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Hydrologic Processes Modeling Workshop Tucson, Arizona November 8-9, 2000

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Hydrologic Processes Modeling Workshop Tucson, Arizona November 8-9, 2000 Hydrologic Processes Modeling Workshop Tucson, Arizona November 8-9, 2000 ACKNOWLEDGEMENTS This Workshop on Hydrologic Process Modeling and the report you are reading would not have been possible without the efforts of many individuals. These people gave of themselves because they care about hydrologic modeling, their profession, and because they want to see technology used for better resource decision making. The concept to pursue this workshop would not have been possible without the support from the Subcommittee on Hydrology (SOH). The SOH in their foresight established the Task Committee on Hydrologic Modeling and allowed those members the freedom to organize and convene this workshop. Appreciation is extended to all members on the Task Committee on Hydrologic Modeling, which includes: Mimi Dannel; Russ Kinnerson, Arlen Feldman; Marshall Flug; Donald Frevert, Chair; Doug Glysson; George Leavesley; Steve Markstrom; Jayantha Obeysekera; Mike Smith; Ming Tseng; Don Woodward; and Ray Whittemore. In addition, the University of Arizona provided our host facility, arranged the logistical details for the workshop, and provided a great environment for this workshop. Special appreciation is extended to Paul Baltes for making the on site arrangements for the workshop and to Pam Lawler, for assisting Paul with the on-site arrangements and also handling the registration for this workshop. Soroosh Sorooshian, who initially agreed to get the UA involved as host facility, and Hoshin Gupta, both of SAHRA as well as Jim Washburne, Assistant Director for Education at the UA are owed our thanks for arranging and coordinating UA’s faculty, staff and student support of this workshop. Special thanks are extended to Terri Sue Hogue for scheduling and overseeing the students from the University of Arizona that served as note takers, recorders, and prepared the written Discussions for the four Panels and of the Breakout sessions. Of course we greatly thank and appreciate the students that gave their time and extra hours to make sense of the notes they took during the workshop. These students are: Tom Pagno; Felipe Ip; Dave Gochis; Eleanor Burke; Fezan Misirli; Kristie Franz; Holy Hartmann; Terri Sue Hogue; Newsha Khodatalab; and Hamid Moroadkhani. We would also like to extend our sincere thanks to the invited speakers, panelists, and participants that helped make this workshop a huge success. 1 WORKSHOP AGENDA & REPORT TABLE of CONTENTS Hydrologic Processes Modeling Workshop Tucson, Arizona November 8-9, 2000 Objectives S Identify current models with Surface Water purposes or components S Review previous models comparisons projects/publications S Develop checklist/criteria for user assessment of models to meet needs S Identify data sets for testing/comparing models S Investigate potential for unifying software design and resource libraries S Develop information to help plan conference in 2002 Acknowledgements November 8th - Wednesday 7:30-8:30 Registration 8:30-9:30 Plenary session a. Welcome and logistics – Don Frevert, BOR and Soroosh Sorooshian, U. Arizona b. History of Subcommittee on Hydrology and other committees in ACWI - Tom Yorke, USGS c. Review of Las Vegas April 1998 Conference - Don Woodward, NRCS d. Objectives of this Workshop - Arlen Feldman, Corps 9:30-10:00 Break 10:00-12:00 Panel 1: Software Development Philosophy and Environment Issues: Modular design, integration with larger systems, graphic user interface, graphics, multi-platform verus single system, object-oriented programming, design for primary customers - or profession, proprietary or public domain, GIS basis or pre/post processing, etc. Moderator: Edith Zagona, CADSWES a. Modular Modeling System – George Leavesley, USGS b. HEC Next-Generation Software – Darryl Davis, Corps c. Mike SHE – Henrik Sorensen, Danish Hydraulics Institute d. Models 2000 – Robert Carousel, EPA e. Spatial Hydrologic Modeling – David Maidment, U. Texas 12:00- 1:30 Lunch 1:30-3:00 Panel 2: Roles of State/Federal/University/Private Organizations 2 Issues: Public-domain or proprietary status for software developed with public money, value added by distributors, copyright public-domain code, licensing, long-term maintenance, user fees, etc. Moderator: David Ford, Ford Consulting Engineers a. University – Jim Nelson, BYU b. Federal – Mike Smith, NWS c. Private software developer – Tony Donigian, Aqua Terra d. Private software distributor – Sasa Tomic, Haestad Methods e. State – Sushil Arora, California 3:00-3:30 Break 3:30-5:00 Panel 3: Appropriate use and Guidance for use of models Issues: User expertise required, control of user qualifications, easy-to-use misuse of models, guidance for appropriate use, independence from model developer, etc. Moderator: Don Woodward, NRCS a. South Florida Water Mgmt Dist. – Obey Obeysekera b. Natural Resources Conservation Service – Bill Merkel c. Hydrocomp, Inc. – Norm Crawford d. Oregon State University – Wayne Huber e. Lower Colorado River Authority, TX – Quentin Martin 6:00-8:00 Icebreaker/Dinner November 9th - Thursday 8:00-9:30 Panel 4: Measures of Models’ Performance Issues: Comparisons in the literature, standard data sets and test results, ISO 9000 certification, statistical and graphical tools to assess data and results, etc. Moderator: Ming Tseng, Corps a. Univ. of Georgia – George Vellidis b. Agricultural Research Service – David Goodrich c. Hydrosphere, Inc. – Ben Harding d. Illinois Water Survey - Misganaw Dimissie (no written summary) e. Univ. of Arizona – Soroosh Sorooshian 3 9:30-10:00 Break 10:00-12:00 Breakout sessions (same moderators as for Panels) Objectives: The breakout sessions will summarize the comments provided throughout the workshop with respect to their panel subject. Additional needs and problems will be identified. These results will be presented to the workshop in the following ‘reporting’ session as well as be used for the workshop report. Special attention should be given to making recommendations for how to best address these needs/problems in the 2002 conference. The conference planners will use this information to better address these subjects. Panel 1: Software Development Philosophy and Environment Panel 2: Roles of State/Federal/University/Private Organizations Panel 3: Appropriate use and Guidance for use of models Panel 4: Measures of Models’ Performance 12:00-1:30 Lunch 1:30-3:00 Reports of breakout groups 3:00-3:30 Break 3:30-5:00 Closing: Summarize workshop Make recommendations/assignments for 2002 Conference Discuss/make assignments for Workshop Report Additional Attachments Original List of Questions Posed to the Four Panels This list was compiled from input provided by each invited workshop attendee. All participants were asked to provide input, prior to the workshop, in the form of topics for each of the four panels to discuss or questions that need to be addressed. List of Workshop Attendees 4 Plenary Session - Item A Welcome and logistics Don Frevert, US BOR and Soroosh Sorooshian, Univ. of Arizona The Task Committee on Hydrologic Modeling, of the Subcommittee on Hydrology, asked Soroosh Sorooshian if the University of Arizona would be willing to assist with and host this Hydrologic Processes Modeling Workshop. The University of Arizona has a long history and is a leading institution in the area of Hydrology and Watershed Management. Soroosh Sorooshian now serves as Director for a new National Science Foundation established Science and Technology Center for Sustainability of semi-Arid Hydrology and Riparian Areas (SAHRA), located at the University of Arizona. The Mission of SAHRA is: to promote sustainable management of water resources in semi-arid regions through stakeholder-driven interdisciplinary research, aggressive public outreach and strong education initiatives, leading to rapid dissemination and application of cutting-edge scientific knowledge. Complete information on SAHRA is available on the following web site: www.sahra.arizona.edu 5 Plenary Session - Item B History of Subcommittee on Hydrology and other committees in ACWI Tom Yorke, USGS The Subcommittee on Hydrology (SOH) started out as a Federal interagency group operating within the federal government for over fifty years now. A brief history of the committee and the organization it reported is provided in the to following list. * October 1, 1945 - First meeting held, organized under the Federal Inter-Agency River Basin Committee * September 14, 1954 - Inter-Agency Committee on Water Resources * June 7, 1966 - Water Resources Council * Dec. 7, 1982 - Inter-Agency Advisory Committee on Water Data * Dec. 10, 1991 - Water Information Coordination Program (WICP) * Aug. 8, 1998 - Advisory Committee on Water Information (ACWI) The SOH now reports directly to the ACWI, which operates under the Federal Advisory Committee Act (FACA). The lead agency for overseeing WICP is the US Geological Survey (USGS). Under this structure the membership in the SOH includes Federal, interstate, State, Tribal, and local government agencies, as well as private and non-profit organizations. Complete and updated information on ACWI, WICP, as well as the Terms of Reference for the SOH is available at the following web site: http://water.usgs.gov/wicp/acwi/hydrology/hydrotref.html As the parent organization the SOH changed over the years, as did the Purpose; membership and participation in the SOH; as well as the activities (including subcommittees and Task groups) of the SOH. A brief statement of Purpose from 1945 and 1988 are given here. Original 1945 Purpose: To develop
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