Sentinel V SC and RT Operation Manual
September
2017
EAR-Controlled Technology Subject to Restrictions Contained on the Cover Page.
Page 59
Step 3: Profiling
Use the
Step 3: Profiling
panel to change how the water profile will be set up during the deployment. The
Sentinel V ADCP can have two different water profiles. Each water profile can be set independently. If
there is one water profile, the
Add profile
button appears. If there are two water profiles, click the white X (
) to delete the second water profile. Click Save on the
Step 1 Set sampling strategy
panel
to save the set-
tings or Cancel to return to the previous settings.
Select profile
– Use the drop-down list to select a water profile from the list. Each water profile can use a
default setup or select a predefined profile. If you make changes to any of the settings, the name of the
profile will change to Custom.
If the data file is collected with two water profiles, Profile 1 and Profile 2 are considered compatible for
merging when post-processing the data file with the Velocity software if the following are all true:
•
Number of cells matches
•
Cell size matches
•
Blank matches
•
Both either have vertical beam OR both do not have vertical beam selected
•
Bandwidth must be the same for both profiles
The
Standard deviation
shows the expected standard deviation of the velocity data stored in
each ensemble being collected by the Sentinel V ADCP. Most users will want to minimize this
value so that they obtain the best data possible (i.e. data containing the least amount of
noise). Standard deviation is dependent on
and the
Time between ensembles
– Select a time between ensembles from the drop down list. Time is based on the
start of one ensemble to the start of the next ensemble. When two water profiles are used, set the
Offset
between Profile groups
time to avoid ping collisions.
Time between ensembles applies to both water profiles.
Range
– Select the range to measure. The default value shown in Table 3 is based on typical range possible
based on the system frequency. The actual maximum range is dependent on the absorption in the water
