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

January 25, 2016

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

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