On Thu, Aug 8, 2019 at 8:20 AM Thejesh GN <i...@thejeshgn.com> wrote:
> Are there things similar to NGS Survey Marks in India? > > > https://www.ngs.noaa.gov/datasheets/ > > https://en.m.wikipedia.org/wiki/Survey_marker > > *Survey markers*, also called *survey marks*, *survey monuments*, *survey > benchmarks* or *geodetic marks*, are objects placed to mark key survey > <https://en.m.wikipedia.org/wiki/Surveying> points on the Earth's > surface. They are used in geodetic > <https://en.m.wikipedia.org/wiki/Geodesy> and land surveying > <https://en.m.wikipedia.org/wiki/Surveying>. Informally, such marks are > referred to as benchmarks > <https://en.m.wikipedia.org/wiki/Benchmark_%28surveying%29>,[1] > <https://en.m.wikipedia.org/wiki/Survey_marker#cite_note-1> although > strictly speaking the term "benchmark" is reserved for marks that indicate > elevation. Horizontal position markers used for triangulation > <https://en.m.wikipedia.org/wiki/Triangulation> are also known as > triangulation > stations <https://en.m.wikipedia.org/wiki/Triangulation_station>. > > > Yes there are. Survey of India maps have these locations marked with a label 'BM' followed by the elevation. You can find them in these collection of old toposheets: https://zenodo.org/communities/surveyofindia/search?page=1&size=20 > > > Regards, > Thej > > Thejesh GN ⏚ ತೇಜೇಶ್ ಜಿ.ಎನ್ > http://thejeshgn.com > > -- > 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 datameet+unsubscr...@googlegroups.com. > To view this discussion on the web visit > https://groups.google.com/d/msgid/datameet/CAABnYsWk%2BB1DiFUnBUi%3DoUD4LQrHYBMgqrVU4jA2SnhciCCeFg%40mail.gmail.com > <https://groups.google.com/d/msgid/datameet/CAABnYsWk%2BB1DiFUnBUi%3DoUD4LQrHYBMgqrVU4jA2SnhciCCeFg%40mail.gmail.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 datameet+unsubscr...@googlegroups.com. To view this discussion on the web visit https://groups.google.com/d/msgid/datameet/CA%2BGKQr34uYDU-UA_0Ch4k8Lz7okANGs7fsGonAM1_zU44fBeyw%40mail.gmail.com.
