USDA ARS

Functional Changes in Version 2

Hydro-Climatic Modeling Utilities

Version 2 includes about 200 commands, with over 120 of these directly related to hydro-climatic modeling and analysis. IPW commands are grouped into functional categories as follows:

Integration of Point Processing into IPW

Procedures for processing point data have been fully integrated into Version 2 including the integration of library functions and procedures for developing point utilities. Point processing programs can be used to test and develop algorithms and solutions which numerically represent physical processes. These can then be easily converted to a spatial context, using the same library routines.

Integration of IPW and Physical Modeling Libraries

Integrated IPW and physical modeling libraries developed by USGS. Separated these into:

Added several new libraries:

For a detailed list of all changes and additions included in IPW Version 2 see: What's New.

Image Display Utilities

Two image display utilities were modified to interpret and display IPW images. xli Version 1.6 by Graeme Gill, which was derived from xloadimage, and xv Version 3.10a by John Bradley.

Bibliography

Inclusion of a hyper-text linked bibliography containing nearly 100 references relating to IPW algorithms, utilities, commands, and applications.


IPW documentation / Last revised 20 May 2009 / IPW web site