Not exact matches
In the study, scientists
from the Potsdam - based Alfred Wegener Institute, Helmholtz Centre for Polar and Marine Research, and Harvard University show that sea
surface temperatures reconstructed
from climate archives vary to a much greater extent on long time scales
than simulated by climate models.
Temperatures inside the earth are much hotter
than on the
surface and can range
from 1,470 to 2,200 degrees Fahrenheit (800 to 1,200 degrees Celsius).
The companion lies a bit farther
from the star
than Pluto is
from the sun; it has a
surface temperature of about 1400 degrees Fahrenheit, and its mass is 2 percent of the sun's and 20 times Jupiter's.
As of March 2013,
surface waters of the tropical north Atlantic Ocean remained warmer
than average, while Pacific Ocean
temperatures declined
from a peak in late fall.
Long - term data
from a wind farm at San Gorgonio, California, confirmed his earlier model predictions:
surface temperatures behind the wind turbines were higher
than in front during the night, but as much as 4 °C lower by day.
Pielke, who said one issue ignored in the paper is that land
surface temperature measurements over time show bigger warming trends
than measurements
from higher up in a part of the atmosphere called the lower troposphere, and that still needs more explanation.
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.
Past eclipses have revealed that the corona's
temperature distribution is patchy: rather
than a smooth transition
from relatively cool to sizzling hot, the corona has areas of higher and cooler
temperatures that don't seem to depend on their proximity to the sun's
surface.
Nathaniel Johnson and Shang - Ping Xie at the University of Hawaii studied satellite and rain - gauge data
from the last 30 years and found that sea
surface temperatures in the tropics now need to be about 0.3 °C higher
than they did in 1980 before the air above rises and produces rain (Nature Geoscience, DOI: 10.1038 / ngeo1008).
Four of these new planets are less
than 2.5 times the size of Earth and orbit in their sun's habitable zone, defined as the range of distance
from a star where the
surface temperature of an orbiting planet may be suitable for life - giving liquid water.
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 America.
The tiny diamond probes can measure
temperatures ranging
from 120 K to 900 K -LRB--- 153 °C to 627 °C)-- as cold as the poles of Mars and almost 200 ° hotter
than the
surface of Venus.
In the space of just four minutes, the probe slowed
from an entry speed of 170 000 kilometres an hour to just 400 km / h, decelerating at up to 250 g and turning into a fireball more
than twice the
temperature of the Sun's
surface.
Nevertheless, Earthlings would not mistake Gliese 581g for their home planet — in addition to its so - called super-Earth dimensions, it orbits a star far smaller and dimmer
than the sun, and its average
surface temperatures would vary dramatically,
from well below freezing on its night side to scorching hot on the day side.
I am very cuious if you found a variance between Upper Air and
Surface warming... I calculated total amospheric refraction temperatures, ie from data extracted by analyzing optical effects, some of my results show an impressive yearly warming trend, much stronger than the surface bas
Surface warming... I calculated total amospheric refraction
temperatures, ie
from data extracted by analyzing optical effects, some of my results show an impressive yearly warming trend, much stronger
than the
surface bas
surface based one.
«Because the TRAPPIST - 1 star is very old and dim, the
surfaces of the planets have relatively cool
temperatures by planetary standards, ranging
from 400 degrees Kelvin (260 degrees Fahrenheit), which is cooler
than Venus, to 167 degrees Kelvin -LRB--159 degrees Fahrenheit), which is colder
than Earth's poles,» Barr said.
Upon your arrival to the second planet
from the sun, you'd be greeted by
surface temperatures comparable to those in a pizza oven, and a carbon - dioxide atmosphere more
than 90 times denser
than ours here on Earth.
The size of the
temperature increase was calculated
from thousands of measurements
from more
than 6,000 weather stations, ship - and buoy - based observations of sea
surface temperatures, and measurements across Antarctic research stations.
Cassini first revealed active geological processes on Enceladus in 2005 with evidence of an icy spray issuing
from the moon's south polar region and higher -
than - expected
temperatures in the icy
surface there.
The new study used calculations and models to show that the cooling
from this change caused
surface temperatures to increase about 25 percent more slowly
than they would have otherwise, due only to the increases in carbon dioxide and other greenhouse gases.
The physical processes by which energy might be added into the glacier material include: (A) convection between the glacier
surfaces and local surrounding atmosphere and water, (B) direct radiation onto the exposed
surfaces of the material, (C) addition of material that is at a
temperature higher
than the melting
temperature onto the top of the glacier (rain, say), (D) Sublimation of the ice directly into the atmosphere, and (E) conduction into the material
from the contact areas between the glacier and surrounding solid material.
It is extremely likely that more
than half of the observed increase in global average
surface temperature from 1951 to 2010 was caused by the anthropogenic increase in greenhouse gas concentrations and other anthropogenic forcings together.
Jacob (and many, many others) seem to think that if model A, when run
from 1900 to present, predicts the relatively flat, global average
surface temperature record over the past decade, is a better match to reality
than model B which does not.
AR5: It is extremely likely that more
than half of the observed increase in global average
surface temperature from 1951 to 2010 was caused by the anthropogenic increase in greenhouse gas concentrations and other anthropogenic forcings together.
More
than 95 % of the 5 yr running mean of the
surface temperature change since 1850 can be replicated by an integration of the sunspot data (as a proxy for ocean heat content), departing
from the average value over the period of the sunspot record (~ 40SSN), plus the superimposition of a ~ 60 yr sinusoid representing the observed oceanic oscillations.
When air
surface temperatures are higher
than the
surface water
temperature, then then the upwelling water will pick up energy
from the air.
Item 8 could be confusing in having so many messages: «It is extremely likely that more
than half of the observed increase in global average
surface temperature from 1951 to 2010 was caused by the anthropogenic increase in greenhouse gas... The best estimate of the human - induced contribution to warming is similar to the observed warming over this period....
Because the wavelength of emitted EM radiation varies with the
temperature of the source, it does so in the form of longer - wave IR
than that received
from the Sun — the Earth's
surface is significantly cooler
than that of the Sun.
El Niño: A phenomenon in the equatorial Pacific Ocean characterized by a positive sea
surface temperature departure
from normal (for the 1971 - 2000 base period) in the Niño 3.4 region greater
than or equal in magnitude to 0.5 degrees C (0.9 degrees Fahrenheit), averaged over three consecutive months.
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.
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 famous «255 K» value for no greenhouse effect on Earth is an example of this, although in reality if we got that cold you would expect a snowball - like Earth and a much higher albedo
from the increased brightness of the
surface... and thus the «no - greenhouse
temperature» would be even colder
than 255 K.
If not for the
temperature discontinuity, then the radiation coming
from the
surface would be less
than what fits the linear T ^ 4 pattern, with the biggest difference at angles near vertical.
Before allowing the
temperature to respond, we can consider the forcing at the tropopause (TRPP) and at TOA, both reductions in net upward fluxes (though at TOA, the net upward LW flux is simply the OLR); my point is that even without direct solar heating above the tropopause, the forcing at TOA can be less
than the forcing at TRPP (as explained in detail for CO2 in my 348, but in general, it is possible to bring the net upward flux at TRPP toward zero but even with saturation at TOA, the nonzero skin
temperature requires some nonzero net upward flux to remain — now it just depends on what the net fluxes were before we made the changes, and whether the proportionality of forcings at TRPP and TOA is similar if the effect has not approached saturation at TRPP); the forcing at TRPP is the forcing on the
surface + troposphere, which they must warm up to balance, while the forcing difference between TOA and TRPP is the forcing on the stratosphere; if the forcing at TRPP is larger
than at TOA, the stratosphere must cool, reducing outward fluxes
from the stratosphere by the same total amount as the difference in forcings between TRPP and TOA.
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.
I am very cuious if you found a variance between Upper Air and
Surface warming... I calculated total amospheric refraction temperatures, ie from data extracted by analyzing optical effects, some of my results show an impressive yearly warming trend, much stronger than the surface bas
Surface warming... I calculated total amospheric refraction
temperatures, ie
from data extracted by analyzing optical effects, some of my results show an impressive yearly warming trend, much stronger
than the
surface bas
surface based one.
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 overall spectrum emitted by the Earth is far
from a planck distribution basically because the last diffusion
surface varies with wavelength, opaque lines being emitted
from the TOA, at its local
temperature, much lower
than the ground.
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.
Ray: «The IR flux
from the warmer
surface excites much of the CO2 — much more
than would be excited at thermal equilibrium at the
temperature of the atmospheric layer where the photon is absorbed.»
In that case it does not matter how the water is heated but simply the
temperature of the layer of
surface water down to a few multiples of the inverse of the IR absorption coefficient which is I think varies
from around a few cm to less
than 1 mm with increasing wavelength.
The observations
from the Laptev Sea in 2007 indicate that the bottom water
temperatures on the mid-shelf increased by more
than 3 C compared to the long - term mean as a consequence of the unusually high summertime
surface water
temperatures.
[Response: Estimates of the error due to sampling are available
from the very high resolution weather models and
from considerations of the number of degrees of freedom in the annual
surface temperature anomaly (it's less
than you think).
Any energy
from this source absorbed by CO2 and subsequently reradiated to the
surface can do no more
than restore part of the energy lost, and its concomitant drop in
temperature.
This result is consistent with land
surface temperatures reconstructed
from tree rings, other terrestrial proxies, and documentary evidence also indicating greater regional variability
than simulated by models at decadal and longer timescales (33 — 35).
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.
This means that the «pause,» or whatever you want to call it, in the rise of global
surface temperatures is even more significant
than it is generally taken to be, because whatever is the reason behind it, it is not only acting to slow the rise
from greenhouse gas emissions but also the added rise
from changes in aerosol emissions.
In the entirely subjective opinion of a particular group of IPCC authors, it's «extremely likely» (95 % certain) that «more
than half of the observed increase in global average
surface temperature from 1951 to 2010» was caused by human - generated greenhouse gas emissions (see the bottom of p. 13 here).
In 2013, the Intergovernmental Panel on Climate Change Fifth Assessment Report stated a clear expert consensus that: «It is extremely likely [defined as 95 - 100 % certainty] that more
than half of the observed increase in global average
surface temperature from 1951 to 2010 was caused by the anthropogenic [human - caused] increase in greenhouse gas concentrations and other anthropogenic forcings together.»
That warming on descent also reduces the rate of
temperature decline with height which suppresses convection
from the
surface so that the
surface on the day side then warms more
than it otherwise would have done and the
surface on the night side cools less quickly
than it otherwise would have done..