
.0000000 .0000647 .0000325
.0010000 .0000619 .0000330
.0010000 .0000560 .0000333
.0010000 .0000457 .0000348
.0005000 .0000323 .0000356
.0005000 .0000156 .0000356
.0000000 .0000000 .0000356
.0005000 .0000000 .0000351
Notice that the values are very small, which makes me believe that I think my guess about the units of the input are correct; this could be different in the GRASS r.topmodel code, of course. The columns are, respectively, precipitation, PE, and ObsQ.
At least this can get you going. I'll try to get more on this in the next few days. With a little help of some of the more experienced GRASS module contributors, I don't mind taking this on.
Regards,
Tom
Jaime Carrera wrote:
Hi,
Has any one used the r.topmodel module? If so, I have the following questions:
1) What are the instructions that are required in the "topmodel parameters file"?
2) How should the topographic index statistics file be written?Cheers,
Jaime
__________________________________________________
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--
Thomas E Adams
National Weather Service
Ohio River Forecast Center
1901 South State Route 134
Wilmington, OH 45177
EMAIL: thomas.adams@noaa.gov
VOICE: 937-383-0528
FAX: 937-383-0033
http://geni.ath.cx/r.topmodel.html is somewhat helpful though it's still under
construction.
Huidae Cho
On Thu, Mar 30, 2006 at 07:05:47PM -0600, Jaime Carrera wrote:
Hi,
Has any one used the r.topmodel module? If so, I have the following questions:
1) What are the instructions that are required in the "topmodel parameters file"?
2) How should the topographic index statistics file be written?
Cheers,
Jaime__________________________________________________
Correo Yahoo!
Espacio para todos tus mensajes, antivirus y antispam ¡gratis!
Regístrate ya - http://correo.espanol.yahoo.com/
Thanks Huidae and Thomas for your reply
Huidae’s page is really helpfull to understand the usage of r.topmodel; however it is not clear to me which topmodel version is the one implemented in r.topmodel. Is it the original one by K. Beven? or is this the same version as the one in Liaw’s PhD thesis?
Cheers
Jaime
Huidae Cho grass4u@gmail.com escribió:
http://geni.ath.cx/r.topmodel.html is somewhat helpful though it’s still under
construction.Huidae Cho
On Thu, Mar 30, 2006 at 07:05:47PM -0600, Jaime Carrera wrote:
Hi,
Has any one used the r.topmodel module? If so, I have the following questions:
- What are the instructions that are required in the “topmodel parameters file”?
- How should the topographic index statistics file be written?
Cheers,
Jaime
Correo Yahoo!
Espacio para todos tus mensajes, antivirus y antispam ¡gratis!
Regístrate ya - http://correo.espanol.yahoo.com/
Correo Yahoo!
Espacio para todos tus mensajes, antivirus y antispam ¡gratis!
Regístrate ya - http://correo.espanol.yahoo.com/
r.topmodel was implemented based on TMOD9502.FOR by K. Beven, but due to the
lack of consistency in variable names I followed Liaw's naming convention.
Huidae Cho
On Fri, Mar 31, 2006 at 12:39:27PM -0600, Jaime Carrera wrote:
Thanks Huidae and Thomas for your reply
Huidae's page is really helpfull to understand the usage of r.topmodel; however it is not clear to me which topmodel version is the one implemented in r.topmodel. Is it the original one by K. Beven? or is this the same version as the one in Liaw's PhD thesis?
Cheers
Jaime
Huidae Cho <grass4u@gmail.com> escribió:http://geni.ath.cx/r.topmodel.html is somewhat helpful though it's still under
construction.
Huidae Cho
On Thu, Mar 30, 2006 at 07:05:47PM -0600, Jaime Carrera wrote:
>
> Hi,
> Has any one used the r.topmodel module? If so, I have the following questions:
> 1) What are the instructions that are required in the "topmodel parameters file"?
> 2) How should the topographic index statistics file be written?
> Cheers,
> Jaime
>
> __________________________________________________
> Correo Yahoo!
> Espacio para todos tus mensajes, antivirus y antispam ¡gratis!
> Regístrate ya - http://correo.espanol.yahoo.com/__________________________________________________
Correo Yahoo!
Espacio para todos tus mensajes, antivirus y antispam ¡gratis!
Regístrate ya - http://correo.espanol.yahoo.com/