I would like to use OpenStreetMap vector data for land cover analysis in my city. Here is my goal:
- I set up a PostGIS database with the city area extent (around 20x20 km) on my server.
- I will download the polygon data from OpenStreetMap. Maybe I could use a command-line tool like osm2pgsql
- The local copy will be "read-only".
- On a daily basis or more often, I want to "synchronize" my local PostGIS copy of the OpenStreetMap data of my city with the latest online edits to ensure that my data is up-to-date.
Is this possible without re-downloading all of the OpenStreetMap data from my region every time? (I would like to download the 'latest changes' only and somehow merge them with my local PostGIS OpenStreetMap copy)