Sentences with phrase «oceanic warming in»

Not exact matches

Brasier's find suggests that life on Earth started not near some oceanic thermal vent but rather in a warm, oxygen - depleted bath near the surface.

Gates and van Oppen are aiming to look specifically at areas that have already survived massive bleaching events, such as Moorea in French Polynesia, the central Great Barrier Reef in Australia, and the Seychelles, where 97 % of corals in the inner islands died following the 1997 — 98 El Niño oceanic warming event.

Their research, published in Nature Climate Change on June 29, is the first attempt to examine and document these changes in the air - sea heat exchange in the region — brought about by global warming — and to consider its possible impact on oceanic circulation, including the climatologically important Atlantic Meridional Overturning Circulation.

At that time, changes in atmospheric - oceanic circulation led to a stratification in the ocean with a cold layer at the surface and a warm layer below.

It can not be seen directly because of oceanic damping, but it does call for about ~ 0.3 C of warming (instead of ~ 0.1 C from pure TSI) in the early 20th century based on Lockwood's solar activity reconstructions.

Just a general observation in regards to the oceanic heat content value in determining global warming.

Note that Ekman pumping does not penetrate deep into the oceanic interior, but since the trades advect the surface waters westward, the upper layer of warm sea water is deeper in the west than in the east.

Other studies have linked these oceanic cycles with earlier snowmelts and warmer winters in California since the 1940s, and with a decline in California's coastal fog since the early 20th century.

Substantial and correlated changes in marine carbonate (CaCO3) content of oceanic sediments commonly accompany the transitions from cold glacial periods to warm interglacial periods.

In the case of warming caused by a disproportionate increase in atmospheric CO2 (compared with oceanic CO2), an increase in temperatures only slows down the rate at which CO2 is absorbed by the oceanIn the case of warming caused by a disproportionate increase in atmospheric CO2 (compared with oceanic CO2), an increase in temperatures only slows down the rate at which CO2 is absorbed by the oceanin atmospheric CO2 (compared with oceanic CO2), an increase in temperatures only slows down the rate at which CO2 is absorbed by the oceanin temperatures only slows down the rate at which CO2 is absorbed by the oceans.

You've got the radiative physics, the measurements of ocean temperature and land temperature, the changes in ocean heat content (Hint — upwards, whereas if if was just a matter of circulation moving heat around you might expect something more simple) and of course observed predictions such as stratospheric cooling which you don't get when warming occurs from oceanic circulation.

ENSO events, for example, can warm or cool ocean surface temperatures through exchange of heat between the surface and the reservoir stored beneath the oceanic mixed layer, and by changing the distribution and extent of cloud cover (which influences the radiative balance in the lower atmosphere).

And as both researchers made clear, neither idea addresses the rising levels of carbon dioxide (CO2) in the atmosphere that is primarily to blamefor global warming and higher levels of oceanic acid.

Occurring offshore in blue oceanic waters, the blue marlin prefers to stay in the warm waters near the surface, above the thermocline.

This is consistent with the finding that reduced warming is not mainly a result of a change in radiation balance but due to oceanic heat storage.

ENSO events, for example, can warm or cool ocean surface temperatures through exchange of heat between the surface and the reservoir stored beneath the oceanic mixed layer, and by changing the distribution and extent of cloud cover (which influences the radiative balance in the lower atmosphere).

Small changes in oceanic or atmospheric circulation due to small changes in radiative equilibrium may translate in flooding here and drying there, warming here and cooling there, etc..

Just a general observation in regards to the oceanic heat content value in determining global warming.

When I was at school in the fifties, the oceanic warm and cold currents were clearly marked and learnt as fact.

In the few weeks / months of interim publishing, several papers have come out which, at first glance, support the MISI hypothesis with evidence or processes already under way (such as mid-level oceanic warming undercutting the PIG and Thwaites, amongst others.

From it, I'll only address the SkS «thermal inertia» quote, which Victor took to imply a lag in response: the proposed 21 - year delay between atmospheric warming and oceanic warming.

Original post Last summer, a paper published in Nature, «Global phytoplankton decline over the past century,» caught the attention of climate campaigners and some media outlets because it concluded that warming of the seas over the last century was linked with a big and near - global decline in oceanic phytoplankton.

According to NASA scientists, this was the ninth warmest year in 132 years of recordkeeping, despite the cooling influence of the La Niña atmospheric and oceanic circulation pattern and relatively low solar irradiance.

And given the fact that land warms more quickly than ocean, resulting in areas of low pressure over land, changing patterns of atmospheric and oceanic circulation are bringing them to the coasts — where so much life's diversity is found.

Note that Ekman pumping does not penetrate deep into the oceanic interior, but since the trades advect the surface waters westward, the upper layer of warm sea water is deeper in the west than in the east.

«The climate patterns responsible for the expected above - normal 2007 hurricane season continue to be the ongoing multi-decadal signal (the set of oceanic and atmospheric conditions that have spawned increased Atlantic hurricane activity since 1995), warmer - than - normal sea surface temperatures in key areas of the Atlantic Ocean and Caribbean Sea, and the El Nino / La Nina cycle»

Inspecting one of the (many) graphs tracking oceanic warming, I noticed a steep upward trend roughly around 2000, 21 years after 1979, when a steep warming trend began in the surface temps.

Warming of the oceans leads to increased vertical stratification (decreased mixing between the different levels in the oceans), which would reduce CO2 uptake, in effect, reducing the oceanic volume available to CO2 absorption from the atmosphere.

This is what happens in our model events pictured above: during cold phases in Greenland, oceanic convection only occurs in latitudes well south of Greenland, but during a DO event convection shifts into the Greenland - Norwegian seas and warm and saline Atlantic waters push northward.

Warming Island with its high mountain walls invariably rises above the fog to show its rock outline while the connecting ice shelf along the entire oceanic straight is completely buried in fog.

This is the first part of a planned mini-series of 3 posts on tropical climate, circulation, and oceanic response in conjunction with a global warming.

This rise may have been eustatically controlled, possibly through a combination of thermal expansion of the oceanic water column and melting of unknown sources of high - altitude or polar ice caps in response to global warming.»

One of the really troubling long - term aspects of oceanic warming is the possibility of anoxic oceans, which have occurred in the deep past during «hothouse Earth» episodes.

(For instance, changes in wind or salinity or seaweed, surface warming in regions (in) sensitive to OHC, perhaps the southern oceans or perhaps NH / SH with their different proportions of land, or variations in the frequency / amplitude of a known oceanic wobble.)

They should have realised that top down high solar activity combined with bottom up positive oceanic influences would in combination be enough to produce the late 20th century warming without having to invoke a significant effect from more CO2.

They say that their research shows that much of the warming was caused by oceanic cycles when they were in a â $ ˜warm modeâ $ ™ as opposed to the present â $ ˜cold modeâ $ ™.

Additionally the oceanic warming and cooling cycles introduce constant, rapid and substantial changes not yet reflected in any models and which invalidate any averaged global estimates of the planetary heat budget.

The spikes around 1998 and 2010 were a consequence of strong El Nino events releasing oceanic warmth to the air resulting in short term warming of the troposphere.

It was oceanic, not greenhouse in origin, and is responsible for the very warm first decade of our century that included several record years.

This CO2 - driven acidification of the oceans is already under way in our own epoch of global warming - and that same oceanic response in the past coincides with massive rises in temperature - the hyperthermal.

Temperature effects are also quite reliable, and are mainly for above normal temperature in and around the warmed oceanic waters in the Pacific.

We are talking fractions of a second.They say changes in the earth's rotation rate may effect the oceanic circulations, causing them to phase from cold to warm etc..

A strengthening ACC created a barrier inhibiting intrusions of warm tropical waters and minimizing both oceanic and atmospheric heat transport resulting in the Refrigerator Effect.

3) In my comment https://judithcurry.com/2011/08/04/carbon-cycle-questions/#comment-198992 I have proved, that the recent increase of CO2 content in atmosphere has been mainly caused by global warming of oceanic sea surfaces, especially in the areas where CO2 sinks on sea surface are; sea surfaces on the areas of CO2 sinks are warming by lag compared to climate warminIn my comment https://judithcurry.com/2011/08/04/carbon-cycle-questions/#comment-198992 I have proved, that the recent increase of CO2 content in atmosphere has been mainly caused by global warming of oceanic sea surfaces, especially in the areas where CO2 sinks on sea surface are; sea surfaces on the areas of CO2 sinks are warming by lag compared to climate warminin atmosphere has been mainly caused by global warming of oceanic sea surfaces, especially in the areas where CO2 sinks on sea surface are; sea surfaces on the areas of CO2 sinks are warming by lag compared to climate warminin the areas where CO2 sinks on sea surface are; sea surfaces on the areas of CO2 sinks are warming by lag compared to climate warming.

GOAL 2: Project a diminished arctic sea - ice cover with multiple warming scenarios and to examine key linkages among atmospheric forcing, sea - ice processes, and oceanic processes in an ice - diminished Arctic Ocean and the adjacent seas.

AIM events are counterparts of the short and more pronounced warming events in the Northern Hemisphere known as Dansgaard — Oeschger events18, and hence are a manifestation of the bipolar seesaw19, 20,21 with oceanic and terrestrial processes likely contributing to the reconstructed CO2 variations22, 23.

In fact, they may do so more efficiently than more uniform temperature change; warming one hemisphere with respect to the other is an excellent way of pulling monsoonal circulations and oceanic ITCZs towards the warm hemisphere (the last few years have seen numerous studies of this response, relevant for ice ages and aerosol forcing as well as the response to high latitude internal variability; Chiang and Bitz, 2005 is one of the first to discuss this, in the ice age context; I'll try to return to this topic in a future postIn fact, they may do so more efficiently than more uniform temperature change; warming one hemisphere with respect to the other is an excellent way of pulling monsoonal circulations and oceanic ITCZs towards the warm hemisphere (the last few years have seen numerous studies of this response, relevant for ice ages and aerosol forcing as well as the response to high latitude internal variability; Chiang and Bitz, 2005 is one of the first to discuss this, in the ice age context; I'll try to return to this topic in a future postin the ice age context; I'll try to return to this topic in a future postin a future post.)

Likewise the oceanic mixed layer (the top one or two hundred meters of water that is roughly constant in temperature compared to deeper down, due to wave - induced mixing in that layer) delays global warming but does not stop it.

Before it is safe to attribute a global warming or a global cooling effect to any other factor (CO2 in particular) it is necessary to disentangle the simultaneous overlapping positive and negative effects of solar variation, PDO / ENSO and the other oceanic cycles.

In order to properly understand, what is going on in the Arctic ocean, we first must understand the oceanic oscillation and the currents in this vast ocean, it is interesting to note, Sweden is recalling its ice breaker from the USA Antarctic survey, and there is concern in the sea of Okhotsk — where, for the last couple of years breaking the winter sea ice has been a major problem, colder here, relatively «warmer» there etcIn order to properly understand, what is going on in the Arctic ocean, we first must understand the oceanic oscillation and the currents in this vast ocean, it is interesting to note, Sweden is recalling its ice breaker from the USA Antarctic survey, and there is concern in the sea of Okhotsk — where, for the last couple of years breaking the winter sea ice has been a major problem, colder here, relatively «warmer» there etcin the Arctic ocean, we first must understand the oceanic oscillation and the currents in this vast ocean, it is interesting to note, Sweden is recalling its ice breaker from the USA Antarctic survey, and there is concern in the sea of Okhotsk — where, for the last couple of years breaking the winter sea ice has been a major problem, colder here, relatively «warmer» there etcin this vast ocean, it is interesting to note, Sweden is recalling its ice breaker from the USA Antarctic survey, and there is concern in the sea of Okhotsk — where, for the last couple of years breaking the winter sea ice has been a major problem, colder here, relatively «warmer» there etcin the sea of Okhotsk — where, for the last couple of years breaking the winter sea ice has been a major problem, colder here, relatively «warmer» there etc..