Tamil Nadu

The report presents the analysis of surface runoff and baseflow carried out for the Ariyanayakipuram anicut, Tambarapani basin, Tamil Nadu for a period of 13 years (1983-95). The hydrological behavior of catchments is a very complex phenomenon and is controlled by a large number of climatic and physiographic factors that vary in time and space. The analysis shows that the contribution of baseflow at Ariyanayakipuram anicut was observed to be more.

This document describes the efforts made by the Tamil Nadu Water Supply and Drainage Board (TWAD), to tackle the growing water crisis in the state and describes how it addressed it very differently, unlike the previous reform strategies.

The study attempts to explain flood wave propagation in natural and artificial channels within the perspective of site-specific rating curve. The study looks at the impacts of channel characteristics – bed slope, flood plains, channel shape, expansion-contraction combination, inactive storage, Manning’s roughness, expansion and contraction on flood wave propagation.

Organizer: Water and Food Equitable Distribution Organisation (WEDO)

Topics:

• Making more surface water available
• Sustainable and enduring solutions for water

Venue: Anna University, Chennai

The study develops a water balance of a sub-basin, Pachaiar, of the Tambarapani river basin in Tamil Nadu. The various components of water balance have been estimated by using the process generating module of Simulator for Water Resources in Rural Basins (SWRRB), a model developed by the United States Department of Agriculture (USDA).

The performance of the USDA model has been validated internationally by various researchers. Since the model required continuous weather data, a time series of it has been generated using another model. The efficiency of this model has been checked with a meteorological station outside the basin.  

The study assesses the quantum of seepage to the aquifers through percolation ponds and establishes their zone of influence, and based on these, correlates the quantum of seepage to the total storage loss in the pond. The assessment of the benefits of the ponds, in terms of artificial recharge to the aquifers is done through an intensive study of two percolation ponds in Tamil Nadu.

A percolation pond is a small water harvesting structure, constructed across a natural stream or water course to harvest and impound the runoff from the catchments for a longer time, to facilitate vertical and lateral percolation of impounded water into the soil substrata, thereby recharging groundwater storage in the zone of influence of the pond.

Organizer: Water and Food Equitable Distribution Organisation (WEDO)

Topics:

• Making more surface water available
• Sustainable and enduring solutions for water

Venue: Henry Maudslay Hall, Anna University, Chennai

Description:

WEDO ( Water and Food Equitable Distribution Organisation) is a unique Initiative of professionals and experts with hands-on experience, a Think-tank of the free enterprise with lateral thinking to design and evolve projects on a scientific and technological basis to provide acceptable engineering solutions to be proposed to the nation:  Models, designs and plans for  Production,  storage  and distribution of vital resources in India.

Organizers: Indian River Network (IRN) Lawyer Forum, National Law School of India University and Tamil Nadu Environmental Council Lawyer Forum

Venue: Malligai Farm - Bennangur, (Near Bangalore), Tamil Nadu

Description:

We are happy to inform that a training programme for south Indian Lawyers involved in environmental activities will be conducted by the Resource persons from National Law school of India University with materials and valuable certificate for the participants and by eminent faculties from NGO's.

Post forwarded by : Sekhar Raghavan