Sentences with phrase «at centennial scales»

In spite of these large low frequency uncertainties, at centennial scales, they are still only about 13 % of the IPCC estimated anthropogenic increase (with 90 % certainty).

Orbital factors can initiate, but the insolation rate of change due to orbital factors would not drive the detailed processes at a centennial scale (Dansgaard Oeschger etc).

It's quite difficult to judge on Wikipedia plot, but Esper and Moberg reconstructions seem to have the same trends at centennial scale (even if Esper's one have globally more amplitude than all others).

Not exact matches

«[The Nature study is] heavily smoothing the data so as to look only at centennial - scale shifts, not what we usually think of as droughts or rainfall extremes, which would be scales of days to at most a decade or two.»

With due fanfare, the Museum of Modern Art will reexamine the beginnings of abstraction, at once marking the centennial of that watershed moment and inadvertently reminding us of the subsequent backlash, as «Inventing Abstraction, 1910 — 1925» will be — surprisingly — the first large - scale survey of its kind at MoMA (the very bastion of modernism) since Alfred Barr's «Cubism and Abstract Art» in 1936.

To be sure, on the centennial scale, some heat does get buried several hundred meters deep in the ocean, at least in some limited parts of the ocean.

An increasing number of Holocene proxy records are of sufficiently high resolution to describe the climate variability on centennial to millennial time scales, and to identify possible natural quasi-periodic modes of climate variability at these time scales (Haug et al., 2001; Gupta et al., 2003).

The study by Macias & Johnson (2008) provides not only evidence for the link between decadal - scale changes in the teleconnection patterns (e.g. the Pacific Decadal Oscillation (PDO) index) and the increased fire frequency in the late twentieth century but also an explanation of why the pattern of fire variability and fire - climate relationships changes at different time scales from centennial / decadal to interannual.....

The short length of these records (i.e., < 50 years) has meant that our current knowledge of larger - scale drivers at interdecadal, centennial, and millennial scales is limited.

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.

Climate shifts unpredictably at multi-decadal scales producing extreme variability at centennial to millennial scales.

A new study using a high - resolution stalagmite record from Australia with cave sites in southern China reveal a close coupling of monsoon rainfall on both continents, with numerous synchronous pluvial and drought periods, suggesting that the tropical rain belt expanded and contracted numerous times at multidecadal to centennial scales.

At multi-decadal to centennial scales, temperature variability shows distinctly different regional patterns, with more similarity within each hemisphere than between them.

Previous analyses of Coppermine and Thelon ring - width data, in combination with ring width data from 2 other sites in the western NWT (R. Wilson unpublished report, 2005; D'Arrigo et al., 2006) revealed that the Regional Curve Standardization (RCS) method, a potentially useful technique for retaining centennial - scale climatic trends in tree rings (Briffa et al., 1992; Cook et al., 1995; Esper et al., 2002), did not appear to preserve any additional low - frequency information at these sites when compared to more traditional techniques.

Additional proxy records that cover the entire CE are needed to investigate decadal - to centennial - scale responses of climate to changes in radiative forcing as well as internal variability at these time scales.

Their analysis revealed a close coupling of monsoon rainfall on both continents, with numerous synchronous pluvial and drought periods, suggesting that the tropical rain belt expanded and contracted numerous times at multidecadal to centennial scales.

«Temperatures did not fluctuate uniformly among all regions, highlighting the regionally specific evolution of temperature at multidecadal to centennial time scales (Fig. 2).

Likewise, a statistician will not automatically be aware of the difference between proxies of low resolution (which may be good at estimating average temperature on a decadal or even centennial scale) and proxies of high resolution that are good at estimating temperature at a yearly level.

We assert that the amount of magnetic energy that remains present (de Wijn et al. 2009) at the surface of a spotless (i.e. quiet) Sun is the main driver of solar irradiance variability on centennial time scales.

... Using a subcentennially resolved epibenthic foraminiferal δ13C record we show that North Atlantic Deep Water (NADW) influence was strong at the onset of the last interglacial period and then interrupted by several prominent, centennial - scale reductions.

The bicentennial trend lines clearly diverge from the past 30 or 50 or hundred years, and the most closely fitting explanation for this behavior is anthropogenic causes shifting the trends leaving only a shadow of natural variability superimposed on the sharp centennial scale rise, at about an order of magnitude smaller amplitude than the changes associated with GHGs and dampened by man - made aerosols.