Sentences with phrase «by warmer sea surface»

The intense prehistoric hurricanes were fueled in part by warmer sea surface temperatures in the Atlantic Ocean during the ancient period investigated than have been the norm off the U.S. East Coast over the last few hundred years, according to the study.

Not exact matches

SEAS researchers suggest that early Mars may have been warmed intermittently by a powerful greenhouse effect, possibly explaining water on the planet's surface billions of years ago.

In the new set - up, a real - world seasonal forecast driven by data on current sea - surface temperatures will be run alongside a simulated «no global warming» seasonal forecast, in which greenhouse gas emissions have been stripped out.

In June 2015, NOAA researchers led by Thomas Karl published a paper in the journal Science comparing the new and previous NOAA sea surface temperature datasets, finding that the rate of global warming since 2000 had been underestimated and there was no so - called «hiatus» in warming in the first fifteen years of the 21st century.

One study, led by Chris Funk of the U.S. Geological Survey and the University of California, Santa Barbara's Climate Hazard Group, looked at long - term warming of the sea surface in the North Pacific.

A second study, led by Hailan Wang of NASA's Goddard Space Flight Center, used different model simulations and came to a similar conclusion: While a warming sea surface did make it more likely that a high - pressure ridge could form, the signal was not strong enough to explain its extreme nature.

Hurricanes are powered by energy pulled out of warm seawater, so sea surface temperature data collected by satellites is fed into forecast models to estimate their intensity.

Complementary analyses of the surface mass balance of Greenland (Tedesco et al, 2011) also show that 2010 was a record year for melt area extent... Extrapolating these melt rates forward to 2050, «the cumulative loss could raise sea level by 15 cm by 2050 ″ for a total of 32 cm (adding in 8 cm from glacial ice caps and 9 cm from thermal expansion)- a number very close to the best estimate of Vermeer & Rahmstorf (2009), derived by linking the observed rate of sea level rise to the observed warming.

«During Norwegian winters, sea surface water is colder than at depth, so by lifting warmer water to the surface using bubble curtains, we can prevent the fjords from icing up», he says.

SEAS research suggests that early Mars may have been warmed intermittently by a powerful greenhouse effect, possibly explaining the presence of water on the planet's surface.

The reason could be linked to rising sea surface temperatures — fueled in part by global warming — as seen in ocean buoy data collected along the U.S. coast.

But, according to a new analysis in the journal Geophysical Research Letters by Ben Henley and Andrew King of the University of Melbourne, the 1.5 °C target may be reached or exceeded as early as 2026 if the Interdecadal Pacific Oscillation (IPO) shifts sea surface temperatures in the Pacific from a cool to a warm phase.

Long - term (decadal and multi-decadal) variation in total annual streamflow is largely influenced by quasi-cyclic changes in sea - surface temperatures and resulting climate conditions; the influence of climate warming on these patterns is uncertain.

However, extreme events may require the combined effect of increased prevailing winds and tropical storms guided by the strengthened blocking high pressure and nurtured by the unusually warm late - Eemian tropical sea surface temperatures (Cortijo et al., 1999), which would favor more powerful tropical storms (Emanuel, 1987).

A very recent study by Saba et al. (2015) specifically analyzed sea surface temperatures off the US east coast in observations and a suite of global warming runs with climate models.

The East Pacific Ocean (90S - 90N, 180 - 80W) has not warmed since the start of the satellite - based Reynolds OI.v2 sea surface temperature dataset, yet the multi-model mean of the CMIP3 (IPCC AR4) and CMIP5 (IPCC AR5) simulations of sea surface temperatures say, if they were warmed by anthropogenic forcings, they should have warmed approximately 0.42 to 0.44 deg C.

Climate conditions favor warm water growth — as measured by sea surface temperature (SST)-- later in the year, suggesting that normal climate conditions effectively nipped the nascent El Niño in the bud.

Methods: In these experiments, the research team conducted large ensembles of simulations with two state - of - the - art atmospheric general circulation models by abruptly switching the sea - surface temperature warming on from January 1st to focus on the wintertime circulation adjustment.

A large ensemble of Earth system model simulations, constrained by geological and historical observations of past climate change, demonstrates our self ‐ adjusting mitigation approach for a range of climate stabilization targets ranging from 1.5 to 4.5 °C, and generates AMP scenarios up to year 2300 for surface warming, carbon emissions, atmospheric CO2, global mean sea level, and surface ocean acidification.

Warming was not uniform across the globe: sea surface temperatures increased by ~ 6 °C at high latitudes and ~ 4 °C at low latitudes, and deep - water temperatures increased by ~ 8 °C at high latitudes and ~ 6 °C at low latitudes.

In contrast to historical droughts, future drying is not linked to any particular pattern of change in sea surface temperature but seems to be the result of an overall surface warming driven by rising greenhouse gases.

Geoengineering proposals fall into at least three broad categories: 1) managing atmospheric greenhouse gases (e.g., ocean fertilization and atmospheric carbon capture and sequestration), 2) cooling the Earth by reflecting sunlight (e.g., putting reflective particles into the atmosphere, putting mirrors in space to reflect the sun's energy, increasing surface reflectivity and altering the amount or characteristics of clouds), and 3) moderating specific impacts of global warming (e.g., efforts to limit sea level rise by increasing land storage of water, protecting ice sheets or artificially enhancing mountain glaciers).

------------ PS: The Global Coral Reef Alliance has documented dramatic declines in coral reefs caused by global warming of surface waters, using satellite data of of global coral reefs and sea surface temperatures.

Roemmich said the study illustrates that the hiatus in warming of the sea surface and the lower atmosphere is not representative of the steady, continuing heat gain by the climate system.

In terms of power integrated over area, only northern Eurasia has a higher regional warming in absolute terms — which suggests to me that sea surface warming in the Arctic west of the Canadian archipelago might change the total sea energy balance by quite a bit.

Also, if you look at Table T2 in this paper, you will see that ocean sea surface heat storage 0 - 700m from 1955 - 2003 (in W / m2) is always higher at northern latitudes than the corresponding southern latitudes in every case, even with the extensive Southern Ocean warming as noted by Gavin responding to # 18.

A significant northward trend (reduction of ice) in the winter - maximum ice edge is apparent, however, and appears to be caused by the gradual warming of sea - surface temperatures in the region (paper available on this if you want it).

I recall mention that Katrina was unusual because while crossing the Gulf «Ring Current» the deeper water pulled up by the hurricane was almost as warm as the sea surface, so the deeper water fed almost as much heat energy into the storm as the surface.

IF cool deep sea water were mixed relentlessly with surface water by some engineering method --(e.g. lots of wave operated pumps and 800m pipes) could that enouromous cool reservoir of water a) mitigate the thermal expansion of the oceans because of the differential in thermal expansion of cold and warm water, and b) cool the atmosphere enough to reduce the other wise expected effects of global warming?

El Nino is characterised by warmer than normal sea surface along the equator in the eastern Pacific, whereas La Nina is colder than normal conditions over the same region.

Re 9 wili — I know of a paper suggesting, as I recall, that enhanced «backradiation» (downward radiation reaching the surface emitted by the air / clouds) contributed more to Arctic amplification specifically in the cold part of the year (just to be clear, backradiation should generally increase with any warming (aside from greenhouse feedbacks) and more so with a warming due to an increase in the greenhouse effect (including feedbacks like water vapor and, if positive, clouds, though regional changes in water vapor and clouds can go against the global trend); otherwise it was always my understanding that the albedo feedback was key (while sea ice decreases so far have been more a summer phenomenon (when it would be warmer to begin with), the heat capacity of the sea prevents much temperature response, but there is a greater build up of heat from the albedo feedback, and this is released in the cold part of the year when ice forms later or would have formed or would have been thicker; the seasonal effect of reduced winter snow cover decreasing at those latitudes which still recieve sunlight in the winter would not be so delayed).

Since sea surfaces rose by roughly 400 feet since the peak of the last ice age due to melting of glaciers, it is quite possible that a great many civilizations did decline or perish due to warming, and in fact perished so thoroughly that there is no trace of them.

The contribution to sea surface height by thermal expansion is significant, but doesn't play a very big role in determining the temperature of the warm pool.

Thus, if the (cooler) air above warms by two degrees and the (warmer) sea surface warms by only one, then the differential in your scenario drops from 15 to 14, decreasing the strength of the hurricane.

The Philippines is located in the western Pacific Ocean, surrounded by naturally warm waters that will likely get even warmer as average sea - surface temperatures continue to rise.

First the molecules in the atmosphere warm up followed by those on the surface whether the surface is land or sea.

For example, clouds can cool the sea by blocking the warming rays of the sun or reduce surface salinity by bringing rain.

This warming can be seen in measurements of troposphere temperatures measured by weather balloons and satellites, in measurements of ocean heat content, sea surface temperature (measured in situ and by satellites), air temperatures over the ocean, air temperature over land.

The initial warming also reduces the surface albedo by melting snow and sea - ice, which likewise constitutes a positive feedback because snow and ice are effective reflectors of sunlight.

All the sea surface water, warmed by the tropical sun, is blown to the west of the Pacific and, to compensate part of the imbalance, cooler deep ocean waters well up on the western shores of Latin America (and spread all the way up to the Solomon Islands).

Although the IPCC climate models have performed remarkably well in projecting average global surface temperature warming thus far, Rahmstorf et al. (2012) found that the IPCC underestimated global average sea level rise since 1993 by 60 %.

Additionally, the less sea ice covers the surface of the ocean, the more sunlight is absorbed by the water, which scientists warn could accelerate the Arctic's warming.

Jarraud said 16 - 20 percent of the 2015 rise may be due to El Niño, a natural weather pattern marked by warming sea - surface temperatures in the Pacific Ocean.

Is it: The troposphere, close to the surface air temperature, sea surface temperature, the temperature of the deep oceans??? It matters, because the amount of energy accumulation which may warm the atmosphere by 1 K (K = Kelvin, same as Celsius) is only enough to warm the oceans by about 0.001 K.

Unlike hurricanes that are powered by latent heat from warm sea surfaces, extra-tropical winter storms along the eastern seaboard are primarily powered by the pressure gradient produced by the contrast between the cold continent and warm Gulf Stream.

3) In my comment https://judithcurry.com/2011/08/04/carbon-cycle-questions/#comment-198992 I have proved, that the recent increase of CO2 content in atmosphere has been mainly caused by global warming of oceanic sea surfaces, especially in the areas where CO2 sinks on sea surface are; sea surfaces on the areas of CO2 sinks are warming by lag compared to climate warming.

They describe abnormally warm or cool sea surface temperatures in the South Pacific that are caused by changing ocean currents.

While tropical hurricane intensity is primarily driven by latent heat from warm sea surface temperatures, an extra-tropical storm is primarily driven by baroclinic processes (differences in the pressure gradient) such as the gradient due to the contrast between the warm Gulf Stream and cold continental air mass.

«What I think we can say is that the increase in intensity is probably accounted for by the increase in sea - surface temperature,» he told the BBC News website, «and I think probably the sea - surface temperature increase is a manifestation of global warming.»

The periods of intense hurricanes uncovered by the new research were driven in part by intervals of warm sea surface temperatures that previous research has shown occurred during these time periods, according to the new study.