Ph.D., Hydrology, Massachusetts Institute of Technology, 2005
Much of the research in my group focuses on groundwater-surface water exchange in dynamic coastal systems. This includes quantification of the flux of fresh and saline groundwater and associated chemicals into nearshore marine systems, characterization of time-dependent physical forcing mechanisms that drive flow and transport, and prediction of the potential effects of changes in climate on coastal aquifer systems. I am also interested in sustainability of water supply, particularly in developing countries, in geostatistical methods for modeling subsurface heterogeneity, and in hydro-economic modeling.
CZO Research Groups
Hydrologic dynamics and geochemical responses within a floodplain aquifer and hyporheic zone during Hurricane Sandy. Sawyer, A.H., L.A. Kaplan, O. Lazareva, and H.A. Michael (2014): Water Resources Research, 50 (6): 4877–4892
Stratigraphic controls on surface water-groundwater exchange and geochemical fluxes across the sediment-water interface of an estuary. Sawyer, A.H., O. Lazareva, K. Kroeger, K. Crespo, T. Stieglitz, C.S. Chan, and H.A. Michael (2014): Limnology & Oceanography, 59(3) 997–1010
Seawater circulation in sediments driven by interactions between seabed topography and fluid density. Konikow, L.F., Akhavan, M., C. Langevin, H.A. Michael, and A.H. Sawyer (2013): Water Resources Research, 49: 1386–1399
Geologic effects on groundwater salinity and discharge into an estuary. Russoniello, C.J., C. Fernandez, J.F. Bratton, D.E. Krantz, J.F. Banaszak, A.S. Andres, L.F. Konikow, and H.A. Michael (2013): Journal of Hydrology, 498:1–12
Dynamic response of surface water-groundwater exchange to currents, tides, and waves in a shallow estuary. Sawyer, A.H., F. Shi, J. Kirby, H.A. Michael (2013): Journal of Geophysical Research – Oceans, 118
Papers and books that explicitly acknowledge a CZO grant are highlighted in PALE ORANGE.
Continuous resistivity profiling and seismic-reflection data collected in April 2010 from Indian River Bay, Delaware. Cross, V.A., J.F. Bratton, H.A. Michael, K.D. Kroeger, A. Green, and E. Bergeron (2014): US Geological Survey Open-File Report 2011-1039
Shallow stratigraphic controls on surface water-groundwater mixing and geochemical fate in the benthic zone of an estuary. Sawyer A.H., Lazareva, O., Crespo, K., and Michael, H. (2012): GSA Annual Meeting, Charlotte, North Carolina, Nov. 4-7
Geologic and hydrologic control of porewater chemistry and submarine groundwater discharge into Indian River Bay, Delaware. Michael, H.A., C. Fernandez, C.J. Russoniello, A.S. Andres, K.D. Kroeger, D.E. Krantz, J.F. Banaszak, A. Musetto, K. Myers, L.F. Konikow and J.F. Bratton. (2011): Goldschmidt 2011 conference, Prague, Czech Republic, August 14-19. p. 1462
Dynamic response of surface water-groundwater exchange to currents, tides, and waves in an estuary
Changes in fluid flux across the sediment-water interface in a shallow estuary due to changes in currents, waves, and tides
26 Aug 2014 - The Critical Zone Observatory Research Experience for Undergraduates and Research Experience for Teachers program participants traveled to...
03 Aug 2012 - A major research effort was underway the last week of July 2012, led by the faculty and students of the Christina River Basin Critical Zone...
01 Mar 2012 - The most widespread contaminant of groundwater is not a microbe, industrial chemical or harmful element such as arsenic, according to University of...
28 Sep 2009 - The University of Delaware, in collaboration with Stroud Water Research Center in Avondale, Pa., has received a $4.3 million grant from the National...