With an average surface temperature of -55 ° Celsius, water itself can not exist as a liquid on Mars, but concentrated solutions of perchlorate could survive these low temperatures.»
I have no way of knowing the influence of «family relationships» between models, but it is clear that a large part of the apparent correlation of projected warming rate
with average surface temperature is due to more runs for some models than for others, combined with the close relationships between certain models.
With an average surface temperature of 21.1 C and energy emission excluding latent of 425Wm - 2 it would try to change the surface to 426.5Wm - 2 which is a temperature of about 21.35 C or a 0.25 C increase.
The Dickey & Marcus 2010 paper related to the ngLOD relationship
with average surface temperature is interesting in itself (and this seems to be the origin of the observbed 1930's divergence between the two):
Not exact matches
With an El Niño now under way — meaning warm
surface waters in the Pacific are releasing heat into the atmosphere — and predicted to intensify, it looks as if the global
average surface temperature could jump by around 0.1 °C in just one year.
Ocean Only: The global ocean
surface temperature for the year to date was 0.99 °F (0.55 °C) above
average, tying
with 2010 as the second warmest such period on record, behind only 1998.
In the latter half of the decade, La Niña conditions persisted in the eastern and central tropical Pacific, keeping global
surface temperatures about 0.1 degree C colder than
average — a small effect compared
with long - term global warming but a substantial one over a decade.
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.
This year, the event will benefit from an unseasonably warm winter,
with satellite data from the National Oceanic and Atmospheric Administrationplacing the
average water
surface temperature around Coney Island in December at about 48 degrees Fahrenheit (8.9 degrees Celsius).
With an
average daily
temperature around -50 °C, the
surface of Mars is permanently frozen to a depth of a kilometre or more.
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
average global sea
surface temperature tied
with 2010 as the second highest for January — August in the 135 - year period of record, behind 1998, while the
average land
surface temperature was the fifth highest.
As New Scientist has previously reported, this means we are passing an ominous milestone,
with global
surface temperatures now more than 1 °C above the pre-industrial
average.
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.
With records dating back to 1880, the global
temperature across the world's land and ocean
surfaces for August 2014 was 0.75 °C (1.35 °F) higher than the 20th century
average of 15.6 °C (60.1 °F).
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 aver
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 aver
with 2003 as the seventh warmest such period, at 0.59 °C (1.06 °F) above the 20th century
average.
The western tropical Pacific is known as the «warm pool»
with the highest sea
surface temperature (SST) in the world (on
average).
Annual
average GCR counts per minute (blue - note that numbers decrease going up the left vertical axis, because lower GCRs should mean higher
temperatures) from the Neutron Monitor Database vs. annual
average global
surface temperature (red, right vertical axis) from NOAA NCDC, both
with second order polynomial fits.
seems to be incompatible
with the statement from his Annual review paper from 2000 (see abstract below) that: «The
average surface temperature of the continents has increased by about 1.0 K over the past 5 centuries; half of this increase has occurred in the twentieth century alone.»
Figure 2: The data (green) are the
average of the NASA GISS, NOAA NCDC, and HadCRUT4 monthly global
surface temperature anomaly datasets from January 1970 through November 2012,
with linear trends for the short time periods Jan 1970 to Oct 1977, Apr 1977 to Dec 1986, Sep 1987 to Nov 1996, Jun 1997 to Dec 2002, and Nov 2002 to Nov 2012 (blue), and also showing the far more reliable linear trend for the full time period (red).
Below -
average sea -
surface temperatures commonly occur following an El Niño and appear to be associated
with weather events opposite that of El Niño.
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
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
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).
Most of Earth's land
surfaces were warmer than
average or much warmer than
average, according to the Land & Ocean
Temperature Percentiles map above,
with record warmth notable across most of equatorial and northeastern South America and parts of southeastern Asia.
Where «dT» is the change in the Earth's
average surface temperature, «λ» is the climate sensitivity, usually
with units in Kelvin or degrees Celsius per Watts per square meter (°C / [W - m - 2]-RRB-, and «dF» is the radiative forcing.
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.
These findings are consistent
with evidence that the effects of climate change have increased
average surface temperatures around the world and shortened winter seasons.
Where «dT» is the change in the Earth's
average surface temperature, «λ» is the climate sensitivity, usually
with units in Kelvin or degrees Celsius per Watts per square meter (°C / [W m - 2]-RRB-, and «dF» is the radiative forcing, which is discussed in further detail in the Advanced rebuttal to the «CO2 effect is weak» argument.
The July
temperature for the mid-troposphere (roughly 2 miles to 6 miles above the
surface) tied
with 2010 as the second highest for July in the 1979 — 2016 record, at 0.67 °F above the 1981 - 2010
average, as analyzed by UAH.
The September globally
averaged sea
surface temperature was 1.33 °F above the 20th century monthly
average of 61.1 °F, tying
with 2014 as the second highest global ocean
temperature for September in the 1880 — 2016 record, behind 2015 by 0.16 °F.
The
average temperature of asteroids (about 150 — 200 kelvin)-LSB--100 °F to -190 °F] at this distance from the Sun should cause
surface ice to sublimate away in a matter of a few years or less, which is inconsistent
with the billions of years that Themis is thought to have spent at its current location.»
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La Niña is the positive phase of the El Niño Southern Oscillation and is associated
with cooler than
average sea
surface temperatures in the central and eastern tropical Pacific Ocean.
Actual sea
surface water
temperatures close to shore at Mangamaunu can vary by several degrees compared
with these open water
averages.
Actual sea
surface water
temperatures close to shore at DuckPool can vary by several degrees compared
with these open water
averages.
Actual sea
surface water
temperatures close to shore at Nanjizal can vary by several degrees compared
with these open water
averages.
Actual sea
surface water
temperatures close to shore at Coxos can vary by several degrees compared
with these open water
averages.
Actual sea
surface water
temperatures close to shore at Dabki can vary by several degrees compared
with these open water
averages.
Fig. 4 The «Cold Sun» forecast of Vahrenholt and Lüning compared
with global
surface temperatures of the British Meteorological Service (HadCRUT data), moving
average over 23 months to end of October 2016.
For example, «Carbon dioxide in the atmosphere, along
with a handful of other gases, plays a central role in determining the
average surface temperature of our planet.
In there, you will see (fig 17) a comparison of the
average surface temperatures of the model (in different seasons)
with the CRU data.
Fig. 5 The «Cold Sun» forecast of Vahrenholt and Lüning compared
with global
surface temperatures of the British Meteorological Service (HadCRUT data), running
average over 37 months.
Since global
average surface temperature exhibits a long - term sinusoidal trend, one can display either a positive or negative trend
with careful start and end point choices.
A question: the article leaves one
with the impression that when (not if) there is a return to some strong El Niño events that
surface temperature averages will resume their rise.
[Response: They measure something different (MSU - TLT is a weighted
average of
temperatures reaching from the
surface to 10 km, peaking at around ~ 4 km and
with significant influence from
surface type depending on elevation and polar latitude).
The standard assumption has been that, while heat is transferred rapidly into a relatively thin, well - mixed
surface layer of the ocean (
averaging about 70 m in depth), the transfer into the deeper waters is so slow that the atmospheric
temperature reaches effective equilibrium
with the mixed layer in a decade or so.
This was one of the motivations for our study out this week in Nature Climate Change (England et al., 2014)
With the global -
average surface air
temperature (SAT) more - or-less steady since 2001, scientists have been seeking to explain the climate mechanics of the slowdown in warming seen in the observations during 2001 - 2013.
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)?
How could it be otherwise,
with a core
temperature of some 5000 K or more, sitting in the vacuum of outer space,
with its nearest decent source of heat unable to maintain an
average surface temperature of more than 255 K or so?
, they just say «
average»)
with a
surface temperature anomaly of GISS
with base value 1951 - 1980!
According to the published report, there is no longer a discrepancy in the rate of global
average temperature increase for the
surface compared
with higher levels in the atmosphere.