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New & Noteworthy

 Estimated Water Use in the U.S. in 2005: Summary | Full Report | Data

 Fact Sheet: Effects of Climate Variability and Change on Groundwater Resources of the U.S.

 National Framework for Groundwater Monitoring

 ModelMuse: Graphical User Interface for MODFLOW-2005 and PHAST (TM 6-A29)

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USGS Water Science Centers are located in each state.

CFP: Publications and Articles

Ordered by Most Recent

Kuniansky, E.L., Halford, K.J., and Shoemaker, W.B., 2008, Permeater data verify new turbulence process for MODFLOW, Ground Water Vol. 46, No. 5, 768-771 pp.

Shoemaker, W. B., K. J. Cunningham, E. L. Kuniansky, and J. Dixon 2008, Effects of turbulence on hydraulic heads and parameter sensitivities in preferential groundwater flow layers, Water Resour. Res., 44, W03501, doi:10.1029/2007WR006601.

Hill, M.E., Martin, Angel, Stewart, M.T., 2008, Performance Evaluation of the Modflow-2005 Conduit Flow Process Applied to a Karst Aquifer Underlying West-Central Florida, in E. L. Kuniansky, editor, U.S. Geological Survey Karst Interest Group Proceedings, Bowling Green, Kentucky, May 27-29, 2008: U.S. Geological Survey Scientific Investigations Report 2008-5023, pp.93-98. http://pubs.usgs.gov/sir/2008/5023/37hill.htm

Shoemaker, W.B. and Kuniansky, E.L., 2008, Effects of Turbulence on Hydraulic Heads and Parameter Sensitivities in Preferential Ground-Water Flow Layers, in E. L. Kuniansky, editor, U.S. Geological Survey Karst Interest Group Proceedings, Bowling Green, Kentucky, May 27-29, 2008: U.S. Geological Survey Scientific Investigations Report 2008-5023,pp. 89-90. http://pubs.usgs.gov/sir/2008/5023/34shoemaker.htm

Kuniansky, E.L., Halford, K.J., and Shoemaker, W.B., 2008, Simulation of Turbulent Ground-Water Flow with MODFLOW-2005-Overview, in E. L. Kuniansky, editor, U.S. Geological Survey Karst Interest Group Proceedings, Bowling Green, Kentucky, May 27-29, 2008: U.S. Geological Survey Scientific Investigations Report 2008-5023, pp. 87-88. http://pubs.usgs.gov/sir/2008/5023/33kuniansky.htm

Shoemaker, W.B., Kuniansky, E.L., Birk, Steffen, Bauer, Sebastian, and Swain, E.D., 2008, Documentation of a Conduit Flow Process (CFP) for MODFLOW-2005: U.S. Geological Survey Techniques and Methods 6-A24, 50 p. http://pubs.usgs.gov/tm/tm6a24/

Shoemaker, W.B. and Kuniansky, E.L., 2007, Simulating Laminar and Turbulent Groundwater Flow in Fractured or Carbonate Aquifers: GSA abstract http://gsa.confex.com/gsa/2007AM/finalprogram/abstract_124784.htm

CAVE Publications Precursor to CFP Mode 1

Bauer, Sebastian, Liedl, Rudolf, and Sauter, Martin, 2003, Modeling of karst aquifer genesis: Influence of exchange flow: Water Resources Research v. 39, no. 10, 1285, p.

Liedl, R., Sauter, M., Hückinghaus D., Clemens T., Teutsch, G. 2003: Simulation of the development of karst aquifers using a coupled continuum pipe flow model. Water Resour. Res., 39 (1), 1057, doi:10.1029/2001WR001206.

Bauer, Sebastian, 2002, Simulation of the genesis of karst aquifers in carbonate rocks. Vol. 62 of Tübinger Geowissenschaftliche Arbeiten: Tübingen, Germany, Reihe C. Institut und Museum für Geologie und Paläontologie der Universität Tübingen.

Birk, Steffen, 2002, Characterization of karst systems by simulating aquifer genesis and spring responses: Model development and application to gypsum karst: Vol. 60 of Tübinger Geowissenschaftliche Arbeiten: Tübingen , Germany, Reihe C. Institut und Museum für Geologie und Paläontologie der Universität Tübingen. Also available at: http://w210.ub.uni-tuebingen.de/dbt/volltexte/2002/558/

Bauer, Sebastian, Liedl, Rudolf, and Sauter, Martin, 2000, Modelling of karst development considering conduit-matrix exchange flow, in Stauffer, F., Kinzelbach, W., Kovar, K., and Hoehn, E., eds., Calibration and reliability in groundwater modelling: Coping with uncertainty-Proceedings of the ModelCARE'99 Conference: International Association of Hydrological Sciences Publication 265, p. 10-15.

Clemens, Torsten, 1998, Simulation der Entwicklung von Karstaquiferen: Ph.D. dissertation submitted to Eberhard-Karls Universitat Tübingen, Germany.

Hückinghaus, Dirk, 1998, Simulation der Aquifergenese und des Wärmetransports in Karstaquiferen: Vol. 42 of Tübinger Geowissenschaftliche Arbeiten: Tübingen, Germany, Reihe C. Institut und Museum für Geologie und Paläontologie der Universität Tübingen. Also available at: http://w210.ub.uni-tuebingen.de/dbt/volltexte/2005/2030/

Teutsch, G., and Sauter, Martin, 1998, Distributed parameter modelling approaches in karst hydrological investigations. Bulletin d'Hydrogeologie, v. 16, p. 99-110.

Clemens, Torsten, Hückinghaus, Dirk, Sauter, Martin, Liedl, Rudolf, and Teutsch, Georg, 1996, A combined continuum and discrete network reactive transport model for the simulation of karst development, in Calibration and reliability in groundwater modelling-Proceedings of the ModelCARE 96 Conference, Golden, Colorado, September 1996, International Association of Hydrological Sciences Publication 237, p. 309-318.

Sauter, Martin, 1993, Double porosity models in karstified limestone aquifers: Field validation and data provision, in Hydrogeological Process in Karst Terranes, International Association of Hydrological Sciences, v. 207, p. 261-279.

Teutsch, Georg, 1993, An extended double-porosity concept as a practical modeling approach for a karstified terraine, in Gultekin, Johnson, and Back, eds., Hydrogeological Processes in Karst Terraines, Proceedings of the Antalya Symposium and Field Seminar, October 1990: International Association of Hydrological Sciences, v. 207, p. 281-292.

Release History

First official release is version 1.0 released for publication April 14, 2008.

Source Code and Documentation

Points of Contact and Support

Support is provided for correcting bugs and clarification of how the code is intended to work. Only limited assistance can be provided for applying CFP to specific problems by contacting the points of contact listed below

User Email List

If you want to be alerted to updates in the CFP, please contact W. Barclay Shoemaker (bshoemak@usgs.gov) as he is maintaining the user email list.

The Conduit Flow Process for MODFLOW-2005 was developed with the support of the USGS Groundwater Resources Program.

USGS Software User Rights Notice