I have been looking for a long time for a good explanation of a spatio-temporal filter or join in QGIS. In my specific case I have two shapefiles (polygons) - one describes the
ignitions and the other represents
fire perimeter. Both layers also include an attribute called
year in which the two occurred.
My goal is to filter out the
fire polygons that do not match the
ignition both spatially but also temporally.
I have tried this by converting my
ignitions to points, but that did not solve the issue.
How can I easily perform a spatial and temporal filter/join of the two polygon layers in QGIS?
My plan is to look at how the timing of ignitions may change over a time period, therefore, I want to look at how the timing of ignitions is for each year. I can also look at the average size of the fires that the ignitions have started for each year.