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2018 Birdsall-Dreiss Distinguished Lecturer

                           David Boutt                                aquifer systems respond to hydroclimatic and land-use changes.
                                                                      Physical and geochemical information is used to understand how
                                  is an associate professor in the    different subsurface environments and surface-water–groundwa-
                                  Department of Geosciences at the    ter interactions impact the sensitivity of groundwater storage to
                                  University of Massachusetts–        climate variability. Analysis of groundwater levels and stream-
                                  Amherst. He received B.S. and M.S.  flows reveals a heterogeneous response of aquifers to climate
                                  degrees from the Department of      variability. This highlights the role of subsurface hydrologeologic
                                  Geological Sciences at Michigan     heterogeneity to aquifer response. Long-term rise in water levels,
                                  State University in 1997 and 1999.  observed from analysis of water-level trends, is associated with an
                                  His M.S. work focused on under-     increase in precipitation and land-use change, which has ulti-
                                  standing the impacts of land-use    mately led to an increase in nuisance flooding. Integrating isoto-
                                  change on groundwater quantity and  pic tracers into this work has improved our understanding of the
quality at the watershed scale. He earned his Ph.D. from the New      role of extreme precipitation events on groundwater storage.
Mexico Institute of Mining and Technology in 2004 and held a          Isotope data also shed light on the fundamental importance of
postdoctoral position at Sandia National Laboratories before join-    groundwater discharge to streamflow. This work highlights the
ing the faculty at Amherst in 2005.                                   importance of understanding groundwater processes in generating
  During his Ph.D. research, Boutt was awarded an American            in streamflow, with implications for water supply, baseflow gen-
Geophysical Union Horton Research Grant. His dissertation work        eration, climate refugia, and assessing flood risk in a changing
focused on the coupling of fluid flow and deformation in frac-        world.
tured and faulted media through the development of discretely
coupled fluid-solid models.                                           Do You Know Where Your Catchment Ends? The Role
  Boutt’s current research focuses on understanding the role of       of Inter-Basin Groundwater Flow and Hydrogeologic
groundwater in catchment-scale hydrologic processes. He main-         Transience in Hydrologic Processes
tains an active and dynamic research laboratory with dedicated
undergraduate and Ph.D. students. His research has taken him on         A fundamental concept in the hydrologic analysis of watersheds
board the Japanese Drilling Vessel Chikyu during Integrated           is that the water draining to the outlet of the basin originates
Ocean Drilling Program (IODP) Expedition 319—the first riser          within the basin itself. Groundwater hydrologists have long
drilling operation in IODP history—and to the wilds of the            understood the role and impact of inter-basin groundwater flow,
Atacama desert in Chile. His work includes the origin of lithium-     defined here as the subsurface transfer of water across topo-
rich continental brines in northern Chile and in the Great Basin of   graphic boundaries. This inter-basin transfer of water leaves a
the western United States. Boutt has also contributed extensively     distinct impact on the hydrologic and solute budgets of the catch-
to understanding the hydrogeology of a former cranberry bog that      ments. This talk addresses when and where topographic catch-
is part of the largest freshwater restoration project in New England  ment divides correspond to groundwater divides and how this is
(www.livingobservatory.org). He has served the hydrogeologic          affected by climatic variability and geologic heterogeneity.
and broader geoscience communities on proposal review panels          Examples from a range of climates and geologic environments
and volunteer boards. He is currently an editor for Hydrological      will highlight the relevance of inter-basin flow on hydrologic and
Processes and was previously an associate editor for                  geologic processes. The coupling of hydrologic transience and
Hydrogeology. A list of his publications can be found at https://     changes in groundwater storage is also discussed, as are sugges-
blogs.umass.edu/dboutt/.                                              tions for new approaches to conceptualization of hydrogeologic
  Institutions can schedule a visit by completing the request form    watershed boundaries that take into consideration both geologic
at community.geosociety.org/hydrodivision/birdsall/                   uncertainty and climate variability.
about2018. Boutt will present one lecture on one of the topics
described below. The GSA Hydrogeology Division is particularly        Water and Lithium—The Nexus of Hydrogeosciences and
interested in including liberal arts colleges in the itinerary. The   Green Energy in the Transition from Fossil Fuels
Division pays transportation expenses, and the host institution is
expected to provide local accommodations.                               Earth is warming at an unprecedented pace due to the release of
                                                                      carbon dioxide from the burning of fossil fuels. Development of
Groundwater as a Buffer to Climatic Change: Dynamic                   portable and powerful energy storage mechanisms (such as lith-
Subsurface Storage of Glaciated Landscapes                            ium-ion batteries) is essential to replace our dependence on the
                                                                      high-energy density fossil fuels. Lithium is abundant and plentiful
  The northeastern U.S. is experiencing rapid changes in its          on the planet but is rarely found in high enough concentrations to
hydrology due to intense land-use change, urbanization, and cli-      be of economical use. Economic deposits of lithium are found in
mate change. It also possesses some of the highest density, longest   pegmatites and closed-basin continental brines. The origin of the
term observations of hydrologic variables in the U.S. and the         lithium brines and their distribution worldwide is fundamentally
world. The focus of this presentation is on how small, unconfined     tied to the hydrology and hydrogeology of the host basins. This

www.geosociety.org/gsatoday                                                                                                                11
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