Sentences with phrase «high latitudes -lsb-»

Increases in precipitation at high latitudes in both seasons are very consistent across models.

(1) p228 Recently observed moderate climatic changes have induced forest productivity gains globally (reviewed in Boisvenue and Running, 2006) and possibly enhanced carbon sequestration, especially in tropical forests (Baker et al., 2004; Lewis et al., 2004a, 2004b; Malhi and Phillips, 2004; Phillips et al., 2004), where these are not reduced by water limitations (e.g., Boisvenue and Running, 2006) or offset by deforestation or novel fire regimes (Nepstad et al., 1999, 2004; Alencar et al., 2006) or by hotter and drier summers at mid - and high latitudes (Angert et al., 2005)

As found by Kutzbach et al. (2005) and Bosilovich et al. (2005), atmospheric moisture convergence increases over the equatorial oceans and over high latitudes.

Uncertainties are largest in the tropics and Southern Hemisphere high latitudes where radiosonde coverage is poorest.

Now if «global» surface temperature anomaly correlated most strongly with the poles or the northern mid to high latitudes, I might tend to be more in the CO2 as the dominate forcing camp, but such is not the case.

and there's a lot of basic physics that stem from simple principles (e.g., precipitation is more depleted than the water from which it evaporated, the high latitudes are more depleted than lower latitudes, etc).

Availability of resources such as usable water will also depend on changing rates of precipitation, with decreased availability in many places but possible increases in runoff and groundwater recharge in some regions like the high latitudes and wet tropics.

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.

It has something to do with the amount of energy which is absorbed in the tropics and via evaporation, ocean and air flows gets into the high latitudes.

Moreover, the seasonal, regional, and atmospheric patterns of rising temperatures — greater warming in winters than summers, greater warming at high latitudes than near the equator, and a cooling in the stratosphere while the lower atmosphere is warmer — jibe with what computer models predict should happen with greenhouse heating.

``... a unique century - long SAT dataset focused on the high latitudes of the Northern Hemisphere.

In the 1930s, warming was localised to the high latitudes, consistent with this warming being the result of a natural oscillation (the so - called «Atlantic Multidecadal Oscillation»).

The surface waters of the tropical Atlantic are then transported, via the Gulf Stream, towards the high latitudes where they warm the atmosphere before plunging into the abysses in the convection zones situated in the seas of Norway, Greenland and Labrador.

I have analysed several climate model results and find that under a GW regime we would expect to see more record - breaking events at mid - to high latitudes and actually fewer new records than one would expect for the sub-tropics and where there is large - scale subsidence.

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.

However, there is some similarity: it (or at least the tropopause level forcing) is smallest at high latitudes and greatest in the low latitudes in the absence of at least high - level clouds.

That was due to increased global moisture content, decreased global average cloud cover and decreased sea ice extent at high latitudes.

There's no way out of it: if the greenhouse gas theory were correct and the climate models were really modelling the «real climate» then the high latitudes would be warming the fastest.

Freshening of the ocean can result from numerous factors — the melting of ice, freshwater discharge from rivers, or increased precipitation at high latitudes.

According to the post on the mid-Holocene Optimum, it was likely restricted to the high latitudes of the Northern Hemisphere, and the tropics may well have been colder.

That they could bask in the sun merely confirms what these scientists have long suspected: that Earth's high latitudes are warming dangerously thanks to man - made climate change, with temperatures rising at twice the global average.

The troposphere is not everywhere at all times locally vertically coupled by convection; in particular, at night and at high latitudes, especially in winter, and where there is warm air advection aloft, some layer of air can become stable to localized convection.

However, for Figure 1 they state «Note that the cylindrical projection exaggerates the missing area at high latitudes».

Climate models may therefore lack — or incorrectly parameterize — fundamental processes by which surface temperatures respond to radiative forcings... In contrast with climate model simulations, the zonal surface temperature changes... do not increase rapidly from mid to high latitudes.»

At some places there would be heating of the ocean, in other places, cooling of the ocean (generally, the cooling goes on at high latitudes, warming in the tropics, but there is a lot of variation associated with the shape of the basins, the thermohaline circulation etc.).

Can you direct us to a quantitative discussion of the short - term efffects of tephra aerosols on surface reaction mediated polar O3 equilibri, and the magnitude of the resulting shift in the surface solar flux at high latitudes?

This accounts for some of the heat loss, sea level rise, and decreasing salinity at high latitudes.

«Yes, sea ice seems to behaving as the consensus of the climate models have been projecting — more rapid and larger response in the northern high latitudes than anywhere else, flat to possible increase in [southern hemisphere] sea ice as warming takes hold,» he wrote.

In continental locations, and at high latitudes, it will be more.

The two violins separately follow temperatures in the high latitudes and in the arctic.»

Their are at least three different groups of remote sensing specialists who have examined the MSU data and found problems with an incorrect correction of orbital drift, calibration issues with one of the satellites, sea ice related problems in the high latitudes etc. — gavin]

Thus, small changes of global average air temperature are associated with very large changes in some regions, particularly over land, at mid - to high latitudes, in mountain regions.

This also appears to be true on a global scale... the places ranked the best to live year after year tend to be at high latitudes.

The paragraph in the OP you quote from as well as the one above it in full are saying that the ice age cycles result from the Earth's changing orbit round the sun which creates changes in the «incoming solar radiation (insolation) at high latitudes» (Roe (2006) PDF).

Warmer temperatures at high latitudes are already resulting more frequent Arctic fires, and unprecedented permafrost thaw is leaving large soil carbon pools exposed to smoldering fires for the fist time since ancient times.

Whales also move nutrients thousands of miles from productive feeding areas at high latitudes to calving areas at lower latitudes.

With respect to the radiosonde comparison, it was clearly not sufficient to alert S+C to the error in their retrieval — most probably because the error mostly affected the tropics, while most of the radiosondes are in the mid to high latitudes.

This may partly be due to the coverage of sondes used in that analysis being biased to the high latitudes (since the effect of the error was principally in the tropics), or it may be because of undetected biases in the radiosonde network itself.

This suggests that current models underestimate the heat stored by the ground, particularly for the northern high latitudes.

I would expect, with global warming, with the ice melting earlier, this date would move forward for the high latitudes, and should also cause the date of minimun arctic ice extent to move foward also.

And so far, the sources of methane from high latitudes are small, relative to the big player, which is wetlands in warmer climes.

So in Greenland it got warmer both because of higher CO2, more sunlight at high latitudes during summer, AND because of increased poleward heat flow.

Because high latitudes are thought to be most sensitive to greenhouse gas forcing owing to, for example, ice - albedo feedbacks, we focus on the tropical Pacific Ocean to derive a minimum value for long - term climate sensitivity.

This is actually important for the seasonal cycle at high latitudes.

This results in the stable boundary layer being a common feature, particularly in the winter at middle and high latitudes (e.g. such as the Grand Valley of Colorado).

[Further Response: It is true that the effect is strongest in high latitudes.

Elevated trace GHG concentrations contributed an estimated positive forcing of approximately 1.7 — 2.3 W m - 2 (Table S5) in addition to that of CO2 and produced equilibrium climate system responses resulting in widespread significant warming, especially in the high latitudes (Figs. 3 and 4).

Another seemingly useful clue is that, during a period of methane doldrums (no rise) from 1999 - 2002, the N / S gradient of methane relaxed a bit [Dlugokencky et al., 2003], suggesting that the doldrum was due to a decline in a methane source in the northern high latitudes.

In the future, there will be more precipitation in the high latitudes of the NH and less precipitation in the mid-latitudes.

eg «These studies provide new insights on the sensitivity and response of meridional ocean circulation to melt water inputs to the North Atlantic high latitudes (e.g., Bamberg et al., 2010; Irvali et al., 2012; Morley et al., 2011) and their potential role in amplifying small radiative variations into large a climate response through dynamic changes in ocean - atmosphere interactions (e.g., Morely et al., 2011; Irvali et al., 2012; Morley et al., 2014).