Question

Water from 620-hectare reservoir was being pumped with a constant rate for 30 days. Compute the constant pumping rate (in cubic meter per day) if during the 30 days period reservoir level dropped 0.65 meter despite an average upstream inflow of 230,000 m3/day. During the 30 days period, the total seepage loss was 3.0 cm, the total precipitation was 16.0 cm, and the total evaporation was 10.5 cm. (1 hectare = 10,000 m2).

Answer #1

For a given month (30 days): a 20 Km2 lake has 5 m3/s inflow, 4
m3/sec outflow, and total storage increases of 1.2X106 m3. Monthly
precipitation on the lake is 12 mm. Assuming the infiltration is
insignificant for the lake, determine the evaporation loss in (mm)
from the lake.
Part. 2 (2.5 marks): The evaporation rate from the surface of a 160
m2 lake is 436 m/day. Estimate the depth change in the lake in feet
during a 1-year period...

A lake has a surface area of 2 km2. During the month
of June (30-day), the inflow rate (I) to the lake was 1.0
m3/s and outflow rate (Q) from the lake was 0.75
m3/s. During this period, the total amount of
precipitation (P) on the lake surface was 10 cm, the total amount
of evaporation (E) was measured at a nearby pan as 15 cm. (The pan
coefficient is 0.7)
Calculate the storage change (ΔS) for this period in...

ADVERTISEMENT

Get Answers For Free

Most questions answered within 1 hours.

ADVERTISEMENT

asked 20 minutes ago

asked 22 minutes ago

asked 33 minutes ago

asked 1 hour ago

asked 1 hour ago

asked 1 hour ago

asked 1 hour ago

asked 1 hour ago

asked 1 hour ago

asked 2 hours ago

asked 2 hours ago

asked 2 hours ago