Scenarist Sd Rapidshare Premium. Cover image from McDonald & Harbaugh (1983), which illustrates a computer surrounded by modules and used by MODFLOW. This was said at the time to resemble a '. Yii2 Theme. 'Modular Model' [ ] The USGS throughout the 1970s had developed several hundred models, written in different dialects of FORTRAN. At the time, it was common practice to rewrite a new model to fit the need of a new groundwater scenario. The concept for MODFLOW was originally designed in 1981 to provide a common modular groundwater model, which could be compiled on multiple platforms without major (or any) modification, and can read and write common formats.

Different aspects of the groundwater system would be handled using the modules, similar to the idea of a '. The original name of the code was 'The USGS Modular Three-Dimensional Finite-Difference Ground-Water Flow Model', or informally as 'The Modular Model.' The name MODFLOW was coined several years after the initial code development, which started in 1981. The first version of MODFLOW was published on December 28, 1983, and was coded entirely in. The source code for this version is listed in USGS Open File Report 83-875 referred to above. MODFLOW-88 [ ] This version of MODFLOW was rewritten in, and was originally released on July 24, 1987. The current version of is 2.6, released on September 20, 1996.

MODPATH, was initially developed in 1989 to post-process the MODFLOW-88 data to determine three-dimensional of particles. This innovation has been indispensable for the fields of. It is still used as a post-processor in recent versions of MODFLOW.

Bin Tere Sanam Downloadming. A separate program, MODFLOWP, was developed in 1992 to estimate various parameters used in MODFLOW. This program was eventually built into MODFLOW-2000. MODFLOW-96 [ ] MODFLOW-96 (version 3.0) was originally released on December 3, 1996, and is a cleaned-up and revised continuation of MODFLOW-88.

There are three final releases of MODFLOW-96: • (version 3.3, May 2, 2000) • (version 3.3h, July 10, 2000), with HYDMOD package • (version 3.2, Oct 9, 1997), MODFLOW-96 with parameter-estimation Several graphical interfaces were first developed using the MODFLOW-96 code. MODFLOW-2000 [ ] MODFLOW-2000 (version 1.0; version numbering was reset) was released on July 20, 2000, which merged MODFLOWP and HYDMOD codes into the main program. Many new packages and enhancements were also included, including new solvers, stream and saturated flow packages. The internal design concepts also changed from previous versions, such that packages, processes and modules are distinct. This version was coded in a mixture of FORTRAN 77,, and. MODFLOW-2000 can also be compiled for, which can allow multiple to be used to increase model complexity and/or reduce simulation time. The final version of (or MF2K) is version 1.19.01, released on March 25, 2010.

There are four related or codes based on MODFLOW-2000: • (version 1.1.4, May 31, 2011, branched from mf2k 1.17.2), with groundwater management capability using optimization • (version 1.00, May 19, 2006, based on mf2k 1.15.03), with Farm Process • (version 1.9.8, October 28, 2008, based on MF2K 1.17.02), groundwater flow and solute-transport model • (version 4.00.05, October 19, 2012), variable-density flow and transport processes • (version 1.01, July 5, 2006), variably saturated flow MODFLOW-2005 [ ] This is the current version of MODFLOW. It is written primarily in Fortran 90 and C. The current version of is version 1.12.00, released on February 3, 2017. • Due to licensing restrictions, the USGS is no longer able to publicly distribute the Algebraic Multi-Grid Graphical user interfaces [ ] There are several graphical interfaces to MODFLOW, which often include the compiled MODFLOW code with modifications. These programs aid the input of data for creating MODFLOW models. Non-commercial interfaces [ ] Non-commercial MODFLOW versions are free, however, their licensing usually limit the use to non-profit educational or research purposes. • is a grid-independent graphical user interface from the USGS for MODFLOW-2005, MODPATH, and PHAST.