Hi Giovanni, We thinks that it also important understand if the area is without vegetation because becomes a cultivated land, an artificial area or the trees are just cutted for wood and so some year after they will appear again. For this reason we thinks that is interesting to understand also what there is in the are without trees.
Best, Lorenzo Sorry with the previous mail I was not able to send it just as a reply > Il giorno 20 mar 2019, alle ore 00:04, Cascafico Giovanni > <cascaf...@gmail.com> ha scritto: > > Lorenzo, > if your project aims to track deforestation in a timespan, IMHO you had > better to focus on trees only. Trying to guess which landuse is going to > replace trees is hard. > > I'd start from an AOI entirely mapped with forest, wood or, in doubt, the > generic landcover=trees all of which derived from not up-to-date imagery (ie > Bing). > With this baseline you can then alter polygons with fresh imagery (ie > sentinel2). > > This implies to use OSM as an history container. It's up to you to find > methods to save intermediate "snapshots". You can backup AOI periodically or > maybe use planet diffs. > > > _______________________________________________ > Tagging mailing list > Tagging@openstreetmap.org > https://lists.openstreetmap.org/listinfo/tagging _______________________________________________ Tagging mailing list Tagging@openstreetmap.org https://lists.openstreetmap.org/listinfo/tagging
