Latest News : Second Circular Released

Information on Symposia per Science Theme





Theme No.

Theme Title

Number of Symposia proposed

Symposia Title

Symposia Conveners

Biographical sketch of the Conveners

Keywords

Abstract

44

Non-invasive 3D Groundwater Mapping for Resource Management


Dr. Shakeel Ahmed

shakeelifcgr@gmail.com

(India)


Dr. Subash Chandra

schandra75@gmail.com

(India)


Prof. John W. Lane, Jr.

jwlane@usgs.gov

(USA)





6

Assessing Sub-Surface from Space and Remote Sensing

Saumitra Mukherjee saumitramukherjee3@gmail.com

(India)


Atiqur Rahman (India)


1. Prof. Mukherjee has more than 25 years of experience in teaching and research in environmental sciences. He is basically a geologist, has supervised a number of doctoral theses and also led the research projects both at national and International levels. He is presently dean of the SES.


2. Prof. Atiqur Rahman has multiple degree in Geography and geoinformatics. He has about 20 years’ experience of teaching and carried out basic research in the field of remote sensing. He completed a number of important projects with greater social relevance.

Geoinformatics, Climate Change, Remote Sensing, GRACE

Satellite remote sensing together with GIS provides an opportunity for better observation and more systematic analysis of various geomorphic units, lineament features, following the integration with the help of Geographical Information System to demarcate the groundwater potential zones. The remote sensing data helps in fairly accurate hydro-geomorphological analysis and identification and delineation of land features. There are a wide-range of global remote sensing data sets (TRMM, SSM/I, Landsat TM, AVHRR, AMSR-E, ASTER, etc.) supported by aerial methods and ground truth by multi sensor, as well as hyperspectral information. Geomorphological variability due to tectonic activity coupled with land use/land cover changes inferred by geospatial techniques can be useful tool. The Gravity Recovery and Climate Experiment (GRACE) twin-satellite data is another important data which provides a direct measure of monthly total water storage at regional level. These advanced methods are being used for microzonation of groundwater potential locations and its quality assessment by inferring landforms, geological structures and vegetation indices on the aquifers. This symposia intends to focus on the subsurface water investigation on difficult areas of Earth and other planets.

High Resolution 3D Geophysical Mapping of Geological Formations using Airborne Survey

Esben Auken esben.auken@geo.au.dk

(Denmark)


Subash Chandra (India)


1. Prof. Esben Auken is one of the leading geophysicist in the field of airborne geophysics. He has long experience of post graduate teaching, Ph. D supervision and leading various national and international projects. Currently he is heading the Hydrogeophysics Research Group devoted to research in high resolution mapping methods for groundwater resources and data integration


2. Dr. Subash Chandra is a core scientist of Indo-French Centre for Groundwater Research. Dr. Chandra has been working in several national and international projects dealing with hydrogeological problems in different problematic terrain in India. He has played key role in introducing airborne geophysics in the field of Hydrogeology in India. He is currently leading couple of projects on Airborne Geophysics for aquifer mapping, smart city, etc.

Airborne, Geophysics, Hydrogeology, Aquifer, Mapping, Resistivity

Mapping of the near surface of the Earth for generating precise knowledgebase for most of the natural resources (viz., water and mineral) and structural settings is gaining importance with the time. Particularly the groundwater resources are dynamic in nature that vary with space and time depending on the geological variability, degree of heterogeneity and rate of exploitation. Whether groundwater budgeting or siting a sustainable well or managing groundwater recharge, etc., it need to be dealt at regional scale. Such mapping faces two major issues i.e. (i) optimally dense data in accordance with the degree of variability and (ii) rapid measurement to cover regional scale for comprehensive knowledge.


Airborne geophysical mapping addresses both the issues. With the technological advancement airborne electromagnetic and magnetic methods have been globally accepted as proven non-invasive technologies to provide high-resolution (meter scale) and comprehensive map at large (watershed/basin) scale rapidly. Airborne geophysical are increasingly being employed widely for groundwater mapping and have produced very encouraging and exceptional results. It is time now to discuss and compare the results obtained in different countries and design improvements both in data acquisition and interpretations. The symposia is aimed to provide ample opportunity to share the latest technologies, emerging methodologies on processing and interpretation and findings on high-resolution 3D geophysical mapping using airborne geophysical methods

Characterization of Litho-units for Aquifer Delineation by Integrating Ground Survey Data

Prabhat C. Chandra chandrapc67.gwgp@gmail.com

(India)


Kishore C. Naik (India)


1. Dr. Prabhat C. Chandra is an extremely experienced Geophysicist carried out extensive work on Geophysical survey using electrical methods. He developed a large number of new techniques for effectively carrying out Electrical survey and their interpretation.


2. Mr. Kishore C. Naik is presently the chairman of the CGWB, a premier government organization responsible for the groundwater resource. He is an engineer cum hydrogeologist and has widely worked in different terrenes.

Hydrogeology, fissured, litho-units, basement, Resistivity

The near-surface geophysical methods and techniques distinctively provide adequate subsurface information economically. However, the hydrogeological transformation of geophysical attributes is complex. But, it is an essential, important and challenging process to characterize the subsurface lithologic and groundwater conditions adequately or at least to get a satisfactory realization of the dominant conditions. Complexity in lithology combined with spatial hydrogeological heterogeneities complicates the transformation and therefore integration of geophysical methods is in vogue to discriminate or characterize the lithology and hydraulic properties and come out of the uncertainties and the nonlinearities. The parameters provided by different surface and subsurface geophysical methods like electrical, electromagnetic, seismic, magnetic, gravimetry and radiometry at varied scales and resolutions through their conventional and tomographic approaches and the geologic and hydraulic information are being quantitatively converged using a common inversion strategy to estimate the lithologic and hydrogeological properties accurately which would not have been possible independently through any discrete method. The session provides ample opportunity to present and share with the gathering of the international community of geoscientists the latest researches, innovative and economic approaches, emerging trends and findings on the challenging issues of lithologic and aquifer characterization.

Geological and Geotechnical Characterisation for Fracture Pathway in Hard rocks

Subash Chandra schandra75@gmail.com

(India)


Rana Chatterjee (India)


1. Dr. Subash Chandra is core member scientist of Indo-French Centre for Groundwater Research. Dr. Chandra has been working in several national and international projects dealing with hydrogeological problems in different problematic terrain in India. He has played key role in introducing airborne geophysics in the field of Hydrogeology in India. He is currently leading couple of projects on Airborne Geophysics for aquifer mapping, smart city, etc.

2. Dr. Rana Chaterjee basically geologist but has worked as hydrogeologist in the Central Ground Water Board where he gained about 20 years’ experience working in a number of real life projects in groundwater exploration and management.

Fractures, weathered rock, lineaments, connectivity, aperture

Although overall water on the Earth virtually remains constant, the increasing population and associated increase in the water utilization towards irrigation, industrial and domestic needs, etc. are stressing the natural water resources system. Over past few decades’ groundwater utilization towards irrigation also have increased significantly causing dwindling of the groundwater level. Specially the hard rock that covers roughly 20% land surface of the Earth are more affected due to its limited aquifer thickness. In the receding groundwater level condition, fractures are now the main contributor to the hard rock hydrogeology. Thus the knowledge of the fractures in hard rock is topic of interest in this symposium in contexts of:

  • reservoir exploitation for water supply;

  • contamination from subsurface waste repositories;

  • geotechnical applications including effects on underground storage reservoirs, tunnels and other structures);

  • Managed aquifer recharge and development of groundwater resources; and

  • locating potential zones for tube well, etc.

This symposium is aimed to provide a global platform to present and share the latest researches, innovative and economic approaches on geologic and geotechnical characterization of the fracture pathways and its groundwater potentiality in hard rocks.

Geophysically Constrained Hydrogeological Parameters Estimation

Mohammed Israil mohdfes@iitr.ac.in (India)


Sarah

(India)


1. Prof. Mohammed Israil from the Department of Earth Sciences, Indian Institute of Technology Roorkee is an experienced geophysicist with a long experience of post graduate teaching and research in the field of Electrical and Electromagnetic methods of Geophysical exploration.

2. Dr. Sarah from the Earth Sciences Department of Kashmir University is an experienced hydrogeologist. Carried out extensive research in hard rock hydrogeology and developed new methods of analysing hydrogeological parameters.

Dar-Zarrouk parameters, Electrical resistivity, R-C analogue, hydrogeological parameters, Non-invasive

The analogy between electrical and hydrological parameters exists since a long time e.g., Archie’s law as well as the simulation of groundwater flow using a network of R-C analogues. Determination of the electrical properties or electrical parameters of an aquifer system is economical and non-invasive compared to direct estimation of hydrogeological parameters. There has been tremendous research and publications on the use of Dar-Zarrouk (D-Z) parameters estimated from Geophysical (Vertical Electrical Soundings or Electrical Resistivity Tomography) data. This symposium is expected to discuss various aspects of translating the geophysical parameters into hydrogeological parameters with a direct or indirect relations as well as constraining the estimates of hydrogeological parameters with the economically known geophysical parameters through non-invasive methods.

Diverse Applications in Discovering paleo-channels, Optimizing Artificial Recharge & Waste Disposal Sites, Smart Cities etc

S.K. Verma skvngri@gmail.com (India)


Jainendra K. Rai (India)


1. Dr. Saurabh K Verma

Formerly Raja Ramanna Fellow and Director Grade Scientist at NGRI, Hyderabad India. Currently mentoring the ground and airborne geophysical investigations relating to groundwater exploration and associated programs such as coastal salinity mapping, studies for smart city development, waste disposal, etc. Area of expertise: Theory and practice of Electrical and Electromagnetic Methods. Also, Associate Editor (Electromagnetics) of the Journal 'Near Surface Geophyics' (EAGE).


2. Dr. Jainendra K. Rai is basically a geophysicist but has extensively worked in hydrogeophysics. He handled various projects of multi-disciplinary both National and International. Has served in various managerial posts and looking after the groundwater division of WAPCOS Ltd.

Urban Geophysics, Smart City Development, Waste Disposal, Coastal Salinity, AEM for Aquifer Mapping

Rapid urban growth, industrialization and climate variations are emerging as major challenges to sustainable and eco-friendly development. In particular supply of good quality drinking water and unpolluted groundwater for agriculture, managed artificial recharge assume great significance. Similarly, rising sea levels due to global warming are causing severe stress in coastal regions due incursion of saline water. To find sustainable solutions to these problems, ground and airborne geophysical investigations are being increasingly employed in different parts of the world. In addition, there are many other problems relating to rapid urbanization like: Site evaluation to construct Metro, underground facilities like parking, storage, ring roads, bridges and flyovers, locating sites for waste dump/disposal, pharmaceutical plants, etc. All these problems necessitate geophysical, geological and borehole studies at local or regional scale depending on the problem. Contributions dealing with various geological and geophysical aspects of the abovementioned problems are invited in this symposium.