Images

An alternative to uncrewed aerial systems (UAS; commonly known as 'drones'), U.S. Geological Survey (USGS) scientists use helikites equipped with cameras to collect imagery of the coastline. The pictures collected by these helium-powered kite-balloons are used to create a 3D digital elevation map of the beach.

To survey the bathymetry off of the Pea Island DUNEX site WHOI investigator Peter Traykovski prepares to run into the surf with the ASV nicknamed "Robo Turtle" while USGS investigator Chris Sherwood handles the remote controller.

The US Army Corps of Engineers Field Research Facility in Duck, NC has set up a variety of sensors and arrays on the beach to measure oceanographic paramters for DUNEX

The Helikite in action, being walked by WHOI scientist, Peter Traykovski, at Pea Island DUNEX site, the helium powered balloon kite is used to survey the beach and dune to produce elevation models using Structure from Motion.

Cross-shore array of poles equipped with various sensors to measure water level and other parameters at Pea Island National Wildlife Refuge. This equipment was deployed as part of the During Nearshore Event Experiment (DUNEX) in 2021. 

Looking south along a Point Aux Chenes scarped low-marsh shoreline in September 2021

A calm hazy horizon after the team pushed two boats up and over the dune to be launched from the beach on Pea Island.

This field work was conducted as part of the During Nearshore Event Experiment (DUNEX) in 2021. 

Assembling the CoastCam station, USGS researchers Jenna Brown and Meg Palmsten stake down support wires as a storm approaches the Pea Island field site.

This field work was conducted as part of the During Nearshore Event Experiment (DUNEX) in 2021. 

USGS well, located in the Point aux Chenes estuary near the marsh edge, used to collect water level data.

Starboard platform with oceanographic sensors attached, wrapped in copper tape to deter biofouling, and ready for deployment to collect turbidity, conductivity, and other parameters.

A USGS scientist collects real-time kinematic (RTK) position (elevation, latitude, and longitude) data following oceanographic sensor deployment in Point aux Chenes Bay, Mississippi.

To survey the bathymetry off of the Pea Island DUNEX site WHOI investigator Peter Traykovski, and USGS investigator, Chris Sherwood, prepare to launch the ASV into the water to measure the bathymetry of the Pea Island DUNEX site.

Point Barrow, Alaska, or Nuvuk, is the northernmost point in the United States. USGS has set up video cameras, mounted to the pole shown here, to study sediment movement and wave dynamics along this dynamic coastline.

Point Barrow, Alaska, or Nuvuk, is the northernmost point in the United States. USGS has set up video cameras, mounted to the pole shown here, to study sediment movement and wave dynamics along this dynamic coastline.

Point Barrow, Alaska, or Nuvuk, is the northernmost point in the United States. USGS has set up video cameras, mounted to the pole shown here, to study sediment movement and wave dynamics along this dynamic coastline.

Elkhorn coral (Acropora palmata) in Tres Palmas Marine Reserve, Rincón, Puerto Rico. This coral can form reef crests and cause waves to break, providing significant protection to the coast.

Coral reef in Tres Palmas Marine Reserve at Steps Beach, Rincón, Puerto Rico.

Buildings destroyed during Hurricane Maria in Rincón, Puerto Rico. Photograph taken on August 28, 2021, almost four years after the hurricane.

Coral reef restoration can yield significant flood reduction benefits. These natural defenses were damaged in the 2017 hurricanes; their recovery would reduce the risks of further storm damages to nature, people and property.

RESUMEN DEL REPORTE

Los beneficios sociales y económicos de la restauración de arrecifes de coral en Puerto Rico

PUNTOS CLAVE

La restauración de los arrecifes de coral puede producir beneficios significativos en la reducción de inundaciones. Estas defensas naturales sufrieron daños a causa de los huracanes de 2017; su recuperación reduciría riesgos adicionales a la naturaleza, las personas y propiedades causados por tormentas.