Xylem SonTek FlowTracker2 - 8.3.2.3 Open Water

SonTek – a Xylem brand
FlowTracker2 User’s Manual (January 2019)
128
Calculation Methods assumes that the velocity on the bank is zero when the depth is
zero or against a boundary in the case of vertical bank.
Island Edge station type parameters available on the
Add Station screen consists of the following,
a) Location,
b) Depth,
c) Station Type,
d) Correction Factor,
e) Comment.
f) To select a station type,
i). Use the left or right arrow key to scroll through
the station types,
g) To add island edge station,
i). Press the Right Soft Key.
h) To CANCEL add island station,
i). Press the Left Soft Key.
Figure 8:16 - Island Edge
Station Type
Properties associated with the parameters for island edge station type are defined in
Table 8:5,
Table 8-5 - Island Edge Station Type - Properties
Parameter
Min
Max
Default
Decimals
Units
Required
Location
-1000
1000
empty
3
m or ft
Yes
Depth
0
100
empty
3
m or ft
Yes
Station Type
Island Edge
Yes
Correction Factor
-1
1
empty
2
Yes
Comment
0
250
empty
No
The Island Edge station type is normally selected after “Open Water” or “Ice” station
types. The station type after the first Island Edge is completed will be set to “Island
Edge” by default. The station type after the second Island Edge is completed will be set
to “Open Water” by default.
Open Water 8.3.2.3
The Open Water station type is used to create a station for open water conditions,
performing velocity measurements within a vertical at a station. Open Water is the main
station type that will be used during most discharge measurements and the number of
stations required is 23 stations for measurement sections wider than 5m.
The number of stations recommended based on measurement section width are
available in the following literature,
• ISO 748 – 2007, Hydrometry - Measurement of liquid flow in open channels using