Overview: The AnnAGNPS PL model is a batch-process, continuous-simulation, pollutant loading (PL) computer model written in standard ANSI Fortran 95. It is being developed using Compaq Digital Visual Fortran 95 v6.6, and Lahey/Fujitsu Fortran 95 v5.6; and is expected to run on any PC's (386 or higher) under Windows 98, Windows NT, and Windows XP. Since Fortran 95 has a built in memory manager, the former DOS 640K limitation is no longer a concern. In fact, Fortran 95's memory manager will utilize available hard disk space for memory if necessary (virtual memory). The code utilizes Fortran 95's dynamic allocation capability; thus the actual memory requirements are dependent upon the size of the job mostly upon the number of cells. A practical minimum memory limit would be 32Mb. The PL's predicted are: (1) water; (2) sediment by particle size class & source of erosion; and (3) chemicals-nitrogen, phosphorus, organic carbon, & pesticides. PL's are generated from land areas (cells) and routed through stream systems on a daily basis. Special land use components such as feedlots, gullies, field ponds, and point sources are included.

= Current Feature = Under Development = Future Feature