Andhra Pradesh

Organizer: International Water Management Institute

Eligibility: PhD in the field of hydrogeology/environmental/irrigation/civil engineering or a closely related water resources discipline.

Description:

The International Water Management Institute (www.cgiar.org) is a non-profit, scientific organization engaged in research and capacity building activities for developing countries. Our mission is to overcome poverty through the better management of land and water resources. Working with diverse partners and supported by the Consultative Group on International Agricultural Research (www.cgiar.org), IWMI seeks to translate its research findings into actionable recommendations for policymakers, resource managers and poor rural communities. IWMI is based in Colombo, Sri Lanka and has regional offices in 12 countries in Asia and Sub-Saharan Africa. IWMI is one of the 15 research centers of the Consultative Group on International Agricultural Research.

The report presents the groundwater balance for the Southern Channel command area of the Pennar delta canal system as a part of the conjunctive use studies in the area. In a hydrological system, surface water flows, low or high, do not necessarily coincide with the low or high levels in groundwater, because of the sluggishness of the groundwater flow compared to surface water flow.

These guidelines drafted by Department of Rural Development (Andhra Pradesh) are conceptualized in the broad framework of the Hariyali guidelines and the experiences from Andhra Pradesh Rural Livelihoods Programme (APRLP), and are intended to strengthen the processes, and provide clarity and purposefulness in implementation of watershed development projects in Andhra Pradesh. They have been formulated on the basis of several process studies undertaken as well as through wide-ranging consultations with all stakeholders and experts.

The report deals with groundwater table and hydrochemistry of the Kakinada coastal aquifer in East Godavari, Andhra Pradesh.

In this study, a two layered finite difference method has been generated for groundwater flow analysis of Ghataprabha sub-basin of Krishna river basin. The conceptual model has been calibrated for steady state conditions and validated for both steady state and transient conditions through USGS, 3D Finite Difference Code and MODFLOW. Various applications were tried out on the calibrated model, like River-Drain influencing the aquifer, reasons for waterlogging and drying out of wells and well design strategies.

The report on Suddagedda basin, a representative basin of the east flowing rivers of medium sized basins in the east coast of India, presents the outcomes of the infiltration tests carried out using Double Ring Infiltrometer. The basin soil is mainly grouped into three types viz clay loams to clay, sandy loams and forest & loamy skeletal. A total of twenty-eight infiltration tests have been conducted using double ring infiltrometers.

The report presents a hydrogeological and geochemical study of groundwater flow for the Suddagedda basin of Andhra Pradesh. Planning of water resources development projects calls for an understanding and analysis of the hydrological characteristics of the region. The hydrogeology and geochemistry of the basin needs to be investigated particularly for a groundwater resources development project.

The report presents the evaluation of water supply system of Kakinada town in Andhra Pradesh. The neglect of hydrology of a region, while undertaking planning and development works in an urban environment, has serious consequences, the most notable being non-availability of enough potable drinking water to citizens. Water budget studies can be undertaken with all the available records to improve the functioning of such systems and to identify additional alternate resources.

The report attempts to analyze the shallow groundwater table and water quality data for about 20 years pertaining to the Krishna delta. The trend analysis of groundwater level data of shallow wells indicates that in the upper part of the delta, the groundwater table moved up during the period 1979 to 1999. This may be due to the dense canal network in the delta and increase in irrigated area over a period of time.

The report deals with the artificial recharging of an unconfined aquifer with injection well in the Hukkeri taluka in Ghataprabha sub-basin of Krishna river. The Ghataprabha sub-basin of Krishna like most river basins of peninsular India has been facing groundwater development problems varying in nature and severity. It has got a wide spectrum of issues such as cases of failure of wells at several places on the one hand, while some areas becoming unfertile due to waterlogging.