Sentences with phrase «recent upper ocean»

The set of Comments and the original posting on Real Climate have advanced the discussion of the signficance and the issues associated with the observed recent upper ocean cooling.

Not exact matches

Or put another way, the average annual energy absorbed by the upper ocean alone equals 43 times the amount of energy the U.S. consumed in 2012, the most recent year with data available.

Josh and his colleagues published a paper entitled «Recent cooling of the upper ocean ``, but soon found out that the cooling was due to problems in both the earlier XBT data and software problems in a group of North Atlantic Argo floats.

This recent slower warming in the upper ocean is closely related to the slower warming of the global surface temperature, because the temperature of the overlaying atmosphere is strongly coupled to the temperature of the ocean surface.

I wonder, given the recent news about the various ways plankton actively affect the oceans, including churning the upper 100 meters, if any of the cycles could reflect big changes in which species predominate over time.

Given that the other important variables (sea surface temps, depth of the warm layer, and atmospheric moisture) are all predicted to increase, it seems hard to make the claim that tropical cyclones will be unchanged, just as it seemed unwise to claim that Lyman et al's «Recent cooling of the upper oceans» meant that climate models had fatal flaws.

... The recent cooling of the upper ocean implies a decrease in the thermosteric component of sea level.

What is happening here is that the two (Hansen and Trenberth) whom you describe as «not, in fact, fanatics blinded by dogma» were surprised by the recent «lack of warming» (i.e. slight cooling) of the atmosphere as well as the upper ocean, despite CO2 increase to record levels, as this does not provide much support for the premise that human CO2 is driving our climate.

A heat capture that was alluded to in a recent scientific paper which found the upper Southern Ocean contained between 24 and 55 percent more heat than expected.

DK12 used ocean heat content (OHC) data for the upper 700 meters of oceans to draw three main conclusions: 1) that the rate of OHC increase has slowed in recent years (the very short timeframe of 2002 to 2008), 2) that this is evidence for periods of «climate shifts», and 3) that the recent OHC data indicate that the net climate feedback is negative, which would mean that climate sensitivity (the total amount of global warming in response to a doubling of atmospheric CO2 levels, including feedbacks) is low.

But until now, scientists were not sure how the heat energy in the upper ocean had changed in recent decades or what ocean warming meant for the Earth's energy balance.

A recent study highlights results obtained from an aircraft ocean survey that targeted a large warm core eddy in the eastern Caribbean Sea, where upper ocean measurements are crucial to understanding the complexities of heat and moisture transfer during the passage of tropical cyclones.

«In recent years, from 2004 to 2011, while the upper ocean is not warming, the ocean continues to absorb heat at depth (e.g., Levitus et al. 2012; von Schuckman and Le Traon 2011), here estimated at a rate of 0.56 W m - 2 when integrating over 0 — 1800 m.»

New Dutch research has shown for instance the overturning has been relatively weak in recent years [which means cold water has accumulated close to the surface instead of sinking to deeper waters, one of two reasons why there has been a lull in upper ocean warming].

In the first comprehensive biogeochemical model of this «Canfield Ocean,» Johnston et al. (2) in a recent issue of PNAS present a stunningly different take on those early photosynthesizers — one in which the upper, light - containing layers indeed drove biological production but without the expected concomitant release of oxygen.

Volcanic eruptions and El Niño events are identified as sharp cooling events punctuating a long - term ocean warming trend, while heating continues during the recent upper - ocean - warming hiatus, but the heat is absorbed in the deeper ocean.

But that explanation is contradicted by a recent evaluation of Arctic Ocean heat content (Wunsch and Heimbach 2014 discussed here) which reveals the upper 700 meters of the Arctic Ocean have been cooling.

The IPCC hypothesis that AGW, caused principally by human CO2 emissions, has been the primary cause of past warming and that it represents a serious potential threat to humanity or our environment is an «uncorroborated hypothesis» at this time, unless one agrees with Pielke that the recent decadal lack of warming of the atmosphere (surface plus troposphere) as well as the upper ocean despite record increase in CO2 levels has falsified it, in which case it has become a «falsified hypothesis», until such time that the falsification can be refuted with empirical evidence.

This is significantly deeper than other recent papers that focus on upper ocean heat, only going down to 700 metres.

«The recent dramatic cooling of the average heat content of the upper oceans, and thus a significant negative radiative imbalance of the climate system for at least a two year period, that was mentioned in the Climate Science weblog posting of July 27, 2006, should be a wake - up call to the climate community that the focus on predictive modeling as the framework to communicate to policymakers on climate policy has serious issues as to its ability to accurately predict the behavior of the climate system.

RE # 80, Steve, the trend in global ocean temperatures would be unaffected by Lyman et al's «Recent cooling of the upper oceans» even if it was correct, and a correction doesn't change that either.

In addition, they found that the deep ocean has warmed over the recent years, while the upper 300m of the oceans have «stabilised».

Recent cooling of the upper ocean.

Regarding flatness over this period, the Lyman and Johnson paper referenced by Judith says this: «In recent years, from 2004 to 2011, while the upper ocean is not warming, the ocean continues to absorb heat at depth (e.g., Levitus et al. 2012; von Schuckman and Le Traon 2011), here estimated at a rate of 0.56 Wm2 when integrating over 0 — 1800 m.» That 0.56 Wm2 figure is again pretty close to what the Balmeseda et al. reanalysis produces.

for the most recent lack of warming of both the atmosphere at the surface (HadCRUT) and the upper ocean (ARGO) is «unlikely to prove a «game changer» < / em.

As I've noted above, Judith doesn't appear to show any like - for - like comparison which suggests inconsistency between the reanalysis and observational data (keeping with the convention of separating the two in these terms despite what I've said above) for recent upper and lower ocean comparative trends.

http://climatesci.colorado.edu/2007/04/11/correction-to-paper-on-recent-ocean-cooling-to-be-available-soon/ April 11, 2007 Correction To Paper on Recent Ocean Cooling To Be Available Soon Filed under: Uncategorized — Roger Pielke Sr. @ 4:29 pm The correction to the paper Lyman, J. M., J. K. Willis, and G. C. Johnson (2006), Recent cooling of the upper ocean, Geoocean-cooling-to-be-available-soon/ April 11, 2007 Correction To Paper on Recent Ocean Cooling To Be Available Soon Filed under: Uncategorized — Roger Pielke Sr. @ 4:29 pm The correction to the paper Lyman, J. M., J. K. Willis, and G. C. Johnson (2006), Recent cooling of the upper ocean, GeoOcean Cooling To Be Available Soon Filed under: Uncategorized — Roger Pielke Sr. @ 4:29 pm The correction to the paper Lyman, J. M., J. K. Willis, and G. C. Johnson (2006), Recent cooling of the upper ocean, Geoocean, Geophys.

Interestingly, there's a recent paper out which suggests that ocean heat uptake due to tropical cyclone upper ocean mixing has been significantly overestimated in the past, so it'll be interesting to see how this develops in the community.