Class 7, Fri, feb 16, 2018/// paper given plus all lec 4-5

Question 1

Water budgeting

Answer 1

Governing equation behind water budgeting is the conservation of mass which is known as the continuity equation and iis derived from reynolds transport theorem

Question 2

Continuity equation we are going to use is

Answer 2

Continuous form:
ds/dt= I(t)-Q(t)

Discrete form:
Sj = So + Summation (i=1 to i=j) (Ii -Qi)

if we have a steady state
dS/dt=.0

Question 3

also the water budget for a watershed for a given for time can be expressed as :

Answer 3

Delta(S)= P-R-G-E-T
P is precipitation
R is runoff
G is groundwater
E is evaporation 
T is transpiration
and Del(S) is the change in storage for a given delta(T)

Question 4

Solve examle 1-4 and 1-5

Answer 4

true