Jove
Visualize
Contact Us
JoVE
x logofacebook logolinkedin logoyoutube logo
ABOUT JoVE
OverviewLeadershipBlogJoVE Help Center
AUTHORS
Publishing ProcessEditorial BoardScope & PoliciesPeer ReviewFAQSubmit
LIBRARIANS
TestimonialsSubscriptionsAccessResourcesLibrary Advisory BoardFAQ
RESEARCH
JoVE JournalMethods CollectionsJoVE Encyclopedia of ExperimentsArchive
EDUCATION
JoVE CoreJoVE BusinessJoVE Science EducationJoVE Lab ManualFaculty Resource CenterFaculty Site
Terms & Conditions of Use
Privacy Policy
Policies

Related Experiment Videos

Using analytic element models to delineate drinking water source protection areas.

Heather A Raymond1, Michael Bondoc, John McGinnis

  • 1Ohio Environmental Protection Agency, Division of Drinking and Ground Waters, Columbus, OH 43216-1049, USA. heather.raymond@epa.state.oh.us

Ground Water
|January 13, 2006
PubMed
Summary

Related Concept Videos

You might also read

Related Articles

Articles linked to this work by shared authors, journal, and citation graph.

Sort by
Same author

Impact of carboplatin schedule on pCR in a modified KEYNOTE-522 regimen with dose-dense AC for triple negative breast cancer.

The oncologist·2025
Same author

Genomic Identification and Characterization of Saxitoxin Producing Cyanobacteria in Western Lake Erie Harmful Algal Blooms.

Environmental science & technology·2025
Same author

Red blood cells capture and deliver bacterial DNA to drive host responses during polymicrobial sepsis.

The Journal of clinical investigation·2024
Same author

Effectiveness of ozone nanobubble treatments on high biomass cyanobacterial blooms: A mesocosm experiment and field trial.

Journal of environmental management·2024
Same author

Treatment of ventral neurenteric cyst at the cervicothoracic junction with the anterior approach in a pediatric patient: illustrative case.

Journal of neurosurgery. Case lessons·2024
Same author

Red Blood Cell DNA Capture and Delivery Drives Host Responses During Polymicrobial Sepsis.

Research square·2024

Analytic element models (AEMs) like GFLOW and WhAEM provide more accurate drinking water protection areas than simplistic methods. This ensures critical upgradient land is protected and downgradient areas are not over-regulated.

Area of Science:

  • Hydrogeology
  • Environmental Science
  • Water Resource Management

Background:

  • Ohio EPA has utilized analytic element models (AEMs), GFLOW and WhAEM, since 1999 for public water system protection area delineation.
  • Both models now share the GFLOW2001 solution engine, integrate with GIS, and feature user-friendly interfaces, simplifying complex hydrogeologic simulations without requiring a model grid.

Purpose of the Study:

  • To evaluate the effectiveness of AEMs in delineating drinking water protection areas compared to traditional methods.
  • To quantify the differences in protection area size and shape generated by AEMs versus simplistic methods like the volumetric equation and arbitrary fixed radii.

Main Methods:

  • Application of GFLOW and WhAEM to eight sites previously delineated using other methods.
  • Comparative analysis using GIS software and two-tailed paired t-tests to quantify differences between AEM-derived areas and those from simplistic methods.

Related Experiment Videos

  • Assessment of hydrogeologic settings and simulation capabilities of the AEMs.

    • Main Results:

    • AEMs (GFLOW and WhAEM) produced significantly different protection areas (total area and shape) compared to simplistic methods.
    • Use of the volumetric equation instead of AEMs would have resulted in 265 km2 of critical upgradient area left unprotected and 269 km2 of downgradient land overprotected in Ohio.
    • The study demonstrated AEMs' capability to produce capture zones comparable to more widely accepted models.

    Conclusions:

    • AEMs offer a more accurate and refined approach to delineating drinking water protection areas than simplistic volumetric or fixed-radius methods.
    • The findings have significant policy implications for land-use restrictions tied to drinking water protection areas, advocating for the adoption of AEMs for better resource management.