Transcript CE 374 K – Hydrology First Quiz Review Daene C. McKinney

CE 374 K – Hydrology
First Quiz Review
Daene C. McKinney
Hydrologic Systems
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Global Water Cycle
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Terminology
Some facts and figures
Hydrologic Cycle
Systems Analysis
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Watershed as a system
Transport in Hydrology
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Transport in Hydrology
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Mass, Momentum, Energy
Equivalent depth over the
watershed
Water into/out of storage
Manning’s Equation
Sensible and Latent heat
Conduction and
Convection
Lamiar and Turbulent
Velocity Profile
Radiation
dS
 I (t )  Q(t )
dt
S j  S j 1  I j  Q j
1 2 3 12
V  R Sf
n
u*
z
u( z) 
ln( )
k
z0
Atmospheric Moisture
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Tilted, rotating Earth – How it affects
radiation
Atmospheric structure and composition
Water vapor
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Vapor pressure
Partial pressure
Humidity
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Saturation Vapor Pressure
Relative and Specific Humidity
Dew Point Temperature
El Niño
e   v RvT
qv 
0.622e
P
Rh 
e
es
Precipitation
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Velocity of raindrops
Precipitation mechanisms
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Convective, Frontal , and Orographic
Isohyet
Rainfall depth and intensity
Incremental and cumulative rainfall
Areal precipitation estimates
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Arithmetic, Thiessen polygon, isohyetal
4 gD   w 

Vt 
 1
3Cd   a

Evaporation
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Terminology
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Evaporation, Transpiration, Sublimation,
Evapotranspiration
Factors influencing evaporation
Methods for estimating
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Energy Balance, Aerodynamic, Combined
Er 
Rn
lv  w
E  1.3

Er
 
Infiltration
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Porous media flow
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dF (t )
f (t ) 
dt
Q   KA
h
L
t
F (t )   f ( )d
0
Terminology
f (t )  f c  ( f 0  f c )e kt
 Zones of saturation, aquifer types, aquifer
properties, capillarity
1
f
(
t
)

S t  Kt
 Darcy’s law
2
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Infiltration
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Rate and cumulative infiltration
Models
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Horton, Phillips, Green-Ampt
 
f  K 
 F
F  Kt   f ln(1 
Time of ponding
tp K
f

 1

F
 f
)
 f
i (i  K )