Not exact matches
Surface
air temperatures over the Barents and Kara seas
during winter, compared to the 1979 - 2013
average.
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.
I would suggest comparing peak to peak
average temperature captures
during weighted El - Nino events (
during the time they occur, if they can be compared equally this would be a telling graph), instead of considering year to year records as a means of reducing ENSO effects on the
temperature record, ENSO being largely a heat exchange between
air and sea causing great changes in cloud distribution world wide.
However, despite near normal rates of ice loss
during the month, June 2015 was a relatively warm month (Figure 7) with 925 hPa
air temperatures up to 2.5 C higher than
average near the North Pole and East Siberian Sea, with even warmer
air temperatures in the Kara Sea (up to 4.5 C).
Surface
air temperatures over the Barents and Kara seas
during winter, compared to the 1979 - 2013
average.
Springtime cold
air outbreaks (at least two consecutive days
during which the daily
average surface
air temperature is below 95 % of the simulated
average wintertime surface
air temperature) are projected to continue to occur throughout this century.19 As a result, increased productivity of some crops due to higher
temperatures, longer growing seasons, and elevated CO2 concentrations could be offset by increased freeze damage.20 Heat waves
during pollination of field crops such as corn and soybean also reduce yields (Figure 18.3).4 Wetter springs may reduce crop yields and profits, 21 especially if growers are forced to switch to late - planted, shorter - season varieties.
Based on changes in tree line, pollen samples and ocean sediments, scientists estimate Arctic
air temperatures during the mid Holocene
averaged 2 to 7 °C higher than today.
Figure 2 Twenty feet under the surface, the soil
temperature reflects the
average ambient
air temperature during the year.
During the cool season, the Ridge brought long stretches of cloudless days, which caused daytime temperatures during winter to be well above average (and, at the same time, the position of the ridge also prevented major cold air outbreaks from occurring after December
During the cool season, the Ridge brought long stretches of cloudless days, which caused daytime
temperatures during winter to be well above average (and, at the same time, the position of the ridge also prevented major cold air outbreaks from occurring after December
during winter to be well above
average (and, at the same time, the position of the ridge also prevented major cold
air outbreaks from occurring after December 2013).
Over the past 60 years, Alaska has warmed more than twice as rapidly as the rest of the United States, with state - wide
average annual
air temperature increasing by 3 °F and
average winter
temperature by 6 °F, with substantial year - to - year and regional variability.1 Most of the warming occurred around 1976
during a shift in a long - lived climate pattern (the Pacific Decadal Oscillation [PDO]-RRB- from a cooler pattern to a warmer one.
For example, Figure 1 shows that one GCM simulation underestimated the observed
average maximum surface
air temperature over the eastern US
during five summers by 4.6 °C (8.3 °F).
Globally
averaged, Earth's atmosphere has warmed about 0.45 Celsius (about 0.82 ° F)
during the almost one - third of a century that sensors aboard NOAA and NASA satellites have measured the
temperature of oxygen molecules in the
air.
During hot, humid summer weather, many urban areas experience heat inversions — cold
air in the upper atmosphere holds much warmer
air close to the ground, sustaining higher - than -
average temperatures and trapping smog.
Figure 6 shows the global land surface
air temperature plus sea surface
temperature anomalies (
average of GISS LOTI, HADCRUT4 and NCDC datasets, like The Escalator) before,
during and after the 1997/98 El Niño.
Arctic atmospheric variability
during the industrial era (1875 — 2000) is assessed using spatially
averaged surface
air temperature (SAT) and sea level pressure (SLP) records.