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engineering, statistics, and rock physics. It uses geophysics to provide quantitative information about hydrogeological parameters, using minimally invasive methods. Hydrogeophysics differs from geophysics in its specific uses and methods. Although geophysical knowledge and methods have existed and grown over the last half century for applications in mining and petroleum industries, hydrogeological study sites have different subsurface conditions than those industries. Thus, the geophysical methods for mapping subsurface properties combine with
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subsurface conditions. The institute brought together geophysicists working in hydrogeological characterization with hydrogeologists interested in using geophysical methods and data for characterization. This group, plus other international researchers, discussed the possibilities and challenges of using geophysical methods for investigating hydrogeological parameters.
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These parameters are then used to investigate matters including searching for underground water resources, aquifer control or contamination from sea water or industrial sources, and storing harmful substances underground. Having a good measurement of these hydrogeological parameters helps to better
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A Hydrogeophysics
Advanced Study Institute was held at the Trest Castle in the Czech Republic in July 2002 and funded by NATO when they acknowledged the necessity for fully developed, minimally invasive procedures for investigating and monitoring hydrogeological processes and parameters in shallow
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They determined the main obstacles of hydrogeophysics are gaps in the knowledge and understanding of the correlation between hydrogeological parameters and geophysical characteristics, and difficulty in being able to integrate those different sets of information. One of the biggest challenges is
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The methods and knowledge of geophysics had been developed for mining and petroleum industries, which involve consolidated subsurface environments with high pressure and temperature. Since the subsurface environments in hydrogeological studies are less consolidated and have low temperature and
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The field of hydrogeophysics developed out of a need to use minimally invasive methods for determining and studying hydrogeological parameters and processes. Determination of hydrogeological parameters is important for finding water resources, which is a growing need, and learning about water
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to determine parameters (characteristics; measurements of limitations or boundaries) and monitor processes for hydrological studies of matters such as water resources, contamination, and ecological studies. The field uses knowledge and researchers from geology, hydrology, physics, geophysics,
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Traditional hydrogeological methods for characterizing the subsurface usually involved drilling and taking soil samples from the site, which can disturb the study site, cost too much time or money, or expose researchers and people to harmful chemicals and contaminants. They also only provide
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using an organized, methodical, and efficient way to combine geophysical and hydrogeological data sets that measure different parameters over different spatial scales. This is the largest obstacle because the foundation of hydrogeophysics is integrating hydrogeology with geophysics.
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localized information, rather than the necessary field-scale information. Using geophysical methods and digital technology allows hydrogeologists to more quickly study hydrological characteristics on a larger scale with a lower cost and less invasive techniques.
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There are many different methods for determining subsurface properties and features that can be done from different locations/ proximities to the study sites:
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pressure, combining geophysics with hydrogeology was necessary to develop proper geophysical methods that work for hydrological purposes.
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Gaining knowledge of an aquifer's hydraulic properties- transimissivity (rate at which groundwater flows through aquifer horizontally),
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Nwakwoala, H.O.; Udom, G.J. (December 2008). "Hydrogeophysics: An
Overview of General Concepts, Applications and Future Perspectives".
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contamination, which has become relevant with the growing use of potentially hazardous chemicals.
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Determining fractured rock characteristics- faults/fissures and fluid circulation characteristics
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understand water contamination transport and develop more sustainable water resources.
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92:(surface)- mapping top of bedrock, boundaries of faults and fracture zones, and
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77:(airborne)- mapping bedrock, water interfaces, and water quality assessment
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101:(surface)- mapping stratigraphy and water table; monitoring water content
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to use proper, accurate methods to map shallow hydrological study sites.
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Geophysics helps to learn about many hydrogeological matters such as:
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71:(surface, airborne) - measuring the resistivity of the subsurface
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240:"Study institute assesses the state of hydrogeophysics"
22:is a cross-disciplinary area of research that uses
167:Monitoring dynamic processes- seepage through the
128:(laboratory)- estimation of hydraulic conductivity
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83:(surface)- mapping top of bedrock, faults, and
122:(laboratory)- measuring hydraulic conductivity
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244:Eos, Transactions American Geophysical Union
16:Cross-discipline of geophysics and hydrology
238:Hubbard, S.; Rubin, Y. (17 December 2002).
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213:Rubin, Yoram; Hubbard, Susan S. (2005).
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134:(laboratory)- measuring water content
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116:(wellbore)- monitoring water content
69:Electric and electromagnetic methods
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193:"Applied Geophysical Research"
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217:. The Netherlands: Springer.
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164:Determining water quality
132:Time-domain reflectometer
99:Ground-penetrating radar
107:(crosshole)- measuring
109:hydraulic conductivity
265:10.1029/2002eo000412
105:Hydraulic tomography
256:2002EOSTr..83..602H
90:Seismic reflection
81:Seismic refraction
284:Scientia Africana
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290:(2): 54–63.
169:vadose zone
120:Permeameter
85:water table
308:Geophysics
302:Categories
179:References
35:Background
24:geophysics
313:Hydrology
159:porosity
151:geometry
252:Bibcode
149:aquifer
60:Methods
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126:Sieves
219:ISBN
197:USGS
260:doi
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