Sentences with phrase «much higher latitudes»

During the mid-Cretaceous Period, 120 - 90 million years ago, fossil remains of plants and animals believed to inhabit warm environments, were found at much higher latitudes.

The most recent news making events are two: a challenge to the dates that have been assigned to Neanderthal remains closest to the time of their extinction; and a claim Neanderthals occupied a site in the Siberian far North, at much higher latitudes than previously thought possible.

Not exact matches

Based on how intact a given ecosystem is as well as how much climate change it is expected to endure, they suggest that the high latitudes and high altitudes are likely to see the most change.

When Arthur Hinks, the Royal Geographical Society's cartographer, knew Scott was going south, he held a seminar on navigation, explaining that longitude doesn't matter very much at high latitudes because the effect on your course is minimal.

The evaporation process is much slower in high latitudes because the water is so cold; breaking down spilled oil would take many decades, says Peter Ewins, director of species conservation for World Wildlife Fund - Canada.

However, ENSO also increased the mean and variability of MHW duration in the northeast Pacific Ocean (Supplementary Fig. 1E, F), the variability of intensity off Western Australia and California (Supplementary Fig. 1D) and the variability of frequency over much of the Tropics in all ocean basins as well as the mid - and high - latitudes in the Pacific Ocean (Supplementary Fig. 1B).

My question is, how do expect to be able to maintain a much higher temperature gradient during the LGM than we have today between tropics and high latitudes, since this would tend to increase heat flux.

al, (June, 2005): [During the Paleocene - Eocene thermal maximum (PETM), sea surface temperature (SST) rose by 5 Deg C in the tropics and as much as 9 Deg C at high latitudes, whereas bottom - waters temperatures increased 4 to 5 C.

Hansen does show support for our statements that the recent warming experienced in the Midwest is much more likely to occur in winter than summer due to «the huge difference of temperature between low latitudes and high latitudes in winter.

There just isn't much ice left, and what is left would be extremely difficult to melt, as most of it is located at high latitudes around the poles which are mostly dark 6 months out of the year with way below freezing temperatures.

Much of the uncertainty of models that project future trends of Arctic Ocean acidification is due to inadequate data coverage, particularly in higher latitudes.

However, if the Sun's magnetic field arrives at Earth with a certain orientation aurora can occur at higher latitudes, and the origin of these auroras are much less understood.

Dr. Jack Kruse: We came much later when we went to higher latitudes.

Vigorous convective mixing in the deep tropics also dilutes changes in near - surface CO2 much more than at higher latitudes, so low - altitude sampling contains relatively less information about carbon sources and sinks.

Actually, there is some interesting work being done by Matt Huber of Purdue, following up on some earlier ideas of Emanuel's, suggesting that the role of TCs in transporting heat from equator towards the poles may be more significant than previously thought — it also allows for some interesting, though admittedly somewhat exotic, mechanisms for explaining the «cool tropics paradox» and «equable climate problem» of the early Paleogene and Cretaceous periods, i.e. the problem of how to make the higher latitudes warm without warming the tropics much, something that appears to have happened during some past warm epochs in Earth's history.

This would actually not be true at sufficiently high latitudes in the winter hemisphere, except that some circulation in the upper atmosphere is driven by kinetic energy generated within the troposphere (small amount of energy involved) which, so far as I know, doesn't result in much of a global time average non-radiative energy flux above the tropopause, but it does have important regional effects, and the result is that the top of the stratosphere is warmer than the tropopause at all latitudes in all seasons so far as I know.

-- The Equator - to - pole temperature gradient (Paleocene - Eocene) was much reduced compared to today, therefore the frost - free zone (a limiting factor for the rainforest) existed at higher latitudes than today.

AIUI, the assumption is that most of the first - year ice will melt, and much of it is located around the North Pole this year, so it will melt late (if at all) because of less insolation at high latitudes.

Cold - tolerant, water - loving plants (e.g., birch and spruce) retreated to higher elevations or higher latitudes (as much as 2,500 metres in elevation) within less than 11,000 years.

Water columns are much more strongly stratified in the tropics than in higher latitudes, so it takes a lot less energy to move parcels from deep oceanic layers to the surface in high latitudes — and, not surprisingly, this is where most communication occurs between deep and surface waters.

Dr. Ballard: The Northern Hemisphere is the location of most of the land mass on the Earth and much of it (Canada, Alaska, Siberia) lies at high latitudes.

Keep in mind there's a dearth of insolation at high latitudes so albedo becomes increasingly less important so snow cover over land doesn't mean as much.

The circulation is asymmetric, with conversion to dense waters in restricted regions at high latitudes and the return to the surface involving slow upwelling and diffusive processes over much larger geographic regions.

What life is left in the AGW theory won't be much but CAGW will be deader than a doornail and no one cares about a little AGW especially when it means milder winters in the higher latitudes and little else.

Latitudinally, it has been found that much more solar radiation is absorbed at low latitudes than at high latitudes.

Because of the poor quality of data in general and the obligatory smearing of the nether regions, the much lower average temperature / energy is of the highest northern latitudes and land areas above 30N have their own erratic warming trend.

It seems clear enough from evidence of the geologic past that before the earth started ringing like a bell every 120K years from glacial to interglacial with the former dominating the other 10:1 in persistence, the Eocene optimum 50 million years ago the earth was ice - free, green from pole to pole, it was about 11F warmer overall, with the most dramatic warming in the highest latitudes (right where you'd want it if you could ask for it), and atmspheric CO2 was several times what it is today, which makes sense in light of much warmer global ocean not able to hold as much CO2.

Nighttime winds in temperate and tropical latitudes tend to «decouple» at night, meaning that near - surface winds lose much of their connection with higher - altitude winds.

This is true more generally for much of the subtropics and higher latitudes, but not for the deep tropics.

During the last three such warm (interglacial) periods, temperatures at high latitudes were as much as 5 degrees warmer than today's.

There is a much smaller global area and land area at the higher latitudes than at the lower latitude levels.

Another element left out of the comparison of temperature change by latitude is that there is much less global area in the higher latitudes than in the lower latitudes.

This issue of variability is different from the problem of mean warming which is actually much larger in high latitudes than in the tropics,» Sebastian Bathiany, of the University of Wageningen in the Netherlands, who led the study, told Climate News Network.

(for a 2.5 C increase in GMST, the average increase is less than 1 C in the tropics, and much more than 2.5 C at mid and high latitudes.)

Thus, if impacted, evidence on the impact of climate change in high latitudes should tell us, with a high certainty, much about the consequence and the magnitude of global warming.

From CO2 estimate like this, we don't see that Antarctic glaciation 35 million years ago could have occurred at much more than 800 ppm, and the much higher CO2 levels before that were even favorable for forests at polar latitudes.

Unlike tropical oceans, which are temperature - stratified (i.e. there is a thermocline), the Arctic Ocean is salinity - stratified, although at high latitudes the ocean is much less stable.

In that event, figure 7 suggests a global mean warming approaching 25 °C, with much larger warming at high latitudes (see electronic supplementary material, figure S6).

Clark & Huybers [76] fit a polynomial to proxy temperatures for the Eemian, finding warming as much as +5 °C at high northern latitudes but global warming of +1.7 °C «relative to the present interglacial before industrialization».

In the MRI - CGCM3 and HadGEM2 - ES models I checked the difference is fairly uniform across all latitude bands except NH high latitudes which warm much less in the all - forcing runs.

Did you ever see much forest growth at higher altitudes and latitudes where is is very cold?

ECS of course varies widely spatially and temporally with much higher values for inland continental winters at higher latitudes which is generally where people desire warming to occur.

The AMOC is a flow of warm, salty water that starts in the tropics and runs northward into the high latitudes, where the air is much colder and extracts heat from it.

I wasn't aware how much error there was in cloud cover with far fewer clouds predicted by the physics models than the clouds actually observed, except in the very high latitudes where they predict far more than actually observed.

Hansen does show support for our statements that the recent warming experienced in the Midwest is much more likely to occur in winter than summer due to «the huge difference of temperature between low latitudes and high latitudes in winter.

In high latitudes, trees are dark and absorb a lot of sunlight, especially in the snowy season when they are much darker than the bright ground below.

In the tropics carbon is returned to the atmosphere within a few decades, whereas at high latitudes won't it last much longer and even simply build up in the soil indefinitely?

Much of the warming seen during DJF over high northern latitudes is strongly controlled by each model's simulation of ice and snow cover during the preindustrial period, and how they respond to a warming climate.

(McGuire's 2009 paper notes that such effects will be much more pronounced in areas with significant ice cover, in other words, at higher latitudes.)

Many aspects of a temperature increase would probably be welcome at high northern latitudes that are now too cold over much of the year.