Sentences with phrase «pacific decadal»

However, the warming phase of the Pacific Decadal Oscillation from 1976 to 2001 accounted for all but seven of those 33 years.

Between them, the phenomena known to meteorologists as the Atlantic Multidecadal Oscillation and the Pacific Decadal Oscillation could account for the seeming slowdown in predicted temperature rises.

Relationships with four candidate predictors (the Pacific North American (PNA), Arctic Oscillation (AO), Pacific Decadal Oscillation (PDO), and Nino3 indices) are used for insights into possible large - scale climate forcing.

As of spring 2015, a wide strip of relatively warm water is present along the entire West Coast of North America (Figure 1), in a pattern projecting on the positive phase of the Pacific Decadal Oscillation.

«In the oceans, major climate warming and cooling and pH (ocean pH about 8.1) changes are a fact of life, whether it is over a few years as in an El Niño, over decades as in the Pacific Decadal Oscillation or the North Atlantic Oscillation, or over a few hours as a burst of upwelling (pH about 7.59 - 7.8) appears or a storm brings acidic rainwater (pH about 4 - 6) into an estuary.»

Strong correlations between temperatures and Pacific sea surface temperatures (SSTs) particularly Pacific Decadal Oscillation (PDO) values, also account for temperature variability throughout the state.

Decadal variability is described via large - scale patterns found in the atmosphere and ocean, which oscillate at decadal timescales and are concentrated in specific regions (e.g., Pacific Decadal Oscillation, Atlantic Multidecadal Oscillation, Arctic and Antarctic Oscillations).

However, if the models of Don Easterbrook etc. show global temperature varying with the Pacific Decadal Oscillation (PDO)(not just regional temperature), then the models themselves are missing major physics and the drivers of both PDO and temperature changes.

John Philips (13:43:35) «Trends» have become virtually meaningless lately, since the word has been so variably used, but try this: Eyeball the temperature curve as correlated to the Pacific Decadal Oscillation and you will see an excellent relationship with the cyclic cooling and warming phase of the PDO overlaid on a gradual warming trend emerging from the Little Ice Age.

Coupling that ENSO event we recognized the existence of the Pacific Decadal Oscillation.

The new Jason oceanographic satellite shows that 2007 was a â $ œcoolâ $ La Nina yearâ $» but Jason also says something more important is at work: The much larger and more persistent Pacific Decadal Oscillation (PDO) has turned into its cool phase, telling -LSB-...]

«The Pacific Decadal Oscillation is a climate index based upon patterns of variation in sea surface temperature of the North Pacific from 1900 to the present (Mantua et al. 1997).

«From my perspective it is not a little bit alarming that the current generation of climate models can not simulate such fundamental phenomena as the Pacific Decadal Oscillation.

The Pacific decadal oscillation (PDO) has been mostly negative since about 2000.

That increase was apparently driven mainly by the warm phase of the Pacific Decadal Oscillation, which the models do not model.

The Pacific Decadal Oscillation (PDO) and the Atlantic Multidecadal Oscillation (AMO) have been found to contribute significantly to the nesting behavior of loggerhead turtles.

It was entirely a result of THWBE whereby heat already stored in the oceans and released by a positive phase of the Pacific Decadal Oscillation supplemented a historically high level of solar irradiation.

Note especially the 60 year Pacific Decadal Oscillation (PDO) cycle ignored by IPCC.

With the Pacific Decadal Oscillation now in decline and solar irradiation now falling we are already in very different times.

I had previously noted that that the Pacific has developed a cool phase of the Pacific Decadal Oscillation (PDO).

Those 60 years cycles are prominent on the HadCRUT (figure 5 - A) curve used by IPCC as they are in the reconstructions of the Pacific Decadal Oscillation for the past millennium.

The method is a straight - forward application of the first law of thermodynamics and uses only the time - integral of sunspot count and 32 - year long up trends and down trends that have an amplitude of 0.45 C and are probably related to the Pacific Decadal Oscillation.

The PDO (Pacific Decadal Oscillation) Index?

The latitudinal limits between those climates are shifting northward or southward according to cycles as seen on figure 21 - B for the USA [74]; this may explain the fear, expressed in the 1970s in many periodical and books, of an imminent glaciation; that fear faded after the reversal of the PDO (Pacific Decadal Oscillation) in 1977.

Zhang and Delworth and Zhang et al. showed by using models that, as the northward surface heat transport by the AMOC is increased, the global atmospheric heat transport decreases in compensation (and vice versa), providing a multidecadal component to the Pacific Decadal Oscillation (PDO).

The patterns of Pacific Decadal Variability (PDV) are very similar to those of ENSO.

Removing the influence of two major modes of natural internal variability (the Arctic Oscillation and Pacific Decadal Oscillation) from observations further improves attribution results, reducing the model - observation discrepancy in cold extremes.

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.

Although those change points were naturally caused by the Pacific Decadal Oscillation (PDO), it attracted the computer's attention that an «undocumented change» had occurred.

Fisheries scientist Steven Hare coined the term «Pacific Decadal Oscillation» (PDO) in 1996 while researching connections between Alaska salmon production cycles and Pacific climate (his dissertation topic with advisor Robert Francis).

Reversal in thr Pacific Decadal Oscillation caused natural temperature change - points around the 1940s and 1970s.

Any natural change - points caused by cycles like the Pacific Decadal Oscillation looked like deviations relative to steadily rising trends of an increasingly populated region like Columbia, Maryland or Tahoe City.

On top of the oscillation is a tendency for changing frequency and intensity of ENSO events over the same 20 to 30 year period as the Pacific Decadal Oscillation.

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.»

It is highly likely that due to its effect on storm tracks and competing air masses, the AMO can explain most of the east coast's temperature trends in a manner similar to how the Pacific Decadal Oscillation controls the USA's west coast trends as published by Johnstone 2014.

During a positive Pacific Decadal Oscillation and El Nino years, trade winds slowed and reduced the flushing rate of the reef.

Google Pacific decadal variability and go from there

Regional snow depth in spring (April - May) varies naturally from year to year due to weather patterns driven in part by long - term climate cycles (like the Atlantic Multidecadal Oscillation, Pacific Decadal Oscillation, and the Arctic Oscillation).

Greenhouse gas forcing is found to be the dominant cause of the observed increases in IPWP intensity and size, whereas natural fluctuations associated with the Pacific Decadal Oscillation have played a smaller yet significant role.

(d) Given the hypothesised connections with the Pacific Decadal Oscillation and the weather of West Australia being connected to snowfall at Law Dome, Antarctica, can we (or have we already) make a composite model of which global feature is connected to which other and with what confidence?

The Pacific Decadal Oscillation has the same temporal pattern of warm and cool surface water — which raises interesting questions about how these northern and southern hemisphere ocean phenomenon are linked.

Variability of the El Niño / La Niña cycle, described as a Pacific Decadal Oscillation, largely accounts for the temporary decrease of warming [18], as we discuss further below in conjunction with global temperature simulations.

Oceanic indices PDO (Pacific Decadal Oscillation) and AMO (Atlantic Multidecadal Oscillation) have undergone major changes (re

The image below shows the Pacific Ocean in the cool phase of the Pacific Decadal Oscillation (PDO) and the cool phase (La Niña) of the ENSO.

In contrast, the minimum temperatures at nearby Orland showed the cyclic behavior we would expect the Pacific Decadal Oscillation (PDO) to cause.

Environmental variables estimated over larger spatial and temporal scales included the upwelling index (UI) for 48 ° N, 125 ° W (http://www.pfeg.noaa.gov), an indicator of upwelling strength based on wind stress measurements, as well as the Pacific Decadal Oscillation (PDO, http://jisao.washington.edu/pdo/PDO.latest), a composite indicator of ocean temperature anomalies [33], seawater temperature from Buoy 46041 ∼ 50 km to the southwest from Tatoosh (www.ndbc.noaa.gov), and remote sensing of chl a (SeaWiFS, AquaModis).

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

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.

Changes in surface winds due to El Nino and La Nina, the North Atlantic Oscillation and Pacific Decadal Oscillation affect upwelling (Ishii 2002).

Abrupt climate changes can be seen working through the El Niño Southern Oscillation, the Pacific Decadal Oscillation, the North Atlantic Oscillation, the Southern Annular Mode, the Artic Oscillation, the Indian Ocean Dipole and other measures of ocean and atmospheric states.