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Preparing
the SonTek Hydra ADV for deployment. |
| Configuring
the ADV software before deployment. |
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Ready
for some marsh wading. |
| The
deployed ADV, exposed during low tide. |
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Steven
Traynum configures the ADV software before deployment. This
ADV data was our basis of comparison when assessing the accuracy
of current measurements recorded by a HF radar system deployed
in the same area. |
| The
CODAR RiverSonde HF radar stationed at the Baruch Institute
as part of a study assessing the feasibility of using a HF radar
system in an inter-tidal environment. |
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These
are clod cards, shown after deployment. Clod cards are plaster
of Paris blocks that dissolve at a fixed rate. By measuring
the extent of of erosion during deployment, one can estimate
the shear stress near the sea bed. Thus, clod cards are a
relatively inexpensive method for measuring near-bottom flow
patterns. |
| Climbing
on board the submersible as part of the research cruise aboard
the R.V. Seward Johnson. This cruise was studying physical
and biological dynamics of the Charleston Bump, a large seafloor
protrusion off the coast near Charleston, SC. |
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This
study deployed two ADVs, shown here exposed at low tide, in
order to determine the impact of bank roughness on flow. The
left bank is a oyster bed (high roughness coefficient), whereas
the right bank is a mud flat (very low roughness coefficient). |
| During
the deployment period, we repeatedly ran boat wake trials. By
driving a boat over the sensors during high tide, we generated
a very strong flow in this system. We are interested in determining
how the roughness of the tidal creek bank (oyster bed vs. mud
flat) affects the dynamics of the flow. |
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Installing
a WERA HF Radar system on Pritchard's Island, SC. This is a
joint project between South Carolina and Georgia; a similar
radar system is installed at St. Catherine's Island, GA. At
each site, twelve receiver antennas are positioned along the
beach, along with transmitter antennaes slighter further inland.
The coverage zone spans Beaufort SC to Savannah GA and extends
150 miles (240 kilometers) offshore. This system will provide
real-time surface current measurements every 15 minutes.
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Now,
read more about these projects and others HERE |
