A
accuracy
acoustic flowmeter 11-13,
14-38
current meters 14-12
definition 3-1
long-throated
flumes
8-17, 8-34
Parshall flumes 8-42
weirs 7-1
acoustic flowmeters 11-1, 14-37
ADCP (acoustic Doppler current profiler) 10-2
ADV/AVM (acoustic Doppler velocimeter) 10-2,
11-10
clamp-on style 11-5
cross-correlation 11-15
Doppler 11-13
open channel 11-9
transit-time 11-1
adjustable weir 7-31
aeration of weirs 7-18
approach conditions
channel 5-2
closed-conduit devices
14-9
flow 5-2,
9-18
flumes 8-9
velocity 5-3
automated data collection 4-5, 4-6,
6-1, 10-36
B
benchmark
locating gage datum 6-1,
10-8
boat-assisted measurements
ADCP 10-2
current metering 10-8,
10-9
broad-crested
weirs 2-17,
7-2, 7-30, 8-18
bubble gage 8-14
C
cableways 10-6,
10-10
calibration
definition 3-3
devices 3-9
California pipe method 14-23
chain gage 6-2
check structures 9-19
chemical/tracer methods 12-1
Chezy 2-26
chordal paths (acoustic flowmeters) 11-3
Cipoletti weir 7-21
discharge tables Table
A7-5
circular conduits, partly full 8-37
coefficient
contraction 2-8,
2-24
discharge 2-21,
7-10, 14-10
general 2-4
compound weir 7-23
Cone equation 7-20
constant-head orifice turnout (CHO) 9-10
discharge tables A9-4, A9-5, A9-6
construction
of devices 7-39,
8-11
continuity
principle 2-6
equation 2-6
contracted weir 7-9, 7-16
discharge table A7-2
contraction
full 7-4
partial 7-4
conversion factors Con-1
crest 7-4
critical flow 2-16
current meter 10-1
acoustic 10-2,
11-1
Dumas 10-20
electromagnetic 10-2
Haskell 10-20
Hoff 10-20
Neyrpic 10-20
Price AA 10-12
pygmy 10-16
cutthroat flume 8-42
D
Darcy-Weisbach friction factor 2-26
data logger 6-11
datum 6-1, 6-21
depth measurement 2-2, 3-14,
5-18, 6-1, 8-12
device selection 4-1
diametral path (acoustic flowmeter) 11-2
differential head 14-1
digital recorders 6-8
dilution method 12-11
Doppler 11-13
Dumas meter 10-20
dye dilution method 12-1
E
electromagnetic flowmeter 14-15
energy
equation 2-10, 2-12
principle 2-10
error 3-1
random 3-3
systematic 3-2
F
float
method 13-6
well 6-11
flow nozzle 14-5
flume 8-1
long-throated 8-2,
8-17
broad-crested weir 7-2,
8-2
ramp 8-18
Replogle 8-18
short-throated 8-2
cutthroat (Montana) 8-4
H-flumes 8-4
Palmer-Bowles 8-6
Parshall 8-45
Francis equation 7-16
freeboard 8-36
free flow 7-6
friction loss 2-25
Froude number 2-15
G
gaging
structure 10-3,
10-3
gate 13-1
meter 9-23
overshot 7-32
radial 9-20
Gibson method (pressure-time) 14-36
H
Haskell meter 10-20
head
definition 2-2
loss 8-57
measurement 2-2,
3-14, 5-18, 8-12,
9-18
velocity 2-7
Hoff meter 10-20
hook gage 6-15
hydraulic grade line 2-22
hydraulic radius 2-13
hysteresis
definition 3-7
Parshall flume discharge 8-8,
8-20
I
ice 6-21, 10-8,
10-24
installation
devices 7-7,
8-8, 8-11
poor 5-12
J
K
Kindsvater-Carter equation 7-9
Kindsvater-Shen equation 7-21
L
linearity 3-6, 3-13
long-throated flumes 8-17
circular conduits 8-40
design 8-22
lined channels 8-29
unlined channels 8-32
M
magnetic (electromagnetic) flowmeter 14-15
maintenance 4-7
Mannings n (friction factor) 2-26,
2-27
meter gates 9-23
midsection method 10-31
modular limit 8-8, 8-35
Montana flume 8-42
N
nappe 7-4
Neyrpic meter 10-20
nonstandard device 5-1
O
open channel flow 2-1
optical methods 10-1, 10-2
orifice 2-8, 2-22,
14-6
tap locations 14-8
Ott meter 10-20, 10-21
overshot gate 7-32
P
Palmer-Bowles flume 8-6
Parshall flume 8-40
discharge of, Tables A8-7 to A8-20
effect of submergence 8-46 to 8-57
partially contracted weirs 7-4, 7-7
percent full-scale 3-6
percent registration 3-19
piezometer 5-13, 14-18
pipeline 2-2
pitot tube 13-4, 14-18
point gage 8-14
pressure-time method 14-36
Price meter 10-12
primary element 3-1
propeller meter 13-1, 14-11
Neyrpic 10-20
Price 10-12
pygmy 10-16
Purdue method 14-27
pygmy meter 10-16
Q
R
ramp flume 8-18
random errors 3-3
range 3-7
rating curves, rated sections 10-37, 10-38
recorder
analog-graphical 6-4
data logger 6-11
digital 6-8
water stage 6-11
rectangular flume 8-33
discharge of 8-34
repeatability 3-7
Reynolds number 2-26, 14-10
rotameter 2-6, 14-17
roughness 2-26, 2-27
S
Salt-velocity method 12-5
secondary
current 11-7
element 3-1
sediment 4-6, 4-14
selection of devices 4-1, 4-9,
4-15
sensitivity 3-7
sharp-crested weir 2-8, 7-2,
7-7 and 7-7
short-crested triangular weir 7-35
Simpson's parabolic rule 10-31
siphon 14-30
sluice gate 13-3
staff gage 6-1, 7-6,
8-13
stage 6-1 and 6-1
and 6-1
standard deviation estimate 3-4
standard device 5-1
Standards of measurement 1-3, 3-7
stilling well 6-11, 8-15
subcritical flow 2-16, 8-18,
8-21
submerged orifice 9-1
discharge of 9-5,
Table A9-2
submergence
flumes 8-7
weirs 7-6,
7-36
suppressed weir 7-18
discharge of 7-19,
Table A7-3
systematic error 3-2
T
top-setting rod 10-22
totalized flow 2-6
tracers 12-1
trajectory methods 14-25
transit-time flowmeters 11-1, 11-4
trapezoidal weir (Cipoletti weir) 7-21, 7-22
discharge of Table A7-5
triangular weir (V-notch) 7-20
discharge of Table A7-4
turbulence 5-4
turnout 4-14, 7-24
CHO turnout 9-10
U
ultrasonic flowmeter (acoustic) 11-1
uncertainty 3-2
V
V-notch weir 7-13
discharge of contracted
7-20,
Table A7-4
variable area meters (rotameter) 14-17
velocity
determination of the
mean
10-26
velocity head 2-7, 7-4
velocity of approach 5-6, 7-6,
7-36, 9-9
venturi meter 2-20, 2-23,
14-3
vortex flowmeter 14-18
W
wading rod 10-21
water management 1-2, 2-1
waves 2-28, 6-13
wave suppressor 5-6-5-8
weeds 5-22, 9-17
weir
aeration 7-18
broad-crested 2-17
construction and
installation
7-39
maintenance 7-42
sharp-crested 2-8
weir box 7-24
weir stick 13-5
wetted perimeter 2-13, 2-25
wire weight gage 6-3
X
Y
Z