Climate and Weather

Featured Articles
December 12, 2022
Why farmers are not adopting crop insurance in India?
Study looks at behavioral biases in crop insurance adoption
Adoption rate of crop insurance low in India despite government efforts (Image: PxHere, CC0 Public Domain)
September 13, 2022
Chaos in a concrete jungle
Heavy rains and floods have battered Bengaluru yet again. Uncontrolled and unregulated development and concretisation of the city that pays no heed to the ecology and hydrology of the region needs to stop!
Urban flooding in Bangalore (Image Source: Thejas via Wikimedia Commons)
August 11, 2022
India’s rivers in trouble due to high fertilizer load and heavy monsoons
This could lead to water quality crisis reinforcing the need for basin-specific management strategies
Around the world, more than a fifth of nitrogen released by human activity ends up in aquatic ecosystems (Image: Wikimedia Commons)
May 24, 2022
Droughts reduce India's GDP by 5 percent in twenty years
News this fortnight
India, vulnerable to droughts (Image: Pixabay; hbieser)
May 14, 2022
Assessment of climate change over the Indian region
Climate change is real. What are its implications for India? This book presents a first of its kind national forecast on the impact of global warming on climate in India.
Climate change is real. What does it mean for India? (Image Source: Robert Hensley/Wikimedia Commons)
March 29, 2022
India, in the hot seat!
The intensity and duration of heat waves is predicted to increase in India and human induced anthropogenic changes are to blame.
A man sits under the scorching heat of the sun in front of Amer fort in Jaipur (Picture courtesy: Prabhu B Doss, Flickr Commons: CC-By-NC-ND-2.0)
Toolkit on rainwater harvesting: Basics, overview and related technologies
Learn the basics of rainwater catchment systems, components, collection for domestic water supply and the socio-economic as well as health aspects
Rainwater Harvesting
Posted on 18 Aug, 2009 04:25 PM

Rainwater harvesting is an option which has been adopted in many areas of the world where conventional water supply systems have failed to meet the needs of the people. Examples of RWH systems can be found in all the great civilisations throughout history.

Here's an eToolkit on rainwater harvesting that tells you all that you need to know to harvest rain successfully.
Rainwater harvesting basics: All you need to know about recharge pits
A recharge pit allows the rainwater to replenish groundwater by recharging the underground aquifers. It can be built to recharge a borewell or just to help the water infiltration in an area.
rajshekar
Posted on 18 Aug, 2009 04:09 PM

1) Overview:
How to construct a rainwater tank: A comprehensive design and performance guide
The guide gives a detailed overview about the design aspects, different types of systems, costing, performance, water quality and regulatory issues of rainwater tanks
Peter Coombes
Posted on 18 Aug, 2009 04:06 PM

Water Sensitive Urban Design in the Sydney Region has come out with a comprehensive brochure which details out the system overview, design, costing and water quality issues in the construction of rainwater tanks

Click here to download the guide
Map: Annual average rainfall of India
The annual rainfall map of India indicating the volume of rain different regions in the country receive
Maps of India
Posted on 18 Aug, 2009 03:57 PM

Over a range of under 20cm to over 800cm, these two maps, give an idea of the average rainfall received by different regions in the country.

The lowest rainfall receiving areas are Rajasthan, Gujarat, Western Uttar Pradesh, parts of Haryana and Punjab, and the central peninsular region of Karnataka, Maharashtra and Andhra Pradesh.
River basin and sub-basin map of India from the Central Ground Water Board
The Central Groundwater Board have come out with watershed and basin-wise maps for the entire country. Here's an introduction and the link to the resource
Central Ground Water Board (CGWB)
Posted on 18 Aug, 2009 01:04 PM

Watersheds are natural hydrological entities that cover a specific aerial expanse of land surface from which the rainfall runoff flows to a defined drain, channel, stream or river at any particular point. The terms region, basin, catchment, watershed etc are widely used to denote hydrological units.
All you need to know about rain barrels: Stepwise preparation and construction guide
Using a rain barrel is the easiest way to begin rainwater harvesting. Rain barrel serves as a storage unit for rooftop rainwater. It can collect a substantial amount of rainwater.
rajshekar
Posted on 18 Aug, 2009 12:51 PM

Overview

In Bangalore, for example, for an annual rainfall of 900mm over 60 rainy days and a roof area of 50 sq.m.
River systems of Karnataka: Overview of the state's river systems and irrigation patterns
The page has information on the tributaries, catchment area and drainage patterns of the many rivers in the state
Posted on 14 Aug, 2009 03:19 PM

The Water Resources Department of Karnataka has a lot of relevant information on the river systems in Karnataka, irrigation, water resource development projects in Karnataka, notifications and orders, performance budgeting and allocation.
BCIL surveys the citizens of Bangalore to learn about their water conservation practices
Water survey of the citizens of Bangalore conducted by Biodiversity Conservation India Ltd.
Biodiversity Conservation India Lt
Posted on 14 Aug, 2009 12:25 PM

Here's a list of resources relating to the water survey conducted in the city of Bangalore
District-wise report of habitations covered in Himachal Pradesh for water supply and irrigation
A complete list of district wise data on irrigation, water supply, hand pumps distribution and progress of Command Area Development programme in the state of Himachal Pradesh
Himachal Pradesh Irrigation and Public Health Department
Posted on 14 Aug, 2009 12:19 PM

District-wise report of habitations covered for water supply, hand pumps, irrigation, flood control and command area development

Read more
Bacteriological quality of water samples of a tertiary care medical center campus in North Western Himalayan region
Studies conducted in the North Western Himalayan region have found that surface and groundwater samples are highly contaminated with faecal matter in the region
Internet Journal of Third World Medicine
Posted on 14 Aug, 2009 11:53 AM

A study published in the The Internet Journal of Third World Medicine of bacteriological quality of water samples of a tertiary care medical center campus in North Western Himalayan region, more specifically in Kangra district of Himachal Prad
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