CE 374 K – Hydrology Second Quiz Review Daene C. McKinney.

Slides:



Advertisements
Similar presentations
Hydrology Rainfall - Runoff Modeling (I)
Advertisements

The Drainage Basin System
Hydrologic Analysis Dr. Bedient CEVE 101 Fall 2013.
HYDROLOGY (670441) Philadelphia University Faculty of Engineering
CHARACTERISTICS OF RUNOFF
Runoff and Streamflow P Q
Runoff Processes Daene C. McKinney
Hydrological Modeling for Upper Chao Phraya Basin Using HEC-HMS UNDP/ADAPT Asia-Pacific First Regional Training Workshop Assessing Costs and Benefits of.
Unit Hydrograph The Unit Hydrograph Unit Hydrograph Derivation
Runoff Processes Reading: Applied Hydrology Sections 5.6 to 5.8 and Chapter 6 for Tuesday of next week.
Unit Hydrograph Reading: Sections , 7.5, 7.7,
Hydrograph Interpretation.
Transforming the Runoff
Excess Rainfall Reading for today’s material: Sections Slides prepared by V.M. Merwade Quote for today (contributed by Tyler Jantzen) "How many.
Hydrologic Abstractions
Hydrologic Theory One of the principal objectives in hydrology is to transform rainfall that has fallen over a watershed area into flows to be expected.
Precipitation statistics Cumulative probability of events Exceedance probability Return period Depth-Duration-Frequency Analysis.
Synthetic Unit Hydrographs
Chapter One Hydrologic Principles Flashlight and globe.
Engineering Hydrology (ECIV 4323)
CE 3372 – Lecture 10. Outline  Hydrology Review  Rational Method  Regression Equations  Hydrographs.
Hydrology & Water Resources Engineering
Watershed Management Water Budget, Hydrograph Analysis
Flood hydrographsHydrosphere. Flood hydrographs show the effect that precipitation has on the water levels in a river. After a storm the water levels.
Module 6: Routing Concepts Theodore G. Cleveland, Ph.D., P.E, M. ASCE, F. EWRI October 2013 Module 6 1.
Higher Geography: Drainage basins.
HEC-HMS Runoff Computation.
CE 424 HYDROLOGY 1 Instructor: Dr. Saleh A. AlHassoun.
Engineering Hydrology (ECIV 4323)
The Drainage Basin System
Hydrologic Analysis Dr. Phil Bedient Rice University.
Higher Hydrosphere Drainage Basins[Date] Today I will: - Know what a drainage basin is - Be able to explain it in terms of inputs, processes or outputs.
Drainage Basin. Mississippi River Basin Drainage Basin.
 Before break, we discussed watersheds and what constitutes a watershed. How do you think water moves through a watershed?
AOM 4643 Principles and Issues in Environmental Hydrology.
Surface Water Surface runoff - Precipitation or snowmelt which moves across the land surface ultimately channelizing into streams or rivers or discharging.
Synthetic UH Definition: Synthetic Hydrograph is a plot of flow versus time and generated based on a minimal use of streamflow data. Example: A pending.
CE 3354 Engineering Hydrology
Hydrograph Analysis. Components of river flow Contributions into a river/stream Overland flow – Flow over land surface due to precipitation (runoff)
LibHydro.
CHAPTER 6: Hydrographs Engineering Hydrology (ECIV 4323) -1 Instructor: Dr. Yunes Mogheir 2015.
Rainfall and Runoff Reading: Haested Section 2.4 Computing Hydrographs.
Rainfall-Runoff modeling Forecasting and predictingForecasting and predicting –Flood peaks –Runoff volumes Due to Large rain and snowmelt events ***especially.
HYDROGRAPH is a graph showing the rate of flow (discharge) versus time past a specific point in a river, or other channel or conduit carrying flow. It.
Sanitary Engineering Lecture 4
Drainage Basin. A drainage basin is the name given to the area of land which is drained by a river. The drainage basin acts as a funnel by collecting.
a) Water stored in the rocks below ground
Runoff.
BUILDING AND RUNNING THE HYDROLOGICAL MODEL
CEE 3430, Engineering Hydrology David Tarboton
Precipitation Measurement
HYDROLOGY Lecture 10 Unit Hydrograph
Rainfall-Runoff modeling
Water supply Flood prediction and forecasting. Water quality
S Curves From Mays, 2011, Ground and Surface Water Hydrology.
DES 606 : Watershed Modeling with HEC-HMS
Basic Hydrology & Hydraulics: DES 601
Engineering Hydrology (ECIV 4323)
The Drainage Basin System
INTRODUCTION TO HYDROLOGY
Dr. Phil Bedient Rice University
SCS Dimensionless Unit Hydrograph
Hyetographs & Hydrographs
SCS Dimensionless Unit Hydrograph
Hydrology CIVL341 Introduction
Match the drainage basin terms to the correct definitions!
HEC-HMS Runoff Computation Modeling Direct Runoff with HEC-HMS Empirical models Empirical models - traditional UH models - traditional UH models - a.
Presentation transcript:

CE 374 K – Hydrology Second Quiz Review Daene C. McKinney

Runoff Processes Watershed Watershed Terminology Terminology Concepts Concepts Streamflow Streamflow Components of hydrologic cycle affecting it Components of hydrologic cycle affecting it Atmospheric Moisture Interception Snowpack Surface Soil Moisture Groundwater Streams and Lakes Runoff Rain Snow Evaporation Evapotranspiration Evaporation Throughfall and Stem Flow Snowmelt Infiltration Overland Flow Percolation Groundwater Flow Channel Flow PerviousImpervious Energy Watershed Boundary

Hydrographs Peak Rising Limb Recession Limb Time Discharge, Q Beginning of Direct Runoff Baseflow Recession Baseflow Recession Centroid of Precipitation Basin Lag Time of Rise End of Direct Runoff Inflection Point

Baseflow Separation Three techniques Three techniques Straight – line method Straight – line method Fixed Base Method Fixed Base Method Variable Slope Method Variable Slope Method Time Discharge, Q A B Baseflow Direct Runoff Time Discharge, Q A B D C Baseflow Direct Runoff Time Discharge, Q A B C E Baseflow Direct Runoff

Abstraction (Losses) Estimation Phi – Index Method Phi – Index Method  t=0.27

Abstraction (Losses) Estimation SCS Curve Number Method SCS Curve Number Method Time Precipitation

Hydrologic Measurement Climate Climate Precipitation Precipitation Surface Water Surface Water Flow Flow Stage Stage Rating Curve Rating Curve

Unit Hydrograph Time – Area Relationship Time – Area Relationship A B C D G Time, t Excess Rainfall

Unit Hydrograph Derivation Derivation

Reservoir Routing Storage - Discharge Relationship Storage - Discharge Relationship Level Pool Routing Level Pool Routing

River Routing Muskingum Method Muskingum Method Prism Storage Prism Storage Wedge Storage Wedge Storage

SCS Dimensionless Hydrograph SCS developed a parametric UH model based on averages of UHs from a large number of small agricultural watersheds in the US. A – watershed area C – conversion factor for unit system T p - time to peak  t – excess precip duration t lag - basin lag, time between center of rainfall excess and UH peak Given ER hyetograph and time lag, then solve for time of UH peak, then UH peak

Frequency Analysis Recurrence Interval Recurrence Interval Return Period: Average recurrence interval Return Period: Average recurrence interval Probability of an extreme event is related to the return period Probability of an extreme event is related to the return period

Extreme Value Distributions EV-I, EV-II, and EV-III EV-I, EV-II, and EV-III Extreme Value Type I (Gumbell) Distribution Extreme Value Type I (Gumbell) Distribution

Frequency Factors In general In general Normal Normal EV-I EV-I LP-III: See table LP-III: See table

Hydrologic Design Depth-Duration-Frequency Estimates TP-40, Hydro-35, Asquith I – D – F Curves I – D – F Curves Design Hyetographs: Design Hyetographs: distribute rainfall over time Hyetograph SCS Hyetograph Triangular Hyetograph Triangular Hyetograph Alternating Block Method Alternating Block Method