Tag: Mapping

Recent Articles-IJGGS

Integrated approach using RS and GIS techniques for mapping of ground water prospects in Lower Sanjai Watershed, Jharkhand

Author(s) – Binay Kumar, Uday Kumar

ABSTRACT
Remote sensing with its advantages of spatial, spectral and temporal availability of data covering large and inaccessible areas within short time has become a very handy tool in assessing, monitoring and conserving groundwater resources. Satellite data provides quick and useful baseline information on the parameters like geology, geomorphology, land use/land cover, lineaments etc. controlling the occurrence and movement of groundwater (Saraf and Choudhuray, 1998). Remote sensing and GIS technology have opened new paths in groundwater studies. The concept of integrated remote sensing and GIS has proved to be an efficient tool in integrating urban planning and ground water studies. Hydrogeomorphological studies coupled with hydrogeological and structural/lineament have proved to be very effective tool to discern ground water potential zones. In the present study, an attempt has been made to identify the Ground Water Prospect sites in the Lower Sanjai Watershed of Kolhan Division of Jharkhand based on remote sensing and GIS techniques. The groundwater prospect map is a systematic effort and has been prepared considering major controlling factors, which influence the water yield and quality of ground water. The map depicts hydrogeomorphological aspects, which are essential as basis for planning and execution of groundwater exploration. The present information, depicted in the form of a prospect map would provide first-hand information to local authorities and planners about the areas suitable for searching ground water followed by its suitable exploration based on information given for type of well, well depth, water quality and success rate of wells

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Recent Articles-IJGGS-GIS based Groundwater Quality Mapping in Paravanar River Sub- Basin, Tamil Nadu, India

ABSTRACT

Water, the precious gift of nature to human being, polluted day-by-day with increasing urbanization. Although three-fourth of earth is being surrounded by sea only a little portion of it can be used for drinking purpose. The study area Paravanar basin lies in the Cuddalore District of Tamil Nadu. The area is located in the survey of india toposheets No’s 58M/6, 58M/7, 58M/10&11, of the year 2003 in 1:50,000 scale lying between the longitude 11º18’to11º45’ and latitude 79º18’ to 79º45’. The Geo-graphical extent of Paravanar sub-basin is 880 sq km. It is bounded on the north by Gadilam river basin, in the south by Vellar basin, on the east by Bay of Bengal. The study area is typically covered by sedimentary rock types of Cretaceous to Recent age. Though the basin receives moderate to heavy rainfall, it frequently faces water scarcity problems as well as water quality problems in some specific areas. Hence, a GIS based groundwater quality mapping has been carried out in the region with the help of data generated from chemical analysis of water samples collected from the basin. An attempt has been made to study on the quality of ground water for the Villages falling in the Paravanar Sub Basin to interpolate major ions concentration in groundwater by using ARC/view GIS software. Major elements thematic maps on Calcium, Magnesium, Sodium, Potassium, bicarbonates, chlorides and sulphates were prepared from the Hydrochemistry data. Different classes in thematic maps were categorized as (i) good (ii) Moderate and (iii) poor. In the study area sulphates are found to be within prescribed limit for drinking purpose.

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Recent Articles- IJGGS

Suitable site determination for urban solid waste disposal using GIS and Remote sensing techniques in Kottayam Municipality, India.

Author(s)– Nishanth.T, Prakash M.N, Vijith.H

ABSTRACT
Solid waste management is a global environmental problem in today’s world. There is an increase in commercial, residential and infrastructure development due to the population growth and this has negative impact on the environment. Urban solid waste management is considered as one of the most serious environmental problems confronting municipal authorities in developing countries. One of these impacts is due to location of dumping site in unsuitable areas. This paper deals with determination of suitable site for the disposal of urban solid waste generated from Kottayam Municipality and surrounding areas using GIS techniques.

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