Fire Dynamics In Leningrad Region in 2006

Posted: October 21, 2012 in GIS, Spatial data
Tags: , , , ,
Today I decided to play with TimeManager plugin for QGIS that was introduced by underdark some time ago. After some search across my spatial storage I found only one dataset that contained timestamps: FIRMS fire data that I used for creation of a methodology for burn-out probability calculation (for illegal dumping environmental risk assessment) and for assessment of human influence on fire starting.
Seems that TimeManager is not quite stable after the certain number of features in layer. At least on my machine it crushed several times (during slider manipulation) on the whole dataset of about 7000 points but worked just fine with its one-year subset of about 2700 points. But anyway overall impression is very good.
The main issue was to create a video from the generated .png files. I used console ffmpeg utils. Simple command:

:~>  ffmpeg -r 1/1 -i frame%03d.PNG -vcodec yuv420p -video_size 1126x560 output.flv

produced a 3-minute video above. One second corresponds to 1 day of the most  flammable year for the Leninngrad region in a decade. Video covers period from April to November 2006. I was too lazy to create custom undercover and just loaded OSM via OpenLayers plugin)))


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