NOAA's National Ocean Service

<!DOCTYPE html> <html lang="en"> <head> <meta charset="utf-8"> <meta name="viewport" content="width=device-width, initial-scale=1.0"> <title>NOAA's National Ocean Service</title> <meta name="keywords" content="Ocean Service, ocean, coast, chart, navigation, NOAA, National Oceanic and Atmospheric Administration, sea, Pacific, Atlantic, Arctic, Antarctic, Southern Ocean, Indian Ocean, beach, oceans, seas, beaches, reef, coral, wave, waves, climate, surf, ship, ships, boat, boats, hurricane, typhoon, tsunami, cyclone, el nino, la nina"> <meta name="DC.title" content="NOAA's National Ocean Service"> <meta name="DC.description" content="In the U.S., where over half of us live along the coast and more than 78 percent of our overseas trade by volume comes and goes along our marine highways, the health of our coasts is intricately connected to the health of our nation's economy. The National Ocean Service (NOS) translates science, tools, and services into action, to address threats to coastal areas such as climate change, population growth, port congestion, and contaminants in the environment, all working towards healthy coasts and healthy economies."> <meta name="description" content="In the U.S., where over half of us live along the coast and more than 78 percent of our overseas trade by volume comes and goes along our marine highways, the health of our coasts is intricately connected to the health of our nation's economy. The National Ocean Service (NOS) translates science, tools, and services into action, to address threats to coastal areas such as climate change, population growth, port congestion, and contaminants in the environment, all working towards healthy coasts and healthy economies."> <meta name="DC.creator" content="US Department of Commerce, National Oceanic and Atmospheric Administration"> <meta name="DC.date.created" scheme="ISO8601" content="2020-06-01"> <meta name="DC.language" scheme="DCTERMS.RFC1766" content="EN-US">  <meta property="og:image" content="/apple-icon-144x144.png" /> <meta http-equiv="X-UA-Compatible" content="IE=edge"> <link href="/bs4/css/bootstrap.min.css" rel="stylesheet"> <link href="/font-awesome/css/all.css" rel="stylesheet"> <link href="/bs4/css/theme.css" rel="stylesheet"> <link href="https://fonts.googleapis.com/css?family=Source+Sans+Pro:300,400,400i,700" rel="stylesheet">    <link rel="apple-touch-icon" sizes="57x57" href="/apple-icon-57x57.png" /> <link rel="apple-touch-icon" sizes="72x72" href="/apple-icon-72x72.png" /> <link rel="apple-touch-icon" sizes="144x144" href="/apple-icon-144x144.png" /> <link rel="apple-touch-icon-precomposed" sizes="57x57" href="/apple-icon-57x57-precomposed.png" /> <link rel="apple-touch-icon-precomposed" sizes="72x72" href="/apple-icon-72x72-precomposed.png" /> <link rel="apple-touch-icon-precomposed" sizes="144x144" href="/apple-icon-144x144-precomposed.png" /> <link rel="shortcut icon" href="/favicon.ico">  <style> .jumbotron-home-banner { color: white; background-image: linear-gradient(to top, rgba(245, 246, 252, 0.2), rgba(0, 0, 0, 0.9)), url('/bs4/img/homepage-backgrounds/mbnms-1200.jpg'); /* for hurricanes, use image from current hurricane as bg image, which you can get from NESDIS*/ background-position: top center; background-repeat: no-repeat; background-size: cover; height: 65vh; } </style> </head> <body id="home"> <header> <div class="usa-banner"> <small> <p class="text-center"> <img class="flag" src="/bs4/img/flag.png" alt="U.S. flag"> An official website of the United States government. <br class="d-md-none"> <a data-toggle="collapse" href="#collapse-usa" role="button" aria-expanded="false" aria-controls="collapseExample">Here's how you know we're official. </a> </p> </small> <div class="collapse pb-3" id="collapse-usa"> <div class="card-deck mx-5 mt-3"> <div class="card border-primary mb-4"> <div class="row no-gutters"> <div class="col-md-12"> <div class="card-body"> <h5 class="card-title small text-uppercase"><svg id="Layer_2" data-name="Layer 2" xmlns="http://www.w3.org/2000/svg" viewBox="0 0 60 55" width="30" height="25"><defs><style>.cls-3{fill:#007faa;}.cls-4{fill:none;stroke:#046b99;stroke-miterlimit:10;}</style></defs><title>dot gov icon</title><path class="cls-3" d="M36.5,20.91v1.36H35.15a0.71,0.71,0,0,1-.73.68H18.23a0.71,0.71,0,0,1-.73-0.68H16.14V20.91l10.18-4.07Zm0,13.57v1.36H16.14V34.48a0.71,0.71,0,0,1,.73-0.68h18.9A0.71,0.71,0,0,1,36.5,34.48ZM21.57,23.62v8.14h1.36V23.62h2.71v8.14H27V23.62h2.71v8.14h1.36V23.62h2.71v8.14h0.63a0.71,0.71,0,0,1,.73.68v0.68H17.5V32.45a0.71,0.71,0,0,1,.73-0.68h0.63V23.62h2.71Z"/><circle class="cls-4" cx="27" cy="27.12" r="26"/></svg> <strong>Official websites use .gov</strong></h5> <p class="card-text"><small>A <strong>.gov</strong> website belongs to an official government organization in the United States.</small></p> </div> </div> </div> </div> <div class="card border-primary mb-4"> <div class="row no-gutters"> <div class="col-md-12"> <div class="card-body"> <h5 class="card-title small text-uppercase"><svg id="Layer_1" data-name="Layer 1" xmlns="http://www.w3.org/2000/svg" viewBox="0 0 60 55" width="30" height="25"><defs><style>.cls-1{fill:#549500;}.cls-2{fill:none;stroke:#458600;stroke-miterlimit:10;}</style></defs><title>https icon</title><path class="cls-1" d="M34.72,34.84a1.29,1.29,0,0,1-1.29,1.29H20.57a1.29,1.29,0,0,1-1.29-1.29V27.12a1.29,1.29,0,0,1,1.29-1.29H21V23.26a6,6,0,0,1,12,0v2.57h0.43a1.29,1.29,0,0,1,1.29,1.29v7.72Zm-4.29-9V23.26a3.43,3.43,0,0,0-6.86,0v2.57h6.86Z"/><circle class="cls-2" cx="27" cy="27.12" r="26"/></svg> <strong>Secure websites use HTTPS</strong></h5> <p class="card-text"><small>A small lock or <strong>https://</strong> means you’ve safely connected to a .gov website. 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Credit: Patrick Stoll"> <div class="container"> <h1 class="masthead">NOAA’s National Ocean Service: Working for you!</h1> <p class="text-center masthead font-weight-bold">Get to “NOAA” us and the many services we provide</p> <div class="mt-5"></div> <div class="col text-center">   <button class="masthead text-center m-2"> <a href="/news/mar25/all-about-NOS.html">Learn more</a> </button> </div> </div> </section> </main> </div> <div class="container mt-5 mb-5"> <div class="row quicklinks">  <div class="col-lg-2 col-6"> <div class="card"> <a href="/facts/find-tides-currents.html"><img class="p-3 card-img-top quicklinks d-none d-lg-block" src="/bs4/img/tide-currents.png" alt="tides and currents icon" /></a> <div class="card-body"> <h6 class="card-title font-weight-bold text-center text-uppercase"><a href="/facts/find-tides-currents.html">tides and currents</a></h6> </div> </div> </div> <div class="col-lg-2 col-6"> <div class="card"><a href="/facts/find-charts.html"><img class="p-3 card-img-top quicklinks d-none d-lg-block" src="/bs4/img/chart.png" alt="nautical chart icon" /></a> <div class="card-body"> <h6 class="card-title font-weight-bold text-center text-uppercase"><a href="/facts/find-charts.html">nautical charts</a></h6> </div> </div> </div> <div class="col-lg-2 col-6"> <div class="card"> <a href="/profiles/"><img class="p-3 card-img-top quicklinks d-none d-lg-block" src="/bs4/img/profiles.png" alt="double click icon" /></a> <div class="card-body"> <h6 class="card-title font-weight-bold text-center text-uppercase"> <a href="/profiles/">career profiles</a></h6> </div> </div> </div>  <div class="col-lg-2 col-6"> <div class="card"> <a href="/hazards/hab/"><img class="p-3 card-img-top quicklinks d-none d-lg-block" src="/bs4/img/eco-forecast.png" alt="sun and ocean icon" /></a> <div class="card-body"> <h6 class="card-title font-weight-bold text-center text-uppercase"> <a href="/hazards/hab/">harmful algal blooms</a></h6> </div> </div> </div> <div class="col-lg-2 col-6"> <div class="card"> <a href="/hazards/sealevelrise/"><img class="p-3 card-img-top quicklinks d-none d-lg-block" src="/bs4/img/sealevelrise-icon.png" alt="water with house icon" /></a> <div class="card-body"> <h6 class="card-title font-weight-bold text-center text-uppercase"> <a href="/hazards/sealevelrise/">sea level<br> rise</a></h6> </div> </div> </div>     <div class="col-lg-2 col-6"> <div class="card"> <a href="/education/"><img class="p-3 card-img-top quicklinks d-none d-lg-block" src="/bs4/img/edu-icon.png" alt="two kids icon" /></a> <div class="card-body"> <h6 class="card-title font-weight-bold text-center text-uppercase"> <a href="/education/">Education<br> Resources</a></h6> </div> </div> </div> </div> </div> <div class="container"> <div class="row"> <div class="card-deck mb-5"> <div class="card card-highlight mb-5"> <a href="/news/feb25/dca-crash-response.html"><img class="card-img" src="/news/feb25/uncrewed-surface-vessel-640.jpg" alt="An uncrewed NOAA surface vessel on the Potomac surveying the river bed for debris. Credit: John Gray/NOAA."></a> <div class="card-body"> <h5 class="card-title"><a href="/news/feb25/dca-crash-response.html"><strong>Experts, technology support DCA aircraft collision recovery efforts</strong></a></h5> <p class="card-text">In the wake of the aircraft collision over the Potomac River near Ronald Reagan Washington National Airport (DCA), NOAA’s National Ocean Service activated response teams to support response and recovery efforts. Tragically, the incident claimed all 67 lives aboard the two aircraft and created significant recovery and salvage obstacles due to the frigid waters and complex wreckage field. </p> </div> <div class="card-footer"> <small class="text-muted text-uppercase">Response and Recovery</small></div> </div> <div class="card card-highlight mb-5"> <a href="/news/jan25/hudson-river-ports-navigation.html"><img class="card-img" src="/news/jan25/iona-passport-thumbnail.jpg" alt="New data for improved navigation in the upper Hudson River"></a> <div class="card-body"> <h5 class="card-title"><a href="/news/jan25/hudson-river-ports-navigation.html"><strong>New data for improved navigation in the upper Hudson River</strong></a></h5> <p class="card-text">Navigating New York waterways just got a bit easier. The Hudson River Estuary Physical Oceanographic Real-time System (PORTS®) system delivers real-time oceanographic and meteorological observations that can improve maritime safety and inform coastal resource management in the region. Commercial mariners, recreational boaters, resource managers, and coastal planners can use the online tool to access real-time water level data from Sleepy Hollow to Troy, New York.</p> </div> <div class="card-footer"> <small class="text-muted text-uppercase">tides and currents</small></div> </div>  <div class="card card-highlight mb-5"> <a href="/news/dec24/teek-tom-new-series.html"><img class="card-img" src="/news/dec24/teek-tom-card.jpg" class="figure-img img-fluid" alt="Teek and Tom"></a> <div class="card-body"> <h5 class="card-title"><a href="/news/dec24/teek-tom-new-series.html"><strong>Explore planet Earth with Teek and Tom!</strong></a></h5> <p class="card-text">Meet Teek and Tom! In NOAA’s new five-part animated science series: “Teek and Tom Explore Planet Earth,” an intrepid student explorer Teek from planet Queloz teams up with NOAA climate scientist Tom Di Liberto to explore the weather and climate of planet Earth.</p> </div> <div class="card-footer"> <small class="text-muted text-uppercase">education</small> </div> </div> </div> <div class="col-md-9 mt-0"> <div class="card border-primary mb-4"> <div class="row no-gutters"> <div class="col-md-4"> <a href="/aa-updates/advancements-mcwl-data.html"> <img class="card-img pt-4" src="/aa-updates/aa-nicole-960.jpg" class="figure-img img-fluid" alt="Nicole LeBoeuf, NOS assistant administrator"></a> </div> <div class="col-md-8"> <div class="card-body"> <h5 class="card-title"><a href="/aa-updates/advancements-mcwl-data.html"><strong>Advancements in modeled coastal water level data</strong></a></h5> <p class="card-text">Nicole LeBoeuf, NOS assistant administrator, highlights how the recent release of the Coastal Ocean Reanalysis, or CORA, closes the gap between NOAA tide stations, allowing coastal communities to better understand and make informed decisions about their flood risks.</p> </div> </div> </div> </div> <div class="card border-primary mb-4"> <div class="row no-gutters"> <div class="col-md-4"> <a href="/news/jan25/NOS-releases-first-modeled-dataset.html"> <img class="card-img pt-4" src="/news/jan25/cora-coastline.jpg" class="figure-img img-fluid" alt="This image from CORA captures historical maximum water levels for the entire South Carolina coastline. Water-level observations were previously only available from one location, a tide gauge represented by the blue star in the image. The CORA dataset fills gaps in water level observations between tide stations providing historical water levels at each of the red, orange, and yellow dots, spaced every 500 meters along the coast. Credit: NOAA"></a> </div> <div class="col-md-8"> <div class="card-body"> <h5 class="card-title"><a href="/news/jan25/NOS-releases-first-modeled-dataset.html"><strong>Explore the first modeled water level and wave dataset</strong></a></h5> <p class="card-text">Imagine your community is located along a rural part of the South Carolina coast and you’re trying to plan for future coastal flooding. Planning like this often starts with understanding historic changes in water levels and flood risks in your community. To aid in this understanding, NOS launched the Coastal Ocean Reanalysis, the first comprehensive modeled dataset for the Atlantic, Gulf of America, and Caribbean coasts. </p> </div> </div> </div> </div> <div class="card border-primary mb-4"> <div class="row no-gutters"> <div class="col-md-4"> <a href="https://sanctuaries.noaa.gov/news/2025/noaa-announces-papahanaumokuakea-national-marine-sanctuary.html"> <img class="card-img pt-4" src="/news/sanctuaries/green-sea-turtle-960.jpg" class="figure-img img-fluid" alt="A honu (Chelonia mydas) at Manawai (Pearl and Hermes Atoll)."></a> </div> <div class="col-md-8"> <div class="card-body"> <h5 class="card-title"><a href="https://sanctuaries.noaa.gov/news/2025/noaa-announces-papahanaumokuakea-national-marine-sanctuary.html"><strong>NOAA announces Papahānaumokuākea National Marine Sanctuary</strong></a></h5> <p class="card-text">NOAA has announced its decision to designate Papahānaumokuākea National Marine Sanctuary, a 582,570 square-mile area in the Pacific Ocean that is two times the size of Texas. The sanctuary is within the existing Papahānaumokuākea Marine National Monument, and provides additional protections and management tools to strengthen conservation of the marine areas of the monument.</p> </div> </div> </div> </div> <div class="card border-primary mb-4"> <div class="row no-gutters"> <div class="col-md-4"> <a href="/news/jan25/40-million-recovered-from-polluters.html"> <img class="card-img pt-4" src="/news/jan25/urban-waterfront.JPG" alt="Restored habitat along the Lower Duwamish River"></a> </div> <div class="col-md-8"> <div class="card-body"> <h5 class="card-title"><a href="/news/jan25/40-million-recovered-from-polluters.html"><strong>$40 million recovered for restoration in three states</strong></a></h5> <p class="card-text">Good news for a new year! NOS and partners recovered $40 million from polluters in 2024 that will fund restoration of waterways and their habitats following oil spill and industrial pollution incidents. These restoration efforts will benefit fish, wildlife, and communities disproportionately impacted by pollution.</p> </div> </div> </div> </div>   </div> <div class="col-md-3">  <div class="card card-highlight mb-5 mt-5 bg-light"> <div class="card-body p-3">  <div class="pt-2"></div> <a href="/aa-updates/"> <button type="button" class="btn btn-primary w-100 text-center">NOS Assistant Administrator Updates</button> </a> <div class="pb-3"></div> <a href="https://coast.noaa.gov/hurricanes/#map=4/32/-80"> <button type="button" class="btn btn-primary w-100 text-center">Historical Hurricane Tracks</button> </a> <div class="pb-3"></div> <a href="https://tidesandcurrents.noaa.gov/inundationdb/"> <button type="button" class="btn btn-primary w-100 text-center">Coastal Inundation Dashboard</button> </a> <div class="pb-3"></div> <a href="/hazards/sealevelrise/"> <button type="button" class="btn btn-primary w-100 text-center">Sea Level Rise</button> </a> <div class="pb-3"></div> <a href="https://sanctuaries.noaa.gov/management/designations.html"> <button type="button" class="btn btn-primary w-100 text-center">National Marine Sanctuaries: Designations in Progress</button> </a>  <div class="pb-5"></div> <h5 class="card-title">Around the <strong>Ocean Service</strong></h5> <ul class="list-group list-group-flush"> <li class="list-group-item mb-3"><small><a href="https://nauticalcharts.noaa.gov/updates/coast-survey-responds-to-the-d-c-midair-collision-a-timeline/"> Coast Survey responds to the D.C. midair collision: a timeline</a></small> <br> <small class="text-muted text-uppercase text-center">response and recovery</small> </li> <li class="list-group-item mb-3"><small><a href="https://coastalscience.noaa.gov/news/shoreline-stabilization-long-term-protection-chesapeake-bay/"> Combination of shoreline stabilization approaches offers best long-term protection in Chesapeake Bay</a></small> <br> <small class="text-muted text-uppercase text-center">coastal science</small> </li> <li class="list-group-item mb-3"><small><a href="https://sanctuaries.noaa.gov/news/2025/mooring-buoys.html"> Buoy Team helps boaters safely enjoy Florida sanctuary waters</a></small> <br> <small class="text-muted text-uppercase text-center">sanctuaries</small> </li> <li class="list-group-item mb-3"><small><a href="https://coastalscience.noaa.gov/news/hab-noaa-fact-sheet/"> Harmful Algal Blooms: NOAA State of the Science Fact Sheet</a></small> <br> <small class="text-muted text-uppercase text-center">coastal science</small> </li> </ul> </div> </div> </div> </div> </div>     <footer role="contentinfo"> <a href="#" id="scroll-to-top"><img src="/bs4/img/Scroll-To-Top_Icon@2x_b.png" alt="scroll to top arrow icon"></a> <div id="footer-social"> <div class="col-12 pt-3" style="background-color: #ccc;"> <h5 class="sr-only"> Feedback</h5> <ul class="nav list-unstyled text-small justify-content-center pb-3">  <li class="nav-item m-1"> <a href="/contact.html" class="btn btn-light btn-lg" role="button" aria-pressed="true">Contact Us</a></li> <li class="nav-item m-1"> <a href="/contact.html#feedback" class="btn btn-light btn-lg" role="button" aria-pressed="true">Report an error</a></li> </ul> </div> <div class="col-12 pt-3" style="background-color: #ccc;"> <h5 class="sr-only"> Social</h5> <ul class="nav list-unstyled text-small justify-content-center pb-3"> <li><a href="https://twitter.com/noaaocean"><img class="d-inline align-middle p-2" src="/bs4/img/x-black.png" alt="X Logo"/> </a></li> <li><a href="https://www.facebook.com/usoceangov/"><img class="d-inline align-middle p-2" src="/bs4/img/facebook-color.png" alt="Facebook Logo"/> </a></li> <li><a href="https://www.instagram.com/noaaocean/"><img class="d-inline align-middle p-2" src="/bs4/img/instagram-color.png" alt="Instagram Logo"> <//a></li> <li><a href="https://www.youtube.com/user/usoceangov"><img class="d-inline align-middle p-2" src="/bs4/img/youtube-color.png" alt="Youtube Logo"> </a></li> <li><a href="https://www.linkedin.com/company/noaa-national-ocean-service"><img class="d-inline align-middle p-2" src="/bs4/img/linkedin-color.png" alt="LinkedIn Logo"> </a></li> </ul> </div> </div> <div id="footer-main"> <div class="container pt-5 pb-5"> <div class="row"> <div align="center" class="col-lg-4 col-sm-4 col-xs-12 pb-3"> <a href="https://www.noaa.gov/"><img src="/bootstrap/img/noaa_logo_circle_72x72.svg" alt="NOAA Logo" /></a> <p class="text-center pt-2"> <em>Science. 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