Bk - Water-Mass Layer Mode; Bl - Water-Mass Layer Parameters; Table 14: Water-Mass Reference-Layer Modes - Teledyne WORKHORSE Operation Manual

May 2015
BK – Water-Mass Layer Mode
Purpose Selects the ping frequency of the water-mass layer ping
Format BKn
n = 0
Range
Default BK0
Recommended Setting. The default setting for this command is recommended for most applications.
Description BK selects how often the H-ADCP performs a water-mass layer ping while bottom track-
ing. The number of water-mass layer pings per ensemble is dependent on the BP-
command (bottom pings per ensemble) and this command setting. Use the BL-command
to set the location of the water-mass layer.
Table 14: Water-Mass Reference-Layer Modes
Command Description
BK0 Disables the water-mass layer ping.
BK1 N/A
BK2 N/A
BK3 N/A

BL - Water-Mass Layer Parameters

Purpose Sets bottom-track water-mass layer boundaries and minimum layer size.
Format BLmmm,nnnn,ffff
mmm = Minimum Layer Size (0 to 999 decimeters) [meters x 10]
Range
nnnn = Near Layer Boundary (0 to 9999 decimeters) [meters x 10]
ffff = Far Layer Boundary (0 to 9999 decimeters) [meters x 10]
Default BL160,320,480 (300 kHz), BL80,160,240 (600 kHz)
Recommended Setting. The default setting for this command is recommended for most applications.
Description The BL-command sets a water-mass layer. You can use this layer as a reference point
when the bottom is out of range or is incorrect. Water-mass layer output data are availa-
ble when both BK - Water-Mass Layer Mode and BP - Bottom-Track Pings Per Ensemble
are nonzero values, and the bottom must be at least the Minimum Layer Size + Near Lay-
er Boundary + 20% of the reported depth away from the transducer. The Far Layer
Boundary (ffff) must be less than the maximum profiling distance or the H-ADCP sends
Error Code 011.
The user-defined water-mass layer is used unless the layer comes within 20% of the water
boundary (sea floor for down-looking systems; surface for up-looking systems). As the
user-defined water-mass layer comes within 20% of the boundary (Figure 43
er compresses in size until the minimum water-mass layer size is reached. When the
boundary moves closer to the transducer (Figure 43
The water-mass layer is operational only if BP > zero and BK > zero.
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EAR-Controlled Technology Subject to Restrictions Contained on the Cover Page.
WorkHorse H-ADCP Operation Manual
), no water mass ping will be sent.
, C
), the lay-
, B