Sentences with phrase «faster than surface temperatures»

Not exact matches

By measuring the remaining difference — the 20,000 - year old ice deep in the West Antarctic ice sheet is about 1 degree Celsius cooler than the surface — the scientists were able to estimate the original temperature based on how fast pure ice warms up.
While at single buoys the water may have warmed faster or slower than other locations, globally, there is a clear trend toward higher sea surface temperatures.
The research published in Nature Communications found that in the past, when ocean temperatures around Antarctica became more layered - with a warm layer of water below a cold surface layer - ice sheets and glaciers melted much faster than when the cool and warm layers mixed more easily.
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.
(1) The warm sea surface temperatures are not just some short - term anomaly but are part of a long - term observed warming trend, in which ocean temperatures off the US east coast are warming faster than global average temperatures.
«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.
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.
If not, and the upper troposphere warms less rapidly than the surface, the temperature difference relevant for hurricane strength will increase that much faster.
«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.
The global average surface temperature has risen between 0.6 °C and 0.7 °C since the start of the twentieth century, and the rate of increase since 1976 has been approximately three times faster than the century - scale trend.»
Global warming does not mean no winter, it means winter start later, summer hotter, as Gary Peters said «The global average surface temperature has risen between 0.6 °C and 0.7 °C since the start of the twentieth century, and the rate of increase since 1976 has been approximately three times faster than the century - scale trend.»
Second, as Gavin pointed out, the land - ocean temperature index tends to underestimate the truth because it's based on sea surface temperature rather than air temperature, while the meteorological - station index temperature tends to overestimate the truth because land warms faster than ocean.
Dr. Roz Pidcock, PhD in physical oceanography from the University of Southampton (http://www.carbonbrief.org/blog/2014/10/an-in-depth-look-at-the-oceans-climate-change-and-the-hiatus/): «Over the last 15 years or so, surface temperatures have risen much slower than in previous decades, even though we're emitting greenhouse gases faster than we were before.»
The increase in these winds has caused eastern tropical Pacific cooling, amplified the Californian drought, accelerated sea level rise three times faster than the global average in the Western Pacific and has slowed the rise of global average surface temperatures since 2001.
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.
If the surface temperature is slow to catch up to that imbalance then the energy imbalance remains large, and we can have sufficient net heating to cause much faster changes in the ice sheets than from the comparatively smaller imbalances caused by the changes in Earth's orbit associated with the glacial periods in the past.
If a significant fraction of this heat lost from the ocean went into the atmosphere one might have expected the surface air temperature to have increased faster during this period than during the subsequent period of the 1990s when the ocean heat content gained > 5 X 10 ^ 22 J, but this is not what was observed (see reference Figure 2.7 c in the IPCC TAR Working group I).
The land - only «amplification» factor was actually close to 0.95 (+ / -0.07, 95 % uncertainty in an individual simulation arising from fitting a linear trend), implying that you should be expecting that land surface temperatures to rise (slightly) faster than the satellite values.
Apparently, in the last decade or so, surface and lower troposphere temperature has risen more slowly than the long term trend, but ocean heat content to 2 km has risen faster than the previous two decades.
Yet measurements from more than 3600 automated buoys throughout the ocean that dive down a mile and a quarter and take detailed temperature and salinity profiles every ten days show that the deeper strata are warming faster than the near - surface strata.
100 years of 0.5 W / m2 energy imbalance can only raise ocean basin temperature 0.2 C which can not raise air temperature more than 0.2 C. Temperature rise can be temporarily higher in the ocean's surface if energy is being added faster at the surface than it can diffuse downward to the otemperature 0.2 C which can not raise air temperature more than 0.2 C. Temperature rise can be temporarily higher in the ocean's surface if energy is being added faster at the surface than it can diffuse downward to the otemperature more than 0.2 C. Temperature rise can be temporarily higher in the ocean's surface if energy is being added faster at the surface than it can diffuse downward to the oTemperature rise can be temporarily higher in the ocean's surface if energy is being added faster at the surface than it can diffuse downward to the ocean floor.
Surface temperatures over land regions have warmed at a faster rate than over the oceans in both hemispheres.
At this computer - predicted «hot spot» high above the Earth, the UN's models project that greenhouse warming will cause temperature to rise over the decades at a rate up to three times faster than at the surface
Many agricultural regions warm at a rate that is faster than the global mean surface temperature (including oceans) but slower than the mean land surface temperature, leading to regional warming that exceeds 0.5 °C between the +1.5 and +2.0 °C Worlds.
Models are very consistent, as this article demonstrates, in showing a significant difference between surface and tropospheric trends, with tropospheric temperature trends warming faster than the surface.
However, another important recent paper by Kevin Cowtan and Robert Way showed that the global surface temperature rise has not slowed as much as some previously thought; in fact, the surface warming since 1997 happened more than twice as fast as previous estimates.»
For one thing, it's not «hot» (just expected to have a slightly faster temperature rate increase than the surface).
It may be a consequence of a period in which surface air temperature rose faster over land than it did over sea.
What the report says about climate change and the Arctic: Over the past 50 years, near - surface air temperatures across Alaska and the Arctic have increased at a rate more than twice as fast as the global average.
When heat stays nearer the ocean surface, forcing raises surface temperature faster than when more of the heat is distributed at lower depths.
The results here reveal a larger picture — that the western tropical Indian Ocean has been warming for more than a century, at a rate faster than any other region of the tropical oceans, and turns out to be the largest contributor to the overall trend in the global mean sea surface temperature (SST)»
Here the land temperatures warm and cool faster than the ocean sea surface temperatures.
(1) The warm sea surface temperatures are not just some short - term anomaly but are part of a long - term observed warming trend, in which ocean temperatures off the US east coast are warming faster than global average temperatures.
Since the 1980s, many climatologists have claimed that human activity has caused the near - surface air temperature to rise faster and higher than ever before in history.
Craig King - Further to Bob Loblaw's comments; that global surface air temperatures are warming faster than upper ocean temperatures is well - observed and completely uncontroversial.
Only if the oceans freeze across their entire surfaces thereby causing the hydrological cycle to cease or if the sun puts in energy faster than it can be pumped upward by the hydrological cycle will the basic temperature equilibrium derived from the properties of water and the density and pressure of the atmosphere fail to be maintained.
atmospheric absorption by CO2 and water vapor increases, reducing the solar heating at the surface, and surface evaporation increases faster with temperature than the transfer of sensible heat (due to the Clausius - Clapeyron relation), both of which tend to reduce the diurnal cycle.
A positive feedback will re-inforce the trend and cause surface temperature (globally / temporally averaged, of course) to rise even faster than it would have without the feedback.
The results of NCAR's CMIP5 calculations are that after 1970, the simulated surface temperature increases faster than the data, so that by 2005 the model anomaly is 0.4 oC larger than the observed anomaly.
The results of NCAR's CMIP5 calculations are that after 1970, the simulated surface temperature increases faster than the data, so that by 2005 the model anomaly is 0.4 deg C larger than the observed anomaly.
That's a key reason surface temperatures haven't appeared to warm as fast as many had expected in the past ten years — although ocean warming has sped up, and sea level rise has accelerated more than we thought, and Arctic sea ice has melted much faster than the models expected, as have the great ice sheets in Greenland and Antarctica
And that, combined with the current record ocean temperatures — and faster than expected warming of the ocean's surface layer — means we can expect a continuation of the unexpectedly fast loss of Arctic sea ice and of land - locked ice in Greenland and Antarctica.
Climate models predict, that as a consequence of global warming, the TLT will warm about 20 % faster than the Earth's surface temperature.
Of course there is uncertainty in the trends (both from fitting the OLS line, + / -0.6 ºC, and structurally, since RSS has slightly different numbers), and there is no expectation that TLT and surface air temperature should have identical trends (overall, TLT should be increasing a little faster than SAT — but this is also subject to noise over relatively short periods).
Part of the explanation is probably due to the fact that temperatures are more stable in the Southern hemisphere (since land heats and cools faster than ocean, and there is much more ocean in the southern half of the globe), but the surface temperature records do not show such a north - south differential.
In the almost sure knowledge that the earth never experienced a runaway greenhouse even with ancient CO2 levels 10 to 20 times greater than today, these anti-science scoundrels insist with a «high level of confidence» that this amplification is real and it's based on nothing more than faster than expected surface temperature rise in the past few decades which can be TOTALLY explained by multi-decadal cyclic behavior in ocean currents, trade winds, and / or solar magnetic activity causing small global average albedo changes.
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