Near Shore - High Resolution
[II-B1]
I want to make measurements in the ocean. [change]
My area of interest is the near shore... [change]
...and involves high-resolution measurements. [change]
Our Acoustic Doppler
Velocimeter (ADV) family of instruments provides the highest-resolution measurements.
There are three types of ADVs: the MicroADV,
the ADV, and the ADVOcean Probe. Choosing among
these three is really a tradeoff between maximum resolution and maximum ruggedness.
The MicroADV boasts the best
resolution in space and time, but the ADVOcean Probe is far more rugged
for near-shore and surf zone applications. The ADVOcean Probe can sample
at a maximum of 25 Hz, has a sampling volume of just over two cubic centimeters, and
is extremely rugged. On the other hand, the MicroADV has a sampling
volume of less than one-tenth of a cubic centimeter, can sample at rates as high as 50 Hz,
and can operate in very shallow water (<10 cm), but is more susceptible to damage.
The 10-MHz ADV, particularly the field ruggedized version, is
intermediate in resolution and ruggedness.
Any of the ADV type instruments can be deployed for
real-time operation using a cable, or autonomously as part of our Hydra package. ADVs can also be equipped
with a variety of external sensors, including compass/tilt, pressure (three types of
sensor possibilities), turbidity sensors, conductivity sensors, etc.
