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Raj Bhagat P #Mapper4Life Profile picture
@rajbhagatt
Sep 23, 2020 • 3 tweets • 2 min read • Read on X
#Rampur is the most commonly found name in India as per the Census' village list. #Map shows the villages named Rampur. The name is highly concentrated around UP, Bihar, WB
This is based on what was analysed by @zeusisdead

Underlying data is from @MapMakinMeyers Image
Note: Underlying data is not 100% complete and I didn't intend to add Pura or Puram but there might be a few from Karnataka that might have been shown in map due to data entry errors.

Read more from @zeusisdead on this topic
nationalinterest.in/in-search-of-a…
This is a follow up to my tweet on "Thiru"

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More from @rajbhagatt

Raj Bhagat P #Mapper4Life Profile picture
Oct 15
#Thread without Maps on #floods
If physical problems and solutions are known theoretically, then why are we not able to solve flooding situations in our cities whether it is Chennai or Bengaluru or Delhi?

There are 4 layers to the prob - Technical, Planning, Finance, Governance
Technical:
Our cities are not designed to take the rainfall that they face. The storm water drains are inadequate and the network is disconnected. Most of the drains are built in adhoc manner (if they are built). But why does this happen?
Cities don't have a storm water management plan. A plan that can comprehensively provide the technical details on the storm water network based on run off calculations, land etc is absent in most cases or poorly prepared in the remaining.
Why hasnt been it prepared?
Read 16 tweets
Raj Bhagat P #Mapper4Life Profile picture
Oct 2
#Thread on Vijaywada floods
In September this year, after a spell of heavy rain, Vijayawada was affected by severe floods. This thread would explore the geographical reasons behind it and what can be done from here.
(1/n) Image
2. #Map shows the profile of four major rivers in India. Vijayawada is in the lower section of Krishna river and close to where the river exits the plateau and enters the deltaic flat plains. Image
3. There are 3 basins in the region whose histories are intertwined. Vijayawada city is sitting on the Krishna and Kolleru systems. Though the Krishna river was also flooding, the city was actually flooded by Budameru Vagu, a seasonal river which is part of the Kolleru system Image
Read 26 tweets
Raj Bhagat P #Mapper4Life Profile picture
Aug 24
Google maps shows my GPS position to be well inside the sea in #Chennai Marina beach. But I was away from it. Why?

#Thread continuation of my previous one on Chennai #Marina beach
1/n
Image
Image
In the previous thread, I had explained how Marina beach is growing (sea becoming more and more land). Because of the longshore drift, lots of sand hence gets settled in the mouths of Cooum River. Image
To prevent further siltation in the mouth of the river, the government had built Groynes so that the capacity of the river doesn't get reduced. Image
Read 15 tweets
Raj Bhagat P #Mapper4Life Profile picture
Aug 16
#Thread
#Marina beach is one of the most iconic destinations in Chennai and one of the most visited beaches in the world. However the beach as we see today didn't exist a century ago.

This thread explains the formation of #Chennai's Marina beach
1/n Image
This map below shows the approximate original coastline of Chennai during British era. It was much closer to the Kamarajar road. A promenade was developed during the british era and that is when it got the name, "Marina". However the big sandy expanse itself didnt exist
2/n Image
Seas are very dynamic in nature. Whenever the waves hit the beach which is called as "swash", they bring in sand and when the water goes back ("backwash"), it removes the sand. This balance is critical for beach existence.
Read 24 tweets
Raj Bhagat P #Mapper4Life Profile picture
Jul 30
#Thread of #Maps that can help understand the #WayanadLandslide incident, its causes & impact

Please note that all the maps below were created with the information available as of now. Some of the damages outside the areas denoted might have been missed as info keeps coming Image
1. This part of #Wayanad is within the Chaliyar river system. It is a west flowing river which drains into the laccadive sea on Kerala coast (though at this part it is north and east flowing)

This map shows where the water drains. The area that is affected is shown in red. Image
2. In this particular section, the stream arises at around 2000 metres above mean sea level and has a steep fall of around 1200 m to reach Vellarmala, Chooralmala section. Image
Read 8 tweets
Raj Bhagat P #Mapper4Life Profile picture
Jun 1
#Thread
A collection of geographical myths & unknown facts about #Kanyakumari

1. Kanniyakumari is NOT the southern most point of mainland India, the southern most point is near star of the sea rock in nearby #Kovalam. In the last 20 years,it has been popularized as sunset point Image
2. Contrary to popular opinion, the three seas (Arabic Sea, Bay of Bengal, Indian Ocean) don't meet in Kanniyakumari.

Officially, the sea around Kanniyakumari district is Laccadive sea. Check map below for official extents of the seas and their names Image
3. Before 1956, Kanniyakumari was part of Travancore which pre-independence was a separate princely state. The South Travancore lines (a series of fortifications) were built to protect #Travancore. Currently, a small amount of this fortification is visible near Kanniyakumari
Image
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Read 7 tweets

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