subsurface hydrology News

  • Study to Uncover Yellowstone’s Subsurface Mysteries

    A new study providing an unprecedented regional view of the earth’s crust beneath Yellowstone National Park will begin with a helicopter electromagnetic and magnetic (HEM) survey on November 7, 2016. Scientists from the U.S. Geological Survey, University of Wyoming and Aarhus University in Denmark hope to distinguish zones of cold fresh water, hot saline water, steam, clay and unaltered ...

  • Grand Challenges: Request for Information on the Subsurface

    Subsurface reservoirs account for more than 80% of U.S. primary energy, and they offer vast potential for the storage of energy, CO2, and nuclear waste. Despite decades of development, current technologies do not allow full utilization of subsurface energy resources. Major advances in our understanding of the subsurface environment coupled with the identification and development of potential ...


    By US Department of Energy

  • Groundwater movement and contaminant transport in the Earth’s subsurface are the focus of two 2017 Darcy lectures

    Quantifying water movement and contaminant transport in the Earth’s subsurface are the critical issues addressed during presentations offered through the 2017 Henry Darcy Distinguished Lecture Series in Groundwater Science. Earth’s subsurface is part of the “critical zone” — the layer of the planet from the tops of the trees to the bottom of groundwater. This zone is ...

  • ASTM D5777 - 00(2011)e1 standard guide for using the seismic refraction method for subsurface investigation

    This guide summarizes the equipment, field procedures, and interpretation methods used for the determination of the depth, thickness and the seismic velocity of subsurface soil and rock or engineered materials, using the seismic refraction method. Measurement of subsurface conditions by the seismic refraction method requires a seismic energy source, trigger cable (or radio link), geophones, ...


    By ASTM International

  • Henry Darcy Lecture Series in Groundwater Science Offers Two Lectures in 2015

    Dr. Rainer H. Helmig will offer two lectures in the 2015 Henry Darcy Distinguished Lecture Series in Groundwater Science, the National Ground Water and Research Educational Foundation announced today. Helmig is head of the Department of Hydromechanics and Modelling of Hydrosystems at the Institute for Modelling Hydraulic and Environmental Systems, University of Stuttgart, Germany. The first of ...

  • Predicting drainage impacts

    Predicting the drainage impacts on downstream peak events is complex because it involves studying many physical processes at different interdependent scales: the individual field, the drainage network, and the catchment. This group of researchers from France and North Carolina performed an experiment performed in a small subsurface-drained catchment (130 ha), east of Paris, France. The main ...

  • Calculating recharge of groundwater more precisely

    An international team of researchers has demonstrated that key processes in models used for the global assessment of water resources for climate change are currently missing. This could mean climate change impact models are wrong in some parts of the world and cannot yet be used to guide water management. The study, published today [Tuesday 28 February] in the  ...


    By University of Bristol

  • Sophisticated monitoring array to address mystery of uranium plume

    Scientists have been puzzled for years about why uranium contamination in groundwater continues to exceed drinking water standards in an area located at the south end of the Hanford Site. The Department of Energy wants answers to why the uranium persists. Now, an innovative system has been installed for field experiments to better understand this complex site and to support future cleanup ...

  • Impacts of groundwater on local rainfall under a changing climate

    Climate change is expected to bring hotter conditions to many important agricultural regions. This will affect rates of evaporation from the ground and may also have an impact on local rainfall patterns. A recent study suggests that the depth of groundwater may determine the susceptibility of a region to drought following changes in temperature and rainfall. Understanding the transfer of water ...

  • New model simulates US groundwater and surface water interactions

    A new model to simulate groundwater and surface water interactions has been released by the U.S. Geological Survey (USGS). The groundwater and surface water FLOW (GSFLOW) model simultaneously accounts for climatic conditions, runoff across the land surface, subsurface flow and storage, and the connections among terrestrial systems, streams, lakes, wetlands, and ground water. 'GSFLOW can be used ...

  • Dr. Daniel B. Stephens recognized for contributions to NGWA

    Daniel B. Stephens, Ph.D., PG, PHg, founder and principal hydrologist, Daniel B. Stephens & Associates Inc., has received the 2016 Keith E. Anderson Award for outstanding contributions to the National Ground Water Association. “Throughout the last 42 years, Dan has served with energy and dedication, bringing forth his extensive hydrologic and geological experience, as well as ...

  • 2001 Solinst Symposium a Forum for Learning and Sharing

    The 2011 Solinst Symposium proved to be another successful forum for attendees and presenters to discuss and share their ideas and experiences. This year's theme was "Enhanced Monitoring and Remedial Methods for Contaminated Groundwater". The event brought speakers from North American Universities, as well as practitioners from environmental consulting firms and remediation companies. One topic ...


    By Solinst Canada Ltd.

  • Future of water and hydrogeologic investigations focal points of 2018 McEllhiney lectures

    Looking at the disparity between water data and how water sources are developed is one of the topics being offered to selected hosts during the 2018 William A. McEllhiney Distinguished Lecture Series in Water Well Technology. A second presentation deals with how collecting high-density electrical data allowing for new advancements in hydrogeology illustrates that significant changes to ...

  • MOE presents: provincial water monitoring networks

    Dave Rudolph – "Emerging Needs for Temporal and Spatial Data Precision" Dave Rudolph, with the University of Waterloo, started the symposium off with a very thought provoking presentation on the value of data. Dave used case studies to illustrate how different factors impact the quantity and quality of water resources, and how a small change can affect these conditions quickly and ...


    By Solinst Canada Ltd.

  • VIY3-070 GPR: New model of VI3 Ground Penetrating Radar

    A new model of GPR was added to our product line: VIY3-070 GPR. This model has the lowest central frequency in our GPR product range - 70 MHz. Product specification: Antenna frequency: 70 MHz Receiver-to-Transmitter offfset: 1500 mm Analogue-to-Digital Converter range: 18 bit Dynamic range: not less than 135 dB Data acquisition rate: up to 30 ...


    By Transient Technologies LLC

  • Artificial water systems create unintended consequences

    Amidst the semi-arid stretches of Phoenix, a visitor might blink twice at the sight of a sailboat cutting across the horizon. Tempe Town Lake, on the northern edge of Arizona State University, is just one of a multitude of lakes, small ponds, canals and dams combining flood control, water delivery, recreational opportunities and aesthetics, and altering perception of water availability and ...


    By Arizona State University

  • Enviro-Equipment Inc. Awarded Exclusive Contract to Manufacture Patent-Pending CleanInject™ Remediation System

    Environmental monitoring equipment sales, rental and service company Enviro-Equipment Inc. tapped by CleanInject, LLC to make its patent-pending technology available to the environmental consulting industry. Enviro-Equipment Inc. was chosen due to its expertise in remediation system manufacturing and its ...


    By Enviro-Equipment, Inc.

  • Research Experience in Carbon Sequestration 2015 Now Accepting Applications

    Graduate students and early career professionals can gain hands-on field research experience in areas related to carbon capture, utilization and storage (CCUS) by participating in the Research Experience in Carbon Sequestration (RECS) program. The initiative, supported by ...


    By US Department of Energy

  • Seeps important in watershed nitrogen retention

    Globally, the mobilization of nitrogen has increased significantly due to human activities, such as industrial and agricultural development. As a result, over the past decades, eutrophication in coastal ecosystems has increased. Watershed nitrogen retention is an important mechanism to decrease nitrogen loading to downstream water bodies. Generally, in the northeastern U.S., the amount of ...

  • Melting polar ice-caps could bring more droughts to Africa

    Sudden changes in the African monsoon can have large-scale socio-economic effects on fragile economies that depend on moisture for agriculture and basic human needs. New research has predicted that the impact of changes in the ocean's currents as a result of melting polar ice-caps could reduce rainfall during the monsoon in Africa leading to more droughts. Data suggest that droughts as a result ...

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