Author Archives: Antonio Rodriguez

About Antonio Rodriguez

Institute of Marine Sciences

Justin Ridge wins Walter B. Jones Award

Justin Ridge found out last week that he is one of six winners, nation wide, for excellence in coastal and marine graduate study.  “Justin Ridge, a Ph.D. student at the University of North Carolina at Chapel Hill, is using innovative … Continue reading

Posted in Uncategorized | Leave a comment

Why collect cores from a beach?

There are many reasons to collect cores from a beach.  One of the most interesting is to look back in time and see what environments used to be where the beach is today.  The core is like a time machine, … Continue reading

Posted in Uncategorized | Tagged , , , , | Leave a comment

The shoreface at Onslow Beach

The southwestern half of Onslow Beach, NC is starved of sand.  Using a side-scan sonar, we imaged peat and organic-rich sediment at the seafloor just seaward from where the waves start to break.  Offshore from that, Miocene rock is imaged … Continue reading

Posted in Uncategorized | Leave a comment

Sea-level anomalies affect beach erosion, but nobody has ever heard of them.

Sea-level anomalies are periods greater than 2 weeks when the water level at the beach is high.  They are not necessarily related to storm surge or sea-level rise, rather they are forced by changes in ocean currents.  On the US … Continue reading

Posted in Uncategorized | Tagged , , , , | Leave a comment

Restore the IMS shore: Part III

We completed the restoration project after constructing reefs with 3,500 bushels of shell and planting 2,000 bundles of  marsh grass.  It took 2.5 days with 15 people working, including students, technicians, summer researchers, and faculty. I’m really pleased with the … Continue reading

Posted in Uncategorized | Tagged , , , , | Leave a comment

Restore the IMS shore: Part II

The project involves planting a saltmarsh and an oyster reef.  The first step was applying for a CAMA permit because we need to distribute oyster-shell cultch near the shoreline.  We anticipate that oyster larvae will settle on the shell and a … Continue reading

Posted in Uncategorized | Leave a comment

Restore the IMS shore: Part I

Why does the IMS shoreline need to be restored?  Because… 1) It currently looks like this:   2) We are supposed to be stewards of the coast and we are not setting a good example with our rip-rap revetment. 3) … Continue reading

Posted in Uncategorized | Leave a comment

Oyster reefs have the potential to grow 11 cm/yr…that’s rapid!

Inter-tidal reefs grow so quickly, they should be able to keep up with any future rate of sea-level rise.  That’s good news because in the lower parts of estuaries oyster reefs need to maintain an intertidal elevation to thrive and … Continue reading

Posted in Uncategorized | Leave a comment

Beware: measuring beach erosion with 2-D profiles can yield spurious results

Why is Ethan so happy?  Well, he just published a new paper in Earth Surface Processes and Landforms entitled, “Evaluating proxies for estimating subaerial beach volume change across increasing time scales and various morphologies“.  In the paper, Ethan critically evaluates … Continue reading

Posted in Uncategorized | Leave a comment

Where do coastlines stabilize following rapid retreat?

Bayhead deltas are located where rivers flow into estuaries.  They have broad low-elevation plains that are sensitive to small increases in the rate of sea-level rise.  In the past, when sea level was rising at a rate of 1 m … Continue reading

Posted in Uncategorized | Leave a comment