India

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The report deals with the transportation behavior of lindane, a pesticide used commonly in the agricultural and public health sectors in India, through sandy and loamy soils. The contamination of groundwater by pesticides is a worldwide problem because of their tissue degradation and carcinogenic nature. They are bio-accumulative and relatively stable and therefore, require close monitoring.

The pesticides used for agricultural, forestry and domestic activities leach into the groundwater and therefore, it is very important to study their transportation behavior in different types of soil media.

The report deals with development of reaeration coefficient for Indian condition using mathematical approach and field studies. Of the various constituents, which determine the quality of water, Dissolved Oxygen is the most important parameter indicating the health of a stream. There is a continual replenishment (reaeration) or utilization (deoxygenated) of Dissolved Oxygen due to inflow of waste load at different points in the stream. When a waste load is discharged into a flowing stream, it is mainly subjected to advection, dispersion and reaction kinetics. Waste Load Allocation (WLA) studies provide information to assist in making effective decisions on levels of treatment required for a source or sources of pollutant loads.

The report attempts drought characterization in arid and semi-arid climatic regions of India. Drought frequency and intensity are a function of the dimensionless climatic parameter derived as a ratio of mean annual potential evapotranspiration to mean annual precipitation (Ep/Pa).

Way back in May 2007, C.S. Sharada Prasad ("CSP") joined Arghyam and India Water Portal and wrote this blog post entitled "A New course" at that time: 

June 30th was Sharada Prasad's last day at Arghyam. He is moving on to do a Ph.D. with the Energy and Resources Group at the elite University of California, Berkeley. It is a testament to CSP's capability, motivation and drive that he secured this admission (he has no acrademic background in energy or resources, being a software engineer by training), and also secured a full teaching assistantship. 

Highlights

• India: World Bank Aid of USD 372 million for Coastal Zone & Water Supply
• India: Centre Approves National Mission on Micro Irrigation
• Chennai: 45 New Machines to Clear Clogged Sewers
• Stockholm Water Award 2010: Phnom Penh Water Supply Authority is the Winner
• Grundfos: World’s Largest Pump Manufacturer by VDMA List

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DAI

Location: India
Last Date: July 15, 2010

Floods are common in most parts of India particularly during the monsoon season. Flood control and mitigation involves flood plain mapping, zoning, insuring and warning systems as floods cannot be avoided. These measures minimize damage and loss in terms of life and property. In this regard real-time data based decision supports systems (DSS) are crucial for effective flood management.

The Soil Conservation Services Curve Number (SCS-CN) method presented in this report has been applied to two large catchments in sub-humid regions of India and its performance evaluated. The variation of the curve number is examined and discussed and a critical evaluation of the employment of the single linear reservoir routing technique and linear regression technique presented.