More data please...The changing landscape of open water data
After 2 years of its launching, the data project by the India Water Portal looks back at how government water data accessibility has changed since then NishaT posted 7 years 9 months ago

Data related to the water sector although available online was very scattered and inaccessible and did not reveal much on its own when India Water Portal (IWP), Arghyam started the data project with the aim of providing better ways of accessing and representing data related to the water sector. The process led to some interesting learnings, revelations and very positive outcomes.

Urban water supply maps
Our experiences of building a visual map of water supply to Chennai from available data sets on water quality and water related infrastructure by NEERI are noted in this article. NishaT posted 7 years 9 months ago

Cleaning, analysis and contextualizing the available data

Chennai water supply map (summer)
Mapping Bangalore's water supply
The experience of building a visual water supply map of Bangalore city from available data sets by NEERI is noted in this article. NishaT posted 7 years 9 months ago

The construction of a visual map of water supply to Bangalore city from available data sets on water quality and water related infrastructure by NEERI as a part of the data project started by India Water Portal, Arghyam was a challenging task.

The visualisation process

Bangalore water supply base map
Mapping Mumbai's water supply
Our experience in building a visual water supply map of mumbai city from available data sets by NEERI is noted in this articles. NishaT posted 7 years 9 months ago

The construction of a visual map of water supply to Mumbai city from available data sets on water quality and water related infrastructure by NEERI as a part of the data project started by India Water Portal, Arghyam was a challenging task.

The visualisation process

Mumbai water supply base map
Chennai's water quality mapped
What does the mapping of the water quality data onto the existing water supply map of Chennai tell us? NishaT posted 7 years 9 months ago

Objective

To  visualize the water quality of Chennai over its existing water supply infrastructure map.

Roadblocks

Chennai city base map
Playing with Uttarakhand rainfall data
What can we do with daily rainfall data especially when it is available in usable formats? NishaT posted 7 years 9 months ago

Daily rainfall information at a weather station level is very useful data. It can be used for analysis and planning. A district average can't help people plan or monitor a situation in a real time manner. It is possible to aggregate up for trends but deaggrating is impossible especially for places like Uttarakhand where the climate can change drastically from one area to the other.  

Rainfall data from Dehradun
Changing pattern: Rainfall maps
How has the rainfall pattern changed in the last 100 years across India? These rainfall maps provide a visual answer. NishaT posted 7 years 9 months ago

Rainfall maps for the period of 100 years were created to see the changing patterns and differences over time.

Data used

MET data was used to generate the maps for every year.

Rainfall maps of India (Source: IMD)
Mapping drought for 100 years
Analysing monthly rainfall data from 1901 to 2002 helps understand the incidence of drought across the country. NishaT posted 7 years 9 months ago

The Indian Meteorlogical Department (IMD) defines drought as ‘the consequence of a natural reduction in the amount of precipitation over an extended period of time, usually a season or more in length, often associated with other climatic factors (viz.

Drought map of India, 1918
What do the numbers reveal about aquifers in India?
Using a motion chart, the behaviour of aquifers using rainfall and well-level data is explained. NishaT posted 7 years 9 months ago

Groundwater is water that is stored underground in aquifers or rock layers than can absorb water. India gets 85% of all its drinking water from this source.   

Rainfall is an essential part of monitoring groundwater as it recharges the aquifer and brings groundwater levels up. Rainfall and well levels are important parameters for data collection.

Motion chart outputs
The connection between well-level data and aquifers
The groundwater data collected by the CGWB has been criticized for various reasons. We analyse this data to understand the discrepancies, if any. NishaT posted 7 years 9 months ago

Groundwater is water that is stored below the ground in aquifers, or rock layers that can absorb water. India gets 85% of all its drinking water from this source.

Andhra Pradesh groundwater Levels
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