Rainfall and other forms of Precipitation

Featured Articles
September 13, 2022 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)
March 29, 2022 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)
February 10, 2022 47% of India’s population is vulnerable to floods, says IMD's Climate Hazards Atlas
(Image: J Surya, CC-SA-4.0 International)
July 4, 2021 A study finds that while forests existed in peninsular India, they were replaced by savanna grasslands over time. And the weakening monsoon was the culprit!
Savanna grasslands at Nannaj Bustard Sanctuary, Solapur, Maharashtra (Image Source: Raju Kasambe via Wikimedia Commons)
June 30, 2021 Climate analysis predicts mismatch in rainfall and temperature patterns with crop phenology: Soybean, Cotton, Wheat and Gram crops at risk, finds Institute for Sustainable Communities study across three major regions of Maharashtra.
Maharashtra faces an increasing risk from climate change which is likely to impact the production of four major crops - Soybean, Cotton, Wheat and Gram.  (Image: BAIF Flickr, CC BY-NC-SA 2.0)
December 13, 2019 A study highlights the need to scale down the export of rice, maize, buffalo meat and other items to conserve groundwater in India.
A farmer uses a hosepipe to irrigate crops at her farm in Nilgiris mountains, Tamil Nadu (Image: Hamish John Appleby for IWMI, Flickr Commons, CC BY-NC-ND 2.0)
Groundwater assessment using remote sensing data - A case study of the Bhadra river basin - Paper presented at the National Seminar on Water and Culture (2007)
This paper assesses groundwater balance using the water table fluctuation method. Posted on 13 Feb, 2011 11:21 PM

This method is a mathematical model, in which all the components in the water balance equation are known, and the only component which is considered unknown is the rainfall recharge.

Seasonal prediction of the Indian monsoon – An assessment using atmospheric general circulation models (AGCMs) - An article from Current Science
This article presents a project where prediction of Indian summer monsoon rainfall by five atmospheric general circulation models (AGCMs) during 1985–2004 was done. Posted on 13 Feb, 2011 03:57 PM

The project was a collaborative effort of the coordinators and scientists from the different modelling groups across the country. All the runs were made at the Centre for Development of Advanced Computing (CDAC) at Bangalore on the PARAM Padma supercomputing system.

Prediction of the Indian summer monsoon rainfall using a state-of-the-art coupled ocean–atmosphere model - An article from Current Science
This article deals with the prediction of the Indian summer monsoon rainfall using a state-of-the-art coupled ocean–atmosphere model. Posted on 13 Feb, 2011 03:04 PM

 A model of the coupled ocean–atmosphere system, the climate forecast system (CFS), from the National Centre for Environmental Prediction (NCEP), USA, has been ported onto the PARAM Padma parallel computing system at the Centre for Development of Advanced Computing (CDAC), Bangalore and retrospective predictions for the summer monsoon (June–September) season of 2009 have been generated, using five initial conditions for the atmosphere and one initial condition for the ocean for May 2009.

WMO/ESCAP Panel On Tropical Cyclones - 38th session, 21st - 25th February, 2011, New Delhi
Posted on 07 Feb, 2011 12:00 PM

WMO/IMD/ESCAPTo improve tropical cyclone warning systems in the Bay of Bengal and the Arabian Sea through effective operational plan

Organizers: India Meteorological Department(IMD), World Meteorological Organisation(WMO), Economic and Social Commission for Asia and the Pacific (ESCAP)

Venue: Scope Complex, Lodi Road, New Delhi

Water and its quality in ancient encyclopedias of Karnataka - Paper presented at the National Seminar on Water and Culture (2007)
This paper highlights how ancient texts of Karnataka have dealt with various issues of water which range from cloud formation to finding ground water. Posted on 30 Jan, 2011 06:40 PM

The author looks at three ancient Kannada and Sanskrit texts - Lokoparam, Manasollasa, Shivatattvaratnakara. All these texts were written between the 12th and 18th century. These texts record hydrological data ranging from cloud formation to traditional methods of preserving potable water.

Geo-hydrological studies for augmentation of spring discharge in the Western Himalaya – Final technical report by the MOWR
This study examines the geomorphological and anthropogenic influence in the spring recharge zones on spring water quality and discharge Posted on 23 Jan, 2011 04:39 PM

 It is an attempt to understand the effect of rainfall, physiography, lithology, slope and aspect, land use practices, vegetation, altitude, soil type and anthropogenic interference (e.g., road construction and settlement etc.) and other characteristics in the spring recharge zone on the water yield and water quality of the selected springs in the mid-altitudinal belt (lesser Himalaya) in western Himalaya (Uttaranchal).

Towards adopting nanotechnology in irrigation: Micro irrigation systems
Excessive and unbalanced use of water is a common practice to grow more; to earn more. Micro Irrigation System helps reduce water loss occurring through evaporation, conveyance and distribution. Posted on 21 Jan, 2011 07:36 PM

India is predominantly an agricultural country and even with current orientation towards services, still agriculture contributes ¼th of total GDP of the country, 15 percent of total export and 65 % of total population’s livelihood.

Sustainable water management initiatives in Konkan under threat - A report
an intricate system of tanks, channels and falls which supplies water to the Panderi village and goes down as a free flowing stream, to irrigate a plantation of arecanut, pepper and mangoes- this intricate system is now beginning to fall apart. Posted on 21 Jan, 2011 02:09 PM

Guest Post by: Parineeta Dandekar

At the first sight, Daarche Paani (‘water at the doors’) appears unreal.. on a small flat plateau called ‘Sadaa’ in konkan, an elegant cobbled walkway leads a puzzled visitor to stairs carved in stone, which go down to an ancient grove, and here is an intricate system of tanks, channels and falls which supplies water to the Panderi village and goes down as a free flowing stream, to irrigate a plantation of arecanut, pepper and mangoes in a village called Gudaghe. When I visited the place, I could see three eminent visitors, a silent lady washing her load of clothes, a fairy bluebird splashing at a tank and a huge moonmoth in one of the trees.

Stone walkway and ancient mango trees leading to Daarche PaaniStone walkway and ancient mango trees leading to Daarche Paani.
Photo: Parineeta Dandekar

Heavy Rains in Sri Lanka - Update from Earth Observatory
Heavy rains forced 120,000 people out of their homes in Sri Lanka, the Associated Press reported on January 11, 2011. Posted on 20 Jan, 2011 01:48 PM

Sri Lanka’s government stated that the death toll from flooding had risen to 13, and officials were arranging food drops to hardest-hit areas in the east.

Heavy Rains in Sri Lanka

India s groundwater challenges and the way forward
The groundwater crisis is acquiring alarming proportions in many parts of the country. Strategies to respond to groundwater overuse and deteriorating water quality must be based on a new approach involving typologising the resource problems and redefining the institutional structure governing groundwater. Posted on 18 Jan, 2011 11:42 PM

India’s Groundwater Challenge and the Way Forward
P S Vijay Shankar , Himanshu Kulkarni , Sunderrajan Krishnan

The groundwater crisis is acquiring alarming proportions in many parts of the country. Strategies to respond to groundwater overuse and deteriorating water quality must be based on a new approach involving typologising the resource problems and redefining the institutional structure governing groundwater. This approach is based on the notion of groundwater as common property.

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