[GRASS-user] active fire mapping with GRASS GIS?

[Vishal Mehta]

Thanks Veronica!

I also found i could use FIRMS for what i was looking for: here's a
snapshot-- the derived product overlaid over a True Color Composite..
[image: image.png]
https://firms2.modaps.eosdis.nasa.gov/map/#d:2020-08-20..2020-08-21;l:noaa20-viirs,terra_crc;@-122.2,38.8,9z


On Fri, Aug 21, 2020 at 5:51 AM Veronica Andreo <veroandreo at gmail.com>
wrote:

> Hi Vishal,
>
> What about
> https://worldview.earthdata.nasa.gov/?t=2020-08-17-T12%3A21%3A52Z ?
> With `Add layers` you can add the active fire over it
>
> best,
> Vero
>
> El vie., 21 ago. 2020 a las 0:09, Vishal Mehta (<vishalm1975 at gmail.com>)
> escribió:
>
>> Thanks Markus,
>>
>> I also came across this and another resource, so part of my needs are met.
>>
>> however, i notice that these data are derived products, where a pixel is
>> designated as having a fire based on the temperature anomaly. thi is the
>> main reason if anyone is following on the firemaps available on google maps
>> that we are getting huge polygons - basically the boundaries created around
>> any pixel with a large-ish anomaly.
>>
>> is there a quick automation workflow possible where False Color
>> Composites of near-realtime imagery using the thermal band can be created,
>> which can be updated once a day at the click of a button; and then overlay
>> the FIRES derived datasets on top? This would allow one to visualize the
>> earth surface while also overlaying the derived product.
>>
>> i'm imagining a workflow which automates the finding of imagery as well,
>> because that part of the workflow (going to the DAAC and finding the
>> sensors , path, row etc etc) seem as tedious as it ever was..
>>
>> Best,
>> Vishal
>>
>> On Thu, Aug 20, 2020 at 1:23 PM Markus Neteler <neteler at osgeo.org> wrote:
>>
>>> Hi Vishal,
>>>
>>> On Wed, Aug 19, 2020 at 11:42 PM Vishal Mehta <vishalm1975 at gmail.com>
>>> wrote:
>>> >
>>> > Hi all,
>>> >
>>> > as you may have heard, there are a lot of active fires in California
>>> right now.
>>> >
>>> > the nearest one is about 30-40 miles away from me. i'm wondering is
>>> there some guidance on using GRASS GIS for active fire mapping using near
>>> real time imagery? i've searched online but haven't found something yet.
>>> (i'm not looking for fire modeling)
>>>
>>> Yes, you can get NRT data from here:
>>> https://firms.modaps.eosdis.nasa.gov/active_fire/
>>> - Shapefiles
>>> - Google Earth KML
>>> - Text Files (CSV)
>>>
>>> This you may import (v.import) and visualize/analyse.
>>>
>>> Best wishes,
>>> Markus
>>>
>>>
>>> --
>>> Markus Neteler, PhD
>>> https://www.mundialis.de - free data with free software
>>> https://grass.osgeo.org
>>> https://courses.neteler.org/blog
>>>
>>
>>
>> --
>> Vishal K. Mehta, PhD
>> Sr. Scientist
>> Stockholm Environment Institute - US
>> 133 D St Suite F
>> Davis CA 95616
>> www.sei-us.org
>> _______________________________________________
>> grass-user mailing list
>> grass-user at lists.osgeo.org
>> https://lists.osgeo.org/mailman/listinfo/grass-user
>
>

-- 
Vishal K. Mehta, PhD
Sr. Scientist
Stockholm Environment Institute - US
133 D St Suite F
Davis CA 95616
www.sei-us.org
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