The image shows a one dimensional problem where water is entering and leaving a soil column that is Z m deep, has a volumetric water content of 0 and porosity o. Water enters as precipitation P [m/day], and leaves as evaporation E [m/day] and deep drainage D [m/day]. Which of the following equations for 0, the relative water content, is a sensible water balance equation (assuming constant density) for this problem? TE S,0 D P. N

Structural Analysis
6th Edition
ISBN:9781337630931
Author:KASSIMALI, Aslam.
Publisher:KASSIMALI, Aslam.
Chapter2: Loads On Structures
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The image shows a one dimensional problem where water is entering and leaving a soil column that is Z m deep, has a
volumetric water content of 0 and porosity p. Water enters as precipitation P [m/day], and leaves as evaporation E
[m/day] and deep drainage D [m/day].
Which of the following equations for 0, the relative water content, is a sensible water balance equation (assuming
constant density) for this problem?
TE
s,0
P.
Transcribed Image Text:The image shows a one dimensional problem where water is entering and leaving a soil column that is Z m deep, has a volumetric water content of 0 and porosity p. Water enters as precipitation P [m/day], and leaves as evaporation E [m/day] and deep drainage D [m/day]. Which of the following equations for 0, the relative water content, is a sensible water balance equation (assuming constant density) for this problem? TE s,0 P.
a. de
- =P – E - D
dt
b.
de
pZ –=P- E– D
dt
O c. de
: (Р-Е-D)ф
dt
O d.
de
Z==P- E-D
— Р—
dt
ds
фZ—-Р-Е-D
dt
е.
Transcribed Image Text:a. de - =P – E - D dt b. de pZ –=P- E– D dt O c. de : (Р-Е-D)ф dt O d. de Z==P- E-D — Р— dt ds фZ—-Р-Е-D dt е.
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