Temporal Scales in Groundwater Science: From Real-time to a Million Years

Presented on Tuesday, March 17, 2015
William Alley, Ph.D., NGWA, Leesburg, VA

Just as hydraulic conductivity spans many orders of magnitude, temporal scales range from real-time to many millennia. One of the great challenges facing groundwater hydrologists is to communicate these highly variable temporal scales of groundwater systems and their responses to human and natural stresses. Several examples are given.

MP3 Presentation Slides

William Alley, Ph.D.
NGWA, Leesburg, VA
Dr. William M. Alley is Director of Science and Technology for the National Ground Water Association. Previously, he served as Chief, Office of Groundwater for the U.S. Geological Survey (USGS) for almost two decades. Dr. Alley has published over 100 scientific publications, and most recently co-authored with his wife, Rosemarie, High and Dry: Meeting the Challenges of the World’s Growing Dependence on Groundwater. Among other awards, Dr. Alley received the USGS Shoemaker Award for Lifetime Achievement in Communication and the Meritorious Presidential Rank Award. He holds a B.S. in Geological Engineering from the Colorado School of Mines, an M.S. in Hydrogeology from Stanford University, and a Ph.D. from the Johns Hopkins University.

Back to: Teaching Moments in Hydrogeology – From the NGWA to the World Via HWB’s “GW2.0” Project
Previous Abstract | Next Abstract >>
NGWA may only post those brown bag sessions, Webinars, event sessions, and like for which we have obtained copyright permission from the presenter. Furthermore, by accessing or downloading any of these items, you agree they are for your own personal use and may not be disseminated by any means to others via any medium. Click here to read NGWA's proprietary legend and disclaimers before proceeding.