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Official Course
Description: MCCCD Approval: 6-22-04 |
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WRT258
2004 Fall – 2009 Spring |
LAB |
1 Credit(s) |
3 Period(s) |
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Surface
Water Field Techniques |
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Field
exercises to acquire surface water data and service data gathering equipment.
Safety procedures stressed. Prerequisites or
Corequisites:
WRT250 or permission of department. |
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Go to Competencies Go to Outline
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MCCCD
Official Course Competencies: |
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WRT258 2004
Fall – 2009 Spring |
Surface Water Field Techniques |
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1.
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Use specific types of gages to measure rainfall and record
data using continuous and discrete methods of data gathering. (I) |
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2.
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Record measurements of water evaporation using evaporation
pans and atmometers. (II) |
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3.
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Explain accuracy of "estimation of evaporation".
(II) |
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4.
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Describe the use of phytometers
in determining transpiration. (III) |
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5.
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Record lysimeter measurements
and groundwater fluctuation to determine levels of evapotranspiration.
(III) |
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6.
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Use infiltration and hydrograph analyses to determine
levels of infiltration. (IV) |
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7.
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Demonstrate the steps and apply the methods for
determining velocity, depth and discharge of streamflows.
(V) |
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8.
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Use and service equipment of the gaging
stations.. (V) |
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9.
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Gather field data for use in developing hydrologic models.
(V) |
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10.
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Compute run-off from streamflow
measurements. (VI) |
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11.
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Apply specific methods for determining peak discharge for streamflow. (VI) |
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12.
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Apply safety procedures during all field assignments.
(I-IV, VI) |
Go to Description Go to top of
Competencies
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MCCCD
Official Course Outline: |
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WRT258 2004
Fall – 2009 Spring |
Surface Water Field Techniques |
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I. Rainfall A. Types of gages 1. recording gages 2. buckets B. Records of rainfall-data
1. continuous 2. discrete C. Safety II. Evaporation A. Measurement of
evaporation 1. evaporation pans 2. atmometers
B. Estimation of
evaporation C. Crop consumptive use D. Safety III. Transpiration A. Determination of transpiration
- phytometer B. Evapotranspiration
1. lysimeter
measurements 2. groundwater fluctuations
IV. Infiltration A. Infiltrometers
B. Hydrograph analyses C. Safety V. Data Gathering A. Field reconnaissance B. Vegetation transects C. Cross section analysis D. Flow determination VI. Streamflow
Measurement A. Determination of stage B. Methods of velocity
measurement 1. velocity meters 2. radioactive tracers C. Velocity observation D. Determination of depth E. Discharge measurements 1. wading in streams 2. note taking 3. determination of
velocity/area 4. computation of flow 5. safety F. Gaging
stations 1. servicing equipment 2. safety G. Stage-discharge relation
H. Computation of run-off I. Indirect determinations
of peak discharge 1. identifying high water
marks 2. estimating roughness
coefficients 3. surveying J. Safety |
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