Sentences with phrase «pacific decadal climate variability»

Antarctic sea - ice expansion between 2000 and 2014 driven by tropical Pacific decadal climate variability.

«Antarctic Sea - Ice Expansion between 2000 and 2014 Driven by Tropical Pacific Decadal Climate Variability.»

Not exact matches

This variability includes the Pacific Decadal Oscillation (PDO), a long - lived El Niño - like pattern of Pacific climate variability that works like a switch every 30 years or so between two different circulation patterns in the North Pacific Ocean.

Goddard thinks it may be an early indication of a big shift in the Pacific Decadal Oscillation (PDO), a kind of long - term El Niño - like pattern of climate variability.

He thinks their movement may be an early indication of a big shift in the Pacific Decadal Oscillation (PDO), a long - term pattern of climate variability.

On decadal time scales, annual streamflow variation and precipitation are driven by large - scale patterns of climate variability, such as the Pacific Decadal Oscillation (see teleconnections description in Climate chapter)(Pederson et al. 2011a; Seager and Hoerlingdecadal time scales, annual streamflow variation and precipitation are driven by large - scale patterns of climate variability, such as the Pacific Decadal Oscillation (see teleconnections description in Climate chapter)(Pederson et al. 2011a; Seager and Hoerlingclimate variability, such as the Pacific Decadal Oscillation (see teleconnections description in Climate chapter)(Pederson et al. 2011a; Seager and HoerlingDecadal Oscillation (see teleconnections description in Climate chapter)(Pederson et al. 2011a; Seager and HoerlingClimate chapter)(Pederson et al. 2011a; Seager and Hoerling 2014).

-- The Pacific Decadal Oscillation is a pattern of ocean - atmospheric climate variability across the mid-latitude Pacific Ocean.

The Pacific Decadal Oscillation is a pattern of ocean - atmospheric climate variability across the mid-latitude Pacific Ocean.

Yeh, S. - W., and B.P. Kirtman, 2004: Decadal North Pacific sea surface temperature variability and the associated global climate anomalies in a coupled GCM.

His research concerns understanding global climate and its variations using observations and covers the quasi biennial oscillation, Pacific decadal oscillation and the annular modes of the Arctic oscillation and the Antarctic oscillation, and the dominant spatial patterns in month - to - month and year - to - year climate variability, including the one through which El Niño phenomenon in the tropical Pacific influences climate over North America.

In Atmospheric Controls On Northeast Pacific Temperature Variability And Change, 1900 — 2012, Johnstone 2014 showed the Pacific Decadal Oscillation can explain climate change in the Pacific northeast without invoking greenhouse gases.

Ocean and atmospheric indices — in this case the El Niño Southern Oscillation, the Pacific Decadal Oscillation, the North Atlantic Oscillation and the North Pacific Oscillation — can be thought of as chaotic oscillators that capture the major modes of climate variability.

The roughly thirty year period over which we have reliable reanalyses and satellite measurements is too short to rule out the influence of natural climate variability, such as the Pacific Decadal Oscillation.

«Externally Forced and Internally Generated Decadal Climate Variability Associated with the Interdecadal Pacific 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 interannudecadal - 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 interannuDecadal 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 interannudecadal to interannual.....

Ocean and atmospheric indices — in this case the El Niño Southern Oscillation, the Pacific Decadal Oscillation, the North Atlantic Oscillation and the North Pacific Oscillation — can be thought of as chaotic oscillators that capture the major modes of northern hemisphere climate variability.

«The evidence presented here suggests that most of that warming might well have been caused by cloud changes associated with a natural mode of climate variability: the Pacific Decadal Oscillation.»

The influence of large - scale climate modes of variability (the Pacific Decadal Oscillation (PDO) and the El Niño - Southern Oscillation (ENSO)-RRB- on APF magnitude is also assessed, and placed in context with these more localized controls.

Ocean and atmospheric indices — in this case the El Niño Southern Oscillation, the Pacific Decadal Oscillation, the North Atlantic Oscillation and the North Pacific Oscillation — can be thought of as chaotic oscillators that capture the major modes of NH climate variability.

However, direct attribution of these changes to climate change is made difficult by long - term patterns of variability that influence productivity of different parts of the Ocean (e.g., Pacific Decadal Oscillation).

«The authors write that North Pacific Decadal Variability (NPDV) «is a key component in predictability studies of both regional and global climate change,»... they emphasize that given the links between both the PDO and the NPGO with global climate, the accurate characterization and the degree of predictability of these two modes in coupled climate models is an important «open question in climate dynamics» that needs to be addressed... report that model - derived «temporal and spatial statistics of the North Pacific Ocean modes exhibit significant discrepancies from observations in their twentieth - century climate... conclude that «for implications on future climate change, the coupled climate models show no consensus on projected future changes in frequency of either the first or second leading pattern of North Pacific SST anomalies,» and they say that «the lack of a consensus in changes in either mode also affects confidence in projected changes in the overlying atmospheric circulation.»»

This study shows that the coupled climate models have mixed results in reproducing the spatial and temporal characteristics of major observed Pacific climate patterns of variability (e.g., the Pacific Decadal Oscillation (PDO) and El Niño).

Decadal variations in the North Pacific Gyre Oscillation are characterized by a pattern of sea surface temperature anomalies that resemble the central Pacific El Niño, a dominant mode of interannual variability with far - reaching effects on global climate patterns5, 6, 7.

The model is actually based on ocean and atmospheric indices — in this case the El Niño Southern Oscillation, the Pacific Decadal Oscillation, the North Atlantic Oscillation and the North Pacific Oscillation — and can be thought of as chaotic oscillators that capture the major modes of climate variability.

Meehl, G. A., A. Hu, and B.D. Santer, 2008: The mid-1970s climate shift in the Pacific and the relative roles of forced versus inherent decadal variability, J. Climate, inclimate shift in the Pacific and the relative roles of forced versus inherent decadal variability, J. Climate, inClimate, in press.

Over these shorter periods, there are many modes of climate variability, usually involving semi-structured oscillations in sea surface temperatures, like the El Niño - Southern Oscillation, the Pacific Decadal Oscillation, the Arctic Oscillation, and so on.

The «Pacific Decadal Oscillation» (PDO) is a long - lived El Niño - like pattern of Pacific climate variability.

Now forced to explain the warming hiatus, Trenberth has flipped flopped about the PDO's importance writing «One of the things emerging from several lines is that the IPCC has not paid enough attention to natural variability, on several time scales,» «especially El Niños and La Niñas, the Pacific Ocean phenomena that are not yet captured by climate models, and the longer term Pacific Decadal Oscillation (PDO) and Atlantic Multidecadal Oscillation (AMO) which have cycle lengths of about 60 years.»

Together the oceanic upwelling in the north and south Pacific and the movement of atmospheric mass from and to the poles provide almost all of the decadal variability in Earth's climate.

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.

The Pacific and the La Niñas the pause is part of natural climate variability, tied to a La - Niña - like decadal cooling.

Regional circulation patterns have significantly changed in recent years.2 For example, changes in the Arctic Oscillation can not be explained by natural variation and it has been suggested that they are broadly consistent with the expected influence of human - induced climate change.3 The signature of global warming has also been identified in recent changes in the Pacific Decadal Oscillation, a pattern of variability in sea surface temperatures in the northern Pacific Ocean.4

What was done, was to take a large number of models that could not reasonably simulate known patterns of natural behaviour (such as ENSO, the Pacific Decadal Oscillation, the Atlantic Multidecadal Oscillation), claim that such models nonetheless accurately depicted natural internal climate variability, and use the fact that these models could not replicate the warming episode from the mid seventies through the mid nineties, to argue that forcing was necessary and that the forcing must have been due to man.

Meehl, G. A., Hu, A., Arblaster, J. M., Fasullo, J. T. & Trenberth, K. E. Externally forced and internally generated decadal climate variability associated with the Interdecadal Pacific Oscillation.

Meehl, G. A., Hu, A., Arblaster, J. M., Fasullo, J. Y. & Trenberth, K. E. Externally forced and internally generated decadal climate variability associated with the Interdecadal Pacific Oscillation.

While there still is quite a bit of uncertainty surrounding the effects of the PDO on Earth's climate, the U.K. Met Office says that «decadal variability in the Pacific Ocean may have played a substantial role in the recent pause in global surface temperature rise.»

The region is strongly affected by seasonal and interdecadal climate variability, such as El Niño events and the Pacific Decadal Oscillation.

The Pacific sst drive most decadal to cenntennial variability in climate.

Meehl, G. A., Hu, A., Arblaster, J., Fasullo, J. & Trenberth, K. E. Externally forced and internally generated decadal climate variability associated with the Interdecadal Pacific Oscillation.

This can be seen in the Pacific Ocean — a very significant driver of interannual to decadal hydrologic and climate variability — in changes in hydrology and ocean states around 1910, the mid 1940's, the late 1970's and after 1998.

This variability includes the Pacific Decadal Oscillation (a long - lived El Niño - like pattern of Pacific climate variability) and anthropogenic pollutants, which act to modify the Pacific Decadal Oscillation.

Never mind the fact that those same models were unable to reproduce large scale natural climate variability such as the Pacific Decadal Oscillation, the Atlantic Multidecadal Oscillation and ENSO.