Satellite imagery only goes back so far. To measure the rate of ice loss across the Himalayan glaciers, researchers turned to recently declassified spy satellite photos from 1975. The photos were used to create a digital elevation model (above) which was compared with more recent data. They concluded that the rate of ice loss was accelerating: it was twice as much from 2000 to 2016 than it was from 1975 to 2000. Columbia University, Science News. [Geography Realm]
If you’re interested in election results maps from around the world, you really ought to be following Maps Mania, where Keir provides first-rate coverage. Case in point, his post about maps of the recent elections to India’s Lok Sabha, its lower house of parliament, which points to interactive maps from The Indian Express and Reuters (also The Financial Times, but that’s behind a paywall).
Pilar Maria Guerrieri’s Maps of Delhi, a collection of 66 maps from the 19th century to the present day, comes out from Niyogi Books in August. Nevertheless, the wire service IANS has an article about it now: it reveals how the book came about because the author wished it had been available when she began working on her doctorate.
“While I was searching specifically for the pre and post independence maps in several Indian archives and institutions, I slowly found and collected all the other documents. At the end of my PhD I realised that if I had the complete collection of maps at the beginning of my studies, my research would have been much more easier and smoother. I decided to publish the whole collection with the aim that it will turn to be useful for scholars interested in understanding the capital of India,” Guerrieri told IANS in an interview.
Sajjad Anwar and Sanjay Bhangar have been playing with train, station and schedule data from Indian Railways, one result of which (so far) is this reachability map—all the destinations reachable by a single train (i.e., without a transfer) from a given station. [Sajjad Anwar]
Previously: A Map of India’s Railway Network.
Citing security concerns, India’s interior ministry has rejected Google’s plans to bring Street View to that country.
Writing for The Wire, Sumandro Chattapadhyay and Adya Garg discuss the recent Indian draft bill that proposes fines and jail terms for publishing a map that shows the “incorrect” Indian borders. They provide some background, setting out the government’s past history of trying to regulate maps of India, and point out some flaws in the proposal:
The regulatory measures proposed by the bill do not only cause worry but also bewilderment. Take for example Section 3 that states that ‘no person shall acquire geospatial imagery or data including value addition of any part of India’ without being expressly given permission for the same or being vetted by the nodal agency set up by the Bill. If implemented strictly, this may mean that you will have to ask for permission and/or security vetting before dropping a pin on the map and sharing your coordinates with your friend or a taxi service. Both involve creating/acquiring geospatial information, and potentially adding value to the map/taxi service as well.
Let’s take an even more bizarre hypothetical situation—the Security Vetting Agency being asked to go through the entire geospatial data chest of Google everyday (or as soon as it is updated) and it taking up to ‘ three months from the date of receipt’ of the data to complete this checking so that Google Maps can tell you how crowded a particular street was three months ago.
The government of India has long been obsessed with maps that failed to show its official and “correct” borders—i.e., maps that showed the Pakistan-controlled parts of Jammu and Kashmir as part of Pakistan, or Chinese-controlled Aksai Chin and Chinese-claimed Arunachal Pradesh as part of China. Maps for an international audience that showed the de facto situation on the ground rather than the Indian claim have been censored at the border. Now things have escalated: a draft bill proposes drastic penalties: up to seven years in prison and a fine of up to Rs 100 crore (about $15 million U.S.; 1 crore = 10 million) for publishing a map or geospatial data with the “wrong” boundaries. News coverage: Hindustani Times, Quartz India, Washington Post. [Stefan Geens/WMS]
Previously: India Censors The Economist’s Kashmir Map; India’s Mapping Panic Continues; The Survey of India Isn’t Helping; India Stamps Publications’ “Incorrect” Maps at the Border; Maps Must Be Cleared by the Survey of India; Google Earth, India and Security—Again; Google Earth: Indian Reactions.
Arun Ganesh talks about making a multilingual map of India: “Hardly anyone in India even knows that OSM can handle regional languages, simply because its not visible anywhere on the map. After some recent interest from the community in making regional language maps for openstreetmap.in, I decided to give this a shot to make a multilingual place map for India using OSM and Mapbox Studio that I have been playing with recently.”