Sentences with phrase «over decadal average»

I've generated a graphic using the latest GISTEMP data that plots the anomaly over decadal average bars for decades 2005 - 2014, 1995 - 2004, and so on.

Not exact matches

For the most part, I've not seen much evidence to suggest that internal variations alone can bring the climate to a new state on decadal timescales, even if the internal fluctuations do not completely average out over decades (e.g.,, the PDO being in a positive phase more than a negative phase during the timescale of consideration).

Some of these episodes are based on climatology (i.e., averages over decadal timescales) as previously mentioned, so they don't allow the study of interannual variability but do give strong evidence of prevailing conditions in the longer term; this is especially true of the southern hemisphere.

I accept that there are complex weather systems bubbling away at any given point over the earth's surface but, on a planetary scale as the earth rotates on its axis, I suggest these will essentially average out, at similar angular distances as from the sub-solar point, at decadal and centennial timeframes.

Figure 1: The decadal land - surface average temperature using a 10 - year moving average of surface temperatures over land.

It is very plausible that natural decadal fluctuations are 0.1 to 0.2 degrees, averaging to zero over longer time periods, while the CO2 trend is measured in degrees per century.

Tropospheric sensible heat should only be used as a weak proxy for energy changes in the system on a decadal average at best, whereas the IPWP is a much more stable proxy over shorter timeframes.

Another method is to simply average over two periods of decadal variability.

Prior to 1979 when satellites began to measure lower troposphere temperature all over the globe we had no measure of global average temperature (GAT) only guesstimates based on fewer and fewer measurements using instruments not designed to measure decadal trends so small as a few milliKelvins per decade.

Figure 1: The BEST decadal land - surface average temperature using a 10 - year moving average of surface temperatures over land.

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.

This record (Holgate 2007) shows that the average decadal rate of SL change has oscillated from -1 mm / year to +5 mm / year over the 20th C, with the first half of the 20th C showing a slightly higher average rate of +2.0 mm / year than the second half at +1.4 mm / year (IOW no observed acceleration in the rate of SL rise).

The decadal - scale variability reflected in the temperature reconstruction from tree rings may well be superimposed over this warmer baseline, but the warmth still would not likely match the observed average maximum temperatures over the past decade (17.54 °C mean maximum average for 1999 — 2008, Fort Valley, AZ, Western Regional Climate Center)(Table S1).

Sure... but to their defence *) they are doing the decadal and 30 - years comparisons with averages over those time spans, i.e., correctly.

A recent analysis of a number of different proxy temperature records suggests that Northern Hemisphere decadal - scale averages over land may have been as much as approximately 0.2 — 0.4 °C above the 1850 — 2006 mean from roughly 950 — 1150 AD (32).

Total cloud cover detrended standardized anomalies averaged over the entire NARR domain; total cloud cover detrended standard anomalies averaged over continental landmass; total cloud cover detrended standard anomalies averaged over oceans; sun spot number and 10.7 cm solar radio flux; GCR neutron monitors; the Atlantic Multidecadal Oscillation; the Quasi-Biennial Oscillation; the Multivariate El Nino Southern Oscillation; the North Atlantic Oscillation; and the Pacific Decadal Oscillation.

Retrospective decadal predictions with DePreSys show improvements over uninitialised forecasts, including global average temperature and Atlantic hurricane frequency.

The natural causes of climate variations that have time scales (century, decadal; e.g. Schwabe sunspot cycles, average solar output during the satellite measuring era,, ENSO / PDO / AMO and the rest of the alphabet soup of «oscillations», volcanism) either don't capture energy over multiple cycles — if I push a child on a swing, his average position doesn't move away from me — or are going in the wrong direction.

If skeptics attempted to state the global average temperature of the LIA or MWP within tenths of a degree, and published trends purporting to show temperatures with such precision over decadal and century time periods, then it would be inconsistent with criticisms of the claims of the consensus regarding both current and paleo temperature sets.

A weighted average of these decadally smoothed series was scaled so that its mean and standard deviation matched those of the NH decadal mean land and marine record over the period 1856 to 1980.