[GRASS-user] conversion to fire simulation data set in the Grass GIS

[Kalindu Perera]

Hi Thomas,
Yes, the starting point is latitude and longitude coordinates.
It's actually not 2 columns. It has a separate column for each one slope.
elevation etc... The data for each wildfire is presented in rows.
I'll attach a dataset which has the data about the wildfire spread and
starting point and a  weather dataset another file. we are currently in a
stage of combining those 2 and creating one file which shows the wildfire
starting point spread and weather data both on one file.
The inputs to the wildfire model in grass GIS use data as separate files.
we need to convert our sheet to that type of set of separate data files.
You can download the Grass GIS fire simulation dataset clicking here
<https://grass.osgeo.org/download/sample-data/> and go to the end of that
page.
It has the data as a set of files, when extracted go to
demolocation->demomapset->cats

Thank you ...!!!!!!!!


On Sat, 4 Aug 2018 at 19:47, Thomas Adams <tea3rd at gmail.com> wrote:

> Kalindu,
>
> First, I have never done any wildfire modeling and I am not familiar with
> the process in GRASS. So, I'm not sure what the requirements are in GRASS
> to do this. However, I do not understand how 2 columns of data can contain
> "starting point of the fire, slope, wind velocity, wind direction,
> elevation, fuel models and fuel moisture" unless the data are in separate
> rows; but that does not make sense either to me. Is the "starting point of
> the fire" in lat/long coordinates or some other geographic coordinates?
>
> I really think it would be helpful to see an example dataset with an
> explanation. I or others can help you with answering questions about
> importing your datasets, but not without this information.
>
> Best,
> Tom
>
>
> On Sat, Aug 4, 2018 at 10:01 AM, Kalindu Perera <kkc199408 at gmail.com>
> wrote:
>
>> Hi Thomas,
>>
>> Thanks a lot for your reply. I'll explain more.
>> We have a dataset with data about a wildfire, starting point of the fire,
>> slope, wind velocity, wind direction, elevation, fuel models and fuel
>> moisture.
>> That data is in an excel sheet separated into columns.
>> we need to convert that data to the format which is like in the Grass GIS
>> fire simulation data set. So that we can calculate the spread of our
>> wildfire using r.ros
>> Grass GIS fire simulation data set has data about 1 wildfire and the data
>> is presented separately as files. As an example slope is a separate file.
>> the elevation is another file
>> What we need is how to convert our wildfire data which is in the excel
>> sheet to those type of files?
>> Is there any script or something to convert?
>>
>> Thank you..!!!!!!
>>
>>
>> On Sat, 4 Aug 2018 at 18:36, Thomas Adams <tea3rd at gmail.com> wrote:
>>
>>> Kalindu,
>>>
>>> I think you need to provide more information. It sounds like you have
>>> point data, which means your data should be imported using v.in.ogr or
>>> v.in.ascii, if you were to convert you excel file to an ascii text file.
>>>
>>> Regards,
>>> Tom
>>>
>>> On Sat, Aug 4, 2018 at 3:46 AM, Kalindu Perera <kkc199408 at gmail.com>
>>> wrote:
>>>
>>>> Hi everyone,
>>>> We have encountered a problem when we trying to convert a wildfire data
>>>> set to the format that can be used in the grass GIS. We have the data in an
>>>> excel sheet as records. Grass GIS fire simulation dataset has a set of
>>>> files as the inputs. The format of the data in the files is unclear. Is
>>>> there any conversion method of normal fire data to the format that can be
>>>> used in the Grass GIS?...We have the same input data, we need to convert
>>>> them like the fire simulation data set provided in the Grass GIS sample
>>>> data page.
>>>>
>>>> Thank you...!!!!!!!
>>>> Awaiting a helpful response
>>>>
>>>> _______________________________________________
>>>> grass-user mailing list
>>>> grass-user at lists.osgeo.org
>>>> https://lists.osgeo.org/mailman/listinfo/grass-user
>>>>
>>>
>>>
>>>
>>> --
>>>
>>>
>>>
>
>
>
>
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