Christian Langevin (Former Employee)
Science and Products
Filter Total Items: 71
MODFLOW-2000, the U.S. Geological Survey Modular Ground-Water Model--Documentation of the SEAWAT-2000 Version with the Variable-Density Flow Process (VDF) and the Integrated MT3DMS Transport Process (IMT) MODFLOW-2000, the U.S. Geological Survey Modular Ground-Water Model--Documentation of the SEAWAT-2000 Version with the Variable-Density Flow Process (VDF) and the Integrated MT3DMS Transport Process (IMT)
SEAWAT-2000 is the latest release of the SEAWAT computer program for simulation of three-dimensional, variable-density, transient ground-water flow in porous media. SEAWAT-2000 was designed by combining a modified version of MODFLOW-2000 and MT3DMS into a single computer program. The code was developed using the MODFLOW-2000 concept of a process, which is defined as ?part of the code...
Authors
Christian D. Langevin, W. Barclay Shoemaker, Weixing Guo
User's guide to SEAWAT; a computer program for simulation of three-dimensional variable-density ground-water flow User's guide to SEAWAT; a computer program for simulation of three-dimensional variable-density ground-water flow
This report documents a computer program (SEAWAT) that simulates variable-density, transient, ground-water flow in three dimensions. The source code for SEAWAT was developed by combining MODFLOW and MT3DMS into a single program that solves the coupled flow and solute-transport equations. The SEAWAT code follows a modular structure, and thus, new capabilities can be added with only minor
Authors
Weixing Guo, C.D. Langevin
User's guide to SEAWAT; a computer program for simulation of three-dimensional variable-density ground-water flow User's guide to SEAWAT; a computer program for simulation of three-dimensional variable-density ground-water flow
This report has been superceded by TWRI Book 6, Chapter A7
Authors
Weixing Guo, C.D. Langevin
Simulation of ground-water discharge to Biscayne Bay, southeastern Florida Simulation of ground-water discharge to Biscayne Bay, southeastern Florida
As part of the Place-Based Studies Program, the U.S. Geological Survey initiated a project in 1996, in cooperation with the U.S. Army Corps of Engineers, to quantify the rates and patterns of submarine ground-water discharge to Biscayne Bay. Project objectives were achieved through field investigations at three sites (Coconut Grove, Deering Estate, and Mowry Canal) along the coastline of...
Authors
Christian D. Langevin
Post audit of a numerical prediction of wellfield drawdown in a semiconfined aquifer system Post audit of a numerical prediction of wellfield drawdown in a semiconfined aquifer system
A numerical ground water flow model was created in 1978 and revised in 1981 to predict the drawdown effects of a proposed municipal wellfield permitted to withdraw 30 million gallons per day (mgd; 1.1 × 105 m3/day) of water from the semiconfined Floridan Aquifer system. The predictions are based on the assumption that water levels in the semiconfined Floridan Aquifer reach a long-term...
Authors
M. Stewart, C. Langevin
Science and Products
Filter Total Items: 71
MODFLOW-2000, the U.S. Geological Survey Modular Ground-Water Model--Documentation of the SEAWAT-2000 Version with the Variable-Density Flow Process (VDF) and the Integrated MT3DMS Transport Process (IMT) MODFLOW-2000, the U.S. Geological Survey Modular Ground-Water Model--Documentation of the SEAWAT-2000 Version with the Variable-Density Flow Process (VDF) and the Integrated MT3DMS Transport Process (IMT)
SEAWAT-2000 is the latest release of the SEAWAT computer program for simulation of three-dimensional, variable-density, transient ground-water flow in porous media. SEAWAT-2000 was designed by combining a modified version of MODFLOW-2000 and MT3DMS into a single computer program. The code was developed using the MODFLOW-2000 concept of a process, which is defined as ?part of the code...
Authors
Christian D. Langevin, W. Barclay Shoemaker, Weixing Guo
User's guide to SEAWAT; a computer program for simulation of three-dimensional variable-density ground-water flow User's guide to SEAWAT; a computer program for simulation of three-dimensional variable-density ground-water flow
This report documents a computer program (SEAWAT) that simulates variable-density, transient, ground-water flow in three dimensions. The source code for SEAWAT was developed by combining MODFLOW and MT3DMS into a single program that solves the coupled flow and solute-transport equations. The SEAWAT code follows a modular structure, and thus, new capabilities can be added with only minor
Authors
Weixing Guo, C.D. Langevin
User's guide to SEAWAT; a computer program for simulation of three-dimensional variable-density ground-water flow User's guide to SEAWAT; a computer program for simulation of three-dimensional variable-density ground-water flow
This report has been superceded by TWRI Book 6, Chapter A7
Authors
Weixing Guo, C.D. Langevin
Simulation of ground-water discharge to Biscayne Bay, southeastern Florida Simulation of ground-water discharge to Biscayne Bay, southeastern Florida
As part of the Place-Based Studies Program, the U.S. Geological Survey initiated a project in 1996, in cooperation with the U.S. Army Corps of Engineers, to quantify the rates and patterns of submarine ground-water discharge to Biscayne Bay. Project objectives were achieved through field investigations at three sites (Coconut Grove, Deering Estate, and Mowry Canal) along the coastline of...
Authors
Christian D. Langevin
Post audit of a numerical prediction of wellfield drawdown in a semiconfined aquifer system Post audit of a numerical prediction of wellfield drawdown in a semiconfined aquifer system
A numerical ground water flow model was created in 1978 and revised in 1981 to predict the drawdown effects of a proposed municipal wellfield permitted to withdraw 30 million gallons per day (mgd; 1.1 × 105 m3/day) of water from the semiconfined Floridan Aquifer system. The predictions are based on the assumption that water levels in the semiconfined Floridan Aquifer reach a long-term...
Authors
M. Stewart, C. Langevin