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We work with stakeholders in the Islands to build tools that can forecast and report on climate, tides and the ocean. And work with them to determine how best to communicate this information to communities, businesses and Governments.
Want to know what the project and team have been up to? How the oceans influence climate The oceans influence climate over long and short time-scales. On the longest time-scale of geologic time, the shape and location of the continents helps to determine the oceans' circulation patterns. Since continental plates drift at about 5 cm per year and mountain ranges rise by about 1 mm, it usually takes millions of years for new land formations to change the oceans.
Australian Government Bureau of Meteorology
Patterns of ocean circulation and up-welling can also change much more rapidly, resulting in climate variations and fluctuations on a human time-scale. Records of global and, in particular, regional climate show periods lasting from years to centuries during which the climate was systematically different from earlier and later periods.
Scientists believe that this behaviour is related to changes in the way the oceans store and transport heat, although the precise causes of these changes are not always clear. The oceans and the atmosphere are tightly linked and together form the most dynamic component of the climate system.
Changes in external factors such the sun's energy , the distribution of various plant species, or the emission of greenhouse gases into the atmosphere can alter the temperature and circulation patterns of the atmosphere-ocean system. Because the atmosphere and oceans are turbulent, they can also generate their own internal fluctuations.
Short-term fluctuations in wind or temperature that is, weather can directly influence the currents and temperature of the underlying ocean, while oceanic fluctuations can magnify, diminish, or modify atmospheric fluctuations. The oceans play a critical role in storing heat and carbon. When the earth's surface cools or is heated by the sun, the temperature change is greater - and faster - over the land than over the oceans. Because it is a fluid, the ocean diffuses the effects of a temperature change for great distances via vertical mixing and convective movements.
Climate Variability | Science Mission Directorate
The solid land cannot, so the sun's heat penetrates only the thin, upper crust. One consequence of the ocean's ability to absorb more heat is that when an area of ocean becomes warmer or cooler than usual, it takes much longer for that area to revert to "normal" than it would for a land area. They have slowed the effects of climate change by absorbing 93 percent of the heat trapped by the greenhouse gases humans pump into the atmosphere.
Pinsky, an associate professor in the department of ecology, evolution and natural resources at Rutgers University.
But the surging water temperatures are already killing off marine ecosystems, raising sea levels and making hurricanes more destructive. As the oceans continue to heat up, those effects will become more catastrophic, scientists say. Rainier, more powerful storms like Hurricane Harvey in and Hurricane Florence in will become more common, and coastlines around the world will flood more frequently.
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Coral reefs, whose fish populations are sources of food for hundreds of millions of people, will come under increasing stress ; a fifth of all corals have already died in the past three years. People in the tropics, who rely heavily on fish for protein, could be hard hit, said Kathryn Matthews, deputy chief scientist for the conservation group Oceana.
Because they play such a critical role in global warming, oceans are one of the most important areas of research for climate scientists. Average ocean temperatures are also a consistent way to track the effects of greenhouse gas emissions because they are not influenced much by short-term weather patterns, Mr.
Oceans and Water
But, historically, understanding ocean temperatures has been difficult. An authoritative United Nations report , issued in by the Intergovernmental Panel on Climate Change, presented five different estimates of ocean heat, but they all showed less warming than the levels projected by computer climate models — suggesting that either the ocean heat measurements or the climate models were inaccurate.
The floats measure the temperature and saltiness of the upper 6, feet of the ocean and upload the data via satellites. But before Argo, researchers relied on temperature sensors that ships lowered into the ocean with copper wire.