Gary S. Johnson, Ph.D., P.E


Associate Professor of Geological Sciences

Idaho Water Resources Research Institute Asst. Director

1776 Science Center Drive, Suite 306

Idaho Falls, ID 83402

(208) 282-7985

Welcome to my University of Idaho web page!

I am an Associate Professor of Hydrology in the Geological Sciences Dept. with a background and interests in regional scale hydrology and hydrogeology. Specifically, I am most interested in applied research dealing with water quantity or water supply issues. Surface and ground water interactions has been a keen interest of mine for several years. My work has focused on understanding the effects of aquifer water use or recharge on interconnected surface water bodies in several basins. I am also pursuing applied research in energy and water interconnections and regional scale modeling of river-aquifer systems with applications to water management.

River Seeps

My location in Idaho Falls (a mere 500 miles from the main campus) puts me in the heart of some of the significant water management issues in Idaho and the region. This location provides me with an opportunity to engage in research with direct and relatively immediate application to today's and tomorrow's challenges. This combination of applied interests in regional water problems and my location has resulted in a strong relationship with the Idaho Water Resources Research Institute (IWRRI).I presently serve as Assistant Director of IWRRI and work closely with the four IWRRI staff in Idaho Falls. I am also adjunct faculty in the University of Idaho Water Resources, Environmental Science, and Biological and Agricultural Engineering programs.

Recent Class Offerings

The University of Idaho offers both a MS Hydrology degree and a PhD Geology with specialization in hydrogeology in Idaho Falls. I teach supporting classes live in Idaho Falls and often video link these classes to the main campus in Moscow. Recent classes I have taught include:

Hydr 501/WR 501 - Water Resources or Hydrology Seminar

Hydr 409/509 - Quantitative Hydrogeology

Hydr 468/568 - Aquifer Test Design and Analysis

Hydr 576 - Ground Water Modeling (jointly w/ J. Fairley)

Hydr 504 - Water and Energy Interconnections

Hydr 414/514 - Surface and Ground Water Interactions

Handline_Howe Spokane River