Hello Group, Was very keen to continue this discussion. To continue from my last point (in my last msg), the key reason I am seeking base-map / boundary data is that I would like to build an infographic portal for census and other primary data sets. I gave a shot but did not reach too far.. and keen to collaborate with like minded ppl to take my project further.
Best, Dipal *| Dipal Thakker* On 19 April 2015 at 15:50, Dipal Thakker <[email protected]> wrote: > @Pradeep thanks for flagging > > @All - Just bought to my attention that my msg from Thursday last week > which was intended for the group was only sent to one member. > > ---- > > @Mahroof - thats very true. But the sad part is that BISAG has formal / > informal tie-ups with commercial entities (so I have heard) > > @Sharad - many thanks, will have a look at the information right away. > Will this match to Census 2011 data? > > @Pradeep - many thanks for your offer to help with RTI - ideally i need > data for India (which I am sure most of us here are after). But for > starters, I am focusing on western region so data for Guj, Raj, Mah, and MP > will be great. > > All - just a thought – It will be great if DM members could collaborate to > build an open source data platform, as I am sure there is a lot of data > around. > > --- > > Which Brings me to my last point.. I am currently trying to build a > retail analytics platform and as part of my exercise I am also building a > census infographic tool for which I need two key components.. > - primary census data which can be extrapolated (thisI have and is now > available for free) and > - relevant and relateable boundary / admin line data (not available). > > I have done some very basic work using census raw data layered on OSM > using leaflet and driven by PHP / Posgresql > > Keen to talk with like minded people here.. so please feel free to reach > out. > > KR, > Dipal > > *| Dipal Thakker* > > > > On 19 April 2015 at 09:12, Pradeep Bhatt <[email protected]> wrote: > >> Just noticed that you had sent this mail to me and not to the group. You >> might want to send it to the group. >> >> Regards, >> Pradeep >> >> On Tue, Apr 14, 2015 at 1:38 PM, Dipal Thakker <[email protected]> >> wrote: >> >>> @Mahroof - thats very true. But the sad part is that BISAG has formal / >>> informal tie-ups with commercial entities (so I have heard) >>> >>> @Sharad - many thanks, will have a look at the information right away. >>> Will this match to Census 2011 data? >>> >>> @Pradeep - many thanks for your offer to help with RTI - ideally i need >>> data for India (which I am sure most of us here are after). But for >>> starters, I am focusing on western region so data for Guj, Raj, Mah, and MP >>> will be great. >>> >>> All - just a thought – It will be great if DM members could collaborate >>> to build an open source data platform, as I am sure there is a lot of data >>> around. >>> >>> KR, >>> Dipal >>> >>> *| Dipal Thakker* >>> >>> >>> On 14 April 2015 at 12:00, Pradeep Bhatt <[email protected]> >>> wrote: >>> >>>> Hi Dipal, >>>> >>>> I can use RTI to get data from BISAG. >>>> >>>> Can you let me know you need data exactly for which region? >>>> >>>> Regards, >>>> Pradeep >>>> >>>> >>>> On Tue, Apr 14, 2015 at 11:10 AM, Dipal Thakker < >>>> [email protected]> wrote: >>>> >>>>> Shashank, Shashank, and DM comrades >>>>> >>>>> Great if someone can point me to the most complete / recent version of >>>>> IND_adm3 data. I am working on a census tool and I have done some work for >>>>> few states, but stuck without detailed boundary data-sets. >>>>> >>>>> I visited BISAG, a nodal agency in Gujarat which I am told has the >>>>> most detailed GIS data sets for Gujarat and most parts of India, but was >>>>> booted out on my request to access, lease, license, or rent data set.. its >>>>> such a shame that on one hand PM/govt is talking about open data and on >>>>> other there is a thick bureaucratic red tape. >>>>> >>>>> Cheers >>>>> >>>>> *| Dipal Thakker* >>>>> >>>>> On 14 April 2015 at 10:41, "Sharad Lele [शरच्चंद्र लेले]" < >>>>> [email protected]> wrote: >>>>> >>>>>> Dear Shashank: >>>>>> >>>>>> I think the bottom line of the thread below was the the IND_adm3 >>>>>> layer is a reasonably good layer for tehsil boundaries. >>>>>> >>>>>> Regarding digitizing village boundaries: seems like we are all >>>>>> condemned to reinvent the wheel because GoI/Planning Commission/ISRO are >>>>>> not willing to share what they have already done (and in many cases 10 >>>>>> times over). >>>>>> >>>>>> For which state are you trying to create a village boundary layer? >>>>>> >>>>>> Sharad >>>>>> >>>>>> >>>>>> On 14-Apr-15 10:33 AM, Shashank wrote: >>>>>> >>>>>> Bumping this up, because I don't think this issue has been resolved >>>>>> yet. I now have 4 different versions of Indian administrative boundaries, >>>>>> and my current nightmare is getting protected area boundaries to line up >>>>>> with them accurately. >>>>>> >>>>>> What's the best *open* version of Indian administrative boundaries, >>>>>> down to the Tehsil/Block level, and is there a place from where it is >>>>>> easily available? >>>>>> >>>>>> (I'm not even going to ask for village-level data, because among >>>>>> other things, what we're doing now is digitising revenue village maps >>>>>> because the MRD itself doesn't have digitised village level data...yet.) >>>>>> >>>>>> >>>>>> On Tuesday, January 27, 2015 at 2:02:37 PM UTC+5:30, D Thakker wrote: >>>>>>> >>>>>>> Eric, in my research / experience i have found that Sub-district, >>>>>>> Mandal, Taluka, Tehsil means same and are division of District when it >>>>>>> comes to Census. >>>>>>> But for Revenue dept boundaries are drawn and managed by district >>>>>>> administrative bodies who report to state administration only. >>>>>>> >>>>>>> So for census - District and Sub-district are well defined >>>>>>> boundaries, and I understand from 2011 Census India has bought a started >>>>>>> numbering system which should make future data reconciliation easier >>>>>>> >>>>>>> But for land revenue depaetment - it really depends on the local >>>>>>> administrative reach and function, and is managed and controlled by >>>>>>> state >>>>>>> admin bodies. >>>>>>> >>>>>>> For eg. Surat has some discrepancy when it comes to Revenue and >>>>>>> Census boundaries. This was something I came across and even local admin >>>>>>> bodies in Surat were not aware >>>>>>> >>>>>>> >>>>>>> On Thursday, August 7, 2014 at 8:15:45 PM UTC+5:30, Eric Dodge >>>>>>> wrote: >>>>>>>> >>>>>>>> This is very interesting Sharad. >>>>>>>> >>>>>>>> I've been looking for maps of what I've been calling >>>>>>>> administrative blocks, that is, the units overseen by block development >>>>>>>> officers. MGNREGA data is aggregated at this level and I've been >>>>>>>> hoping to >>>>>>>> use the data to do some mapping exercises. >>>>>>>> >>>>>>>> The census sub-districts are called differently across states >>>>>>>> (tahsil, taluk, mandal, etc). You can see the list here: >>>>>>>> >>>>>>>> >>>>>>>> http://censusindia.gov.in/Tables_Published/Admin_Units/Admin_links/subdistrict_nomeclature.html >>>>>>>> >>>>>>>> I know that in all the states where census sub-districts are >>>>>>>> called taluk, mandal, or CD block (with the exception of TN), the >>>>>>>> census >>>>>>>> sub-district is identical to the administrative block. >>>>>>>> >>>>>>>> I've already completed a mapping exercise for Bihar using the >>>>>>>> census sub-district map and the data matched up pretty well. If the >>>>>>>> IND_adm3 data is indeed the administrative blocks then I could do a >>>>>>>> similar >>>>>>>> exercise with Madhya Pradesh. I'll take a look to see if the data >>>>>>>> lines up >>>>>>>> correctly. >>>>>>>> >>>>>>>> Has anybody dug into this issue any deeper? I've heard that >>>>>>>> tehsil comes from the revenue side whereas taluk, mandal, etc comes >>>>>>>> from >>>>>>>> the administrative side but that doesn't explain why the census uses >>>>>>>> different sub-district units across states. >>>>>>>> >>>>>>>> Best, >>>>>>>> Eric >>>>>>>> >>>>>>>> >>>>>>>> On Thu, Aug 7, 2014 at 7:39 AM, Sharad Lele <[email protected]> >>>>>>>> wrote: >>>>>>>> >>>>>>>>> If I am right, then Justin may want to rename his layer as >>>>>>>>> CDBlocks_2001... >>>>>>>>> >>>>>>>>> Sharad >>>>>>>>> >>>>>>>>> >>>>>>>>> On Thursday, August 7, 2014 4:28:17 PM UTC+5:30, Sharad Lele >>>>>>>>> wrote: >>>>>>>>>> >>>>>>>>>> I think I have the explanation for why I am seeing a good match >>>>>>>>>> and you are not: >>>>>>>>>> >>>>>>>>>> The problem lies in defining what is the 'sub-district' unit (in >>>>>>>>>> IND_adm3). Administratively speaking, it is tehsil, below which lies >>>>>>>>>> CD >>>>>>>>>> block. Unfortunately, census gives information by CD block. So there >>>>>>>>>> are >>>>>>>>>> more 'sub-district' units in Census than tehsils in the country. >>>>>>>>>> GDAM seems >>>>>>>>>> to have followed the tehsil concept. >>>>>>>>>> >>>>>>>>>> To check: Karnataka is one state in which tehsil and CD block are >>>>>>>>>> one and the same. That is why the sub-district layer IND_adm3 matches >>>>>>>>>> perfectly for Karnataka, but not for other states. There might be >>>>>>>>>> some >>>>>>>>>> other states where this holds good, I don't know. >>>>>>>>>> >>>>>>>>>> Anyway, so if one really wants CD block level boundaries, we have >>>>>>>>>> to look at Justin, I guess. >>>>>>>>>> >>>>>>>>>> But the GDAM boundaries are not 'wrong'. >>>>>>>>>> >>>>>>>>>> Sharad >>>>>>>>>> >>>>>>>>>> On 07-Aug-14 9:48 AM, Devdatta Tengshe wrote: >>>>>>>>>> >>>>>>>>>> In Continuation of my previous email, here is a CSV file which >>>>>>>>>> shows just how bad the GDAM dataset is. >>>>>>>>>> >>>>>>>>>> Regards, >>>>>>>>>> Devdatta >>>>>>>>>> >>>>>>>>>> >>>>>>>>>> On Thu, Aug 7, 2014 at 9:06 AM, Devdatta Tengshe < >>>>>>>>>> [email protected]> wrote: >>>>>>>>>> >>>>>>>>>>> Hi Sharad, >>>>>>>>>>> >>>>>>>>>>> I just download the GDAM data again, to confirm what you have >>>>>>>>>>> said. >>>>>>>>>>> >>>>>>>>>>> I'm going to have to disagree with you about the quality of the >>>>>>>>>>> IND_adm3 data. >>>>>>>>>>> >>>>>>>>>>> >>>>>>>>>>> Acoording to the 2001 Census, there are 5454 Sub Districts in >>>>>>>>>>> India <http://www.socialjustice.nic.in/pdf/tab11.pdf>. The GDAM >>>>>>>>>>> dataset has just 2299 features. >>>>>>>>>>> >>>>>>>>>>> So clearly these taluk features do not correspond to the 2001 >>>>>>>>>>> Census. I cross checked for some areas I have ground knowledge of, >>>>>>>>>>> and I >>>>>>>>>>> can say that this dataset is not from any specific era. Some >>>>>>>>>>> tehsils in the >>>>>>>>>>> file were created post 2001, while others created in the 90's were >>>>>>>>>>> not >>>>>>>>>>> present. >>>>>>>>>>> >>>>>>>>>>> In my opinion the GDAM data is pretty much unusable. >>>>>>>>>>> >>>>>>>>>>> >>>>>>>>>>> Regards, >>>>>>>>>>> Devdatta >>>>>>>>>>> >>>>>>>>>>> >>>>>>>>>>> On Wed, Aug 6, 2014 at 11:36 PM, Sharad Lele <[email protected] >>>>>>>>>>> > wrote: >>>>>>>>>>> >>>>>>>>>>>> I have downloaded and checked the GADM boundaries (my version >>>>>>>>>>>> is 2011). The taluka boundary layer probably holds good today, >>>>>>>>>>>> becuase few >>>>>>>>>>>> talukas get split. Districts get split regularly (every so many >>>>>>>>>>>> years) so >>>>>>>>>>>> the district boundary layer in this GADM set is quite of date (may >>>>>>>>>>>> apply to >>>>>>>>>>>> 2001 or so). The spatial registration (positional accuracy is >>>>>>>>>>>> ~1km, and the >>>>>>>>>>>> spatial detail is of course not as good as the boundaries given in >>>>>>>>>>>> a Survey >>>>>>>>>>>> of India 50k topo, but then that is an unfair standard, so by a >>>>>>>>>>>> more >>>>>>>>>>>> generalized standard, the quality is okay. >>>>>>>>>>>> >>>>>>>>>>>> Sharad >>>>>>>>>>>> >>>>>>>>>>>> >>>>>>>>>>>> On Monday, August 4, 2014 7:20:38 PM UTC+5:30, Dilip Damle >>>>>>>>>>>> wrote: >>>>>>>>>>>>> >>>>>>>>>>>>> Mr Thakkar, >>>>>>>>>>>>> >>>>>>>>>>>>> Please also look at another post (more than one) on this group >>>>>>>>>>>>> about Taluk Shapefiles by Justin Meyers >>>>>>>>>>>>> >>>>>>>>>>>>> So far as I know GADM is the source that has Taluk files. >>>>>>>>>>>>> I am not sure about its completeness and accuracy as on today >>>>>>>>>>>>> >>>>>>>>>>>>> http://www.gadm.org/ >>>>>>>>>>>>> >>>>>>>>>>>>> On Monday, August 4, 2014 6:23:07 PM UTC+5:30, D Thakker >>>>>>>>>>>>> wrote: >>>>>>>>>>>>>> >>>>>>>>>>>>>> thanks Dilip for your hardwork. >>>>>>>>>>>>>> I have been on a lookout for all taluka / tehsil shape file, >>>>>>>>>>>>>> so how do I be in a loop as I am very keen to see the repository >>>>>>>>>>>>>> mail / >>>>>>>>>>>>>> list. >>>>>>>>>>>>>> >>>>>>>>>>>>>> >>>>>>>>>>>>>> On Monday, August 4, 2014 9:50:26 AM UTC+5:30, Dilip Damle >>>>>>>>>>>>>> wrote: >>>>>>>>>>>>>> >>>>>>>>>>>>>>> Sharad, >>>>>>>>>>>>>>> >>>>>>>>>>>>>>> I am working on some things will revert in about a week or >>>>>>>>>>>>>>> may be more. >>>>>>>>>>>>>>> >>>>>>>>>>>>>>> Thejesh, >>>>>>>>>>>>>>> >>>>>>>>>>>>>>> Go ahead, >>>>>>>>>>>>>>> >>>>>>>>>>>>>>> Actually there was one more source a Low Resolution >>>>>>>>>>>>>>> (vertices) District map by VDS technologies. >>>>>>>>>>>>>>> I have it as Polylines in Autocad. I seem to have lost the >>>>>>>>>>>>>>> original file. >>>>>>>>>>>>>>> If anyone has then please share it. (it does not seem to be >>>>>>>>>>>>>>> on their site now) >>>>>>>>>>>>>>> >>>>>>>>>>>>>>> On Sunday, August 3, 2014 11:32:43 PM UTC+5:30, Thejesh GN >>>>>>>>>>>>>>> wrote: >>>>>>>>>>>>>>>> >>>>>>>>>>>>>>>> Actually its not a bad idea to list it on the wiki. Let me >>>>>>>>>>>>>>>> know i will create an account. >>>>>>>>>>>>>>>> >>>>>>>>>>>>>>>> -- >>>>>>>>>>>>>>>> Thejesh GN ⏚ ತೇಜೇಶ್ ಜಿ.ಎನ್ >>>>>>>>>>>>>>>> http://thejeshgn.com >>>>>>>>>>>>>>>> GPG ID : 0xBFFC8DD3C06DD6B0 >>>>>>>>>>>>>>>> On Aug 3, 2014 10:15 PM, "Sharad Lele" <[email protected]> >>>>>>>>>>>>>>>> wrote: >>>>>>>>>>>>>>>> >>>>>>>>>>>>>>>>> Dear Dilip and others: >>>>>>>>>>>>>>>>> >>>>>>>>>>>>>>>>> I have been following this thread with interest, but to be >>>>>>>>>>>>>>>>> honest am a bit lost now. Can someone post a summary of which >>>>>>>>>>>>>>>>> maps >>>>>>>>>>>>>>>>> mentioned so far have what features (which coverage, >>>>>>>>>>>>>>>>> pertaining to which >>>>>>>>>>>>>>>>> year, what attributes (such as census codes), etc.)? Would be >>>>>>>>>>>>>>>>> most helpful. >>>>>>>>>>>>>>>>> >>>>>>>>>>>>>>>>> Sharad >>>>>>>>>>>>>>>>> >>>>>>>>>>>>>>>>> >>>>>>>>>>>>>>>>> On Friday, August 1, 2014 9:03:58 PM UTC+5:30, Dilip Damle >>>>>>>>>>>>>>>>> wrote: >>>>>>>>>>>>>>>>>> >>>>>>>>>>>>>>>>>> Hello, >>>>>>>>>>>>>>>>>> >>>>>>>>>>>>>>>>>> This is an old post. >>>>>>>>>>>>>>>>>> However this is the appropriate place to add an >>>>>>>>>>>>>>>>>> additional source. >>>>>>>>>>>>>>>>>> >>>>>>>>>>>>>>>>>> I had downloaded the set from Grid Geneva many years ago. >>>>>>>>>>>>>>>>>> The original complete source was named as GNV197 which is >>>>>>>>>>>>>>>>>> 24 MB >>>>>>>>>>>>>>>>>> Titled as "HUMAN POPULATION AND ADMINISTRATIVE BOUNDARIES >>>>>>>>>>>>>>>>>> DATABASE FOR ASIA" >>>>>>>>>>>>>>>>>> I am attaching the South Central Asia E00 file. >>>>>>>>>>>>>>>>>> >>>>>>>>>>>>>>>>>> That set contains The disputed areas under the country >>>>>>>>>>>>>>>>>> name IN1 and IN2 >>>>>>>>>>>>>>>>>> >>>>>>>>>>>>>>>>>> This dataset can not be easily found at present on the >>>>>>>>>>>>>>>>>> GRID Geneva site >>>>>>>>>>>>>>>>>> http://www.grid.unep.ch/index.php?lang=en in the same >>>>>>>>>>>>>>>>>> name. >>>>>>>>>>>>>>>>>> may be it is still there somewhere with some other name. >>>>>>>>>>>>>>>>>> >>>>>>>>>>>>>>>>>> For copyright check the metadata file which is here >>>>>>>>>>>>>>>>>> >>>>>>>>>>>>>>>>>> >>>>>>>>>>>>>>>>>> http://geonetwork.grid.unep.ch/geonetwork/srv/en/iso19139.xml?id=835 >>>>>>>>>>>>>>>>>> >>>>>>>>>>>>>>>>>> rgds >>>>>>>>>>>>>>>>>> Dilip Damle >>>>>>>>>>>>>>>>>> >>>>>>>>>>>>>>>>>> On Wednesday, January 4, 2012 9:52:57 AM UTC+5:30, >>>>>>>>>>>>>>>>>> Karthik Shashidhar wrote: >>>>>>>>>>>>>>>>>>> >>>>>>>>>>>>>>>>>>> All the shapefiles for India that I have downloaded do >>>>>>>>>>>>>>>>>>> not show PoK and Aksai Chin as part of India. Does anyone >>>>>>>>>>>>>>>>>>> here have access >>>>>>>>>>>>>>>>>>> to shapefiles that include these territories? Basically >>>>>>>>>>>>>>>>>>> looking to publish >>>>>>>>>>>>>>>>>>> (online) some maps, so want to make sure that it's accurate. >>>>>>>>>>>>>>>>>>> >>>>>>>>>>>>>>>>>>> (I looked through the group archives, and all sources >>>>>>>>>>>>>>>>>>> mentioned there do not show these regions as part of India) >>>>>>>>>>>>>>>>>>> >>>>>>>>>>>>>>>>>>> Thanks >>>>>>>>>>>>>>>>>>> Karthik >>>>>>>>>>>>>>>>>>> >>>>>>>>>>>>>>>>>> -- >>>>>>>>>>>>>>>>> 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]. >>>>>>>>>>>>>>>>> For more options, visit https://groups.google.com/d/optout >>>>>>>>>>>>>>>>> . >>>>>>>>>>>>>>>>> >>>>>>>>>>>>>>>> -- >>>>>>>>>>>> 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]. >>>>>>>>>>>> For more options, visit https://groups.google.com/d/optout. >>>>>>>>>>>> >>>>>>>>>>> >>>>>>>>>>> >>>>>>>>>> -- >>>>>>>>>> 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 a topic >>>>>>>>>> in the Google Groups "datameet" group. >>>>>>>>>> To unsubscribe from this topic, visit >>>>>>>>>> https://groups.google.com/d/topic/datameet/X5kzViRMJKs/unsubscribe >>>>>>>>>> . >>>>>>>>>> To unsubscribe from this group and all its topics, send an email >>>>>>>>>> to [email protected]. >>>>>>>>>> For more options, visit https://groups.google.com/d/optout. >>>>>>>>>> >>>>>>>>>> >>>>>>>>>> -- >>>>>>>>>> Democratizing Forest Governance in India >>>>>>>>>> (In press with Oxford University Press India) >>>>>>>>>> >>>>>>>>>> -- >>>>>>>>> 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]. >>>>>>>>> For more options, visit https://groups.google.com/d/optout. >>>>>>>>> >>>>>>>> >>>>>>>> -- >>>>>> Datameet is a community of Data Science enthusiasts in India. 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