RMA presentations at 2014 Bay-Delta Science Conference

October 28-30, 2014 — Sacramento, CA

Development of a Three-Dimensional, Stratified Flow Model of the Natural Delta
Presented by: Stephen Andrews and John DeGeorge
Supporting Authors: Edward Gross and Stacie Grinbergs

Reducing Uncertainty in the Design of in-Delta Sampling Experiments Using Particle-Tracking Models
Presented by: Marianne Guerin (RMA)
Supporting Author: Tamara Krauss (USGS)

Individual Based Modeling of Juvenile Chinook Salmon
Presented by: Ed Gross
Supporting Authors: Michael MacWillimans (Delta Modeling Associates), Benjamin Saenz (RMA), Aaron Bever (Delta Modeling Associates)

Quantifying Nutrient Loads and Transformations in the Delta
Presented by: Emily Novick (SFEI)
Supporting Authors: David Senn (SFEI), Marianne Guerin (RMA), Carol Kendall (USGS), Megan Young (USGS), Anthony Malkassian (SFEI/ UCSC), Don Yee (SFEI)

Tracing Nitrate and Ammonium Dynamics within the San Joaquin- Sacramento River Confluence Region Using Stable Isotopes
Presented by: Megan Young (USGS)
Supporting Authors: Carol Kendall (USGS), Rachel Mixon (USGS), Marianne Guerin (RMA), Sara Peek (USGS), Alex Parker (California Maritime Academy)

Conference website: Bay-Delta Science Conference 2014

New release of HEC-RAS 5.0 beta with new RAS2D feature

The USACE Hydrologic Engineering Center has released a new update of the HEC-RAS version 5.0 beta which includes: spatially varying Manning’s n values for 2D Flow Areas; velocity plotting for 1D and 2D areas; and improved hydraulic structure connections for 2D Flow Areas. The RAS2D computational engine was developed by Ben Chacon at RMA for HEC.

CWMS CAVI 3.0 demonstration and workshop at the USACE Forth Worth District

September 29th thru October 1st, 2014 — Fort Worth, TX
John DeGeorge and Mark Ackerman provided a two-day workshop on the new features of the USACE Corps Water Management System – Control and Visualization Interface (CWMS-CAVI) version 3.0. Attendees included staff from the Galveston, Fort Worth, Little Rock, and Tulsa District offices. This training workshop was set up to facilitate the national deployment of the CWMS system for real-time water control operations.

Caleb Dechant, Ph.D. joins the RMA team

RMA welcomes Caleb DeChant to the team. Caleb comes to RMA with a strong academic and practical background in civil engineering, hydrologic and hydraulic modeling, and computer programming. He received his Ph.D. in civil engineering from Portland State University in June 2014.

RMA presentation at 2014 13th IWA specialized conference on watershed and river basin management

September 9-12, 2014 — San Francisco, CA

Delta Turbidity Forecasting Using the Watershed Analysis Risk Management Framework (WARMF) and RMA11
Presented by: Mr. Scott Sheeder (Systech Water Resources) and Marianne Guerin (RMA)

RMA presentation at the HEC-RAS advanced user training at the USACE hydrologic engineering center

August 18, 2014 — Davis, CA

Class Lecture: Introduction to 1D/2D Unsteady Flow River Hydraulics and Equations
Presented by: Ben Chacon

Software: HEC-RAS

Christopher Bradley joins the RMA team

RMA welcomes new Systems Administrator Christopher Bradley to the team. Chris brings nine years of IT experience and is a Certified Information Security Manager and Microsoft Certified Systems Administrator.

RMA presentations at 2014 ASCE/EWRI world environmental & water resources congress

June 1-5, 2014 – Portland, OR

Columbia River Treaty 2014/2024 – Integrating Numerical Models, HEC-WAT Plug-in Technology
Presented by: John DeGeorge (RMA)
Supporting Authors: Mark Ackerman (RMA), Penni Baker (USACE Hydrologic Engineering Center)

Columbia River Treaty 2014/2024 – Distributed Computing for HEC-WAT/FRA
Presented by: Ryan Ripken (RMA)
Supporting Authors: Joshua M. DeGeorge, John DeGeorge (RMA), Matthew J. Fleming, Penni Baker (USACE Hydrologic Engineering Center)

Columbia River Treaty 2014/2024 — Monte Carlo Simulation in HEC-WAT
Presented by: Beth Faber (USACE Hydrologic Engineering Center)
Conference Proceeding Lead Author: Ben Chacon (RMA)
Supporting Authors: John DeGeorge (RMA), Matthew Flemming (USACE Hydrologic Engineering Center)

Conference website: ASCE/EWRI World Environmental & Water Resources

Adam Korynta joins the RMA team

RMA welcomes Junior Software Quality Assurance Engineer and Developer Adam Korynta to the team. Adam is a recent UCLA graduate.

RMA presentations at the 2014 UNTRIM user group workshop

May 19-20, 2014 – Trento, Italy

Unstructured grid particle tracking model formulation and testing
Presented by: Edward Gross (RMA)
Supporting Authors: Gerard Ketefian (RMA), Guus Stelling (Delft)

Development and Calibration of the Historical Sacramento-San Joaquin Delta Model
Presented by: Stephen Andrews
Supporting Authors: John DeGeorge, Ed Gross, Stacie Grinbergs

Subgrid Bathymetry Free-Surface Hydrodynamics in HEC-RAS
Presented by: Ben Chacon

Deziree Dizon joins the RMA team

RMA welcomes Junior Software Quality Assurance Engineer / Developer, Deziree Dizon, to the team.

RMA presentations at the 2014 annual meeting of the California water and environment modeling forum

February 24-26, 2014 — Folsom, CA

Modeling seasonal nutrient transformations and losses in the Delta: Project findings on the effects of using time-and-space-varying DICU concentrations in DSM2 V8.1.2
Presented by: Marianne Guerin

Development of the 3D Natural Delta Model
Presented by: Stephen Andrews
Supporting Authors: John DeGeorge, Ed Gross, Stacie Grinbergs

Conference website: 2014 California Water and Environment Modeling

RMA hosts Fairfield High School computer programming class

December 5, 2013 — RMA Office, Fairfield, CA

John DeGeorge led a discussion with local high school students on the application of computer programming in support of California water resources management, with special focus on visualization of hydrodynamic and water quality modeling of the Sacramento-San Joaquin Delta.

RMA presentation at the 2013 Floodplain Management Conference

September 5, 2013 — Anaheim, CA

Real-Time Modeling Tool Developed for DWR’s Delta Flood Emergency Preparedness and Response and Recovery Program
Presented by: John DeGeorge (RMA) and Jeff Twitchell (GEI)
Supporting Authors: Martin McCann, Jr. (Jack R. Benjamin & Associates, Inc.), Dustin Jones, (CA Department of Water Resources)

Conference website: 2013 Floodplain Management Conference

Invited presentation at 2013 workshop on the state of the science on fish predation on salmonids in the bay-delta

July 22, 2013

An Overview of Delta Hydrodynamics and Transport
Presented by: John DeGeorge

RMA presentations at the 2013 UNTRIM user group workshop

May 27-29, 2013 — Trento, Italy

Analysis of a Proposed Operable Barrier for Salinity Control in the Sacramento-San Joaquin Delta
Presented by: Stephen Andrews
Supporting Authors: Stacie Grinbergs, Richard Rachiele, John DeGeorge, Ed Gross, Marianne Guerin

Comparison of Diffusion Wave and Shallow Water Equation Simulation of Free-Surface Hydrodynamics in HEC-RAS
Presented by: Ben Chacon

Publication in Estuaries and Coasts

Title: Characterization of the Microcystis bloom and its nitrogen supply in San Francisco Estuary using stable isotopes
Authors: P. W. Lehman, C. Kendall, M. A. Guerin (RMA), M. B. Young, S. R. Silva, G. L. Boyer and S. J. Teh

P. W. Lehman, C. Kendall, M. A. Guerin, M. B. Young, S. R. Silva, G. L. Boyer and S. J. Teh. In press. Characterization of the Microcystis bloom and its nitrogen supply in San Francisco Estuary using stable isotopes. Estuaries and Coasts. DOI: 10.1007/s12237-014-9811-8

RMA presentation at DSM2 users group

March 6, 2013

An RMA Animation Tool for Visualizing QUAL Model Output
Presented by: Marianne Guerin and Richard Rachiele

Presentation PDF: Animation Tool for Visualizing QUAL

Marianne Guerin advances from convener to past-convener of the California Water and Environment Modeling Forum

Marianne Guerin of RMA has completed her two-year tenure as Convener of the California Water and Environmental Modeling Forum. As Convener, Marianne worked at re-invigorating CWEMF after a slide in participation during the Great Recession of 2008. By sponsoring half-day “Hot Topics” seminars that presented a factual review of controversial topics, CWEMF regained footing as an impartial forum for educating the modeling community. Now as Past-Convener, she provides mentoring to the new Convener, Ben Bray with EBMUD. Thanks Marianne for your hard work for CWEMF!

RMA presentations at the 2013 annual meeting of the California Water and Environmental Modeling Forum

Evaluating Productivity Potential for Prospect Island Restoration Alternatives Using Particle Tracking Methods
Presented by: Stephen Andrews
Supporting Authors: Richard Rachiele, John DeGeorge

A New Regression Relationship of X2 with Delta Outflow
Presented by: Ed Gross
Supporting Authors: Gerard Katefian

How Good Is My Model? Assessing Model Skill in a Regulatory Environment
Presented by: Marianne Guerin

Invited presentation at the Delta Independent Science Board Meeting

January 17, 2013 — Sacramento, CA

Recent Projects Modeling Local and Regional Impacts of Tidal Marsh Restoration
Presented by: John DeGeorge
Supporting Authors: Donald Smith, Richard Rachiele, Edward Gross, Stacie Grinbergs, Marianne Guerin, Stephen Andrews

Invited panel presentation at the state water resources control board workshop 3: analytical tools for evaluating the water supply, hydrodynamic, and hydropower effects of the bay-delta plan questions

November 13-14, 2012 —Sacramento, CA

Modeling is for Developing Insights
Invited panel members included: Jon Burau (USGS), John DeGeorge (RMA), John Durand (UC Davis), Greg Gartrell (CCWD), Marianne Guerin (CWEMF), Jay Lund (UC Davis), Pete Smith (USGS – ret.), William Smith (MWH), Mark Stacy (UCB), Staff — Chris Enright (DSC)