Piper & Stiff Diagrams

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Last updated on Fri 28 Mar 2003 at 07:34 AM

(Some of these programs are old and may not work anymore.)

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• Geostiff is a program and graphical user interface that produce and georeference Stiff diagrams. The user prepares an input file and selects the preferred output parameters. The program is then executed from within the interface and produces ESRI ArcInfo(TM) polygon coverages ready to be displayed and edited in ArcView(TM) GIS. Geostiff is free. New
• GW_Chart
• Ground Water for Windows
• AquaChem
• TRIXEL1.0b, a VBA macros for ternary diagrams with Excel
• RockWare
  • Piper/Stiff: (Piper and Stiff diagram plotting program designed specifically for the Macintosh.)
  • RockWorks V. 7, Statistics
  • HydroChem
• Scientific Software Group
  • TECHBASE
  • PLOTCHEM for Windows
• TRIPLOT Freeware
• The Software directory of the US Office of Surface Mining's Technical Information Processing System (TIPS) has four DOS hydrology programs in tar.gz format (.tgz). There are free utilities for decompacting them or you can use WinZip. The programs include
  • TAAP (Theis Aquifer Analysis Program Version 3.1),
  • STORM (uses the SCS curve number method for determining runoff from small watersheds),
  • HC34 (plots water quality data using either Piper trilinear diagrams or Stiff diagrams), and
  • HC41 (appears to be an update of hc34).