HYD151
Field Methods in Hydrology

WEEK 3

No Class on Monday

Lecture 07: Experimental Design and Sampling

HOMEWORK #1 IS DUE TODAY AT THE BEGINNING OF CLASS

Outline:
Experimental design
Spatial characterization
types of sampling schemes- uniform, random, transects, stratified
assessment of error associated with each scheme
determination of number of samples needed

Textbook reading:
Chapter 2.

Other reading:
none.

Related web links:
none.

Lecture 08: Streamflow Measurement and Sampling

Outline:
Theory behind measuring velocity
Velocity measurement methods
Float method
Propeller velocity meter
Electromagnetic velocity sensor
Ultrasonic doppler velocity meter
Acoustic doppler velocity profiler
Theory behind measuring discharge
Discharge measurement methods
Velocity-area method
Slope-area method
Rating curve method
Weirs and flumes

Method selection criteria
Demonstration of streamflow measurement devices.

Textbook reading:
none.

Other reading:
Gore, J. A. 1996. Chapter 3- Discharge Measurements and Streamflow Analysis. In (Hauer, F.R. and Lamberti, G.A., eds.) Methods in Stream Ecology. Academic Press, San Diego, p. 53-74.

Here are some useful references:
Buchanan, T. J. and Somers, W. P. 1968. Stage measurement at gaging stations. U.S. Geological Survey, Techniques of Water-Resources Investigations of the USGS, Book 3 Chapter A7.

Buchanan, T. J. and Somers, W. P. 1969. Discharge measurement at gaging stations. U.S. Geological Survey, Techniques of Water-Resources Investigations of the USGS, Book 3 Chapter A8.

Smoot, G. F. and Novak, C. E. 1968. Calibration and maintenance of vertical-axis type current meters. U.S. Geological Survey, Techniques of Water-Resources Investigations of the USGS, Book 8 Chapter B2.

Fasken, G. B. 1963. Guide for selecting roughness coefficient "n" values for channels.U.S. Dept. of Agriculture, Soil Conservation Service.

Limerinos, J. T. 1969. Determination of the Manning coefficient from measured bed roughness in natural channels. United States Geological Survey Open-file report.



Related web links:
USGS Streamflow methodology description and references
USGS stream statistics for Massachusetts on-line calculator

Streamflow equipment companies (these are not endorsements!)
Propeller velocity meters
Rickly Hydrological Company- carries complete line of USGS standard equipment.
Global Water- carries low cost probe.
Swoffer Instruments, Inc.
Gurley precision Instruments
Great Atlantic trading Company

Electromagnetic velocity meters
Marsh-McBirney, Inc.

Ultrasonic velocity meters
Unidata, Inc

Acoustic doppler velocity profilers
SonTek
Sunwest Technologies, Inc.

Assignment 3: Streamflow measurement

Homework: Due 02/08/06 (2 weeks)
hyd151exp3.doc
study site schematic map You do not need to use the full report format on this homework. Use a simplified report format but continue to show all calculations, graphs, maps, etc as clearly as possible.


Saturday field trip:
Meet in the parking lot behind Veihmeyer Hall at 9:00 am sharp. Be prepared to get wet and/or muddy!
Dress for potential rain AND DRESS WARM.
Bring your rite-in-the-rain notebooks!!!
Bring a lunch and water to drink!