Sentences with phrase «current warming phase»

Could GCM projections substantially overestimate temperature trends for the western US if PDO shifts from its current warm phase to a cool phase?

Not exact matches

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

Current data are not accurate enough to identify whether warming started earlier in the Southern Hemisphere (SH) or Northern Hemisphere (NH), but a major deglacial feature is the difference between North and South in terms of the magnitude and timing of strong reversals in the warming trend, which are not in phase between the hemispheres and are more pronounced in the NH (Blunier and Brook, 2001).

I'm a fish geneticist so I won't bother commenting on «paleo - ocean current - ology», but it seems to me that glaciation would result in a reduction of fresh water inputs to the North Atlantic (during the ice age) and would therefore be quite different from the mechanism in question (which is related to early phases of global warming).

Also, I'm not sure I see strong support for this concluding sentence: «Although polar bears have persisted through previous warm phases, multiple human - mediated stressors (e.g., habitat conversion, persecution, and accumulation of toxic substances in the food chain) could magnify the impact of current climate change, posing a novel and likely profound threat to polar bear survival.»

Remember, we are at or near what would, absent global warming, be the end of the current interglacial phase of the earth's million - year - old climate cycle.

Apparently the current belief (discussed starting on page 18, and like most such statements accompanied by a caveat that much more research is needed) is that the PDO itself is closely linked to global warming, which is to say we can expect it to spend a lot more time in the positive phase as global warming progresses.

Surely you have more to present than that to support your claim, ``... the duration of the current positve phase of the PDO over the last 30 years... can very much be linked (albeit not with absolute certainty) to anthropogenic global warming.»

A significant aspect of the forecast is an exuberant prediction for strengthening of the current El Niño / Southern Oscillation (ENSO) warm phase and its accompanying interaction with the Pacific - North American mode at higher latitudes.

We have had lengthy heating phase caused by a spurt of insolation, now we have had a big El Nino, a subsequent shift to La Nina and the resulting warm currents moving up the the Western Pacific, causing warming polar oceans and changes in atmospheric water vapor content.

Most interesting is that the about monthly variations correlate with the lunar phases (peak on full moon) The Helsinki Background measurements 1935 The first background measurements in history; sampling data in vertical profile every 50 - 100m up to 1,5 km; 364 ppm underthe clouds and above Haldane measurements at the Scottish coast 370 ppmCO2 in winds from the sea; 355 ppm in air from the land Wattenberg measurements in the southern Atlantic ocean 1925-1927 310 sampling stations along the latitudes of the southern Atlantic oceans and parts of the northern; measuring all oceanographic data and CO2 in air over the sea; high ocean outgassing crossing the warm water currents north (> ~ 360 ppm) Buchs measurements in the northern Atlantic ocean 1932 - 1936 sampling CO2 over sea surface in northern Atlantic Ocean up to the polar circle (Greenland, Iceland, Spitsbergen, Barents Sea); measuring also high CO2 near Spitsbergen (Spitsbergen current, North Cape current) 364 ppm and CO2 over sea crossing the Atlantic from Kopenhagen to Newyork and back (Brements on a swedish island Lundegards CO2 sampling on swedish island (Kattegatt) in summer from 1920 - 1926; rising CO2 concentration (+7 ppm) in the 20s; ~ 328 ppm yearly average

If we focus too much on the warming in the current El Nino phase, we have to accept that the contrarians will focus on the cooling in the next La Nina phase.

In a PDO warm phase with a positive heat anomaly in the Northwest Pacific, does this current slow or strengthen please?

The sun has recently gone into a less active phase of fewer sun - spots, and the ocean decadal currents have changed from a warming to a cooling phase.

Figure 5 - Atlantic ocean warming down to 1500 metres for the 1999 - 2012, a period covering the majority of the current negative IPO phase.

They confirmed that the oceans have warmed substantially, most notably in the deeper layers, and that the strongest warming during this current negative IPO phase has been in the deep of the Southern and Atlantic Oceans.

One of the rationales given by Chen & Tung for dismissing the role of the IPO in deep ocean warming is the expectation that the Pacific Ocean basin should have warmed more during the current (2000 - to present) IPO negative phase.

The IPO is also thought to influence global temperature, as the current hiatus in global warming has been related to the late 1990's phase change [Meehl et al., 2013; England et al., 2014].

The width can change artificially by the current period being in a faster warming phase than the base period.

But his emphasis on the ENSO changes to explain the current «standstill» begs the question: «if a La Niña phase is now causing a lack of 21stC warming, could it have been the unusual frequency and magnitude of 20thC El Niños (rather than GHGs) that were the principal cause for the late 20thC warming?»

- Notice, during the current cold phase, there has been permanent ice caps in Antarctica for only 10 million years and at the North Pole for less than 5 million years (demonstrating that ice caps are a rare event in Earth's history, which shows we are in a cold phase)- Notice that the planet has had no ice caps — therefore it has been much warmer than now — for about 80 % of the past 500 million years.

Regarding the Milankovitch cycle, we are in a current cooling phase (but the planet is warming at a remarkable rate).

It is further shown that the warm phase of the AMO corresponds to a strengthening of the Atlantic meridional overturning circulation (AMOC) and a weakening of the Atlantic subtropical cell (STC), which both induce an anomalous northward current in the TNA subsurface ocean.

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.

Because the mean meridional temperature gradient of the subsurface ocean is positive because of the temperature dome around 9 ° N, the advection by the anomalous northward current cools the TNA subsurface ocean during the warm phase of the AMO.

The paper being discussed here makes the claim that the current hiatus in warming is due to the heat going into the Atlantic ocean as the Atlantic ocean is currently in the 30 year cooling phase of it's ~ 60 year warming / cooling cycle.

In your most current comment to me, you go on to quote Nathan Mantua of JISAO, «Typical surface climate anomaly patterns for warm phases of PDO are shown in Figure 1.

[*) Another contributing factor to a dominantly positive phase for the NAO index is current and expected SST anomaly, with relatively cold waters west of the Azores, favouring high pressure build - up there, and relatively warm waters off the US - Canadian east coast, favouring northerly Atlantic depression formation (especially during offshore winds).]

Bart says: June 8, 2010 at 11:20 am What he has shown is that the phasing of these natural cycles is such that they constructively interfere in recent times to produce at least a substantial portion of our current warming cycle.

What he has shown is that the phasing of these natural cycles is such that they constructively interfere in recent times to produce at least a substantial portion of our current warming cycle.

The argument presented by the Prudent Path document is that the current Arctic warming phase is lesser in magnitude than the early century one.

Given the current phase of global warming, which is causing temperatures in the tropical Pacific to rise, the world might see «enhanced ENSO variability — more severe El Niños and La Niñas, and more extreme climate conditions around the globe,» Li told OurAmazingPlanet.

He later added: What he has shown is that the phasing of these natural cycles is such that they constructively interfere in recent times to produce at least a substantial portion of our current warming cycle.

Current signs though indicate that the pattern is being transformed to the opposite phase as the eastern Pacific is observed to having warmer than usual water.

It could mean that we are actually in the warming phase of the current interglacial or that we are on the leading edge of a positive «noise» artifact within a long - term either positive, negative, or neutral trend.

2) The current faster strengthening of hurricanes has NOTHING to do with anthropogenic global warming (AGW), but rather it depends on the AMO phase.

About 10 million years into the current period, the Cenozoic Era, the Earth went through a relatively rapid warming phase, which lasted for about 150,000 years and spiked global temperatures by an extra 5 ° C (9 ° F).