Sentences with phrase «over decadal time»

While I am deathly concerned about Global Warming and its destructive effects — and quite frankly I think we're fubar, ecosystems change VERY rapidly over decadal time scales.

Rather we are interested in the departures from this signal over decadal time scales.

I think people would be a bit more interested in the difference over a decadal time - frame.

[D] espite the strong mechanistic or physiological basis for a role of warming in coral bleaching and coral growth, a robust demonstration of a direct causal link between global warming and global coral bleaching over decadal time scales has not yet been produced.»

«Based on what we've found, it is possible that sea - level rise over decadal time scales will be a key storyline in future climate predictions,» he said.

Not exact matches

Holgate (2007) showed decadal rates of sea - level rise (linear trends over 10 years), but as we have shown in Rahmstorf et al. (2012), those vary wildly over time simply as a result of sampling noise and are not consistent across different data sets (see Fig. 2 of our paper).

For example the increasing trend in the coherent NHSM decadal precipitation shown in the paper (Figure S3B: the spatial pattern and associated principal component time series of the EOF) in fact suggest a weakening over recent decades in much of India and East Asia.

The stagnation in greenhouse warming observed over the past 15 + years demonstrates that CO2 is not a control knob that can fine tune climate variability on decadal and multi-decadal time scales.

This criterion may not be satisfied if observations are available only over a short time period (as is the case for the vertical structure of clouds), or if the predictor is defined through low - frequency variability (trends, decadal variability), or if there is a lack of consistency among available datasets (as in the case for global - mean precipitation and surface fluxes).

Models all produce natural variability, many of which show temperature flatlines over decadal timescales, and given the wide importance of natural variability over < 10 year time scales and uncertain forcings, one can absolutely not claim that this is inconsistent with current thinking about climate.

Abstract — 2008 Climate and wildfires in the North American boreal forest... Climate controls the area burned through changing the dynamics of large - scale teleconnection patterns (Pacific Decadal Oscillation / El Niño Southern Oscillation and Arctic Oscillation, PDO / ENSO and AO) that control the frequency of blocking highs over the continent at different time scales......... Since the end of the Little Ice Age, the climate has been unusually moist and variable: large fire years have occurred in unusual years, fire frequency has decreased and fire — climate relationships have occurred at interannual to decadal time scales...... http://rstb.royalsocietypublishing.org/content/363/1501/2315.short ---------------Decadal Oscillation / El Niño Southern Oscillation and Arctic Oscillation, PDO / ENSO and AO) that control the frequency of blocking highs over the continent at different time scales......... Since the end of the Little Ice Age, the climate has been unusually moist and variable: large fire years have occurred in unusual years, fire frequency has decreased and fire — climate relationships have occurred at interannual to decadal time scales...... http://rstb.royalsocietypublishing.org/content/363/1501/2315.short ---------------decadal time scales...... http://rstb.royalsocietypublishing.org/content/363/1501/2315.short ----------------------

The sum (integral) of this effect over time will be shown in LOD (not it's rate of change), so decadal scale change in SST will be reflected in LOD.

At decadal time scales, warming over the tropics leads to drought over the Sahel, whereas warming over the North Atlantic promotes increased rainfall.

The novelty is that this area unlike most others has at the moment an appearance of moving in unison over a short decadal time span with this mostly external forcing.

Ole Willy says, «The hiatus in warming observed over the past 16 years demonstrates that CO2 is not a control knob on climate variability on decadal time scales.»

In each case heavily modulated by ocean behaviour on decadal time scales but readily apparent over a century or two.

(A) coordinate programs at the National Oceanic and Atmospheric Administration to ensure the timely production and distribution of data and information on global, national, regional, and local climate variability and change over all time scales relevant for planning and response, including intraseasonal, interannual, decadal, and multidecadal time periods;

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.

A wavelet analysis reveals changes in relative domains of variability over time, with a higher concentration of power in the interannual and decadal bands during the LIA that is much subdued during the MCA (Fig 4D).

... I think the weakness in this post is the idea that decadal oscillations in climate properties are potentially drivers of climate warming over time.

Bart quoted me as saying: «However, I think the weakness in this post is the idea that decadal oscillations in climate properties are potentially drivers of climate warming over time.»

However, I think the weakness in this post is the idea that decadal oscillations in climate properties are potentially drivers of climate warming over time.

Reanalysis data from 1948 to 2005 indicate weakening westerlies over this time period, a trend leading to relatively cooler temperatures on the east slope over decadal timescales.

It does not have the appearance of the complete Yamal series and rather looks like a cyclical representation of deltas over the Yamal series time period with little interest features in any given decadal time periods..

It suggests that the ocean's natural variability and change is leading to variability and change with enhanced magnitudes over the continents, causing much of the longer - time - scale (decadal) global - scale continental climate variability.

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

«The figure clarifies that internal climate variability over a short decadal or 15 - year time scale is at least as important as the forced climate changes arising from greenhouse gas emissions.»

The decadal scenarios are not time series, but rather frequencies of extreme events (including clusters) and worst case scenarios over the target time interval: floods, droughts, heat waves, tropical cyclones, heavy snowfalls, etc..

The decadal scenarios are not time series, but rather frequencies of extreme events (including clusters) and worst case scenarios over the target time interval:» Extreme weather events occur repeatedly throughout history and are conveniently forgotten.

Present - day ocean models do have some rudimentary capability to model El Nino - like variability, but they are not yet able to reliably simulate decadal - type variability, even though 1000 - year climate runs exhibit variability over a broad range of time scales.

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.

One could argue that decadal variability may mask any anthropogenic trend over such a relatively short time interval.

«We found that variation of cloud cover determines Rs at a monthly scale but that aerosols determine the variability of Rs at a decadal time scale, in particular, over Europe and China.»

Neff W. D., J. Perlwitz and M. P. Hoerling (September 2008): Observational evidence for asymmetric changes in tropospheric heights over Antarctica on decadal time scales.

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.

However, detecting acceleration is difficult because of (i) interannual variability in GMSL largely driven by changes in terrestrial water storage (TWS)(7 ⇓ — 9), (ii) decadal variability in TWS (10), thermosteric sea level, and ice sheet mass loss (11) that might masquerade as a long - term acceleration over a 25 - y record, (iii) episodic variability driven by large volcanic eruptions (12), and (iv) errors in the altimeter data, in particular, potential drifts in the instruments over time (13).

Given the downtrend in global temperatures over the past 11 years and the likelihood that this will continue for some time (see Section 2.4 of my Comments) because of the Pacific Decadal Oscillation (PDO), there would appear to be ample time to start over and do it carefully and thoroughly this time with full input by everyone that may be interested.

We also find that H is predicted with significantly more skill by DePreSys than by NoAssim (Fig. 1B), and we conclude that the improvement of DePreSys over NoAssim in predicting Ts on interannual - to - decadal time scales results mainly from initializing upper ocean heat content.

Temperature increases in the thermocline occur on the decadal timescale whereas, over most of the abyss, it is the millennial time scale that is relevant, and the strength of MOC in the channel matters for the intensity of heat uptake.

And the» stagnation in greenhouse warming observed over the past 15 + years demonstrates that CO2 is not a control knob that can fine tune climate variability on decadal and multi-decadal time scales.»