Sentences with phrase «warming over ocean»

Warming over land is greater than the mean except in the southern mid-latitudes, where the warming over ocean is a minimum.

Instead we have the deeper ocean warming and no lower tropospheric warming over oceans except in the far north.

But it is warm over the oceans and the contrast between the cold continent and the warm Gulf Stream and surrounding waters is increasing,» he wrote in an email.

Not exact matches

While this is bad news for the planet, it's good news for climate change scientists who have — for the last two decades — puzzled over warming trends in ocean surface temperatures for nearly 20 years.

Sensors that have plumbed the depths of Arctic seas since 2002 have found warm currents creeping up from the Atlantic Ocean and helping drive the dramatic retreat of sea ice there over the last decade.

That creates an overall warmer, well - mixed ocean over the top 250 meters, and one with little sea ice.

The causes of the warming remain debated, but Liu and his team homed in on the melting glacial water that poured into oceans as the ice receded, paradoxically slowing the ocean current in the North Atlantic that keeps Europe from freezing over.

They found that western Antarctica has recently seen warmer, saltier water being driven under the shelf — the part of the ice sheet that sticks out over the ocean (Science, doi.org/xkx).

«Over several hundred generations, apparently those new mutations that are advantageous in conditions of both ocean acidification and warming emerged and swept through the population,» concludes Schlüter.

«Using a numerical climate model we found that sulfate reductions over Europe between 1980 and 2005 could explain a significant fraction of the amplified warming in the Arctic region during that period due to changes in long - range transport, atmospheric winds and ocean currents.

The simulations suggest that over decades, these warming events dramatically perturb the ocean surface, affecting the flow of the Atlantic Meridional Overturning Circulation, a system of currents that acts like a conveyor belt moving water around the planet.

While the air over Antarctica remains cold, warming oceans can cause ice loss on the coast.

The exceptional strengthening of a high - pressure area in Siberia, which brought freezing temperatures to Finland in late February and early March, may be partly the result of atmospheric warming over the Arctic Ocean.

In one study published in Geophysical Research Letters in 2007, scientists at the Max Planck Institute for Meteorology in Hamburg, Germany, estimated the mass redistribution resulting from ocean warming would shorten the day by 120 microseconds, or nearly one tenth of a millisecond, over the next two centuries.

«An important result of this paper is the demonstration that the oceans have continued to warm over the past decade, at a rate consistent with estimates of Earth's net energy imbalance,» Rintoul said.

Terrestrial ecosystems have encountered substantial warming over the past century, with temperatures increasing about twice as rapidly over land as over the oceans.

According to the new findings, Earth may be able to significantly reduce global warming by releasing some of the heat through a «vent» in the cloud cover over the Pacific Ocean.

Southern Ocean seafloor water temperatures are projected to warm by an average of 0.4 °C over this century with some areas possibly increasing by as much as 2 °C.

Analyzing data collected over a 20 - month period, scientists from NASA's Goddard Space Flight center in Greenbelt, Md., and the Massachusetts Institute of Technology found that the number of cirrus clouds above the Pacific Ocean declines with warmer sea surface temperatures.

«Hurricanes almost always form over ocean water warmer than about 80 degrees F. in a belt of generally east - to - west flow called the trade winds.

Over the past 60 years, winter temperatures in the northwestern part of the peninsula have soared by 11 degrees F. Year - round temperatures have risen by 5 degrees F and the surrounding ocean is warming.

Changes in ocean currents, Kennett says, triggered the methane bursts by channeling warmer water over continental slopes, as at Storegga.

They can also explain more than half of the warming recorded over the Antarctic Peninsula, because «anomalously strong westerlies should act to decrease the incidence of cold air outbreaks from the south and lead to increased warm advection from the Southern Ocean.»

Scientists can confidently say that Earth is warming due to greenhouse gas emissions caused by humans, but data on climate trends over the Antarctic and the surrounding Southern Ocean only go back to 1979 when regular satellite observations began.

However, when temperatures warm over the Antarctic regions, deep waters rise from the floor of the ocean much closer to the continent.

Another principal investigator for the project, Laura Pan, senior scientist at the National Center for Atmospheric Research in Boulder, Colo., believes storm clusters over this area of the Pacific are likely to influence climate in new ways, especially as the warm ocean temperatures (which feed the storms and chimney) continue to heat up and atmospheric patterns continue to evolve.

Rapid vertical mixing in the convection areas that exist everywhere over the warm ocean and in which the warm air rises takes care of the rest.

Over the past ten years, the Gulf of Maine has warmed faster than 99 % of the global ocean.

A new study led by the University of Texas Institute for Geophysics has found that wind over the ocean off the coast of East Antarctica causes warm, deep waters to upwell, circulate under Totten Ice Shelf, and melt the fringes of the East Antarctic ice sheet from below.

«A warm western Europe requires a cold North Atlantic Ocean, and the warming that the North Atlantic is now experiencing has the potential to result in a cooling over western Europe,» says professor G.W.K. Moore of UTM's Department of Chemical & Physical Sciences.

Totten Glacier, the largest glacier in East Antarctica, is being melted from below by warm water that reaches the ice when winds over the ocean are strong — a cause for concern because the glacier holds more than 11 feet of sea level rise and acts as a plug that helps lock in the ice of the East Antarctic Ice Sheet.

Ongoing disagreement among scientists over how to sustain high survival rates for salmon once the ocean warms up again placed the National Marine Fisheries Service in a cross fire last year.

As the storm moves forward over these eddies, the warm ocean waters below help fuel the storm's intensity through enhanced and sustained heat and moisture fluxes.

Last year, Hurricane Matthew rapidly intensified from a tropical storm to hurricane status as it moved over the Caribbean Sea in the location where a warm ocean eddy exists, and in close proximity to where these measurements were taken for this study two years prior.

The AMO, in which temperatures over a large swath of the northern Atlantic Ocean fluctuate between warm and cold phases on a 50 - to 70 - year cycle, is one example.

Durack and his colleagues at LLNL found that the Southern Hemisphere's oceans have warmed at a higher rate over the past 35 years than previously thought.

An argument over the «nitty - gritty» The Durack paper suggests that the upper oceans have been warming much more rapidly over the past 35 years than previously thought.

Over the course of coming decades, though, trade wind speed is expected to decrease from global warming, Thunell says, and the result will be less phytoplankton production at the surface and less oxygen utilization at depth, causing a concomitant increase in the ocean's oxygen content.

The two measurements, plus warming of the deep ocean, would equal the global sea - level rise of 2.78 millimeters over the last decade.

In some parts of the Arctic Ocean, the shallow regions near continents may be one of the settings where methane hydrates are breaking down now due to warming processes over the past 15,000 years.

And, Stevens says, the study doesn't discuss the types of clouds that are thought to be the most crucial for future warming: low - lying clouds over the subtropical oceans, which have a strong cooling effect but may be dissipating as the world warms.

«We've got so much open water in the Arctic right now that has absorbed so much energy over the summer that the ocean has warmed.

The warm ocean water evaporates, adds moisture to the air and falls as precipitation over nearby regions.

Hard and soft corals are presently bleaching - losing their symbiotic algae — all over the coral reefs of the Florida Keys due to unusually warm ocean temperatures this summer.

Sea levels have been rising worldwide over the past century by between 10 and 20 centimetres, as a result of melting land - ice and the thermal expansion of the oceans due to a planetary warming of around 0.5 degreeC.

A study examined three different factors: warmer - than - usual surface atmosphere conditions (related to global warming); sea - ice thinning prior to the melting season (also related to global warming); and an August storm that passed over the Arctic, stirring up the ocean, fracturing the sea ice and sending it southward to warmer climes.

The Gulf Stream, an ocean current that brings warm water from the equator toward the North Atlantic, has been credited with this observed variation in temperature for over a century.

Understanding how carbon flows between land, air and water is key to predicting how much greenhouse gas emissions the earth, atmosphere and ocean can tolerate over a given time period to keep global warming and climate change at thresholds considered tolerable.

Because the vast plateau at such altitudes absorbs a huge amount of solar radiation, the atmospheric layer above it in summer is much warmer than air at similar elevations over lower land or the oceans.

Habib explains that it would have been able to cross broad stretches of ocean by taking advantage of thermals (rising columns of air created over warmer - than - normal patches of ocean) to gain altitude, then gliding until it reached the next thermal.