Sentences with phrase «cool phase pacific»

Cool phase Pacific Decadal Oscillation winters are generally wetter and colder.

Not exact matches

El Nino and La Nina refer to the «warm and cool phases of a recurring climate pattern across the tropical Pacific,» according to the National Oceanic and Atmospheric Administration.

In April 2008, scientists at NASA's Jet Propulsion Laboratory announced that while the La Niña was weakening, the Pacific Decadal Oscillation (PDO)-- a larger - scale, slower - cycling ocean pattern — had shifted to its cool phase.

The Pacific Ocean's current cool phase is driving the global warming slowdown — but that countering effect is not going to last, scientists say.

During its positive phase the ocean temperatures in the tropical Pacific are unusually warm and those outside this region to the north and south are often unusually cool.

Since the end of last El Niño warming event of 1997 to 1998, the tropical Pacific Ocean has been in a relatively cool phase — strong enough to offset the warming created by greenhouse gas emissions.

It has been in a cool, La Niña - like phase for 10 years, causing heat to sink deep into the Pacific.

The recurring wave pattern of intense rain and thunderstorms, followed by a dry phase as the force moves across the cooler Pacific Ocean occurs every 30 - 60 days, giving this atmospheric wave its unique stamp on the climate.

Naturally occurring interannual and multidecadal shifts in regional ocean regimes such as the Pacific El Niño - Southern Oscillation, the North Atlantic Oscillation, and the Atlantic Multidecadal Oscillation, for example, are bimodal oscillations that cycle between phases of warmer and cooler sea surface temperatures.

But, according to a new analysis in the journal Geophysical Research Letters by Ben Henley and Andrew King of the University of Melbourne, the 1.5 °C target may be reached or exceeded as early as 2026 if the Interdecadal Pacific Oscillation (IPO) shifts sea surface temperatures in the Pacific from a cool to a warm phase.

Plant drought - tolerant species in years with strong El Niño forecasts, particularly during Pacific Decadal Oscillation warm phase; plant trees that require sufficient water during establishment in La Niña years and during Pacific Decadal Oscillation cool phases Focus planting more in spring as fall planting becomes more difficult with reduced soil moisture and test different planting timings as springs shift earlier

The most influential cycles are the El Niño Southern Oscillation and the Pacific Decadal Oscillation, which is a mighty cycle that typically takes 20 to 30 years to switch between its warm and cool phases.

It's a pattern of ocean temperatures in the Pacific that has a warm and cool phase.

La Niña is the positive phase of the El Niño Southern Oscillation and is associated with cooler than average sea surface temperatures in the central and eastern tropical Pacific Ocean.

The Pacific Decadal Oscillation and the Atlantic Multidecadal Oscillation have «fluttered» into their cooling phase under the impetus of the cooler sun.

A new paper by Andrew Dessler of Texas A&M University bolsters the established view of clouds» role as a feedback mechanism — but not driver — in climate dynamics through a decade of observation and analysis of El Nino and La Nina events (periodic warm and cool phases of the Pacific Ocean).

It's important to note that a substantial short - term influence on the globe's average temperature, the cycle of El Niño warmth and La Niña cooling in the tropical Pacific Ocean, was in the warm phase until May but a La Niña cooling is forecast later this year, according to the Climate Prediction Center of the National Oceanic and Atmospheric Administration.

Some highlights: Over part of the past year, the Pacific was in its cyclical cool phase, called La Niña; the Arctic remained far warmer than usual for recent decades.

This cooling is the result of natural long - term swings in ocean surface temperatures, particularly swings in the Interdecadal Pacific Oscillation or mega-El Niño - Southern Oscillation, which has lately been in a mega-La Niña or cool phase.

The Jet Propulsion Laboratory of NASA recently reported that the Pacific Ocean appears to be reverting to a cool phase, as well.

The models overestimated warming from 1979 - 2011, but if you look at GISTEMP for example you can see that the East Pacific is cooler in 2011 than it was in 1979 and the models did not capture that as they have no PDO in the correct phase and are not expected to because PDOs are transient changes.

In winter, the effect of the cooler phase of the oscillation on the northern hemisphere is to depress temperatures slightly; but in summer, the cooler waters in the equatorial Pacific have less impact on the northern hemisphere's weather.

It was then called the Great Pacific Climate Shift but since that time it has been subsumed into the PDO phase shift from cool to warm phase that supposedly has a thirty year period.

The negative phase of IPO is characterized by cooler - than - average sea surface temperatures in the Eastern Pacific, facilitating the expansion of Antarctic sea ice.

As seen in Figure 2, a cool phase PDO is associated with cool sea surface temperatures along the Pacific coast of North America, but the center of the North Pacific ocean is still quite warm.

Nor is anyone informed that during an earlier cool phase of the Pacific Decadal Oscillation, the droughts of the 1950s brought even less precipitation to the region, yet there was still greater river flow and less damage to the bay's fisheries.

The typical V of a cool Pacific decadal phase can be seen in the Pacific with uprising of cold and nutrient rich water in both the north and south east.

For example, in the Pacific, when easterlies increase in strength (as happens during the cool phase of the PDO) the net surface may cool but more heat is being sequestered at depth due to increased Ekman pumping, thus the net energy content of the ocean increases, even with a cool surface layer.

Current «cool» phase of the PDO began in late 1998 / early 1999 (certainly not 2008), and when it flipped it generally meant cooler sea surface temperatures along the west coast of N. America but warmer temperatures on average over other other broad regions of the Pacific.

The cool phase starts with upwelling which starts with flows in the Peruvian and Californian Currents spinning up with the Pacific gyres.

The cool phase PDO that the Pacific also appears to be strengthening.

In 1976/77 the surface temperature of a vast area of the Pacific Ocean abruptly warmed by several degrees as the Pacific Decadal Oscillation shifted from «cool phase» to «warm phase».

The influence of the Pacific Decadal Oscillation on instrumental and modeled Tsable River summer streamflow is likely linked to the enhanced role of snowmelt in determining summer discharge during cool phases.

This occurred while the Equatorial Pacific was flipped into a cool phase, which tends to lower global temperatures.

«At the time of this writing (May 2010) the tropical Pacific Ocean has changed from El Nino conditions to ENSO - neutral and is likely headed into the cool La Nina phase of the Southern Oscillation.

We are in a cool phase of the Pacific multidecadal variation — and the north - east Pacific is cooling.

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.

«Many climatologists and astrophysicists believe recent sun spot, Pacific Ocean and global temperature trends suggest that our planet may have entered a cool phase that could last for 25 years.

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

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-...]

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.

kim (22:04:11): He also ignores the effect of a PDO in a cooling phase, A cool phase PDO leads to increased sea temperatures in the N Pacific so you'd expect it to enhance melting.

The typical pattern of a cool phase of the Pacific decadal oscillation is for 20 to 40 years of more intense and more frequent La Nina.

However, an ENSO episode is a local release of heat stored in the South Pacific Ocean into the atmosphere (or a local storing of heat causing the atmosphere to cool during the opposite phase).

On that basis I think we will see cooling for a couple of decades due to the negative phase of the Pacific Decadal Oscillation which has just begun then at least one more 20 to 30 year phase of natural warming before we start the true decline as the cooler thermohaline waters from the Little Ice Age come back to the surface.

In 2011 we saw clear evidence of the warm pool in the Pacific northwest (which is the main characteristic of the cool PDO phase) IS capable of «charging» the Walker Circulation pump that drives La Nina and inhibits El Nino.

Recent droughts are therefore not anomalous relative to the ~ 400 year pre-instrumental record... The influence of the Pacific Decadal Oscillation on instrumental and modeled Tsable River summer streamflow is likely linked to the enhanced role of snowmelt in determining summer discharge during cool phases.»

The implications of a cool phase of the Pacific Decadal Oscillation include a decades long and large increase in rainfall, cyclones and flooding in eastern and northern Australia.

The models heavily relied upon by the Intergovernmental Panel on Climate Change (IPCC) had not projected this multidecadal stasis in «global warming»; nor (until trained ex post facto) the fall in TS from 1940 - 1975; nor 50 years» cooling in Antarctica (Doran et al., 2002) and the Arctic (Soon, 2005); nor the absence of ocean warming since 2003 (Lyman et al., 2006; Gouretski & Koltermann, 2007); nor the onset, duration, or intensity of the Madden - Julian intraseasonal oscillation, the Quasi-Biennial Oscillation in the tropical stratosphere, El Nino / La Nina oscillations, the Atlantic Multidecadal Oscillation, or the Pacific Decadal Oscillation that has recently transited from its warming to its cooling phase (oceanic oscillations which, on their own, may account for all of the observed warmings and coolings over the past half - century: Tsoniset al., 2007); nor the magnitude nor duration of multi-century events such as the Mediaeval Warm Period or the Little Ice Age; nor the cessation since 2000 of the previously - observed growth in atmospheric methane concentration (IPCC, 2007); nor the active 2004 hurricane season; nor the inactive subsequent seasons; nor the UK flooding of 2007 (the Met Office had forecast a summer of prolonged droughts only six weeks previously); nor the solar Grand Maximum of the past 70 years, during which the Sun was more active, for longer, than at almost any similar period in the past 11,400 years (Hathaway, 2004; Solankiet al., 2005); nor the consequent surface «global warming» on Mars, Jupiter, Neptune's largest moon, and even distant Pluto; nor the eerily - continuing 2006 solar minimum; nor the consequent, precipitate decline of ~ 0.8 °C in TS from January 2007 to May 2008 that has canceled out almost all of the observed warming of the 20th century.

Girma Orssengo rightly demonstrates that one can not determine climate sensitivity empirically from observed changes in CO2 concentration and in global mean surface temperature unless one either studies periods that are multiples of ~ 60 years to cancel the transient effects of the warming and cooling phases of the Pacific and related ocean oscillations or studies periods centered on a phase - transition in the ocean oscillations.