SonTek/YSI
ADVField Software Manual (September 1, 2001) 54
12.2. What Am I Looking At?
After loading a data file, ViewHydra will display the following (Figure 15).
• Burst Data Time-Series Graph (top; §12.2.1)
• Sample Data Time-Series Graphs (middle & bottom; §12.2.2)
• Burst Tabular Data (upper right, but movable; §12.2.3)
• Sample Tabular Data (lower right, but movable; §12.2.4)
Notes:
(1) Use the
View Menu
(§12.3.3) to show(hide) graphs, tabular displays, tool bars, beam compo-
nents; to select graph axis variables; and to show burst/sample data on the lower graphs.
(2) Use the
Processing Menu
(§12.3.4) to perform data display editing/smoothing functions.
12.2.1. Burst Data Time-Series Graph
The Burst Data Time-Series Graph (top of screen; Figure 15) lets you view the data points of a
user-selected variable for the selected range of burst data over time. Several variables are avail-
able, of which two can be viewed at the same time – one on the left axis, one on the right axis.
Use
View|Select Top Graph Variable
(or its toolbar icon) to select the parameters to be displayed.
The variables are arranged in "tabs" in the
Select Time Series Variables
dialog box and include
the following. Note: Depending on your system’s configuration, not all tabs/variables may be
available.
• Velocity (Velocity, Velocity Standard Deviation, Speed, Direction)
• Signal (Signal Amplitude, Signal Amplitude Standard Deviation, Correlation, Correlation
Standard Deviation, Noise Level)
• Sensors (Temperature, Temperature Standard Deviation, Pressure, Pressure Standard Devia-
tion, External Pressure, External Pressure Standard Deviation)
• Compass (Heading, Heading Standard Deviation, Pitch, Pitch Standard Deviation, Roll, Roll
Standard Deviation)
• CTD (CTD Salinity, CTD Temperature, CTD Conductivity, CTD Depth)
• Ext Sensors (External Sensor 1/2/3, External Sensor 1/2/3 Standard Deviation)
• Misc (Distance from Probe to Boundary, Distance from Sampling Volume to Boundary, Bat-
tery Voltage)
Notes:
(1) Moving the burst-data time-series marker (green pointer) will set the Burst Tabular Data
(§12.2.3) to the selected burst number, and will set the displayed Sample Data Time-Series
Graphs (§12.2.2) to the range of samples contained in the selected burst.
(2) Left-axis variables are displayed using a solid line; right-axis variables are displayed using a
dashed line. The axis scale can be changed by double-clicking on the appropriate axis scale.
The left-axis variable also determines which parameters are displayed in the Burst Tabular
Data (§12.2.3) dialog box.
(3) To magnify an area of the Burst Time-Series Graph: (a) Select the Zoom-In icon from the
tool bar, (b) Click and drag your cursor from the desired starting point to the desired ending
point on the Burst Time-Series Graph, (c) Release the cursor. You can now use the horizontal
scroll bar to view data to the left and right of the current position. To return the graph to its
full size, select the Zoom-Out icon from the tool bar.
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