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Modeling Stream Flow of Clear Creek Watershed-Emory River Basin. Presented by Divya Sharon GEOG-5650 Instructor:Dr.Peter Li. Outline. Introduction Background Motivation Models Data requirement Methodology Results Conclusion. INTRODUCTION.

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modeling stream flow of clear creek watershed emory river basin

Modeling Stream Flow of Clear Creek Watershed-Emory River Basin

Presented by

Divya Sharon

GEOG-5650

Instructor:Dr.Peter Li

outline
Outline
  • Introduction
  • Background
  • Motivation
  • Models Data requirement
  • Methodology
  • Results
  • Conclusion
introduction
INTRODUCTION
  • Hydrology-Study of Water in the natural or disturbed environment
  • Factors influencing Watershed Hydrology-Land use, climate and soil conditions.
  • Need for Stream Flow Modeling-Surface run off-source of non-point source pollution.
  • Affects land surface characteristics, water balance and hydrologic cycle.
  • Relationship between land use types and quantity and quality of water.
hydrologic cycle
HYDROLOGIC CYCLE

http://www.uwsp.edu/geo/faculty/ritter/images/hydrosphere/hydrocyc.jpg

background
Background
  • BASINS-developed by US EPA for watershed based analysis and TMDL development.
  • Integrates with models HSPF, SWAT, AQUATOX,AGWA….
  • HSPF-Hydrologic Simulation Program, Fortran
  • Watershed model that simulates non-point source runoff and pollutant loadings for a watershed.
  • Continuous simulation model with fixed, user selected, time steps .
motivation
Motivation
  • To learn modeling software first hand
  • To experience the modeling process
  • To understand the various parameters associated with hydrologic process better.
methodology
Methodology
  • Download data-Basin's data extension
  • Watershed Delineation-Automatic Delineation
  • Creation WDM file-Weather data management file
  • Creation of UCI file
  • Flow calibration
  • Model validation
data requirements
Data Requirements
  • Delineation-NHD, DEM, Watershed Boundary (Hydrologic cataloging Unit layer)
  • UCI file-Requires-Land use, Reach file, DEM, USGS hydrologic unit boundaries.
  • Environmental Monitoring data- locations of water quality monitoring stations, weather stations and USGS gaging station.
study area
STUDY AREA
  • Clear creek watershed part of the Emory River Basin and it lies in cumberland plateau
  • The land use in the clear creek watershed is approximately 78% forest, 17 % agriculture, 6% developed areas
hspf model
HSPF MODEL
  • Three sub modules-Pervious Land(PERLND), Impervious Land (IMPLND) and Reaches (RCHRES).
parameters for simulation
Parameters for Simulation
  • Hourly, daily precipitation data-

http://www1.ncdc.noaa.gov/pub/orders/609796812343dat.txt

Flow calibration-2001-2004

Flow Validation 2005

Annual Volumes and Seasonal Volumes

Parameters Estimation

conclusion
Conclusion
  • HSPF model gives good results
  • The model simulates the flow well. A correlation coefficient of 0.823 is obtained.
  • To generate different scenarios. (to track the effect of land use changes on stream flow)
references
References
  • http://www.epa.gov/ost/basins/
  • http://www1.ncdc.noaa.gov/pub/orders/609796812343dat.txt
  • http://www.watershedhydrology.com/
  • Arthur, Benjamin Bryan., 2003. “Testing the transfer of hydrologic model parameters across scales: Modeling the Emory River, Daddy’s creek, and Crooked fork watersheds”
  • Patuxent Watershed Model 2005, Internet, April 2005, Available: http://www.chesapeakebay.net/info/model.cfm