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Last updated: 01/07/08
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HYD151
Field Methods in Hydrology
WEEK 5
MIDTERM EXAMINATION ON FRIDAY
Exam will cover all material through and including February 1.
Lecture 12: Water quality measurement and sampling
Outline:
Definition and motivation
Field measurement and collection
suspended sediment load
turbidity/clarity
temperature
chemistry (pH, Eh, conductivity, dissolved oxygen)
Lab measurement
sample handling
major cations and anions
nutrients
organics
Quality assurance/quality control
Textbook reading:
Pages 141-150 and 159-160 of Chapter 9
Chapter 16
Other reading:
None.
Here are some useful references:
U.S. Geological Survey. 1972. Recommended methods for water-data aquisition. U.S. Government Printing Office, Washington, D.C. (Chapters iv to vi)
Mudroch, A., Azcue, J.M., Mudroch, P. 1997. Manual of Physico-Chemical Analysis of Aquatic Sediments. CRC Press, Boca Raton, FL. 287 p.
Related web links:
Lecture 13: Environmental tracers
Outline:
Defn: a substance used to mark a pathway.
Uses and examples of uses
Accidental tracers
Contaminants- heavy metals, radioisotopes, organic compounds, trash, spills
Cosmogenic radionuclides- 10Be, 14C, 26Al, 32Si, 36Cl, 39Ar
Stable isotopes
Biological debris- pollen, seeds, insect parts, bones
Sediment types
Deliberate tracers
Ionic solutions- bromides and chlorides
Fluorescent dyes- Rhodamine WT
Radioactive nuclides
Stable isotopes
Sediment particles
Textbook reading:
p. 241-248 and p. 256-260 of Chapter 13
Other reading:
p. 678-682 of Domenico, P. A. and Schwartz, F. W. 1990. Physical and Chemical Hydrogeology. John Wiley and Sons, New York.
Here is a useful reference:
Smart, P.L. and Laidlaw, I.M.S. 1977. An evaluation of some fluorescent dyes for water tracing. Water Resources Research 13:1:15-33.
Related web links:
MIDTERM
Water quality equipment demonstration
HOMEWORK #3 IS DUE TODAY AT THE BEGINNING OF CLASS
Outline:
Sampling strategies
time-dependent
space-dependent
in situ measurement devices
water sampling equipment
water analysis procedures
Textbook reading:
Other reading:
Read the information on THIS web site.
Related web links:
Assignment 4: Hydrologic and Geochemical Source Areas
Saturday field trip to Sierra Foothills Research Center.
Meet in the parking lot behind Veihmeyer Hall at 8:00 am sharp.
Be prepared to get wet and/or muddy!
Dress for potential rain.
Bring your "rite-in-the-rain" notebooks!!!
Bring a lunch and water to drink!
Homework: Due 02/22/08 (2 weeks)
Last Week or Next Week
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