«
With warmer sea surface temperatures beneath the cloud, the coalescence process that produces precipitation becomes more efficient,» explains Lindzen.
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.
«
With warmer sea surface temperatures beneath the cloud, the coalescence process that produces precipitation becomes more efficient,» team member Richard S. Lindsen of M.I.T. explains.
[21] More male pups are produced than female pups in years
with warmer sea surface temperature in the northeastern Pacific Ocean.
Not exact matches
This cycle coincides
with the natural rise and fall of
sea surface temperatures in the North Atlantic, which fluctuate roughly 0.2 degree Celsius every 60 years as
warm currents shift.
First,
sea -
surface temperatures in the Gulf of Mexico have been higher than normal in the past couple of months, due to global
warming, which means the air that flowed north would have been
warmer to start
with.
At the same time, the El Niño event brought
warmer sea -
surface temperatures, which have been shown to correlate
with outbreaks of mosquito - transmitted diseases.
The visualization shows how the 1997 event started from colder - than - average
sea surface temperatures — but the 2015 event started
with warmer - than - average
temperatures not only in the Pacific but also in in the Atlantic and Indian Oceans.
The new analysis combines
sea -
surface temperature records
with meteorological station measurements and tests alternative choices for ocean records, urban
warming and tropical and Arctic oscillations.
«Human influence is so dominant now,» Baker asserts, «that whatever is going to go on in the tropics has much less to do
with sea surface temperatures and the earth's orbital parameters and much more to do
with deforestation, increasing atmospheric carbon dioxide and global
warming.»
Sea ice and snow cover loss create a feedback look that can accelerate global
warming;
with fewer reflective
surfaces on the planet, more sunlight can thereby be absorbed, driving
surface temperatures even higher, the scientists explained.
In late 2010 and early 2011, the continent Down Under received about twice its normal complement of rain, thanks in large part to unusually
warm sea -
surface temperatures just north of Australia and a particularly strong La Niña — in essence, combining a source of
warm humid air
with the weather patterns that steered the moisture over the continent where it condensed and fell as precipitation.
With higher levels of carbon dioxide and higher average
temperatures, the oceans»
surface waters
warm and
sea ice disappears, and the marine world will see increased stratification, intense nutrient trapping in the deep Southern Ocean (also known as the Antarctic Ocean) and nutrition starvation in the other oceans.
The western tropical Pacific is known as the «
warm pool»
with the highest
sea surface temperature (SST) in the world (on average).
Consistent
with observed changes in
surface temperature, there has been an almost worldwide reduction in glacier and small ice cap (not including Antarctica and Greenland) mass and extent in the 20th century; snow cover has decreased in many regions of the Northern Hemisphere;
sea ice extents have decreased in the Arctic, particularly in spring and summer (Chapter 4); the oceans are
warming; and
sea level is rising (Chapter 5).
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.
Positive (negative) phases of the AMO coincide
with warmer (colder) North Atlantic
sea surface temperatures.
Much
warmer - than - average
temperatures engulfed most of the world's oceans during June 2016,
with record high
sea surface temperatures across parts of the central and southwest Pacific Ocean, northwestern and southwestern Atlantic Ocean, and across parts of the northeastern Indian Ocean.
This has coincided
with the
warmest June - August
sea surface temperatures on record.
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.
Species
with larvae that are likely to be particularly exposed to
sea surface warming (i.e., obligatory broadcast spawners and / or brooders) were regarded as having lower tolerance to
warming, and we used evidence of past mass high
temperature mortality as a proxy for measuring adult colonies» tolerances.
When this model is run
with a standard, idealised global
warming scenario you get the following result for global
sea surface temperature changes.
Much of the recent
sea ice loss is attributed to
warmer sea surface temperatures with southerly wind anomalies a contributing cause [Francis and Hunter, 2007; Sorteberg and Kvingedal, 2006],
with thermodynamic coupling leading to associated increases in atmospheric moisture.»
Remember also that the US is only about 2 % of the globe and the global
surface record corresponds closely
with satellite measurements of the lower troposhere, and also the
sea surface temperatures show a strikingly similar pattern of
warming.
The western tropical Pacific is known as the «
warm pool»
with the highest
sea surface temperature (SST) in the world (on average).
With respect to 181, if global warming increases sea surface temperatures which contribute to an intensification of tropical cyclones, then storms with winds below hurricane intensity will more frequently attain hurricane status (~ 100 kph win
With respect to 181, if global
warming increases
sea surface temperatures which contribute to an intensification of tropical cyclones, then storms
with winds below hurricane intensity will more frequently attain hurricane status (~ 100 kph win
with winds below hurricane intensity will more frequently attain hurricane status (~ 100 kph winds).
It could very well be that general
warming along
with high
sea -
surface temperatures have lengthened the tropical storm season, making it more likely that a Sandy could form, travel so far north, and have an opportunity to interact
with a deep jet - stream trough associated
with the strong block, which is steering it westward into the mid-Atlantic.
The coincidence of this area loss and a 30 square kilometer loss in 2008
with abnormal warmth this year, the setting of increasing
sea surface temperatures and
sea ice decline are all part of a climate
warming pattern.
Here we analyze a series of climate model experiments along
with observational data to show that the recent
warming trend in Atlantic
sea surface temperature and the corresponding trans - basin displacements of the main atmospheric pressure centers were key drivers of the observed Walker circulation intensification, eastern Pacific cooling, North American rainfall trends and western Pacific
sea - level rise.
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).
Sea surface temperatures in the Western Pacific are well above climatology, and it has been argued that the warmth in the Western Pacific along
with the lack of an equivalent long - term
warming trend in the Eastern Pacific, increase the chances of a «super El Niño,» comparable to the two strongest El Niños of the past century, which occurred in 1998 and 1983.
Since 1850, CO2 levels rose, as did the «globally and annually averaged land and
sea surface temperature anomaly» (for what it's worth), but nobody knows whether or not the increase in CO2 had anything whatsoever to do
with the
warming.
Years - long ocean trends such as El Niño and La Niña cause alternate
warming and cooling of the
sea surface there,
with effects on monsoons and
temperatures around the world.
«
With very high
sea surface temperatures that have a strong global
warming component, these flooding events break records, and cause untold damage,» he says.
Northern Indian Ocean
sea surface temperatures (SSTs) are
warmed, along
with the plains of northern India and the Tibetan Plateau.
For example,
warm sea surface temperatures make it more likely for an El Niño to occur, but can not be used to predict El Niños
with absolute certainty, Levine said.
Indeed that most recent
warming occurred as ENSO dragon kings in 1976/77 and 1998/2001 and that the satellite evidence suggests that cloud radiative forcing dominated in the interim in a secular pattern negatively correlated
with sea surface temperature.
They avoid some of the issues in Millar by using more globally - representative
surface temperature records, though they still use series that blend
surface air
temperatures over land
with slower -
warming sea surface temperatures over the ocean.
The paper discusses that melting ice will decrease the salinity of the ocean waters around Antarctica, which will cause decreased mixing
with the relatively
warmer deep ocean waters, reducing
sea surface temperatures, causing more
sea ice to form.
A new methodology (combined Pacific variability mode) is developed to objectively analyze how climate change may be synergistically interacting
with Pacific
sea surface temperature associated
warm season teleconnections in North America.
But after it initially formed near the Bahamas and drifted eastward, it was in a region where
sea -
surface temperatures (SSTs) are running about 3 °F above the long - term average consistent
with a
warmer world.
Combine the satellite trend
with the
surface observations and the umpteen non-
temperature based records that reflect
temperature change (from glaciers to phenology to lake freeze dates to snow - cover extent in spring & fall to
sea level rise to stratospheric temps) and the evidence for recent gradual
warming is, well, unequivocal.
As seen in Figure 2, a cool phase PDO is associated
with cool
sea surface temperatures along the Pacific coast of North America, but the center of the North Pacific ocean is still quite
warm.
While consistent
with the IPCC assessments of historical
warming, it lacks coverage of much of the fast -
warming Arctic region and blends
surface air
temperatures over land
with slower -
warming sea surface temperatures over the ocean.
An El Nino analysis released by the national weather service last week says
sea surface and sub-
surface temperature anomalies were consistent
with El Niño during December, but the overall atmospheric circulation continued to show only limited coupling
with the
warm water.
Average air
temperature over the land and
sea surface was 0.56 degrees Celsius above the long - term average, tied
with 2010 as the joint
warmest year on record.
This change in
sea level occurred in the context of different orbital forcing and
with high latitude
surface temperature, averaged over several thousand years, at least 2 °C
warmer than present.
There is growing evidence that
warmer sea surface temperatures, associated
with climate change, will produce stronger tropical cyclones.
''... worked
with two sediment cores they extracted from the seabed of the eastern Norwegian
Sea, developing a 1000 - year proxy
temperature record «based on measurements of δ18O in Neogloboquadrina pachyderma, a planktonic foraminifer that calcifies at relatively shallow depths within the Atlantic waters of the eastern Norwegian
Sea during late summer,» which they compared
with the temporal histories of various proxies of concomitant solar activity... This work revealed, as the seven scientists describe it, that «the lowest isotope values (highest
temperatures) of the last millennium are seen ~ 1100 - 1300 A.D., during the Medieval Climate Anomaly, and again after ~ 1950 A.D.» In between these two
warm intervals, of course, were the colder
temperatures of the Little Ice Age, when oscillatory thermal minima occurred at the times of the Dalton, Maunder, Sporer and Wolf solar minima, such that the δ18O proxy record of near -
surface water
temperature was found to be «robustly and near - synchronously correlated
with various proxies of solar variability spanning the last millennium,»
with decade - to century - scale
temperature variability of 1 to 2 °C magnitude.»
Because the model - simulated
sea surface temperatures are too
warm globally, this shortcut helps to better align the data
with the models.