Sentences with phrase «centennial climate»

Latif, M., Martin, T. & Park, W. Southern Ocean sector centennial climate variability and recent decadal trends.

I have no doubt that there has been centennial climate fluctuation during the Quaternary, and this includes the Holocene.

Not exact matches

Celebrating crystallography's centennial; how climate pushes malaria uphill; roundup of daily news with David Grimm.

The working group on coupled biogeochemical cycling and controlling factors dealt with questions regarding the role of plankton diversity, how ocean biogeochemistry will respond to global changes on decadal to centennial time scales, the key biogeochemical links between the ocean, atmosphere, and climate, and the role of estuaries, shelves, and marginal seas in the capturing, transformation, and exchange of terrestrial and open - marine material.

A new study shows the chemical register of climate change and global episodes such as volcanic eruptions in high - mountain centennial forests in the Iberian Peninsula (Spain).

«The influence of rising oceans is even greater than the overall amount of sea level rise because of storm surge, erosion and inundation,» said Carlson, who studies the interaction of ice sheets, oceans and the climate system on centennial time scales.

And with the service's centennial happening in 2016, NPS is working on a «plan of action» to improve the parks for the big celebration, as well as to address long - term concerns, including cultural resource management, invasive species, and climate change.

Modes of climate variability contribute to significant MHW variations both regionally, and globally, but do not greatly affect the centennial - scale secular changes described above.

I didn't bring this up in the context of the centennial Holocene or longer term LGM climate changes because nobody has yet put forth a viable mechanism accounting for such climate changes in terms of internally generated variability.

SPARC, together with others in the WCRP community, focuses on understanding atmospheric dynamics and climate variability to provide better climate predictions on scales from seasonal all the way to centennial.

Paleoclimate characteristics and trends provide the overarching framework and climate history to better understand centennial temperature fluctuations and potential future global temperature tipping points.

The assumption that these climate shifts between quasi equilibrium states cancel out over less than centennial to millennial scales is astonishingly ill founded.

[Response: Despite the evidence for rapid regional climate changes during certain past transitional periods (e.g. the Younger Dryas), there is no evidence that global mean temperature changes of the amplitude seen in the past century have occured on centennial or shorter timescales in the past.

The implications of our findings are that the modern observations of ocean - driven warming along the western Antarctic Peninsula need to be considered as part of a natural centennial timescale cycle of climate variability, and that in order to understand climate change along the Antarctic Peninsula, we need to understand the broader climate connections with the rest of the planet.

This means that just because the models are struggling to explain recent climate, that does not imply that their centennial projections are unreliable.

It is also important to note that the models are not designed to project climate on a decadal basis, but on a centennial basis, where the effects of internal variability can more reasonably be expected to average out.

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).

Reconstructed centennial variability of Late Holocene storminess from Cors Fochno, Wales, UK Future anthropogenic climate forcing is forecast to increase storm intensity and frequency over Northern Europe, due to a northward shift of the storm tracks, and a positive North Atlantic Oscillation.

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.....

Don't falsely assume I'm resistant to the idea of warming — but you're going to have to convince me that you deeply understand externally - driven MD NH natural climate before I'll even be willing to discuss the partitioning of centennial warming into natural & anthropogenic components.

Here we show that in addition to other well - known climate indices, solar forcing largely drives decadal, interdecadal, and centennial cycles within the tropical cyclone record.»

c) Michael - Shawn Fletcher, Patricio Iván Moreno: Vegetation, climate and fire regime changes in the Andean region of southern Chile (38 ° S) covaried with centennial - scale climate anomalies in the tropical Pacific over the last 1500 years Quaternary Science Reviews, (16 July 2012) Volume 4, Pages 46 — 56.

The Earth's climate system includes chaotic elements that play an important role on some timescales, but are dominated by non-chaotic aspects of CO2 - mediated forcing on centennial timescales.

Spectral analysis reveals centennial - scale cyclic climate changes with periods of 1220, 1070, 400, and 150 yr.

Oil — > Transport, Electricity — > 1) C02 and 10x stronger or so CH4 in air — > Global Warming — > Draughts, Hurricanes, Floods — > Lost crops, forests, homes — > CO2 fixing potential lost, Starvation, Diseases, More ressources / energy needed 2) C02 and 10x stronger or so CH4 in air — > Global Warming — > Ice caps and glaciers metling — > Earth natural climate stabilizers lost + massive CH4 release from pergelisoils & ancient ice melt 3) CO2 in water — > Oceans acidification — > Destruction of centennial / millenial coral reefs — > Loss of oceans» filters / pulmons / incubators / biodiversity reservoir — > Food shortage

The platform will complement existing GMES / Copernicus pre-operational components, but will focus on datasets which provide information on climate variability on decadal to centennial time scales from observed and projected climate change impacts in Europe, and will provide a toolbox to generate, compare and rank key indicators.

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

In the SH, Neisen 2004 lists the more common frequencies he isolated, «Spectral analysis reveals centennial - scale cyclic climate changes with periods of 1220, 1070, 400, and 150 yr.»

Using 40 simulations of the 1920 - 2100 climate (Figure), the study found that northeast US sea level changes can be partitioned into: (1) an interannual, internal, locally wind - driven component and (2) a multidecadal - to - centennial component that is associated with external forcing and the overturning circulation.

Lockwood, M., Bell, C., Woollings, T., Harrison, R. G., Gray, L. J. and Haigh, J. D.: Top - down solar modulation of climate: evidence for centennial - scale change, Environ.

Here is their description of the work: The influence of solar variability on Earth's climate over centennial to millennial time scales is the subject of considerable debate.

-- Hewitt et al., 2016 http://adsabs.harvard.edu/abs/2016EGUGA..18.8388H «Many northern hemisphere climate records, particularly those from around the North Atlantic, show a series of rapid climate changes that recurred on centennial to millennial timescales throughout most of the last glacial period.

Charlie Skeptic does not believe in any of the explanations publicly given for past decadal, centennial and millennial Holocene climate variations affecting the Earth as a whole.

The climate of the past millennium was marked by substantial decadal and centennial scale variability in the Northern Hemisphere.

I think its safe to say (broadly speaking) that modelled climate change, on centennial timescales, can only occur witth a change of forcing.

Specifically, it has been suggested that centennial - scale climate variability during the Holocene epoch was controlled by the Sun.

To describe and understand the physical processes responsible for climate variability and predictability on seasonal, interannual, decadal, and centennial time - scales, through the collection and analysis of observations and the development and application of models of the coupled climate system, in cooperation with other relevant climate - research and observing programmes.

At the same time, records with decadal to centennial resolution (along with their estimates of uncertainty) are important constraints on low - frequency responses of the climate system.

For example Gerald Bond's Persistent Solar Influence on North Atlantic Climate during the Holocene which is one of a series of papers written by Bond that tracked the correlation of levels of the cosmogenic isotopes C14 and Be10 with centennial to millennial climate Climate during the Holocene which is one of a series of papers written by Bond that tracked the correlation of levels of the cosmogenic isotopes C14 and Be10 with centennial to millennial climate climate change.

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.

Favourite plays include hyper - focus on one, extremely speculative study (T&S 09); misrepresenting the potential for abrupt cooling in the C21st, dismissing the dominance of the centennial forced trend, misrepresenting deglacial abrupt climate change; grossly over-stating the accuracy and utility of pre-CERES TOA reconstructions (especially the synthetic, non-observational ISCCP - FD reconstruction); hyper - focus on interannual OHC variability; confusion of cause and effect with long - term trends in OHC (CO2 forcing denial) and general inability to see that natural variability from now on will be riding up a forced trend which will increasingly dominate climate behaviour.

If a generalised forcing is gradually increased (eg WMGHGs) then the * nature of climate change * on the centennial scale will be constrained.

«Our paper demonstrates that the worldwide retreat of glaciers necessarily requires a climate change that is centennial in duration and global in extent.»

To say it is foolish to think ACO2 dominates the climate on decadal scales is more correct IMO than to think foolish on the centennial.

Is Judith's statement about it being «foolish» to think that ACO2 dominates the climate on centennial (or decadal) scale in contradiction to Lewis» 90 % CI that goes up to 3.0 °C per doubling (considering the magnitude of warming over the last 60 years or so projected out another 40 years)?

Do you really think it is foolish to think that CO2 influences the climate on centennial time scales?

After all, the sun's variability appears to track rather closely with climate on millennial, centennial, and decadal timescales.

Summary: Holocene climate has been affected in different periods by several centennial to millennial solar cycles.

By 2006 some models still found that changes in the ocean circulation «are able to produce abrupt climate changes on decadal to centennial time scales,» Randall et al. (2007), p. 641.

More salt is La Nina — and it suggests centennial cooling starting with the next global climate shift.