1 / 11

Water Quality Model for El Cajon Reservoir

Water Quality Model for El Cajon Reservoir. HEC-HMS Long-term Simulation of Cuenca Cajon. Oliver Obregon and Clark Barlow. Oliver Obregon, Thomas Lloyd, Clark Barlow Brigham Young University. Brigham Young University, In collaboration with ITESO University. Project Location. Issues.

zerlina-mcgowan
Download Presentation

Water Quality Model for El Cajon Reservoir

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. Water Quality Model for El Cajon Reservoir HEC-HMS Long-term Simulation of Cuenca Cajon Oliver Obregon and Clark Barlow Oliver Obregon, Thomas Lloyd, Clark Barlow Brigham Young University Brigham Young University, In collaboration with ITESO University

  2. Project Location

  3. Issues Dams are planned and under construction along the Santiago River in the Cajon watershed Mexican engineers would like to be able to predict how quickly new dams will be filled with water

  4. Model Background • What is HEC-HMS? Capable of long-term, distributed (gridded) simulations Methods Used within HEC-HMS • SMA (Soil Moisture Accounting) • MOD Clark

  5. Method Information • True long-term simulation • Uses parameters such as canopy storage, groundwater storage, infiltration rates, evapotransporation rates, etc. SMA MOD Clark • Requires fewer parameters • Better suited for single storm events (short-term simulations) • SCS based method

  6. HEC-HMS SMA Method • Information Gathered DEMs, Dam locations, Soil and Land Use Data (not used) • Information Not Gathered Everything else • SMA Project Approach • Using real and fabricated data, built a running, working model • Created a HEC-HMS SMA tutorial • Created a parameter optimization tutorial

  7. HEC-HMS MOD Clark Method • Information Gathered • DEMs, Dam locations, Soil and Land Use, Precipitation (Tepic) • Assumptions • 25 x 25 grid • Precipitation data was representative • Two month duration (wettest months) • MOD Clark Project Approach • Created CN table for land use and soil data • Used average daily precipitation values (6-hour and daily increments) • Used actual daily precipitation data from July-August 2006

  8. HEC-HMS MOD Clark Results 6 hour I day

  9. HEC-HMS MOD Clark Results Actual Precipitation, Linear distribution

  10. HEC-HMS MOD Clark Results Actual Precipitation, Modified Type II distribution

More Related