January 25, 2016 Overview Status of NFSEG Steady-State Model - PowerPoint PPT Presentation

Fatih Gordu, PE (SJRWMD) Trey Grubbs (SRWMD) Douglas Durden, PE (SJRWMD) Ron Basso, PG (SWFWMD) January 25, 2016

Overview — Status of NFSEG Steady-State Model Calibration — NFSEG Model Simulations — NFSEG Transient Model Development

Status of NFSEG Steady-State Model Calibra:on — Groundwater Model Calibration (2001 and 2009) — HSPF Model Calibration (1992 thru 2014)

HSPF Model Calibra:on — Transient Calibration — 1992 through 2014 ü Precipitation ü Evapotranspiration ü Agricultural Irrigation ü Non-Agricultural Irrigation ü Septic Tanks

Groundwater Model Calibra:on Errors in elevation • dataset led to erroneous simulated flooding in some areas Layer 1 top elevation • and some boundary conditions updated with improved elevation dataset (USGS 3D Elevation Program)

Groundwater Model Calibra:on NSEG 2009 Simulated Potentiometric Surface

Groundwater Model Calibra:on

Model Status — HSPF Models — Calibration of base models done — Evaluating calibration of models with irrigation and septic tank flows — Groundwater Model — Updated land-surface elevation dataset — PEST model calibration in progress — Working on improving simulations of spring flows and river baseflows — Refining hydraulic conductivity distribution

Next Steps — Complete PEST Calibration (2001 and 2009) — Technical Team Review — Execute Model Scenarios

NFSEG Model Simula:ons — 2001 and 2009 — 2015 – 2035 (5-year increments) — Pumps-off

NFSEG Transient Model Development — Work to date: — Conceptual model report — 2002-2010 calibration period — Monthly stress periods — Steady-state model development — Water-use datasets — Observation datasets — Recharge and ET datasets — Programming

NFSEG Transient Model — Develop steady-state NFSEG — Create transient datasets — Boundary Conditions (Recharge, ET, Water Use, etc.) — Observation data (levels and flows) — Steady-state simulation of initial condition for transient model — Transient Calibration: — Storage properties — Transient Recharge — Documentation and technical review — Definition, execution, and postprocessing of scenario simulations

NFSEG Transient Model Development — Next steps — Complete NFSEG steady-state model development and review — Develop more detailed work plan for development of transient NFSEG — Target start date for intensive transient model development: Spring 2017 — Estimated time for completing transient model development: 4-5 years after completion of steady-state model

Upcoming Mee:ngs — Technical Team Meetings (tentative) — February 3, 2016 — Steering Team Meeting (tentative) — February 10, 2016

Ques:ons