January 08, 2014
The globally averaged surface air temperature hasn’t risen much in the last 15 years, but new research confirms ample heating of Earth, which becomes evident when looking at certain times of year and in particular locations, including deep in the ocean.
Warming hiatus? Map showing changes in global temperature since late 1970s
August 19, 2013
A rare confluence of three atmospheric patterns drove so much precipitation over Australia in 2010 and 2011 that the world’s ocean levels dropped measurably.
flooding in Australia
April 14, 2013
Reducing emissions of four shorter-lived pollutants could slow the annual rate of sea level rise by up to 50 percent.
Photo of rugged coastline
December 31, 2012
More than two days ahead of landfall, it was clear that Hurricane Sandy could bring higher water than New York and New Jersey had seen in decades. But for thousands of people in the area, the threat simply didn’t register. (Part 1 of 2)
Hurricane Sandy storm surge-wreckage of New Jersey roller coaster
December 31, 2012
Sandy's storm surge was more than twice that of other recent tropical cyclones in the New York City area—but several other factors teamed up to bring waters to their catastrophically high level. (Part 2 of 2)
Dissecting Sandy's storm surge-graphic shows top-10 high water events at Battery Park, NYC
November 09, 2012
NOAA has cancelled the El Niño Watch that’s been in effect since late summer (see PDF), but this doesn't guarantee a placid U.S. winter.
Snowy street in Seattle
November 02, 2012
Every so often, a quiet corner of research suddenly grabs the spotlight. Such was the case this week when a Category 1 Atlantic hurricane morphed into Superstorm Sandy.
UCAR Magazine
October 08, 2012
First in the queue for the NCAR-Wyoming Yellowstone system is a set of 11 computing-intensive projects tackling major problems in Earth and atmospheric science.
Close-up depiction of solar turbulence
September 28, 2012
In recent months there’ve been hints of an El Niño on the horizon that might help quench the ongoing U.S. drought. But those hints might turn out to be as meaningless as a mirage on a parched highway.
View from research site, Kanton Island, American Samoa
August 17, 2012
Researchers ponder the implications of a massive summer storm in the Arctic Ocean that swept across a weakened ice pack.
UCAR Magazine
July 26, 2012
Even if climate mitigation efforts succeed, current warming trends commit us to centuries of sea level rise.
July 06, 2012
Cooler and drier air injected into a hurricane can put the brakes on its growth. Scientists are learning more about how this process works and how forecasters can watch for it.
Image showing the impact of ventilation on hurricane intensity
May 21, 2012
With a series of papers over the last few years, NCAR's Aixue Hu has been slowly unraveling the story of the Bering Strait and its complex impact on our planet's climate.
UCAR Magazine
February 28, 2012
A new study that provides the first comprehensive satellite analysis of Earth’s melting glaciers and ice caps has grave implications for sea level rise.
An aerial view of a white glacier curving through mountains.
October 17, 2011
Climate change is not expected to affect the extent or frequency of the El Niño/Southern Oscillation over the 21st century, but it could worsen its impacts. That’s the conclusion of a modeling study published in Journal of Climate in September.
Waves crashing near shore.
October 03, 2011
New research by a team of scientists that includes NCAR’s Marika Holland takes a close look at making seasonal forecasts of Arctic sea ice coverage.
Sea ice
September 16, 2011
Computer simulations point to ocean depths below about 1,000 feet as the main location for "missing heat."
August 31, 2011
New research that involves NCAR's Bette Otto-Bliesner questions conventional wisdom with regard to massive iceberg discharges in the North Atlantic Ocean during the last glacial period, pointing toward climate rather than ice sheet instability as a cause.
An iceberg floating in the ocean.
August 11, 2011
Sea ice could stabilize or even expand for periods of several years, but it will ultimately melt as the climate warms.
Chunks of sea ice and open water
July 27, 2011
A new study involving NCAR's Bette Otto-Bliesner looks at rising sea levels during the warmth of the last interglacial period (130,000 to 120,000 years ago) and finds that melting ice sheets contributed far more to rising sea levels than thermal expansion.
An ocean wave.
June 03, 2011
A new study led by NCAR’s Wei Yu and CU-Boulder’s Weiqing Han looks at the effects of the Madden-Julian Oscillation (MJO), the largest source of intraseasonal (within one season) variability in the tropics, causing wet and dry periods to alternate.
Ocean waves.
March 01, 2011
When climate change leaped into global consciousness more than 20 years ago, there was no doubt that sea levels would rise, but the main worry was how those rising seas would affect civilization, not on how the oceans themselves might be transformed.
Sampling coral in the Pacific near Kiribati
February 25, 2011
The less-than-predicted amount of oil reaching coastlines after the Deepwater Horizon spill illuminates the difference between a projection and an actual forecast and the challenges of making short-term projections of natural processes that can act chaotically.
Track of Loop Current in the Gulf of Mexico
October 06, 2010
El Niño and La Niña are counterparts in the El Niño-Southern Oscillation (ENSO), a cyclic warming and cooling of the eastern and central Pacific Ocean that exerts a major influence on global weather patterns, but they are not mirror images.
Ocean waves rolling into shore.
September 21, 2010
Sustained winds can produce a parting of the waters under certain conditions.
illustration of wind setdown with area map inset

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