Thanks Gunngunn, I ended up matching with the ESRI ones and filling them but still need to do a quality check. Some are missing tehsils, some are wildlife sanctuaries, some are just random areas. FYI: ESRI look the way they look because they seem to be a hybrid between official SOI and digitised Census Handbook maps, so can't be used per se. I believe the fill may be correct though, missing parts seem to be falling on the right outline but I have no information on the timestamp for SOI boundaries used by ESRI (assuming 2024). In the absence of proper official data, I will take this.
Pe marți, 1 octombrie 2024, la 02:27:04 UTC+1, Gunngunn a scris: > You may try creating unique identifier either use village code or > concatenate state name, dist name,block name, panchayat name and village > name... Either of them may work > > On Friday 27 September 2024, Cristina Vrinceanu <[email protected]> > wrote: > >> Hi all, >> >> I am doing an analysis where I map various socio-economic datasets to >> Indian districts. However, since these are linked to the year, I need to >> first curate the geometries for each to link to the name and area. >> >> After doing a quality analysis, I decided the OSM/Overture districts seem >> to be falling best on the current boundaries, but I have some missing >> geometry gaps (topology errors) in RJ, AS, MP and GJ. I cannot seem to find >> a comparison dataset for the prior year so I could correctly fill in these >> gaps and assign them to the right district. >> >> In RJ, for example, the gap covers and area where the Uidapur district >> was split last year in August and now some parts of the gap are still in >> Uidapur, some belong to the newly formed Salumbar etc. The official RJ data >> is not up to date (State GIS Portal >> <https://stategisportal.nic.in/stategisportal/Home/State/8>), neither is >> Google Maps. For 2023, the only source I found is the ESRI Living Atlas >> districts which are apparently from Survey of India have very fragmented >> (many multipart separate geometries) that are not in the OSM dataset, in >> some places they seem to have been simplified or digitised from a lower >> scale and in some places they are completely shifted from the OSM boundary. >> >> Does anyone know any reliable source to compare with for 2023/2024? Or >> has any suggestion on how to assign missing bits? >> At the moment I am manually tracing the district tehsil movements and >> morphing (based on info online) and comparing with villages outline (all >> gap areas are just villages), although the latter is very annoying since >> villages coincide in name within the same state. >> >> Any suggestions are appreciated. Thanks! >> >> -- >> Datameet is a community of Data Science enthusiasts in India. Know more >> about us by visiting http://datameet.org >> --- >> You received this message because you are subscribed to the Google Groups >> "datameet" group. >> To unsubscribe from this group and stop receiving emails from it, send an >> email to [email protected]. >> To view this discussion on the web visit >> https://groups.google.com/d/msgid/datameet/30a45ff0-4655-422c-8ce6-bad672a5e978n%40googlegroups.com >> >> <https://groups.google.com/d/msgid/datameet/30a45ff0-4655-422c-8ce6-bad672a5e978n%40googlegroups.com?utm_medium=email&utm_source=footer> >> . >> > -- Datameet is a community of Data Science enthusiasts in India. Know more about us by visiting http://datameet.org --- You received this message because you are subscribed to the Google Groups "datameet" group. To unsubscribe from this group and stop receiving emails from it, send an email to [email protected]. To view this discussion on the web visit https://groups.google.com/d/msgid/datameet/b66d0db5-90b8-43b8-9803-bf42d1d5c191n%40googlegroups.com.
