Geoscience Reference
In-Depth Information
line. (a) How would the relationship between
dQ
e
/
dt
and
Q
e
look like? In other words, derive
a functional relationship,
dQ
e
/
dt
=
f
(
Q
e
). (b) Determine the power
m
of the storage-discharge
equation (12.48), namely
S
=
K
n
Q
e
, which is to be used in the routing of floods through this lake
by means of the equation
Q
i
−
Q
e
=
dS
/
dt
.
12.22
Multiple choice. Indicate which of the following statements are correct. The volume (not the rate)
of direct storm runoff produced in a given watershed:
(a)
as a result of a given storm, is largely independent of the initial moisture conditions of the
surface soils;
(b)
is always the same fraction of the rainfall volume;
(c)
as a result of a given storm, is totally independent of the baseflow that occurs at the time of
the rainfall producing this event;
(d)
tends to become larger as the watershed becomes urbanized;
(e)
for engineering design purposes, is often estimated by subtracting the volume of baseflow
from the total runoff volume.
