We showed that the spatial
pattern of warming trends is so tightly correlated with indicators of economic activity that the probability they are unrelated is less than one in 14 trillion.
The unlikely assumption that the 21st century pattern of climate shifts will follow the 20th
century pattern of warmer to cooler to warmer.
The two models were run under different conditions set by the 2007 Intergovernmental Panel on Climate Change (IPCC) to study the
general pattern of warming in the 20th century.
Followed by «It is extremely unlikely (5 %) that the
global pattern of warming during the past half century can be explained without external forcing, and very unlikely that it is due to known natural external causes alone.»
McKitrick and Michaels (2004) and [Dutch meteorologists] de Laat and Maurellis (2006) attempted to demonstrate that
geographical patterns of warming trends over land are strongly correlated with geographical patterns of industrial and socioeconomic development, implying that urbanization and related land surface changes have caused much of the observed warming.
Changes in flow
patterns of warm Pacific Ocean air from the south were driving earlier spring snowmelt, while decreasing summer sea ice had the greatest influence on later onset of snowpack in the fall.
It is extremely unlikely (< 5 %) that the global
pattern of warming during the past half century can be explained without external forcing, and very unlikely that it is due to known natural external causes alone.
For instance, Mojib Latif of the Leibniz Institute of Marine Sciences in Germany and his colleagues published a paper in 2008 that suggested ocean circulation patterns might cause a period of cooling in parts of the Northern Hemisphere, even though the long - term
pattern of warming remained in effect.
FWIW, I didn't find Armour's paper very convincing, because the
actual pattern of warming seems the exact opposite of what Armour's mechanism would require.
The observed long -
term pattern of warming closely matched computer predictions of a greenhouse warming «signature,» entirely different from changes that might be due to solar activity, volcanoes, or other possible influences on climate.
Assuming the spatial
patterns of the warming shown by the GISS LOTI data are close to being correct, then the differences with the lower troposphere data appear to show that lower troposphere temperature data would be of questionable value for infilling the HADCRUT4 data.
Among the weather phenomenon that could be affecting wave heights in the Pacific, Ruggiero said, are El Nino — warmer surface temperatures in the tropical eastern Pacific — and the Pacific Decadal Oscillation — 20 - to 30 -
year patterns of warmer or cooler surface temperatures in the Pacific.
While this scene is most common in San Diego, the epicenter of Southern California sportfishing, it is appearing far up the coast as an unprecedented
pattern of warm ocean currents lures migratory tuna and other tropical species deep into U.S. waters.
The 5th — 95th percentile temperature range across the models (shown by solid contours with labels) in these regions is smaller and has a different spatial pattern, suggesting that these
simulated patterns of warming are not largely controlled by model biases.
Our weather has finally stopped its
seesaw pattern of warm and cool and so now I am ready to really jump in with the fall recipes on our menu plan.
That's because of the
seasonal pattern of warming, say Andrew Monaghan of the National Center for Atmospheric Research in Boulder, Colorado, and Marco Tedesco of the City College of New York.
And yet the best models had called for a quiet season because it was a year of El Niño, a
recurring pattern of warm water in the eastern Pacific Ocean.
The authors found that the smoothly
progressing pattern of warming, at the ocean surface and with increasing ocean depth, observed in the 20th century simulations is highly consistent with a smoothly increasing and externally - driven forcing.
If a person can not detect a rather
precise pattern of warming and pause in warming in the Global temperature record starting in 1880 I can only say that to me the pattern is obvious.
The El Niño / La
Niña pattern of warm or cold water in the equatorial Pacific has shifted to neutral phase.
You might even learn how to knit this
free pattern of a warm and woolly scarf: just in time for Christmas, if you start now... This Union Jack scarf, or Union Jack pillows would be a treat for you or a friend.
[DC: To me it simply refers to the general
pattern of warming since the 1970s — greater warming in the northern hemisphere over land in middle and higher latitudes.
It furthermore suggests that as chlorine and bromine in the stratosphere decrease during this century, due to their restricted emissions, the NAM may become less positive in the future; this would change the geographical
pattern of warming relative to what has been observed.