HYDROMETEOROLOGY

Applications and Investigations in Earth Science (9th Edition)
9th Edition
ISBN:9780134746241
Author:Edward J. Tarbuck, Frederick K. Lutgens, Dennis G. Tasa
Publisher:Edward J. Tarbuck, Frederick K. Lutgens, Dennis G. Tasa
Chapter1: The Study Of Minerals
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HYDROMETEOROLOGY

 

1. Tables below show data of stream flow and rainfall observed for a particular watershed
with an area of approximately 9552676.06 ft². Assume a baseflow of 75 cfs.
2. With this data, generate a unit hydrograph that can be used to estimate the stream flow
for all rainfall amount.
Observed Hydrograph
Time
Hr
Gross Precipitation
in/h
Time
Hr
cfs
0-1
1.00
75
1-2
1.80
1
75
2-3
3.00
2
110
3-4
0.75
3
205
4
305
5
280
205
130
8
75
3. Determine the following:
f. Ф-index
g. Duration of effective
rainfall (duration of the
unit hydrograph)
a. Direct runoff hydrograph
b. Volume of direct runoff
c. Effective rainfall
d. Unit hydrograph
e. Volume losses
6700
Transcribed Image Text:1. Tables below show data of stream flow and rainfall observed for a particular watershed with an area of approximately 9552676.06 ft². Assume a baseflow of 75 cfs. 2. With this data, generate a unit hydrograph that can be used to estimate the stream flow for all rainfall amount. Observed Hydrograph Time Hr Gross Precipitation in/h Time Hr cfs 0-1 1.00 75 1-2 1.80 1 75 2-3 3.00 2 110 3-4 0.75 3 205 4 305 5 280 205 130 8 75 3. Determine the following: f. Ф-index g. Duration of effective rainfall (duration of the unit hydrograph) a. Direct runoff hydrograph b. Volume of direct runoff c. Effective rainfall d. Unit hydrograph e. Volume losses 6700
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