Sentences with phrase «with changes in sea surface temperatures»

The phases are associated with changes in sea surface temperatures (SST).

This extended drought is linked with the changes in the sea surface temperature of the Pacific Ocean, according to a study led by University of California Los Angeles (UCLA) professor Glen MacDonald.

Not exact matches

The team analyzed an index of sea surface temperatures from the Bering Sea and found that in years with higher than average Arctic temperatures, changes in atmospheric circulation resulted in the aforementioned anomalous climates throughout North Amerisea surface temperatures from the Bering Sea and found that in years with higher than average Arctic temperatures, changes in atmospheric circulation resulted in the aforementioned anomalous climates throughout North AmeriSea and found that in years with higher than average Arctic temperatures, changes in atmospheric circulation resulted in the aforementioned anomalous climates throughout North America.

There are strong competing effects such as changes in the large - scale atmospheric circulation, sea surface temperature changes like El Niño and La Niña and the dynamics of westerly storm tracks that all interact at the mid-latitudes,» said Stanford co-author Matthew Winnick who contributed to the study with fellow doctoral student Daniel Ibarra.

The first image, based on data from January 1997 when El Nio was still strengthening shows a sea level rise along the Equator in the eastern Pacific Ocean of up to 34 centimeters with the red colors indicating an associated change in sea surface temperature of up to 5.4 degrees C.

The most important bias globally was the modification in measured sea surface temperatures associated with the change from ships throwing a bucket over the side, bringing some ocean water on deck, and putting a thermometer in it, to reading the thermometer in the engine coolant water intake.

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).

For significant periods of time, the reconstructed large - scale changes in the North Pacific SLP field described here and by construction the long - term decline in Hawaiian winter rainfall are broadly consistent with long - term changes in tropical Pacific sea surface temperature (SST) based on ENSO reconstructions documented in several other studies, particularly over the last two centuries.

This seems to be associated with particular patterns of change in sea surface temperature in the Atlantic and Pacific oceans, a teleconnection which is well - captured in climate models on seasonal timescales.

«Climate Change, Sea Level, and Western Drought: Dangerous Anthropogenic Interference Learn why the American West could be in trouble with surface air temperatures rising faster than elsewhere in the coterminous United States.

Past summer, extratropical temperature changes appear, for example, to have have differed significantly from annual temperature changes over the entire (tropical and extratropical) Northern Hemisphere, and tropical Pacific Sea Surface Temperatures appear to have varied oppositely with temperatures in the extratropical regions oTemperatures appear to have varied oppositely with temperatures in the extratropical regions otemperatures in the extratropical regions of the globe.

«Climate Change, Sea Level, and Western Drought: Dangerous Anthropogenic Interference Learn why the American West could be in trouble with surface air temperatures rising faster than elsewhere in the coterminous United States.

On Wednesday an interesting paper (Thompson et al) was published in Nature, pointing to a clear artifact in the sea surface temperatures in 1945 and associating it with the changing mix of fleets and measurement techniques at the end of World War II.

«West Coast sea surface and coastal air temperatures evolved in lockstep with changing patterns of atmospheric pressure and winds.»

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).

In a study published in the journal Nature the researchers say analysis of sea surface temperature data shows that the AMOC has slowed down by roughly 15 % since the middle of the 20th century, with human - made climate change a prime suspecIn a study published in the journal Nature the researchers say analysis of sea surface temperature data shows that the AMOC has slowed down by roughly 15 % since the middle of the 20th century, with human - made climate change a prime suspecin the journal Nature the researchers say analysis of sea surface temperature data shows that the AMOC has slowed down by roughly 15 % since the middle of the 20th century, with human - made climate change a prime suspect.

The evidence is «equivocal» because it does not agree with limited land based observation of cloud — something that may be a little shortsighted as these changes seem significantly to be associated with sea surface temperature in the tropics and the influences of the northern and southern annular modes.

But it wouldn't be an El Nino in the complete sense (the sea surface temperature anomalies along with the associated changes to the dominant weather patterns).

Investigators outside NOAA are finding interesting trends and showing that they seem to be correlated with trends in such variables as SST [Sea Surface Temperature] in key regions, the changes of which almost certainly are due to human - induced changes in the climate, though having enough data to get all the statistics right is often problematic.

Give the students the graph below from Johnstone 2014 and ask them to compare changes in sea surface temperatures (SST in red) with the raw and recently homogenized temperature data from southern California.

For example, let's say that evidence convinced me (in a way that I wasn't convinced previously) that all recent changes in land surface temperatures and sea surface temperatures and atmospheric temperatures and deep sea temperatures and sea ice extent and sea ice volume and sea ice density and moisture content in the air and cloud coverage and rainfall and measures of extreme weather were all directly tied to internal natural variability, and that I can now see that as the result of a statistical modeling of the trends as associated with natural phenomena.

What we know with some certainty about oceans (if data is to be believed) is that the intra-annual change in the insolation effects (suspiciously) high symmetricity in the N. Atlantic's sea surface temperature, cantered on 1st of March and 31st of August.

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.

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.

The changes in sea - surface temperatures are consistent with the impact of the annular modes on the surface fluxes of latent and sensible heat, and also on the flux of heat by the anomalous Ekman flow.

Publishing in the journal Nature he argued, «The changes are all associated with patterns of dry - season mist frequency, which is negatively correlated with sea surface temperatures in the equatorial Pacific.»

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.

Sea level pressure changes in the two solstice seasons from a GCM simulation with increased sea surface temperature gradient minus a simulation with a decreased gradient in the Atlantic (top row), in the Pacific (middle row), and increased gradient in the Atlantic along with a decreased gradient in the Pacific minus the reverse (bottom roSea level pressure changes in the two solstice seasons from a GCM simulation with increased sea surface temperature gradient minus a simulation with a decreased gradient in the Atlantic (top row), in the Pacific (middle row), and increased gradient in the Atlantic along with a decreased gradient in the Pacific minus the reverse (bottom rosea surface temperature gradient minus a simulation with a decreased gradient in the Atlantic (top row), in the Pacific (middle row), and increased gradient in the Atlantic along with a decreased gradient in the Pacific minus the reverse (bottom row).

The broadening of the season correlates with rising sea surface temperatures; each degree Celsius temperature change corresponds to a 20 - day shift in both the beginning and end of hurricane season.

The slab ocean model is a computationally efficient scheme that allows sea surface temperatures to interact with the atmosphere; and is necessary for propagating energy imbalances due to land cover change that lead to shifts in precipitation.

Because the GISS analysis combines available sea surface temperature records with meteorological station measurements, we test alternative choices for the ocean data, showing that global temperature change is sensitive to estimated temperature change in polar regions where observations are limited.

We already know that the sea surface temperatures associated with mass bleaching of much of the Great Barrier Reef in early 2016 would have been virtually impossible without climate change.

That suggests that the 1940s tropical warming could have started the changes in the Amundsen Sea ice shelves that are being observed now... He emphasized that natural variations in tropical sea - surface temperatures associated with the El Niño Southern Oscillation play a significant role.&raqSea ice shelves that are being observed now... He emphasized that natural variations in tropical sea - surface temperatures associated with the El Niño Southern Oscillation play a significant role.&raqsea - surface temperatures associated with the El Niño Southern Oscillation play a significant role.»

The climate shift of 1978 manifests as a strong lift in 200hPa temperature globally with the most extreme change at about 30 ° of latitude in both hemispheres, a pronounced fall in sea level pressure in the south East Pacific, a jump in sea surface temperature in the tropics, the transition between solar cycle 20 and 21 and a hike in the aa index of geomagnetic activity that has slowly sunk along with 200hpa temperature from that time forward.

Here we use an ensemble of simulations with a coupled ocean — atmosphere model to show that the sea surface temperature anomalies associated with central Pacific El Niño force changes in the extra-tropical atmospheric circulation.

The increase in the global average temperature anomaly and the divergence of land and sea surface temperatures also coincided with two significant changes in global average cloud cover.

This basin - wide change in the Atlantic climate (both warming and cooling) induces a basin - scale sea surface temperature seesaw with the Pacific Ocean, which in turn modifies the position of the Walker circulation (the language by which the tropical basins communicate) and the strength of the Pacific trade winds.

Normally you can run GCM for centuries with a stable realistic surface temperature, but take the CO2 out, and in 5 - 10 years it has dropped 30 C in global average temperature and is half - covered in sea ice due to a powerful water vapor feedback in response to any global temperature change.

Elsewhere on this site there is a graph of overall ocean heat content which is building indicating that while the sst is decreasing slightly the overall ocean is warming, It is likely that this overall ocean warming which has nothing to do with changes to the atmospheric temperature because it is the sea surface and not the deep ocean that is in contact with the atmosphere is what is resulting in the overall rise in atmospheric CO2 concentration which is currenly increasing at 2ppmv / year.

The most important bias globally was the modification in measured sea surface temperatures associated with the change from ships throwing a bucket over the side, bringing some ocean water on deck, and putting a thermometer in it, to reading the thermometer in the engine coolant water intake.

There are secular changes in cloud associated with variable sea surface temperature — that vary from weeks to millennia creating warmer or cooler surface conditions.

In both GOGA and TOGA simulations, the surface temperature over sea ice can respond to both prescribed sea ice and simulated atmospheric circulation changes, which explains differences with observations

Regional circulation patterns have significantly changed in recent years.2 For example, changes in the Arctic Oscillation can not be explained by natural variation and it has been suggested that they are broadly consistent with the expected influence of human - induced climate change.3 The signature of global warming has also been identified in recent changes in the Pacific Decadal Oscillation, a pattern of variability in sea surface temperatures in the northern Pacific Ocean.4

However, a confident assessment of human influence on hurricanes will require further studies using models and observations, with emphasis on distinguishing natural from human - induced changes in hurricane activity through their influence on factors such as historical sea surface temperatures, wind shear, and atmospheric vertical stability.

Monaghan et al. further note «recent literature suggests there has been little overall change in Antarctic near - surface temperature during the past 5 decades» and «the absence of widespread Antarctic temperature increases is consistent with studies showing little overall change in other Antarctic climate indicators during the past 50 years such as sea ice area and snowfall.»

One of the most striking changes is the decline of sea ice concurrent with changes in atmospheric circulation and increased surface air temperature.

Doing this on a year - to - year basis shows NO apparent correlation with the absolute «globally and annually averaged land and sea surface temperature anomaly» (i.e. HadCRUT3), but does show a weak correlation with the CHANGE in temperature from the previous year, for example:

There is a recognised bias in the dataset from the period around WWII associated with changes in the nationality of the shipping fleets taking sea surface temperature measurements - the main contributor to the temperature record - due to the war.

Based on the understanding of both the physical processes that control key climate feedbacks (see Section 8.6.3), and also the origin of inter-model differences in the simulation of feedbacks (see Section 8.6.2), the following climate characteristics appear to be particularly important: (i) for the water vapour and lapse rate feedbacks, the response of upper - tropospheric RH and lapse rate to interannual or decadal changes in climate; (ii) for cloud feedbacks, the response of boundary - layer clouds and anvil clouds to a change in surface or atmospheric conditions and the change in cloud radiative properties associated with a change in extratropical synoptic weather systems; (iii) for snow albedo feedbacks, the relationship between surface air temperature and snow melt over northern land areas during spring and (iv) for sea ice feedbacks, the simulation of sea ice thickness.

These frequency changes are consistent with other paleoclimate indicators from the tropical North Atlantic, in particular, sea surface temperature variations.