[GRASS-user] Description of WILDFIRE

GRASS GRASS user
1

Hi

I am looking for a description of the layers needed and what they represent and how the module r.ros, r.spread are calculating the spread of fires. Especially a definition of the fuel model would be usefull.
Is there something like that available online?

Thanks

Rainer

2

These modules are performing rate of spread calculationons for each cell based on Rothermel equation for rate of spred (r.ros) and then performing 2D eliptical spread simulation.

Fuel model used in this module is 13 category model defined by Anderson and described in
http://www.firemodels.org/downloads/behaveplus/publications/Anderson_INT-122_1982.pdf

I am using the module in my work, but I am using grass 5.7 becouse when I use higher version of grass the r.spread freezes, and I still didn't get the answer why.

If you notice that the new version of grass is performing r.spread without failure please let me know :slight_smile:

best regards

Ljiljana Bodrozic
Department for modeling and inteligent systems
Faculty of Electrical Engineering, Mechanical Engineering and Naval Architecture
University of Split

Rainer M Krug wrote:

Hi

I am looking for a description of the layers needed and what they represent and how the module r.ros, r.spread are calculating the spread of fires. Especially a definition of the fuel model would be usefull.
Is there something like that available online?

Thanks

Rainer
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grass-user mailing list
grass-user@lists.osgeo.org
http://lists.osgeo.org/mailman/listinfo/grass-user

3

Hi Ljiljana

thanks for your response

Ljiljana Bodrožić wrote:

These modules are performing rate of spread calculationons for each cell based on Rothermel equation for rate of spred (r.ros) and then performing 2D eliptical spread simulation.

Fuel model used in this module is 13 category model defined by Anderson and described in
http://www.firemodels.org/downloads/behaveplus/publications/Anderson_INT-122_1982.pdf

That is exactlyu what I was looking for - thanks.

I am using the module in my work, but I am using grass 5.7 becouse when I use higher version of grass the r.spread freezes, and I still didn't get the answer why.

Oops - I am using 6.2.3 at the moment - I will definitely keep you posted.

If you notice that the new version of grass is performing r.spread without failure please let me know :slight_smile:

Sure

regards,

Rainer

best regards

Ljiljana Bodrozic
Department for modeling and inteligent systems
Faculty of Electrical Engineering, Mechanical Engineering and Naval Architecture
University of Split

Rainer M Krug wrote:

Hi

I am looking for a description of the layers needed and what they represent and how the module r.ros, r.spread are calculating the spread of fires. Especially a definition of the fuel model would be usefull.
Is there something like that available online?

Thanks

Rainer
_______________________________________________
grass-user mailing list
grass-user@lists.osgeo.org
http://lists.osgeo.org/mailman/listinfo/grass-user

_______________________________________________
grass-user mailing list
grass-user@lists.osgeo.org
http://lists.osgeo.org/mailman/listinfo/grass-user