Sentences with phrase «in deep ocean temperature»

I am also interested in how long is required for the surface temp to «achieve» 95 % of the ECS change: e.g. if climate sensitivity is 2K, how much time is required for the surface temp to increase by 1.9 K; and then how much longer for the deep oceans to increase by 1.9 K (or whatever 95 % of the projected increase in deep ocean temperature works out to.)

Here, we test a new proxy — the oxygen isotopic signature of individual benthic foraminifera — to detect rapid (i.e. monthly to decadal) variations in deep ocean temperature and salinity in the sedimentary record.

The 0.09 C increase in deep ocean temperature may not be felt at the surface for 4000 years or more.

The estimated maximum drop deep in deep ocean temperature is 2.5 C.

I am also interested in how long is required for the surface temp to «achieve» 95 % of the ECS change: e.g. if climate sensitivity is 2K, how much time is required for the surface temp to increase by 1.9 K; and then how much longer for the deep oceans to increase by 1.9 K (or whatever 95 % of the projected increase in deep ocean temperature works out to.)

The estimated maximum drop deep in deep ocean temperature is 2.5 C.

There is a fairly consistent lag in deep ocean temperatures of about 1400 to 1700 k years which produces some neat interactions in the decay responses, likely the Bond Events where the D - O events / oscillations are just more noticeable version of the same situation.

Bova et al., 2016 http://onlinelibrary.wiley.com/doi/10.1002/2016GL071450/abstract «The observational record of deep - ocean variability is short, which makes it difficult to attribute the recent rise in deep ocean temperatures to anthropogenic forcing.

Not exact matches

To promote deeper sleep, invest in room - darkening shades, keep the temperature comfortably cool, and use white noise (radio, CD with ocean sounds, a noisy fan) to help block out distracting sounds.

That wind - driven circulation change leads to cooler ocean temperatures on the surface of the eastern Pacific, and more heat being mixed in and stored in the western Pacific down to about 300 meters (984 feet) deep, said England.

The new sea - level record was then used in combination with existing deep - sea oxygen isotope records from the open ocean, to work out deep - sea temperature changes.

Scientists believe that the different pattern of deep ocean circulation was responsible for the elevated temperatures 3 million years ago when the carbon dioxide level in the atmosphere was arguably what it is now and the temperature was 4 degree Fahrenheit higher.

«Deepest high - temperature hydrothermal vents discovered in Pacific Ocean.»

A study described here today at the American Geophysical Union's biennial Ocean Sciences Meeting shows that RNA's chemical building blocks fall apart within days to years at temperatures near boiling — a finding that poses problems for some origin of life theories, especially ones picturing that life arose in scalding settings such as deep - sea hydrothermal vents.

«Any life emerging during the Hadean eon likely needed to be resistant to high temperatures, and could have survived such a violent period in Earth's history by thriving in niches deep underground or in the ocean's crust.»

The study marks the first time that human influence on the climate has been demonstrated in the water cycle, and outside the bounds of typical physical responses such as warming deep ocean and sea surface temperatures or diminishing sea ice and snow cover extent.

Known as the Antarctic Bottom Waters (AABW), these deep, cold waters play a critical role in regulating circulation, temperature, and availability of oxygen and nutrients throughout the world's oceans.

Analysing new data from marine sediment cores taken from the deep South Atlantic, between the southern tip of South America and the southern tip of Africa, the researchers discovered that during the last ice age, deep ocean currents in the South Atlantic varied essentially in unison with Greenland ice - core temperatures.

Isn't the main problem that, even if we stopped adding any fossil - fuel - derived CO2 to the atmosphere, the ocean circulations haven't yet reached «steady state» — i.e., a stable thermocline and deep ocean temperature — and therefore THAT is the source of the Hansen et al. «heat in the pipeline»?

The research also supports a theory that a parallel pause in air temperature rise in recent years may result from storage of heat in the deep ocean.

Methane Cold Seeps Methane cold seeps are similar to the more famous black smokers in that they form isolated ecosystems as oasis in the deep ocean, but are lower temperatures and form away from mid-ocean ridges.

With higher levels of carbon dioxide and higher average temperatures, the oceans» surface waters warm and sea ice disappears, and the marine world will see increased stratification, intense nutrient trapping in the deep Southern Ocean (also known as the Antarctic Ocean) and nutrition starvation in the other oceans.

Additionally, the paper supports the theory that heat storage in the deep ocean may be partly responsible for the parallel pause in Earth's surface temperatures over the past 13 years.

Many of the deepest branches in Woese's tree, those that join nearest to the three - way junction of the kingdoms, turned out to belong to organisms that live at high temperatures, as in the fuming springs in Yellowstone Park or the volcanic vents that gash the ocean floor.

For as much as atmospheric temperatures are rising, the amount of energy being absorbed by the planet is even more striking when one looks into the deep oceans and the change in the global heat content (Figure 4).

CO2 is more soluble in colder than in warmer waters; therefore, changes in surface and deep ocean temperature have the potential to alter atmospheric CO2.

A new paper from the Sea Around Us Project published in the journal Nature reveals that warmer ocean temperatures are driving marine species towards cooler, deeper waters, and this in turn, has affected global fisheries catches.

A recent slowdown in the upward march of global temperatures is likely to be the result of the slow warming of the deep oceans, British scientists said on Monday.

JacquesLB and Arthur: With respect to the temperature in the deep ocean, I would like to point out that the oceans are filled with seawater, not fresh water.

would a plausible physical explanation be that the deep ocean and ice sheets are still responding somewhat to the post-glacial temperature increase (eg, T - T0, 0 > 0), but that the faster components of SLR like the surface oceans and glaciers were actually responding to the decrease in temperature since the early Holocene?

A fresh analysis of thousands of temperature measurements from deep - diving Argo ocean probes shows (yet again) that Earth is experiencing «unabated planetary warming» when you factor in the vast amount of greenhouse - trapped heat that ends up in the sea.

Long continuous records of temperature and salinity at Ocean Weather Station M in the Norwegian Sea indicate that the deep water has also warmed noticeably.

That would also imply that (T - T0 (t)-RRB- must be negative during the pre-900 period when SLR = 0... would a plausible physical explanation be that the deep ocean and ice sheets are still responding somewhat to the post-glacial temperature increase (eg, T - T0, 0 > 0), but that the faster components of SLR like the surface oceans and glaciers were actually responding to the decrease in temperature since the early Holocene?

This is because (a) the rate of heat penetration into the deeper ocean increases in proportion to temperature (like for ice melt), and (b) the second term we added models the mixed layer response successfully.

The standard assumption has been that, while heat is transferred rapidly into a relatively thin, well - mixed surface layer of the ocean (averaging about 70 m in depth), the transfer into the deeper waters is so slow that the atmospheric temperature reaches effective equilibrium with the mixed layer in a decade or so.

However, atmospheric CO2 content plays an important internal feedback role.Orbital - scale variability in CO2 concentrations over the last several hundred thousand years covaries (Figure 5.3) with variability in proxy records including reconstructions of global ice volume (Lisiecki and Raymo, 2005), climatic conditions in central Asia (Prokopenko et al., 2006), tropical (Herbert et al., 2010) and Southern Ocean SST (Pahnke et al., 2003; Lang and Wolff, 2011), Antarctic temperature (Parrenin et al., 2013), deep - ocean temperature (Elder eld et al., 2010), biogeochemical conditions in the Northet al., 2Ocean SST (Pahnke et al., 2003; Lang and Wolff, 2011), Antarctic temperature (Parrenin et al., 2013), deep - ocean temperature (Elder eld et al., 2010), biogeochemical conditions in the Northet al., 2ocean temperature (Elder eld et al., 2010), biogeochemical conditions in the Northet al., 2008).

The long - wave radiation estimated for surface temperatures is pretty clear that forcing is occuring near the equator and since the ocean in this region is acccumulating heat that will eventually re-emerge the deeper it can be sequestered the better.

A lot of reseach energy is being devoted to the study of Methane Clathrates — a huge source of greenhouse gases which could be released from the ocean if the thermocline (the buoyant stable layer of warm water which overlies the near - freezing deep ocean) dropped in depth considerably (due to GHG warming), or especially if the deep ocean waters were warmed by very, very extreme changes from the current climate, such that deep water temperatures no longer hovered within 4C of freezing, but warmed to something like 18C.

In my briefings to the Association of Small Island States in Bali, the 41 Island Nations of the Caribbean, Pacific, and Indian Ocean (and later circulated to all member states), I pointed out that IPCC had seriously and systematically UNDERESTIMATED the extent of climate change, showing that the sensitivity of temperature and sea level to CO2 clearly shown by the past climate record in coral reefs, ice cores, and deep sea sediments is orders of magnitude higher than IPCC's modelIn my briefings to the Association of Small Island States in Bali, the 41 Island Nations of the Caribbean, Pacific, and Indian Ocean (and later circulated to all member states), I pointed out that IPCC had seriously and systematically UNDERESTIMATED the extent of climate change, showing that the sensitivity of temperature and sea level to CO2 clearly shown by the past climate record in coral reefs, ice cores, and deep sea sediments is orders of magnitude higher than IPCC's modelin Bali, the 41 Island Nations of the Caribbean, Pacific, and Indian Ocean (and later circulated to all member states), I pointed out that IPCC had seriously and systematically UNDERESTIMATED the extent of climate change, showing that the sensitivity of temperature and sea level to CO2 clearly shown by the past climate record in coral reefs, ice cores, and deep sea sediments is orders of magnitude higher than IPCC's modelin coral reefs, ice cores, and deep sea sediments is orders of magnitude higher than IPCC's models.

Terrell Johnson, reporting on a recent NASA publication concluding that deep ocean temperatures have not increased since 2005 (http://www.weather.com/science/environment/news/deep-ocean-hasnt-warmed-nasa-20141007): «While the report's authors say the findings do not question the overall science of climate change, it is the latest in a series of findings that show global warming to have slowed considerably during the 21st century, despite continued rapid growth in human - produced greenhouse gas emissions during the same time.»

If somehow and I can't possibly imagine how, there was a huge increase in circulation between the surface and the deeper layers of the ocean, that would be disastrous for global temperatures but not upwards but downwards!

The structure of the ocean circulation basically anchors this region to something like pre-industrial temperatures, at least until deep bottom water originating in the North Atlantic also warms.

I had a fascinating and fruitful chat with Yair Rosenthal of Rutgers and Braddock Linsley of Columbia University — two authors of an important new Science paper extracting 10,000 years of temperature changes in fairly deep Pacific Ocean waters from fossil plankton buried in the seabed off Indonesia.

@ 48 If your speculation is correct, I assume that another consequence would be that, if / when concentrations of greenhouse gases start to drop, corresponding reductions in surface ocean / land temperatures would take place at a much slower rate than would otherwise be the case: the surplus heat stored in the deep ocean will gradually make its way to the ocean surface, and continue to warm the atmosphere for decades, if not longer.

There is good evidence that the answer to both these question is no: (The insensitivy of the results to methodology of selecting rural stations, the Parker et al windy days study, and the fact that data from satellite skin surface measurements, from sea surface temperatures, deep ocean temps as we as tropospheric temps are all in good agreement).

Re Todd at # 1 and CM at # 5: Am I right in understanding that the key point is that it's quite possible for global surface temperatures to decrease even as the globe warms if more than the excess inflow of heat goes into the deep oceans?

Re # 9 and space loss vs. deep ocean loss: It does seem that if radiation to space was the loss, you'd see a correlated increase in the temperature at the top of the troposphere, which is some -73 C.

It is because the deep ocean adjusts so slowly, that the long term remaining imbalance will be small and barely noticeable in the surface temperature data.

This is a result of a weaker wind - driven ocean circulation, when a large decrease in heat transported to the deep ocean allows the surface ocean to warm quickly, and this in turn raises global surface temperatures.

SO just HOW can we justify that that the outflow in the computer MUST be less than inflow for the 250 years of the computer run, when clearly the daily temperature cycle will reestablish the equilibrium (at least for the atmosphere & ground — not sure about deep ocean equilibrium, BUT I also know that there is MUCH MUCH MORE energy stored in the Land (eg solid iron core of earth) than in the ocean & the GCMs do NOT address this either).