Table of Contents
NWS-COMET Hydrometeorology Course 15 - 30 June, 1999
Dennis L. Johnson, Asst. Professor Michigan
Technological University Department of Civil & Env. Engineering (906) 487 - 3613
(phone) (906) 487 - 2943 (fax) dennisj@mtu.edu (email) http://www.civil.mtu.edu/~dennisj/
Where is MTU?
Topographic Relief of Great Lakes Region
Some Lake Superior Facts
Usual Houghton
PPT Slide
PPT Slide
In the end, it is intended that participants will
understand the hydrologic forecast process, the assumptions in the process, and the
responsibilities associated with interpreting and issuing the forecast.
Mission of NOAA's NWS Hydrologic Services Program
Modernized NWS
New or Improved Products
What is ESP?
What is ESP?
NWS Office of Hydrology
Hydrology
Hydrometeorology
Hydrometeorology - Links
PPT Slide
Units & Properties of Water
Common Unit Conversions
Area
Volume
Runoff Volume
Discharge
Power
Hydrologic Cycle
Precipitation
Snow
Evaporation
Transpiration
Storage - Surface
Infiltration
Infiltration cont.
Subsurface Flow
Storage - Subsurface
Runoff
Overland Flow
Overland Flow (cont.)
Gullies & Rills
Swales
Channel Flow
Stream Channels
Streamflow
Storage - Reservoirs
Storage - Reservoirs (cont.)
NWS - Forecast Terminology
Hydrology Terminology
Hydrology Terminology
Hydrology Terminology
Hydrology Terminology
Hydrology Terminology
Hydrology Terminology
Hydrologic Routing
Hydraulic Routing
Hydrology Terminology
Hydrology Terminology
Hydrology Terminology
Hydrology Terminology
Hydrology Terminology
Hydrology Terminology
Hydrology Terminology
Hydrology Terminology
Hydrology Terminology
Hydrology Terminology
Hydrology Terminology
Hydrology Terminology
Hydrology Terminology
Derived Unit Hydrograph
Synthetic Unit Hydrograph
Hydrology Terminology
Hydrology Terminology
Hydrology Terminology
Hydrology Terminology
Hydrology Terminology
Hydrology Terminology
Hydrology Terminology
Hydrology Terminology
Hydrology Terminology
Fluid Concepts
Energy or Energy Head
Energy or Energy Head
Energy Head
Momentum Equation
Hydrostatic Forces
Friction Forces
Weight
External Forces
Steady vs. Unsteady Flow
Uniform and Nonuniform Flow
Super -vs.- Sub Critical
Critical flow: a demonstration
Critical flow: a demonstration
Critical flow: a demonstration
Froude number
Froude number
Froude number - mean depth
Froude number
Super-vs.-Subcritical
Super-vs.-Subcritical
Open Channel Equations
Chezy Equation
Chezy Equation
Chezy Equation
Manning’s Equation
Manning’s Equation
Manning’s Equation
Bernoulli Equation
Bernoulli Equation
Bernoulli Equation
Bernoulli Equation
St. Venant Equations
St. Venant Equations
Simulating the Hydrologic Response
Model Types
Precipitation
Precipitation (cont.)
Thiessen
Isohyetal
NEXRAD
Losses
Modeling Losses
Simulating Watershed Response Infiltration
Simulating Watershed Response Infiltration
Simulating Watershed Response Infiltration
Simulating Watershed Response Infiltration
Simulating Watershed Response Infiltration
Simulating Watershed Response Infiltration
Constant Percentage Example
Simulating Watershed Response Infiltration
Simulating Watershed Response Infiltration
Simulating Watershed Response Infiltration
Simulating Watershed Response Infiltration
SCS (NRCS) Runoff Curve Number
More Modifications
Estimating “S”
Determine CN
Adjust CN’s
SAC-SMA
Runoff
Unit Hydrograph
Linearity of Unit Hydrograph
Derived Unit Hydrograph
Derived Unit Hydrograph
Derived Unit Hydrograph
Synthetic Unit Hydrograph
SCS - Dimensionless UHG
SCS - Dimensionless UHG
SCS - Dimensionless UHG
Time-Area
Time-Area
Time-Area
Stream Routing
Typical Effect of Routing
Lakes, Reservoirs, Impoundments,
Factors Affecting the Hydrologic Response
Current Conditions
Precipitation Patterns
Land Use
Channel Changes
Rating Curves |