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Martha Scholl

Hydrologist

Contact Info


Short Biography

U.S. Geological Survey, Reston, VA 1995-present

U.S. Geological Survey, Menlo Park, CA 1989-1995

University of Virginia, M.S. Environmental Sciences (Hydrology),  1989

University of Minnesota, Duluth, B.S. Geology, 1985






Scholl, M.A. and Murphy, S.F., 2014, Precipitation isotopes link regional climate patterns to water supply in a tropical mountain forest, eastern Puerto Rico, Water Resources Research 50, 4305-4322, doi: 10.1002/2013WR014413.

Scholl, M.A., Torres-Sanchez, A., and Rosario-Torres, M., 2014, Stable isotope (δ18O and δ2H) data for precipitation, stream water, and groundwater in Puerto Rico: U.S. Geological Survey Open-File Report 2014–1101, 29 p., http://dx.doi.org/10.3133/ofr20141101

Qi, Haiping, Coplen, Tyler B., Tarbox, Lauren, Lorenz, Jennifer M. & Scholl, Martha, 2014, USGS48 Puerto Rico precipitation – a new isotopic reference material for δ2H and δ18O measurements of water, Isotopes in Environmental and Health Studies, DOI: 10.1080/10256016.2014.905555.

Spiegel, J.K., Aemisegger, F., Scholl, M., Wienhold, F.G., Collett Jr., J.L., Lee, T., van Pinxteren, D., Mertes, S., Tilgner, A., Herrmann, H., Werner, R.A., Buchmann, N., and Eugster, W., 2012, Temporal evolution of stable water isotopologues in a hill cap cloud in central Europe, (HCCT-2010), Atmospheric Chemistry and Physics, 12, 11679-11694.

Spiegel, J.K., Aemisegger, F., Scholl, M., Wienhold, F.G., Collett Jr., J.L., Lee, T., van Pinxteren, D., Mertes, S., Tilgner, A., Herrmann, H., Werner, R.A., Buchmann, N., and Eugster, W., 2012, Stable water isotopologue ratios in fog and cloud droplets of liquid clouds are not size-dependent, Atmospheric Chemistry and Physics, 12, 9855-9863. 

Scholl, M.A., Eugster, W. and Burkard, R., 2011, Understanding the role of fog in forest hydrology: Stable isotopes as tools for determining input and partitioning of cloud water in montane forests, Hydrological Processes, 25, 353-366.  http://water.usgs.gov/nrp/proj.bib/Publications/2011/scholl_eugster_etal_2011.pdf

Giambelluca, T.W., DeLay, J.K., Nullet, M.A., Scholl, M.A., and Gingerich, S.B., 2011, Canopy water balance of windward and leeward Hawaiian cloud forests on Haleakala, Maui, Hawaii, Hydrological Processes, 25, 438-447. 

Jaeschke, J.B., Scholl, M.A., Cozzarelli, I.M., Masoner, J., Christenson, S. and Qi, H.  2011, Stable-isotope ratios of hydrogen and oxygen in precipitation at Norman, Oklahoma, 1996-2008, USGS SIR 2011-5262, 22 p.  http://pubs.usgs.gov/sir/2011/5262/.

Scholl, M.A., Eugster, W. and Burkard, R., 2010, Understanding the role of fog in forest hydrology: Stable isotopes as tools for determining input and partitioning of cloud water in montane forests, in Bruijnzeel, L.A., Scatena, F.N., and Hamilton, L.S., Tropical Montane Cloud Forests: Science for Conservation and Management, Cambridge University Press, p. 228-241.

Giambelluca, T.W., DeLay, J.K., Nullet, M.A., Scholl, M.A., and Gingerich, S.B., 2010, Cloud water interception at wet and dry forest sites on Haleakala, Maui, Hawaii, in Bruijnzeel, L.A., Scatena, F.N., and Hamilton, L.S., Tropical Montane Cloud Forests: Science for Conservation and Management, Cambridge University Press.

Scholl, M.A., Shanley, J.B., Zegarra, J.P., and Coplen, T.B., 2009, The stable isotope amount effect: New insights from NEXRAD echo tops, Luquillo Mountains, Puerto Rico, Water Resources Research, 45, W12407, doi:101029/2008WR007515.

http://water.usgs.gov/nrp/proj.bib/Publications/2009/scholl_shanley_etal_2009.pdf

Scholl, M.A., Giambelluca, T.W., Gingerich, S.B., Nullet, M.A. and Loope, L.L., 2007, Cloud water in windward and leeward mountain forests: The stable isotope signature of orographic cloud water, Water Resources Research, 43, W12411, doi:101029/2007WR006011.

http://water.usgs.gov/nrp/proj.bib/Publications/2007/scholl_giambelluca_etal_2007.pdf

Scholl, M.A., Cozzarelli, I.M., Christenson, S.C., 2006, Recharge processes drive sulfate reduction in an alluvial aquifer contaminated with landfill leachate, J. Contaminant Hydrology, 86, 239-261.

Scholl, M.A., Christenson, S.C., Cozzarelli, I.C., Ferree, D.M. and Jaeschke, J., 2005, Recharge processes in an alluvial aquifer riparian zone, Norman Landfill, Norman, Oklahoma, 1998-2000, U.S. Geological Survey Scientific Investigations Report 2004-5238, 60 p. http://pubs.usgs.gov/sir/2004/5238/

Scholl, M.A., Gingerich, S.B., and Tribble, G.A., 2002, The influence of microclimates and fog on stable isotope signatures used in interpretation of regional hydrology: East Maui, Hawaii, J. Hydrology, v. 264, 170-184.

Eganhouse, R.P., Cozzarelli, I.M., Scholl, M.A., and Matthews, L.L., 2001, Natural attenuation of volatile organic compounds (VOCs) in the leachate plume of a municipal landfill: using alkylbenzenes as process probes, Ground Water, v. 39, no. 2.

Cozzarelli, I.M., Suflita, J.M., Ulrich, G.A., Harris, S.H., Scholl, M.A., Schlottmann, J.L., and Christenson, Scott, 2000, Geochemical and microbiological methods for evaluating anaerobic processes in an aquifer contaminated by landfill leachate, Environmental Science & Technology, v. 34, no. 18, p. 4025-4033.

Scholl, M.A., 2000, Effects of heterogeneity in aquifer permeability and biomass on biodegradation rate calculations – results from numerical simulations, Ground Water, v. 38, no. 5, p. 702-712.

Scholl, M.A., Cozzarelli, I.M., Christenson, S.C., Breit, G.N., and Schlottmann, J.L., 1999, Aquifer heterogeneity at the Norman, Oklahoma landfill and its effect on observations of biodegradation processes, in Morganwalp, D.W., and Buxton, H.T., eds., U.S. Geological Survey Toxic Substances Hydrology Program--Proceedings of the Technical Meeting, Charleston, South Carolina, March 8-12, 1999--Volume 3 – Subsurface Contamination from Point Sources: U.S. Geological Survey Water-Resources Investigations Report 99-4018C, p. 557-567. http://toxics.usgs.gov/pubs/wri99-4018/Volume3/

Christenson, S.C., Scholl, M.A., Schlottmann, J.L., and Becker, C.J., 1999, Ground-water and surface-water hydrology of the Norman landfill research site, in U.S. Geological Survey Water-Resources Investigations Report 99-4018C (full citation above), p. 501-507. http://toxics.usgs.gov/pubs/wri99-4018/Volume3/

Cozzarelli I., Suflita, J., Ulrich, G., Harris, S., Scholl, M., Norvell, J. and Jaeschke, J., 1999, Biogeochemical processes in a contaminant plume downgradient from a landfill, Norman, Oklahoma, in U.S. Geological Survey Water-Resources Investigations Report 99-4018C (full citation above), p. 521-530. http://toxics.usgs.gov/pubs/wri99-4018/Volume3/

Eganhouse, R.P., Matthews, L.L., Cozzarelli, I.M., and Scholl, M.A., 1999, Evidence for natural attenuation of volatile organic compounds in the leachate plume of the Norman, Oklahoma landfill, in U.S. Geological Survey Water-Resources Investigations Report 99-4018C (full citation above), p. 531-540. http://toxics.usgs.gov/pubs/wri99-4018/Volume3/

Schlottmann, J.L., Scholl, M.A., and Cozzarelli, I.M., 1999, Identifying ground-water and evaporated surface water interactions near a landfill using deuterium, 18oxygen, and chloride, Norman, Oklahoma, in U.S. Geological Survey Water-Resources Investigations Report 99-4018C (full citation above), p. 509-520. http://toxics.usgs.gov/pubs/wri99-4018/Volume3/

Scholl, M. A. and Christenson, Scott, 1998, Spatial variation in hydraulic conductivity determined by slug tests in the Canadian River alluvium near the Norman Landfill, Norman, Oklahoma, U.S. Geological Survey Water-Resources Investigations Report 97-4292, 28 p. http://pubs.usgs.gov/wri/wri974292/

Ingebritsen, S.E., Scholl, M.A., and Sherrod, D.R., 1996, Reply to comment on ‘Heat flow from four new research drill holes in the Western Cascades, Oregon’, by D.D. Blackwell and G.R. Priest, Geothermics, v. 25, no. 6, p. 715-724.

Scholl, M.A., Ingebritsen, S.E., Janik, C.J., and Kauahikaua, J.P., 1996, Use of precipitation and groundwater isotopes to interpret regional hydrology on a tropical volcanic island: Kilauea volcano area, Hawaii, Water Resources Research, 32 (12), 3525-3537.   http://www.agu.org/journals/wr/v032/i012/95WR02837/95WR02837.pdf

Scholl, M.A., Ingebritsen, S.E., Janik, C.J., and Kauahikaua, J.P., 1995, An isotope hydrology study of the Kilauea volcano area, Hawaii, U.S. Geological Survey Water Resources Investigations Report 95-4213, 44 p. http://pubs.er.usgs.gov/usgspubs/wri/wri954213

Scholl, M.A. and Ingebritsen, S.E., 1995, Total and non-seasalt sulfate and chloride measured in bulk precipitation samples from the Kilauea Volcano area, Hawaii, U.S. Geological Survey Water Resources Investigations Report 95-4001, 32 p. http://pubs.er.usgs.gov/usgspubs/wri/wri954001

Janik, C.J., Nathenson, M., and Scholl, M.A., 1994, Chemistry of spring and well waters on Kilauea Volcano, Hawaii and vicinity, U.S. Geological Survey Open File Report 94-586, 166 p.

Ingebritsen, S.E. and Scholl, M.A., 1993, Annotated bibliography - Hydrogeology of Kilauea Volcano, Hawaii, U.S. Geological Survey Open File Report 93-551-D, 30 pp.

Scholl, M.A., Janik, C.J., Ingebritsen, S.E., Kauahikaua, J.P., and Trusdell, F.A., 1993, Preliminary results from an isotope hydrology study of the Kilauea Volcano area, Hawaii, Geothermal Resources Council Transactions, v. 17, p. 187-194.

Ingebritsen, S.E., Scholl, M.A., and Sherrod, D.R., 1993, Heat flow from four new research drill holes in the Western Cascades, Oregon, Geothermics, v. 22, no. 3, p. 151-163.

Ingebritsen, S.E. and Scholl, M.A., 1993, The hydrogeology of Kilauea Volcano, Geothermics, v. 22, no. 4, p. 255-270.

Scholl, M.A., Ingebritsen, S.E. and Essaid, H.I., 1993, Comment on 'Consequences of phase separation on the distribution of hydrothermal fluids at ASHES vent field, Axial Volcano, Juan de Fuca Ridge' by Christopher G. Fox, J. Geophysical Research, v. 98, no. B2, p. 1813-1815.

Scholl, M.A. and Harvey, R.W., 1992, Laboratory investigations on the role of sediment surface and groundwater chemistry in transport of bacteria through a contaminated sandy aquifer, Environmental Science & Technology, v. 26, no. 7, p. 1410-1417.

Harvey, R.W., Garabedian, S.P., Smith, R.L., Barber, L.B., Metge, D.W., and Scholl, M.A., 1991, The role of physical and chemical heterogeneity in the interpretation of small-scale tracer tests involving microorganisms, in Mallard, G.E. and Aronson, D.A., eds., U.S. Geological Survey Toxic Substances Hydrology Program--Proceedings of the Technical Meeting, Monterey, California, March 11-15, 1991: U.S. Geological Survey Water Resources Investigation Report 91-4034, p. 148-151.

Scholl, M.A. and Harvey, R.W., 1991, Laboratory studies of bacterial sorption to aquifer sediments from the Cape Cod Toxic-Substances Hydrology research site, in Mallard, G.E. and Aronson, D.A., eds., U.S. Geological Survey Toxic Substances Hydrology Program--Proceedings of the Technical Meeting, Monterey, California, March 11-15, 1991: U.S. Geological Survey Water Resources Investigation Report 91-4034, p. 152-154.

Scholl, M.A., Mills, A.L., Herman, J.S. and Hornberger, G.H., 1990, The influence of mineralogy and solution chemistry on the attachment of bacteria to representative aquifer materials, J. Contaminant Hydrology, v. 6, p. 321-336.

McIntyre, B.M., Scholl, M.A. and Sigmon, J.T., 1990, A quantitative description of a deciduous forest canopy using a photographic technique, Forest Sci., v. 36, no. 2, p. 381-393.

 

 

 

 

 

 

 

 

 

 

 

 




                           

My Science Topics


Science Topic
Subtopic
Hydrologic Processesground-water flow
Hydrologic Processeshydrology
Hydrologic Processeswater cycle
Atmosphere and Climateatmospheric deposition
Atmosphere and Climateprecipitation
Ecology and Environmentforests
Environmental Issueswater quality
Techniques and Methodsisotopic analysis



My USGS Science Strategy Areas

Understanding Ecosystems & Predicting Ecosystems Change

Climate Variability & Change

A Water Census of the United States

Hydrology of Mountain Forests

Image of Current Focus for Hydrology of Mountain Forests

Forested mountain watersheds provide the water supply for many populations around the world.  Rainfall patterns may change and cloud base altitude may rise in response to warming temperatures, shifts in large-scale climate patterns, and regional deforestation.  Deforestation may reduce stream baseflow in cloud forests, and can affect the reliability and quality of the water supply, but the effects of climate and land use change on the hydrologic budget of forested mountain watersheds are not well understood.  Stable isotopes are a natural tracer for precipitation, and my research is focused on developing stable isotope techniques to trace precipitation from different climate patterns through the hydrologic cycle.


Contact Information

Martha Scholl
12201 Sunrise Valley Dr
Reston, VA 20192-0002
mascholl@usgs.gov
703-648-5890
703-648-5274 - Fax
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