CURRENT CONDITIONS

Current streamflow conditions in Florida.

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MODELING PROGRAM

by Geographic Area of Investigation
by Research Scientist

OPPORTUNITIES

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Alyssa Dausman

U.S. Geological Survey
Florida Water Science Center - Ft. Lauderdale
3110 SW 9th Avenue
Fort Lauderdale, FL 33315

Office: 954.377.5972
Fax: 954.377.5901
Email: adausman@usgs.gov
Curriculum Vitae

RESEARCH TOPICS RELATED TO CURRENT WORK

• Numerically simulating variable-density groundwater flow
• Convection and conduction of heat in groundwater models
• Quantifying model uncertainty and predicative error variance
• Deepwell Injection
• Submarine groundwater discharge
• Saltwater Intrusion

PROJECTS RELATED TO CURRENT WORK

2004-present: Fate and transport of deep-well injectate at the South District Miami-Dade Wastewater Treatment Plant, in cooperation with the Miami-Dade Water and Sewer Department

2000-2004: Numerical simulation of saltwater intrusion in Broward County, Florida, in cooperation with the South Florida Water Management District

2003-2004: Nutrient transport through the Everglades to Florida Bay, in cooperation with South Florida Water Management District

2006-present: Development and support of SEAWAT_Version 4, in cooperation with Dr. Christian Langevin, Dr. Daniel Thorne, Dr. Weixing Guo and the U.S. Geological Survey Office of Ground Water

2006-present: Quantifying model uncertainty and predictive uncertainty in variable-density groundwater models, in cooperation with Dr. John Doherty of Watermark Numerical Computing and Dr. Michael Sukop of Florida International University

2005-present: Simulating temperature and salinity in submarine groundwater discharge, in cooperation with Dr. Michael Sukop of Florida International University

SCIENTIFIC PUBLICATIONS

Dausman, A.M., Easley, D.H., and Stoessell, R.K. (2002) Ground Water Model of the Northeastern Yucatan Peninsula, Mexico. American Water Resources Association: Annual Water Resources Conference., extended abstract.

Dausman, A.M., and Langevin, C.D. (2002) Representing hydrodynamic dispersion in saltwater intrusion models of different temporal scales: American Water Resources Association. Spring Specialty Conference: Coastal Water Resources, extended abstract.

Dausman, A.M., and Langevin, C.D. (2003) Relationship among water levels, canal stage and saltwater intrusion, Southeastern Florida, USA. The Second International Conference on Saltwater Intrusion and Coastal Aquifers. Mérida, Yucatán, México.

Easley, D.H., Gaubert, A., Dausman, A., and Stoessell, R.K. (2003) Modeling of Salinity and Temperature Effects Upon Ground Water in the Surficial Carbonate Aquifer, Yucatan Peninsula, Mexico. The Second International Conference on Saltwater Intrusion and Coastal Aquifers. Mérida, Yucatán, México.

Dausman, Alyssa and Langevin, Christian. (2005) Movement of the saltwater interface in the Surficial Aquifer System in response to hydrologic stresses and water-management practices, Broward County, Florida: USGS Scientific Investigations Report: SIR 2004-5256.

Langevin, C. and Dausman, A. (2005) Numerical simulation of saltwater intrusion in response to sea-level rise: In Proceedings of the Water & Environmental Resources Congress 2005-Impacts of Global Climate Change, Anchorage, Alaska.

Dausman, A.M., Langevin, C.D., Walsh, V., and Sukop, M.C. (2006) Modeling the Potential for Plume Migration from a Deep Well Injection Site. Abstract Book of the 2006 Ground Water Summit. National Ground Water Association.

Dausman, A.M., C.D. Langevin, M.C. Sukop, and V. Walsh (2006), Development and Calibration of a Variable-Density Numerical Model of a Deep-well Injection Site near the Southeastern Florida Coast, Eos Trans. AGU, 87(52), Fall Meet. Suppl., Abstract H33D.

Dausman, A.M., Langevin, C.D., and Sukop, M.C. (2007) Simulation Of submarine groundwater discharge salinity and temperature variations: implications for remote detection. A New Focus on Groundwater-Seawater Interactions. IUGG Redbook, 2007.

Dausman, A.M., Langevin, C.D., Doherty, J., Sukop, M.C., and Walsh, V. (2007) A Unique Approach to Calibrating a Variable-Density Flow and Transport Model. GSA, Vol. 39, No. 6. ISSN 0016-7592.

La Licata, I., Langevin, C.D., Dausman, A.M. (2007) Effect of tidal fluctuations on contaminant transfer to the ocean, in Sanford, W., Langevin, C.D., Polemio, M., and Povinec. P., eds., 2007, A new focus on groundwater-seawater interactions: IAHS Publication 312, Oxfordshire, United Kingdom, p. 334-341.

Langevin, C.D., Thorne, D.T., Jr., Dausman, A.M., Sukop, M.C., and Guo, Weixing (2008) SEAWAT Version 4: A Computer Program for Simulation of Multi-Species Solute and Heat Transport: U.S. Geological Survey Techniques and Methods Book 6, Chapter A22, 39 p.

Dausman, A.M., Doherty, J., Langevin, C.D., and Sukop, M.C. (2008) Quantifying Data Contributions toward Reducing Predictive Uncertainty in a Variable-Density Flow and Solute/Heat Transport Model. Conference paper published in MODFLOW and More: Ground Water and Public Policy.

Dausman, A.M., Langevin, C.D., Sukop, M.C., and Walsh, V. (2008) Saltwater/Freshwater Interface Movement in Response to Deep-Well Injection in a Coastal Aquifer. Conference paper published in the Program and Proceedings of the 20^th Salt Water Intrusion Meeting.

La Licata, I., Langevin, C. D., Dausman, A.M., and Alberti, L. (2008) Tidal Effects on Transient Dispersion of Simulated Contaminant Concentrations in Coastal Aquifers. Conference paper published in the Program and Proceedings of the 20^th Salt Water Intrusion Meeting.

SCIENTIFIC PRESENTATIONS

Groundwater Model of the Fresh-Water/Salt-Water Lens in the Northeastern Yucatan Peninsula. Defense of M.S. Thesis, University of New Orleans. April, 2000. Dausman, A.M.

Groundwater Model of the Fresh-Water/Salt-Water Lens in the Northeastern Yucatan Peninsula. Presented to the U.S. Geological Survey. Miami-Dade, Florida. May, 2000. Dausman, A.M.

Representing Hydrodynamic Dispersion in Saltwater Intrusion Models that Differ in Temporal Resolution. American Water Resources Association, 2002 Spring Specialty Conference: Coastal Water Resources. New Orleans, Louisiana. Dausman, A.M., and Langevin, C.D.

Effects of Water-Level Fluctuations on the Movement of the Saltwater Interface in Palm Beach and Broward Counties. Joint meeting between the USGS and South Florida Water Management District. Palm Beach, Florida. March 1, 2002. Dausman, A.M., Langevin, C.D., and Garces, D.G.

Saltwater Intrusion in Broward County. Presented to Broward County Department of Environmental Protection. Fort Lauderdale, Florida. July, 2002. Dausman, A.M.

Saltwater Intrusion in Broward County. DEP Watershed Monitoring Q Meeting. Fort Lauderdale, Florida. Wed., Sept. 18, 2002. Dausman, A.M.

Groundwater Flow and Transport Modeling: Application to Submarine Groundwater Discharge, Coastal Wetland Hydrology, and Deep Well Injection. Joint USGS/NOAA Meeting. Miami-Dade, Florida. November 13, 2002. Dausman, A.M., and Langevin, C.D.

Issues and Concerns of Saltwater Intrusion in Broward County, Florida. Presented to City of Ft. Lauderdale, City of Hallandale Beach, City of Hollywood, Broward County. Fort Lauderdale, Florida. July, 2003. Dausman, A.M.

Simulating saltwater intrusion in Broward County, Florida. SEAWAT training class. South Florida Water Management District. August 15, 2003. Dausman, A.M.

Saltwater Intrusion in Broward County. Annual Technical Presentations Meeting-SFWMD/USGS Cooperative Program. Palm Beach, Florida. October, 2003. Dausman, A.M., and Langevin, C.D.

Representing Hydrodynamic Dispersion in Saltwater Intrusion Models that Differ in Temporal Resolution. Florida International University. Miami-Dade, Florida. Fall, 2003. Dausman, A.M.

Three-dimensional variable-density modeling using SEAWAT. Florida International University. Miami-Dade, Florida. Fall, 2003. Dausman, A.M.

Water Quality Modeling in the Everglades: Coupling a QW model with TIME/SICS. Florida International University. Miami-Dade, Florida. Spring, 2004. Dausman, A.M.

Effects of parameters changes on Solute Transport Modeling. Florida International University. Miami-Dade, Florida. Fall, 2004. Dausman, A.M.

Saltwater Intrusion in South Eastern Florida. Presented to Miami-Dade County: Water and Sewer Authority and Department of Environmental Protection. Miami-Dade, Florida. August 10, 2004. Dausman, A.M.

Saltwater Intrusion in Broward County. Annual Technical Presentations Meeting-SFWMD/USGS Cooperative Program. Palm Beach, Florida. Wed. October 28, 2004. Dausman, A.M., and Langevin, C.D.

Water levels, canal stage, and saltwater intrusion in Broward County Florida. Presented to the Technical Advisory Committee for Water for Broward County, Florida. Friday, June 10, 2005. Dausman, A.M., and Langevin, C.D.

Conceptual Model for Evaluating Fate and Transport of Deep-Well Injectate at the South District Wastewater Treatment Plant. Presented to Miami-Dade County. July 12, 2005. Dausman, A.M., Langevin, C.D., and Dixon, J.

Water levels, canal stage, and saltwater intrusion in Broward County Florida. Presented to the South Florida Association of Environmental Professionals. Wednesday, August 17, 2005. Dausman, A.M., and Langevin, C.D.

Water level, canal stage, and saltwater intrusion in Broward County, Florida. Presented to conference: Global Climate Change: Implications for South Florida's Future. January 20, 2006. Dausman, A.M., and Langevin C.D.

Modeling the Potential for Plume Migration from a Deep Well Injection Site. Ground Water Summit of the National Ground Water Association. San Antonio, Texas. April, 2006. Dausman, A.M., Langevin, C.D., Walsh, V., and Sukop, M.C.

Fun Model, Fun Lessons, Fun Results. Presented to Florida Department of Environmental Protection's 2006 Wastewater and Underground Injection Control Annual Meeting. May 25, 2006. Dausman, A.M. and Langevin, C.D.

Use of Preliminary Numerical Model to Determine Optimal Monitoring Well Location. Presented to Miami-Dade County. August 1, 2006. Dausman, A.M. and Langevin, C.D.

Calibration of a Deep-Well Injection Model. Presented to SEAWAT Training Course. Fort Lauderdale, Florida. February, 2007. Dausman, A. M., and Langevin, C. D.

Simulation of submarine groundwater discharge salinity and temperature variations: implications for remote detection. A New Focus on Groundwater-Seawater Interactions. Presented to XXIV IUGG General Assembly. Perugia, Italy. July, 2007. Dausman, A.M., Langevin, C.D., and Sukop, M.C.

A Unique Approach to Calibrating a Variable-Density Flow and Transport Model in a Carbonate Aquifer. Presented to the Geological Society of America. October 28, 2007. Dausman, A.M., Langevin, C.D., Doherty, J., Sukop, M.C., and Walsh, V.

Model-Independent parameter estimation: Introduction to using PEST. 2^nd USGS Modeling Conference. Orange Beach, Alabama. February, 2008. Dausman, A.M., Doherty, J., Hunt, R.J., and Fienen, M.

Fun Model, Fun Lessons, Fun Results. The Florida Keys Wastewater Assistance Foundation. Key Largo, Florida. April 24, 2008. Dausman, A.M., Langevin, C.D., Renken, R., Dixon, J., Walsh, V., and Sukop, M.C.

Quantifying Data Contributions toward Reducing Predictive Uncertainty in a Variable-Density Flow and Solute/Heat Transport Model. MODFLOW and More: Ground Water and Public Policy, Golden, Colorado. May, 2008. Dausman, A.M., Doherty, J., Langevin, C.D., and Sukop, M.C.

Fun Model, Fun Lessons, Fun Results. UNESCO Lecture Series. Fort Lauderdale, Florida. June 11, 2008. Dausman, A.M.

Saltwater/Freshwater Interface Movement in Response to Deep-Well Injection in a Coastal Aquifer. 20^th Salt Water Intrusion Meeting, Naples, Florida. June 25, 2008. Dausman, A.M., Langevin, C.D., Sukop, M.C., and Walsh, V.

PEST-FEST, Using PEST in variable-density modeling: SEAWAT_V4. 20^th Salt Water Intrusion Meeting, Naples, Florida. June 26, 2008. Dausman, A.M. and Doherty, J.

Model Sophistication, Parameter Parsimony and Manual Regularization - The Good, the Bad, the Ugly, and the Beauty of Pilot Points. U.S. Geological Survey: National Groundwater Meeting. Denver, Colorado. August, 2008. Dausman, A.M., Langevin, C.D., and Doherty, J.