Re: [datameet] NGS Survey Marks

2019-08-08 Thread Arun Ganesh 
The one person with quite a bit of knowledge on these is Udaya Kumar of the
inscription stones project.

You should check out this wonderful documentation by him
https://issuu.com/udayakumarp.l/docs/the_story_of_the_bangalore_baseline

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Re: [datameet] NGS Survey Marks

2019-08-08 Thread Devdatta Tengshe 
There are many such physical markers, in various states of disrepair.

See articles like:
https://www.deccanherald.com/content/555826/cubbon-roads-19th-century-stone.html

https://www.thehindu.com/news/national/other-states/kolkatas-great-trigonometrical-survey-link-of-trigonometry-and-towers/article21616151.ece

https://www.deccanchronicle.com/140821/lifestyle-offbeat/article/gps-we-had-gts


Regards,
Devdatta


On Thu, Aug 8, 2019 at 5:42 PM Thejesh GN  wrote:

>
> On Thu, 8 Aug, 2019, 4:44 PM Arun Ganesh,  wrote:
>
>>
>>
>> On Thu, Aug 8, 2019 at 8:20 AM Thejesh GN  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
>>>  points on the Earth's
>>> surface. They are used in geodetic
>>>  and land surveying
>>> . Informally, such marks are
>>> referred to as benchmarks
>>> ,[1]
>>>  although
>>> strictly speaking the term "benchmark" is reserved for marks that indicate
>>> elevation. Horizontal position markers used for triangulation
>>>  are also known as 
>>> triangulation
>>> stations .
>>>
>>>
>>>
>> 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=20
>>
>>
>>>
> Are there any physical marks in real world? Have you seen it?
>
> Also is there simple file with these points. Else I will have to go
> through each and make a list.
>
>
>
>
>
>>>
>>> Regards,
>>> Thej
>>>
>>> Thejesh GN ⏚ ತೇಜೇಶ್ ಜಿ.ಎನ್
>>> http://thejeshgn.com
>>>
>>> --
>>> Datameet is a community of Data Science enthusiasts in India. Know more
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>>> 
>>> .
>>>
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>> 
>> .
>>
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> 
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Re: [datameet] NGS Survey Marks

2019-08-08 Thread Thejesh GN 
On Thu, 8 Aug, 2019, 4:44 PM Arun Ganesh,  wrote:

>
>
> On Thu, Aug 8, 2019 at 8:20 AM Thejesh GN  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
>>  points on the Earth's
>> surface. They are used in geodetic
>>  and land surveying
>> . Informally, such marks are
>> referred to as benchmarks
>> ,[1]
>>  although
>> strictly speaking the term "benchmark" is reserved for marks that indicate
>> elevation. Horizontal position markers used for triangulation
>>  are also known as 
>> triangulation
>> stations .
>>
>>
>>
> 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=20
>
>
>>
Are there any physical marks in real world? Have you seen it?

Also is there simple file with these points. Else I will have to go through
each and make a list.





>>
>> 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
>> ---
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>> To unsubscribe from this group and stop receiving emails from it, send an
>> email to datameet+unsubscr...@googlegroups.com.
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>> 
>> .
>>
> --
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> about us by visiting http://datameet.org
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> 
> .
>

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Re: [datameet] NGS Survey Marks

2019-08-08 Thread Arun Ganesh 
On Thu, Aug 8, 2019 at 8:20 AM Thejesh GN  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
>  points on the Earth's
> surface. They are used in geodetic
>  and land surveying
> . Informally, such marks are
> referred to as benchmarks
> ,[1]
>  although
> strictly speaking the term "benchmark" is reserved for marks that indicate
> elevation. Horizontal position markers used for triangulation
>  are also known as 
> triangulation
> stations .
>
>
>
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=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
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> 
> .
>

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[datameet] NGS Survey Marks

2019-08-07 Thread Thejesh GN 
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
 points on the Earth's surface.
They are used in geodetic  and
land surveying . Informally,
such marks are referred to as benchmarks
,[1]
 although
strictly speaking the term "benchmark" is reserved for marks that indicate
elevation. Horizontal position markers used for triangulation
 are also known as triangulation
stations .




Regards,
Thej

Thejesh GN ⏚ ತೇಜೇಶ್ ಜಿ.ಎನ್
http://thejeshgn.com

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