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Aly I. El-Kadi

NETPATH User's Interface.  The Isotope Hydrology Section of the International Atomic Energy Agency (IAEA)  has sponsored a project to create a user's interface for the model NETPATH. This model is used to interpret net geochemical mass-balance reactions between initial and final waters along a hydrologic flow path. The program uses chemical and isotopic data for waters from a hydrochemical system. The interface, which greatly simplifies data entry (see this example screen ), is developed by Aly El-Kadi with assistance from Kayo Fujiwara, a former student in UH's Department of Information and Computer System. A meeting was held in Menlo Park, California, July 24 - 26, 2007, to test and update the software. The meeting was attended by L. Niel Plummer, of the USGS and model developer, Pradeep Aggarwal, Head of IAEA's Hydrology Section, and Aly. A technical note will be prepared for publication in Ground Water to describe the program. The software itself is available from IAEA within their isotope educational software. The updated version will be independently distributed after completion.