Sentences with phrase «ocean surface temperatures at»

«2015 is likely to be the hottest year on record with ocean surface temperatures at the highest level since measurements began.

Not exact matches

It comes down to what every scientist knows too well — analyzing data collected by different methods, and at different times, is a tricky business because some methods of collecting ocean surface temperatures are more accurate than others.

Both the 2005 and 2010 droughts were the result of a «very, very unusual» weather pattern linked to higher sea surface temperatures in the Atlantic Ocean, said lead author Simon Lewis, a tropical forests expert at the University of Leeds.

Tamsin Edwards, a climatologist at the Open University in the UK, says it is too early to tell, since changes in the PDO can only be detected through statistical analysis of large amounts of data on ocean surface temperatures.

Land and Ocean Combined: The combined average temperature over global land and ocean surfaces for August 2014 was the record highest for the month, at 61.45 °F (16.35 °C), or 1.35 °F (0.75 °C) above the 20th century average of 60.1 °F (15.6Ocean Combined: The combined average temperature over global land and ocean surfaces for August 2014 was the record highest for the month, at 61.45 °F (16.35 °C), or 1.35 °F (0.75 °C) above the 20th century average of 60.1 °F (15.6ocean surfaces for August 2014 was the record highest for the month, at 61.45 °F (16.35 °C), or 1.35 °F (0.75 °C) above the 20th century average of 60.1 °F (15.6 °C).

«With its dual view measurement capability, it will be used to derive accurate surface temperature, a key parameter at the ocean - atmosphere boundary.

Zehner says that the agency plans to build and launch at least five «sentinel» satellites to monitor not only trace gases that indicate pollution in the atmosphere, but also the surface temperature of the oceans, the movement of ice and the shifting of land masses.

This elevated body temperature also allows more rapid growth, reducing the time they are vulnerable at the ocean surface.

Scientists working off the California coast use chemical - sniffing probes, robotically driven subs, and seafloor - tethered temperature sensors to watch flows of lava pave over a once - thriving ecosystem at hydrothermal vents several kilometers below the ocean's surface.

They also looked at recent ocean conditions, in particular the temperature of the sea surface near Japan and Florida the winter before a given breeding season.

«Since oxygen concentrations in the ocean naturally vary depending on variations in winds and temperature at the surface, it's been challenging to attribute any deoxygenation to climate change.

The CPC officially considers it an event when the sea surface temperatures in a key region of the ocean reach at least 0.5 °C, or about 1 °F, warmer than average.

Venus may have had a shallow liquid - water ocean and habitable surface temperatures for up to 2 billion years of its early history, according to computer modeling of the planet's ancient climate by scientists at NASA's Goddard Institute for Space Studies (GISS) in New York.

That's because the IPCC models only take into account temperature changes at the surface of glaciers, but not the rapid melting that occurs when glaciers calve and break up into the ocean, Rignot said.

The June 2013 globally - averaged temperature across ocean surfaces was the 10th highest in the 134 - year period of record, at 0.48 °C (0.86 °F) above the 20th century average.

Note that we've got a paper soon to come out in «The Cryosphere» (and we'll have a poster at AGU) looking at recent «Arctic Amplification» that you discuss (the stronger rise in surface air temperatures over the Arctic Ocean compared to lower latitudes).

With ENSO - neutral conditions present during the first half of 2013, the January — June global temperature across land and ocean surfaces tied with 2003 as the seventh warmest such period, at 0.59 °C (1.06 °F) above the 20th century average.

However, for the globe as a whole, surface air temperatures over land have risen at about double the ocean rate after 1979 (more than 0.27 °C per decade vs. 0.13 °C per decade), with the greatest warming during winter (December to February) and spring (March to May) in the Northern Hemisphere.

For NOAA's Climate Prediction Center to make that declaration, the sea - surface temperature in an eastern - central segment of the ocean called the Nino 3.4 must be 0.5 °C (0.9 °F) above normal for at least a month — and be forecasted to last that way for at least three months.

The observed fact that temperatures increases slower over the oceans than over land demonstrates that the large heat capacity of the ocean tries to hold back the warming of the air over the ocean and produces a delay at the surface but nevertheless the atmosphere responds quit rapidly to increasing greenhouse gases.

Interestingly, those same winds are thought to be part of the mechanism burying heat in the Pacific Ocean, leading to the slower pace of rising temperatures at the planet's surface in recent decades.

This is not only in excellent agreement with the observed temperature changes at the surface (blue stars), it also correctly reproduces the observed heat storage in the oceans — a strong indicator that the model's heat budget is correct.

Looking only at the present - day sea - surface temperatures will tell little until it is put in perspective with the assumed normal ocean conditions.

Some may even still have magma oceans today, whether because they are so close to their stars that silicate vaporizes at the equilibrium temperatures or through massive greenhouse warming of their surfaces.

With the contribution of such record warmth at year's end and with 10 months of the year record warm for their respective months, including the last 8 (January was second warmest for January and April was third warmest), the average global temperature across land and ocean surface areas for 2015 was 0.90 °C (1.62 °F) above the 20th century average of 13.9 °C (57.0 °F), beating the previous record warmth of 2014 by 0.16 °C (0.29 °F).

The former is likely to overestimate the true global surface air temperature trend (since the oceans do not warm as fast as the land), while the latter may underestimate the true trend, since the air temperature over the ocean is predicted to rise at a slightly higher rate than the ocean temperature.

South of Spitzbergen, the oceans have been ice free the past 2 winters, reason being, the warm waters from the Gulf Stream are travelling further north, and closer to the ocean surface, only 25 meters at the last measurement, The ocean temperature has been +2 C instead of -2 C.

Looking at the grafs, i notice that ocean heat content jumps about the time surface temperatures fall below ensemble mean.

At that point in geological history, global surface temperatures were rising naturally with spurts of rapid regional warming in areas like the North Atlantic Ocean.

At this time the E-W sea surface temperature gradients in both the Pacific and Indian Oceans increased [29], [31] intensifying the E-W moisture transport in the tropics, which greatly increased rainfall variability both on a precession and an ENSO (El Niño Southern Oscillation) time - scales.

Scientists are currently interested in why temperatures at the surface of the ocean have been rising slower than in previous decades, even though we're emitting greenhouse gases faster than ever.

It is no coincidence that shifts in ocean and atmospheric indices occur at the same time as changes in the trajectory of global surface temperature.

After all, if average surface temperature is 15 C, wouldn't you expect land and ocean below the surface to equilibrate at roughly that temperature (with a slightly rising gradient to account for the flow of Earth's internal heat)?

In the first plot, relating to ocean temperatures, it is clearly warmer about 1000 years ago but current temperatures are clearly warmer at the surface.

There is a difference between peaks and valleys in noisy processes (1998 surface air temperature, 2007 record minimum ice, or shipping at a few small areas on the edges of the Arctic ocean) and CO2 forcing driven trends, especially when different measures.

But if something causes heat to be transferred from the ocean surface into its deeps more rapidly than usual, ocean surface temperatures could rise more slowly, not rise at all, or even fall despite the increased backradiation.

First, global mean surface temperature depends on the quantity of heat stored at the surface of the earth (earth, lower atmosphere, and the mixed layer of the oceans).

«The combined average temperature over global land and ocean surfaces tied with 2010 as the highest on record for April, at 58.09 °F (14.47 °C) or 1.39 °F (0.77 °C) above the 20th century average.»

Even if ocean surface temperatures fall as in (3), heat continues to accumulate in the earth system until the amount of outgoing radiation at the top of atmosphere equals the amount of incoming radiation there.

Global average air temperature near the surface is dominated by the ocean (because it covers two thirds of the planet), particularly at low latitudes.

This is not only in excellent agreement with the observed temperature changes at the surface (blue stars), it also correctly reproduces the observed heat storage in the oceans — a strong indicator that the model's heat budget is correct.

Temperature tends to respond so that, depending on optical properties, LW emission will tend to reduce the vertical differential heating by cooling warmer parts more than cooler parts (for the surface and atmosphere); also (not significant within the atmosphere and ocean in general, but significant at the interface betwen the surface and the air, and also significant (in part due to the small heat fluxes involved, viscosity in the crust and somewhat in the mantle (where there are thick boundary layers with superadiabatic lapse rates) and thermal conductivity of the core) in parts of the Earth's interior) temperature changes will cause conduction / diffusion of heat that partly balances the differentiTemperature tends to respond so that, depending on optical properties, LW emission will tend to reduce the vertical differential heating by cooling warmer parts more than cooler parts (for the surface and atmosphere); also (not significant within the atmosphere and ocean in general, but significant at the interface betwen the surface and the air, and also significant (in part due to the small heat fluxes involved, viscosity in the crust and somewhat in the mantle (where there are thick boundary layers with superadiabatic lapse rates) and thermal conductivity of the core) in parts of the Earth's interior) temperature changes will cause conduction / diffusion of heat that partly balances the differentitemperature changes will cause conduction / diffusion of heat that partly balances the differential heating.

Now since relative humidity remains roughly constant at the ocean surface and the air's capacity to hold water increases with temperature, relative humidity will actually decrease over land, particularly as one enters the continental interiors.

Looking at the surface temperature and the ocean heat content changes together though allows us to pin down the total unrealised forcing (the net radiation imbalance) and demonstrate that the models are consistent with both the surface and ocean changes.

@ 48 If your speculation is correct, I assume that another consequence would be that, if / when concentrations of greenhouse gases start to drop, corresponding reductions in surface ocean / land temperatures would take place at a much slower rate than would otherwise be the case: the surplus heat stored in the deep ocean will gradually make its way to the ocean surface, and continue to warm the atmosphere for decades, if not longer.

The change in radiation balance is more heating of the oceans at one side (specifically high in the subtropics, as expected), but more heat released at higher altitudes, thus somewhere acting as a net negative feedback to higher sea surface temperatures.

Long waves (infrared) light from the sun, GHGs, clouds, are trapped at the surface of the oceans, directly leading to increased «skin» temperature, more water vapor (a very effective GHG), faster convection (with more loss of heat to space in the tropics),... How each of them converts to real regional / global temperature increases / decreases is another point of discussion...

That solar activity is largely underestimated was a topic at the SORCE meeting last October: «Widespread empirical evidence from the extensive Earth climate datasets suggests the presence of an 11 - year solar signal of order 0.1 K in surface, atmospheric, and ocean temperatures.

We must be at cross purposes here Gavin because a much more well mixed ocean would be disastrous for surface layer temperatures and the impact on the Troposphere.

The former is likely to overestimate the true global surface air temperature trend (since the oceans do not warm as fast as the land), while the latter may underestimate the true trend, since the air temperature over the ocean is predicted to rise at a slightly higher rate than the ocean temperature.