[GRASS-dev] creating new modules

[Kirk R. Wythers]

Maxi,

Thanks for contribution to the wiki. I am very interested in your  
work with HydroFOSS. Since you likely have confronted already, many  
of the issues that I am struggling with, I would like to ask you a  
few questiions.

First off, how do you organize your meteorological data in time and  
space? For example, over a landscape there will be numerous  
observations for variables such as precipitation, temperature and  
solar radiation. The more I think about it, the more sophisticated  
the database requirements for this task seem to be.

Right now, I am leaning toward setting up vector layers (and  
associated postgresql tables) for variables such as vegetation type  
and soil type. For example, the model will need to know soil type at  
any given location and needs to access precipitation data through  
time in oder to calculate water availability. In turn, water  
availability through time will then be needed for photosynthesis  
calculations which will have further temporally dependent input  
requirements such as solar radiation, and temperature.

Keeping these data (both input and output) organized and accessible,  
through the model run seems to be my most challenging task at this  
point.

Any thoughts are much appreciated,

Kirk

On Sep 20, 2006, at 5:55 AM, Massimiliano Cannata wrote:

> HI, I've just added some notes on the Wiki page....
> for people interested in ETP, please take a look at http:// 
> w3.ist.supsi.ch:8001/geomatica/
> hope it could be set up a working team on environmental modelling ;-)
> Maxi
>
>
>>>
>>> Kirk R. Wythers, Research Fellow
>>> Dept. of Forest Resources
>>> University of Minnesota
>>> 1530 Cleveland Ave N
>>> Saint Paul, MN 55108
>>> tel: 612.625.2261
>>> email: kwythers at umn.edu
>>>
>>>
>>>
>>>
>>
>> ------
>> Scott W. Mitchell    Scott_Mitchell at carleton.ca
>> Geomatics and Landscape Ecology Research Laboratory
>> Department of Geography and Environmental Studies
>> Carleton University, B349 Loeb Building
>> Ottawa, ON Canada K1S 5B6
>> +1-613-520-2600 ext 2695
>>
>>
>>
>>
>
>
> -- 
>
> Dr. Eng. Massimiliano Cannata
> Responsabile Area Geomatica
> Istituto Scienze della Terra
> Scuola Universitaria Professionale della Svizzera Italiana
> Via Trevano, c.p. 72
> CH-6952 Canobbio-Lugano
> Tel: +41 (0)58 666 62 14
> Fax +41 (0)58 666 62 09
>







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