What is a dead zone?
Dead zone' is a more common term for hypoxia, which refers to a reduced level of oxygen in the water| oceanservice.noaa.gov
Dead zone' is a more common term for hypoxia, which refers to a reduced level of oxygen in the water| oceanservice.noaa.gov
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...| oceanservice.noaa.gov
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A tropical cyclone is a rotating low-pressure weather system that has organized thunderstorms but no fronts (a boundary separating two air masses of different densities). Tropical cyclones with maximum sustained surface winds of less than 39 miles per hour (mph) are called tropical depressions. Those with maximum sustained winds of 39 mph or higher are called tropical storms.| oceanservice.noaa.gov
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...| oceanservice.noaa.gov
a collection of ocean and coastal hazards topical pages from NOAA| oceanservice.noaa.gov
Marine debris is defined as any persistent solid material that is manufactured or processed and directly or indirectly, intentionally or unintentionally, disposed of or abandoned into the marine environment or the Great Lakes. There is no part of the world left untouched by debris and its impacts. It is one of the most widespread pollution problems facing the world's ocean and waterways.| oceanservice.noaa.gov
Nutrient pollution is the process where too many nutrients, mainly nitrogen and phosphorus, are added to bodies of water and can act like fertilizer, causing excessive growth of algae| oceanservice.noaa.gov
A team of NOAA and university sea level rise experts completed a study verifying the accuracy of NOAA’s modeling of historical coastal water level information for areas along the Atlantic and Caribbean coasts and the Gulf of Mexico.| oceanservice.noaa.gov
A perigean spring tide occurs when the moon is either new or full and closest to Earth.| oceanservice.noaa.gov
Plastic is everywhere: In your home, your office, your school — and your ocean. Among the top 10 kinds of trash picked up during the 2017 International Coastal Cleanup were food wrappers, beverage bottles, grocery bags, straws, and take out containers, all made of plastic.| oceanservice.noaa.gov
Sea water has been defined as a weak solution of almost everything. Ocean water is a complex solution of mineral salts and of decayed biologic matter that results from the teeming life in the seas.| oceanservice.noaa.gov
Microplastics are small plastic pieces less than five millimeters long which can be harmful to our ocean and aquatic life.| oceanservice.noaa.gov
PCBs, or polychlorinated biphenyls, are industrial products or chemicals| oceanservice.noaa.gov
Eutrophication is a big word that describes a big problem in the nation's estuaries. Harmful algal blooms, dead zones, and fish kills are the results of the eutrophication process—which begins with the increased load of nutrients to estuaries and coastal waters.| oceanservice.noaa.gov
When corals are stressed by changes in conditions such as temperature, light, or nutrients, they expel the symbiotic algae living in their tissues, causing them to turn completely white.| oceanservice.noaa.gov
El El Nino and La Nina are complex weather patterns resulting from variations in ocean temperatures in the Equatorial Pacific.| oceanservice.noaa.gov
