Publication in Estuaries and Coasts

Title: Freshwater Flow Affects Subsidies of a Copepod (Pseudodiaptomus forbesi) to Low Salinity Food Webs in the Upper San Francisco Estuary
Authors: J. Hassrick, J. Korman, W. Kimmerer, E. Gross (RMA), L. Grimaldo, C. Lee, A. Schultz

J. Hassrick, J. Korman, W. Kimmerer, E. Gross (RMA), L. Grimaldo, C. Lee, A. Schultz. (2023). Freshwater Flow Affects Subsidies of a Copepod (Pseudodiaptomus forbesi) to Low Salinity Food Webs in the Upper San Francisco Estuary, Estuaries and Coasts.

Publication in Marine Ecology Progress Series

Title: Hatching distribution, abundance, and losses to freshwater diversions of longfin smelt inferred using hydrodynamic and particle-tracking models
Authors: E. Gross (RMA), W. Kimmerer, J. Korman, L. Lewis, S. Burdick (RMA), L. Grimaldo

E. Gross (RMA), W. Kimmerer, J. Korman, L. Lewis, S. Burdick (RMA), L. Grimaldo. (2022). Hatching distribution, abundance, and losses to freshwater diversions of longfin smelt inferred using hydrodynamic and particle-tracking models, Marine Ecology Progress Series, Volume 700: 179-196.

Publication in PLOS One

Title: Swimming behavior of emigrating Chinook Salmon smolts
Authors: R. Holleman (RMA), E. Gross (RMA), M. Thomas, A. Rypel, N. Fangue

R. Holleman (RMA), E. Gross (RMA), M. Thomas, A. Rypel, N. Fangue. (2022). Swimming behavior of emigrating Chinook Salmon smolts, PLoS ONE, Volume 17(3): e0263972.

Publication in San Francisco Estuary and Watershed Science

Title: Ecological Effects of Climate-Driven Salinity Variation in the San Francisco Estuary: Can We Anticipate and Manage the Coming Changes?
Authors: C. Ghalambor, E. Gross (RMA), et al.

C. Ghalambor, E. Gross (RMA), et al. (2021). Ecological Effects of Climate-Driven Salinity Variation in the San Francisco Estuary: Can We Anticipate and Manage the Coming Changes?, San Francisco Estuary and Watershed Science, Volume 19, Issue 2, Article 3.

Publication in San Francisco Estuary and Watershed Science

Title: Statistical Evaluation of Behavior and Population Dynamics Models that Predict Movement and Proportional Entrainment Loss of Adult Delta Smelt in the Sacramento–San Joaquin River Delta
Authors: J. Korman, E. Gross (RMA), L.Grimaldo

J. Korman, E. Gross (RMA), L.Grimaldo. (2021). Statistical Evaluation of Behavior and Population Dynamics Models that Predict Movement and Proportional Entrainment Loss of Adult Delta Smelt in the Sacramento–San Joaquin River Delta, San Francisco Estuary and Watershed Science 2021, Volume 19, Issue 1, Article 1.

Publication in San Francisco Estuary and Watershed Science

Title: Modeling Delta Smelt Distribution for Hypothesized Swimming Behaviors
Authors: E. Gross (RMA), J. Korman, L.Grimaldo, M. MacWilliams, A. Bever, P. Smith

E. Gross (RMA), J. Korman, L.Grimaldo, M. MacWilliams, A. Bever, P. Smith. (2021). Modeling Delta Smelt Distribution for Hypothesized Swimming Behaviors, San Francisco Estuary and Watershed Science 2021, Volume 19, Issue 1, Article 3.

Invitation to Teaming Partners

Invitation to develop new teaming partners to support software development services for the US Army Corps of Engineers (USACE), Hydrologic Engineering Center (HEC).

RMA has received a Single Award Task Order Contract (SATOC) from USACE to support software development services for HEC. This contract will support ongoing development of a wide range of HEC software products including HEC-HMS, HEC-ResSim, HEC-RAS, HEC-FDA, and the Corps Water Management System (CWMS). For more information on teaming opportunities, please visit Team Partners to Support Software Development Services for USACE.

Publication in Water, Special Issue Tracer and Timescale Methods for Passive and Reactive Transport in Fluid Flows

Title: Source Water Apportionment of a River Network: Comparing Field Isotopes to Hydrodynamically Modeled Tracers
Authors: L. Tomkovic, E. Gross (RMA), B. Nakamoto, M. Fogel, C. Jeffres

L. Tomkovic, E. Gross (RMA), B. Nakamoto, M. Fogel, C. Jeffres. (2020). Source Water Apportionment of a River Network: Comparing Field Isotopes to Hydrodynamically Modeled Tracers, Water, Special Issue Tracer and Timescale Methods for Passive and Reactive Transport in Fluid Flows. Water 2020, 12(4), 1128.

Publication in Water, Special Issue Tracer and Timescale Methods for Passive and Reactive Transport in Fluid Flows

Title: The Use of Stable Isotope-Based Water Age to Evaluate a Hydrodynamic Model
Authors: E. Gross (RMA), S. Andrews (RMA), B. Bergamaschi, B. Downing, R. Hollerman, S. Burdick (RMA), J. Durand

E. Gross (RMA), S. Andrews (RMA), B. Bergamaschi, B. Downing, R. Hollerman, S. Burdick (RMA), J. Durand. (2019). “The Use of Stable Isotope-Based Water Age to Evaluate a Hydrodynamic Model”, Water, Special Issue Tracer and Timescale Methods for Passive and Reactive Transport in Fluid Flows. Water 2019, 11, 2207.

Penni Baker Joins the RMA Team

RMA welcomes Penni Baker to the team as a Software Quality Assurance Engineer. Penni has an Associate degree from Cosumnes River College; a Programming Certificate from California State University, Sacramento; and, 45 years of experience working for the U.S. Army Corps of Engineers, Hydrologic Engineering Center in various jobs, the last job was as an IT Specialist.

Publication in San Francisco Estuary and Watershed Science Journal

Title: Effects of Drought and the Emergency Drought Barrier on the Ecosystem of the California Delta
Authors: W. Kimmerer, F. Wilkerson, B. Downing, R. Dugdale, E.S. Gross (RMA), K. Kayfetz, S. Khanna, A.E. Parker, J. Thompson

W. Kimmerer, F. Wilkerson, B. Downing, R. Dugdale, E.S. Gross (RMA), K. Kayfetz, S. Khanna, A.E. Parker, J. Thompson. (2019). “Effects of Drought and the Emergency Drought Barrier on the Ecosystem of the California Delta”, San Francisco Estuary and Watershed Science, 17(3).

RMA Presents at the 2019 California Water & Environmental Modeling Forum Annual Meeting

April 22-24, 2019 — Folsom, CA

Wetland Assessment and Drainage Modeling with HEC-RAS
Presented by: Steve Andrews (RMA)
Supporting Authors: Scott Burdick (RMA), John Takekawa (SRCD), Steve Chappell (SRCD), Robert Eddings (CWA), Cliff Feldheim (DWR)

Calibration of the 3D RMA San Francisco Estuary Model for Longfin Smelt Studies
Presented by: Scott Burdick
Supporting Authors: Edward S. Gross, Steve Andrews

Scott Burdick presenting at annual meeting.

Conference website: 2019 CWEMF Annual Meeting