Sentences with phrase «warmer ocean temperatures mean»

Not exact matches

The earth's ocean temperatures are getting warmer, too — which means that tropical storms can pick up more energy.

He said he does think, however, that there will a broader shift to warmer ocean conditions that will last for several years and that means that global temperatures will hover around the level they have recently reached before moving upward again, like stairs on a staircase.

For the change in annual mean surface air temperature in the various cases, the model experiments show the familiar pattern documented in the SAR with a maximum warming in the high latitudes of the Northern Hemisphere and a minimum in the Southern Ocean (due to ocean heat uptakOcean (due to ocean heat uptakocean heat uptake)(2)

The East Pacific Ocean (90S - 90N, 180 - 80W) has not warmed since the start of the satellite - based Reynolds OI.v2 sea surface temperature dataset, yet the multi-model mean of the CMIP3 (IPCC AR4) and CMIP5 (IPCC AR5) simulations of sea surface temperatures say, if they were warmed by anthropogenic forcings, they should have warmed approximately 0.42 to 0.44 deg C.

The Arctic is warming more than twice as fast as the rest of the planet, because as ice melts at the top of the world, there is less of it to reflect sunlight back into space, so more of it is absorbed by ocean waters; more absorbed sunlight means even warmer temperatures, which means more ice melt a circular process known as Arctic amplification.

The diagnostics, which are used to compare model - simulated and observed changes, are often simple temperature indices such as the global mean surface temperature and ocean mean warming (Knutti et al., 2002, 2003) or the differential warming between the SH and NH (together with the global mean; Andronova and Schlesinger, 2001).

The Fourth Assessment Report finds that «Warming of the climate system is unequivocal, as is now evident from observations of increases in global average air and ocean temperatures, widespread melting of snow and ice, and rising mean sea level.

The average mean temperature in January ranges from 53 - 59 degrees F; summers are a little warmer with an average mean temperature in July that ranges from 62 - 70 degrees F. Both winter and summer temperature extremes are moderated by the moist ocean air with generally high nighttime humidities and frequent fog.

If mean global temperatures trending significantly upward over the last 100 years isn't worrying enough for you, how about that giant piece of Antarctica that is about to crack off and sink into the ocean... I don't know how the existence of global warming is still a debate!

I particularly enjoyed the slides that, when combined (1) provided an overview of hotter and cooler CO2 molecules as it relates to how they are seen from outer space and from profile — because this will make it easier for me to explain this process to others; (2) walked through the volcanic and solar activity vs assigning importance to CO2 changes — because this another way to help make it clearer, too, but in another way; (3) discussed CO2 induced warming and ocean rise vs different choices we might make — because this helps point out why every day's delay matters; and (4) showed Figure 1 from William Nordhaus» «Strategies for Control of Carbon Dioxide» and then super-imposed upon that the global mean temperature in colors showing pre-paper and post-paper periods — because this helps to show just how far back it was possible to make reasoned projections without the aid of a more nuanced and modern understanding.

Anthropogenic climate change will mean an increased average temperature for the oceans and possible changes in current systems that could locally amplify or reduce warming and can alter nutrient cycling resulting in changes in the amount of nutrients available for the growth of phytoplankton, the plant plankton that are the base of the food chain.

And it comes from Emanuel I believe, which is to say the Pacific and Indian Oceans are already warmer, thus this is an opening in the natural system that needs to catch up given the rising global mean temperature.

Arguing wheter ocean or land temperature raise to decide global warming is no meaning.

The corals lie within the Western Pacific Warm Pool, which at present has the highest mean annual temperature in the world's ocean.

By comparing modelled and observed changes in such indices, which include the global mean surface temperature, the land - ocean temperature contrast, the temperature contrast between the NH and SH, the mean magnitude of the annual cycle in temperature over land and the mean meridional temperature gradient in the NH mid-latitudes, Braganza et al. (2004) estimate that anthropogenic forcing accounts for almost all of the warming observed between 1946 and 1995 whereas warming between 1896 and 1945 is explained by a combination of anthropogenic and natural forcing and internal variability.

Stronger vertical mixing invigorates the MOC [Meridonal Overturning Circulation] by an order of magnitude, increases ocean heat transport by 50 — 100 %, reduces the zonal mean equator - to - pole temperature gradients by up to 6 °C, lowers tropical peak terrestrial temperatures by up to 6 °C, and warms high - latitude oceans by up to 10 °C.»

The change of IPO from negative to positive means upcoming period of warmer Eastern Pacific Ocean temperature.

Since then there are a number of papers published on why the warming was statistically insignificant including a recent one by Richardson et al. 2016 which tries to explain that the models were projecting a global tas (temperature air surface) but the actual observations are a combination of tas (land) and SST oceans, meaning projected warming shouldn't be as much as projected.

Many agricultural regions warm at a rate that is faster than the global mean surface temperature (including oceans) but slower than the mean land surface temperature, leading to regional warming that exceeds 0.5 °C between the +1.5 and +2.0 °C Worlds.

The Fourth Assessment Report finds that «Warming of the climate system is unequivocal, as is now evident from observations of increases in global average air and ocean temperatures, widespread melting of snow and ice, and rising mean sea level.

Well warmer ocean temperatures generally means more water vapor gets into the air, and that means more and / or bigger storms, flooding, a warmer Arctic, etc..

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 red and white colors mean above - normal, or very warm, temperatures in that area of the Pacific Ocean.

This partitioning ratio is temperature - dependent, meaning that if you warm the ocean it changes, albeit slightly.

Then, especially when there is excessive cloud cover over the oceans, the Sun's energy absorbed above the clouds can actually make its way down to the ocean surface (and below) warming the oceans by non-radiative processes, not by direct solar radiation which mostly passes through the thin surface layer and could barely raise the mean temperature of an asphalt paved Earth above -35 C.

This means it will take centuries to millennia for deep ocean temperatures to warm in response to today's surface conditions, and at least as long for ocean warming to reverse after atmospheric greenhouse gas concentrations decrease (virtually certain).

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From the paper: «The results also 1) reveal a significant level of coupling between ocean and land temperatures that remains even after the effects of ENSO and volcanic eruptions have been removed; 2) serve to highlight the improvements in the quality of the time series of global - mean land temperatures with the increase in the areal coverage of the station network from 1951 onward; and 3) yield a residual time series in which the signature of anthropogenically induced global warming is more prominent.»

To point out just a couple of things: — oceans warming slower (or cooling slower) than lands on long - time trends is absolutely normal, because water is more difficult both to warm or to cool (I mean, we require both a bigger heat flow and more time); at the contrary, I see as a non-sense theory (made by some serrist, but don't know who) that oceans are storing up heat, and that suddenly they will release such heat as a positive feedback: or the water warms than no heat can be considered ad «stored» (we have no phase change inside oceans, so no latent heat) or oceans begin to release heat but in the same time they have to cool (because they are losing heat); so, I don't feel strange that in last years land temperatures for some series (NCDC and GISS) can be heating up while oceans are slightly cooling, but I feel strange that they are heating up so much to reverse global trend from slightly negative / stable to slightly positive; but, in the end, all this is not an evidence that lands» warming is led by UHI (but, this effect, I would not exclude it from having a small part in temperature trends for some regional area, but just small); both because, as writtend, it is normal to have waters warming slower than lands, and because lands» temperatures are often measured in a not so precise way (despite they continue to give us a global uncertainity in TT values which is barely the instrumental's one)-- but, to point out, HadCRU and MSU of last years (I mean always 2002 - 2006) follow much better waters» temperatures trend; — metropolis and larger cities temperature trends actually show an increase in UHI effect, but I think the sites are few, and the covered area is very small worldwide, so the global effect is very poor (but it still can be sensible for regional effects); but I would not run out a small warming trend for airport measurements due mainly to three things: increasing jet planes traffic, enlarging airports (then more buildings and more asphalt — if you follow motor sports, or simply live in a town / city, you will know how easy they get very warmer than air during day, and how much it can slow night - time cooling) and overall having airports nearer to cities (if not becoming an area inside the city after some decade of hurban growth, e.g. Milan - Linate); — I found no point about UHI in towns and villages; you will tell me they are not large cities; but, in comparison with 20-40-60 years ago when they were «countryside», many small towns and villages have become part of larger hurban areas (at least in Europe and Asia) so examining just larger cities would not be enough in my opinion to get a full view of UHI effect (still remembering that it has a small global effect: we can say many matters are due to UHI instead of GW, maybe even that a small part of measured GW is due to UHI, and that GW measurements are not so precise to make us able to make good analisyses and predictions, but not that GW is due to UHI).

This suggests three levels of skepticism even in Muller's mind: a) global warming which in the context means the land temperature record (not the ocean heat as Pielke Sr would prefer) b) its human causes (where Judith Curry also parts company with Muller) and c) what can and should be done about b).

From the University of Southampton: New study finds variations in global warming trend are caused by oceans New research has shown that natural variations in global mean temperature are always forced by...

(Someone somewhere I saw recently, maybe in this thread estimated that if all the excess heat in the ocean were distributed to the lower atmosphere instead the global mean surface temperature would be 36 C warmer.

Presumably you mean a patch of water on the ocean cooled by a value D degs.C would reduce the surface temperature by more than an equal and opposite patch of water warmed by D Degs.C would warm it *.

Importantly, these trends can largely be explained by increases in mean ocean temperatures, suggesting that we can expect further increases in marine heatwave days under continued global warming.»

Helen Cleugh, science director at CSIRO Oceans and Atmosphere Flagship, says measurements do show that the rate at which global mean surface temperature has warmed in the past decade is less than the previous decade.

Kevin C's excellent trend tool shows us what the new data mean for the surface temperature trend since 1970: it's about +0.17 C per decade, but there's a range in that because short term wiggles are caused by things like the El Nino - La Nina cycle in the Pacific which warm or cool the atmosphere by storing or releasing heat from the oceans.

They compared their storm surge index to changes in global surface temperature, to temperatures in the Main Development Region (MDR; a part of the Atlantic Ocean where most hurricanes form), and to MDR warming relative to the tropical mean temperatures (rMDR).

According to a recently published paper in the journal Science, (Cook et al., 2016, «Ocean forcing of glacier retreat in the western Antarctic Peninsula»), between 1945 and 2009 the mean ocean temperature warmed at depths of 150 to 400 meters for about 3 / 4ths of the waters surrounding the western Antarctic Peninsula Ocean forcing of glacier retreat in the western Antarctic Peninsula»), between 1945 and 2009 the mean ocean temperature warmed at depths of 150 to 400 meters for about 3 / 4ths of the waters surrounding the western Antarctic Peninsula ocean temperature warmed at depths of 150 to 400 meters for about 3 / 4ths of the waters surrounding the western Antarctic Peninsula (AP).

* There is no such thing as a meaningful «Earth» temperature, as some regions are cooling, some are warming, the depths of the ocean have different levels of heat content that can not be uniformly measured against a mean, etc..

The results here reveal a larger picture — that the western tropical Indian Ocean has been warming for more than a century, at a rate faster than any other region of the tropical oceans, and turns out to be the largest contributor to the overall trend in the global mean sea surface temperature (SST)»

HS12 assume that deep ocean temperature change was similar to global mean surface temperature change for Cenozoic climates warmer than today, but this relationship does not hold true for colder climates.

22 Land areas are projected to warm more than the oceans with the greatest warming at high latitudes Annual mean temperature change, 2071 to 2100 relative to 1990: Global Average in 2085 = 3.1 o C

The temperature trends during the past decades as observed and in the (ensemble mean) model response (Fig. 4) are roughly consistent with each other, which indicates that much of the land warming is a response to the warming of the oceans.

I guess it means that most of the ocean surface temperatures are something like 3.5 degrees C warmer than before.

However, ocean temperatures have warmed almost everywhere on the planet, with 0.5 ºC being the global mean rise of sea surface temperature, hence Trenberth's reasonable estimate that this much is the contribution from global forcings like CO2.

Increases in surface temperatures don't necessarily mean that the bulk oceans have warmed.

Changes in mean global ocean pH / pCO2, due to uptake of anthropogenic CO2, will reduce pH (ca − 0.3 to 0.5 units / 500 + µatm), and global warming will contribute to increased sea surface temperature (+1.1 to 6.4 °C), by 2100 [1 — 4,7].

And that, combined with the current record ocean temperatures — and faster than expected warming of the ocean's surface layer — means we can expect a continuation of the unexpectedly fast loss of Arctic sea ice and of land - locked ice in Greenland and Antarctica.

The earth's ocean temperatures are getting warmer, too — which means that tropical storms can pick up more energy.

When the ocean warms further, this balance likely means that sea ice onset will start at even colder temperatures, with the warming atmosphere this will make a refreeze of the Arctic Ocean well into the long nocean warms further, this balance likely means that sea ice onset will start at even colder temperatures, with the warming atmosphere this will make a refreeze of the Arctic Ocean well into the long nOcean well into the long night.