Maracoos - Mid-Atlantic Regional Association Coastal Ocean Observing System

Maracoos - Mid-Atlantic Regional Association Coastal Ocean Observing System Follow on Twitter and LinkedIn! Integrated Ocean Observing System (IOOS).

From Cape Cod to Cape Hatteras, MARACOOS powers understanding and prediction of the Mid-Atlantic ocean and coasts, enabling better decisions through better data. MARACOOS is the Mid-Atlantic Regional Association Coastal Ocean Observing System, covering the region from Cape Cod, MA to Cape Hatteras, NC for U.S.

Discover Marge’s story and uncover how the regional monitoring network for HABs is making waves—find all the details in ...
08/27/2026

Discover Marge’s story and uncover how the regional monitoring network for HABs is making waves—find all the details in our latest article here: https://bit.ly/4zNcbpc

The MERHAB project is led by Dr. Margaret Mulholland, Old Dominion University. Co-investigators are: Dr. Sophie Clayton and Dr. Eileen Hofmann, Old Dominion University; Dr. Pierre St-Laurent, Dr. Marjy Friedrichs, Dr. Kimberly Reece, Dr. William Reay and Dr. Susanna Musick, Virginia Institute of Marine Science; Mary Ford, Mid-Atlantic Regional Association Coastal Ocean Observing System, and Michelle Tomlinson and Jennifer Maucher Fuquay, NOAA NCCOS.

Partners that will continue to aid in transitioning project results to management entities include the Virginia Departments of Health and Environmental Quality, Maryland Department of Natural Resources, Chesapeake Bay Monitoring Program, NOAA NCCOS, MARACOOS, and Hampton Roads Sanitation District.

NOAA Coastal Ocean Science

08/25/2026

Waves can cause serious damage along the shore, especially as sea levels rise. Erosion can shape the shoreline in many different ways. Enjoy this graphic from EduSphere Academy! What kinds of formations do you notice near you?

Find wave data like height and speed on OceansMap! https://oceansmap.maracoos.org/

Swipe to learn more about gliders and check out OceansMap if you want to track hurricane gliders and ocean temperatures!
08/20/2026

Swipe to learn more about gliders and check out OceansMap if you want to track hurricane gliders and ocean temperatures!

08/19/2026

It's hard to believe August is here already. There are just a few days left to enjoy surfing before school starts again. If learning to surf is on your summer bucket list, start by getting familiar with the different wave zones, especially the breaker zone. Surf enthusiasts near Bethany Beach, Delaware can check out the MARACOOS surfing conditions dashboard. Enjoy the waves!

Check out the dashboard: https://bit.ly/4zs5YyE

It's now easier to explore WebCOOS cameras in your region and/or in your state! We had a little fun with today exploring...
08/13/2026

It's now easier to explore WebCOOS cameras in your region and/or in your state!

We had a little fun with today exploring all the WebCOOS cameras in various IOOS regions! Check out all the cameras by visiting https://webcoos.org/cameras

📸 MARACOOS Norrie Point Camera

Scientists are monitoring an active bloom, margalefidinium polykrikoides, also referred to as Marg, on the Lower Chesape...
08/06/2026

Scientists are monitoring an active bloom, margalefidinium polykrikoides, also referred to as Marg, on the Lower Chesapeake Bay.

Please report discolored water to the Virginia Department of Health HAB hotline at 1-888-238-6154 or report online here: https://bit.ly/4c8zDTp

Photo credit for current bloom: MARACOOS Partner, Donglai Gong, PhD, VIMS

08/04/2026

MARACOOS collaborates with researchers and state and federal agencies to help the Mid-Atlantic region improve its ability to monitor, predict, and respond to HAB events. Among our projects are the National Harmful Algal Bloom Observing Network (NHABON), Modeling and Forecasting with VIMS via the Chesapeake Bay Environmental Forecast System, and the HAB Monitoring and Forecast System for Margalefidinium and Alexandrium Blooms in cooperation with the National Centers for Coastal Ocean Science. For more information about each project, visit https://bit.ly/4fQ1DMJ

Virginia Institute of Marine Science
NOAA Coastal Ocean Science

The University of Maryland Hydronet's new water-level sensor at Breezy Point Beach and Campground in Calvert County, MD ...
08/03/2026

The University of Maryland Hydronet's new water-level sensor at Breezy Point Beach and Campground in Calvert County, MD is a great example of what regional partnerships can accomplish. Through the collaboration of MARACOOS, our partners at University of Maryland, and Calvert County Government Division of Emergency Management, this station brings real-time water-level data to a community that has faced flood risk without nearby monitoring.

Excerpt from the story:

Looking beyond emergency response, Tim Canty said maintaining the network over many years will allow researchers and communities to better understand long-term trends in sea level rise, land subsidence and changing flood patterns. He said that the project’s primary mission is helping communities make informed decisions.

“The data doesn’t mean a thing if it’s just sitting on someone’s computer somewhere. What’s important is making sure anyone who needs this data can access it quickly and reliably, but it’s also in a form that communities can use, such that you don’t need a PhD to see what’s going on,” Canty said. “We’re doing this because we want it to matter to people.”

Read the full story from The BayNet: https://thebaynet.com/university-of-maryland-expands-hydronet-flood-monitoring-across-the-chesapeake-to-strengthen-coastal-resilience/

Shark Week is here, and our data as well as neighboring RA's NERACOOS and SECOORA help support shark research!
07/30/2026

Shark Week is here, and our data as well as neighboring RA's NERACOOS and SECOORA help support shark research!

07/28/2026

With rain expected this week in the Mid-Atlantic, runoff may impact water quality and could harm our ecosystem and the industries that depend on it. Take a look at the Connecticut Sea Grant visual to see how pollutants reach our waterways. Before you head out on the water, you can use our OceanMaps insight dashboard to check for water quality parameters, including harmful algal blooms.

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