Temperature & Chemistry

How and why do ocean temperatures fluctuate throughout the ocean? Not only are there massive temperature changes in the ocean (called a thermocline), but also swift changes in salt, oxygen and other chemicals that can tell scientists a lot.

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Marine biologist Mette Kaufman measures the temperature of a recently-drilled ice core . Variations in temperature at different points of the ice core provide information about the living conditions of the various organisms that...
Over a 10-year period, NOAA scientists have collected 72,000 seawater samples,...
Ultraviolet light illuminates the growth rings in a cross-section of a 44-year-...
Dr. Francisco Chavez of the Monterey Bay Aquarium Research Institute estimates...

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How will changes in temperature affect glaciers and ice sheets? Dr. Sarah Das from the Woods Hole Oceanographic Institution explores this phenomenon first hand in Greenland, where she studies how the melted ice travels through...
Over a 10-year period, NOAA scientists have collected 72,000 seawater...
Ultraviolet light illuminates the growth rings in a cross-section of a 44-...

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A fleet of underwater floats called Argo is deployed at more than 3,000 spots around the world. The floats transmit...
The Amazon river is the largest river in the world. It drains the entire Amazon rainforest, sending leftover nutrients, detritus, and minerals from the South American jungle out into the tropical...
How will changes in temperature affect glaciers and ice sheets? Dr. Sarah Das from the Woods Hole Oceanographic Institution explores this phenomenon first hand in Greenland, where she studies how the...
Algae, like all organisms, normally grow in balance with their ecosystems, limited by the amount of nutrients in the water. But sometimes, certain species of algae reproduce so rapidly that they...
Over a 10-year period, NOAA scientists have collected 72,000 seawater samples, and their data show that the ocean is becoming more acidic because of climate change . That small change in acidity is...
The first unmanned, underwater robot or glider Scarlet Knight maneuvers through the dangerous opposing and circular currents in swirling eddy fields of the Atlantic Ocean to collect data below the...
Studies along the Northwest Atlantic Ocean shelf break- the transition from continental shelf to slope- by researchers from Woods Hole Oceanographic Institution and Rutgers University are revealing...
The Woods Hole Oceanographic Institution's "Line W" program is conducting research to better understand how the oceans and the atmosphere work together to cause, and are affected by, climate...
A screen capture from NOAA's NowCoast website which displays real-time weather data, including current speeds, projected hazards, temperature and wind speed. Real-time data is helping scientists work...
The Baltic is a brackish sea, a unique combination of freshwater from rivers in the surrounding countries and salt water from the ocean. The low salinity levels are one of the factors that determine...
It’s not an easy question to answer. In the lab, scientists can set up a series of seawater tanks with a variety of pH levels to figure out how different species react to more acidic water, observing...
A fleet of underwater floats called Argo is deployed at more than 3,000 spots around the world. The floats transmit information about water temperature, salinity, and pressure which scientists use to...
CREDIT: Provided by Rutgers University Glider Technology Now Used to Study Oil Spill in Gulf of Mexico The first underwater robotic vehicle—or “glider”—to cross an ocean is the centerpiece of a new...
Many species are being recruited to gather data in hidden corners of the ocean. From sea lions to sharks, these animals can collect information about how climate change is affecting ocean temperature...
Ocean acidification is sometimes called “climate change’s equally evil twin,” and for good reason: it's a significant and harmful consequence of excess carbon dioxide in the atmosphere that we don't...
Marine biologist Mette Kaufman measures the temperature of a recently-drilled ice core . Variations in temperature at different points of the ice core provide information about the living conditions...
Globotruncana falsostuarti -- a foram that lived about 75 million years ago, during the Cretaceous Period, from southeastern Tanzania. By measuring the chemistry in the shell, scientists can estimate...
Dr. Francisco Chavez of the Monterey Bay Aquarium Research Institute estimates that a million tons of CO 2 enter the ocean hourly. His studies in Peru explore the phenomenon of ocean acidification,...
Fossil fuels that power our cars, homes, and businesses add carbon dioxide (CO2) to the atmosphere. The ocean absorbs large portions of this CO2 and acts as a buffer against climate change . But, Dr...
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