Sentences with phrase «regional temperature changes in»

Forcing changes of similar magnitude, due to water vapour variations, are measurable as regional temperature changes in Europe, see Philipona, but aerosol changes are not...

What really concerns me is that I've read a lot about climate models not being able to replicate the magnitude of abrupt regional temperature changes in the past, and Raypierre has said here that he fears that past climate records point towards some yet unknown positive feedback which might amplify warming at the northern latitudes.

Forcing changes of similar magnitude, due to water vapour variations, are measurable as regional temperature changes in Europe, see Philipona, but aerosol changes are not...

Not exact matches

This is a strong indication that agriculture, and not changing sea surface temperature, caused the regional changes in climate during the last third of the 20th century, the researchers say.

Even if global warming is limited to these levels, changes in regional temperatures (and therefore climate change impacts) can vary significantly from the global average.

Huntingford, C., Jones, P. D., Livina, V. N., Lenton, T. M. & Cox, P. M. No increase in global temperature variability despite changing regional patterns.

New research published this week in the Journal of Climate reveals that one key measurement — large - scale upper - ocean temperature changes caused by natural cycles of the ocean — is a good indicator of regional coastal sea level changes on these decadal timescales.

Efforts to reform the single - sector approach to marine spatial management should incorporate expected climate - induced changes in temperature, oxygenation, pH, and POC flux to the seabed in the development of regional and international management scenarios.

Additionally, there were also regional differences in the spatial patterns of change trend in the ARNC temperature at a given time.

Production may be directly affected by changes in crop photosynthesis and water use due to rising CO2 and changes in regional temperature patterns.

Resulting changes in the atmospheric temperature structure, including from surface dimming, in turn affect regional circulation and precipitation patterns.

Human induced trend has two components, namely (a) greenhouse effect [this includes global and local / regional component] and (b) non-greenhouse effect [local / regional component]-- according to IPCC (a) is more than half of global average temperature anomaly wherein it also includes component of volcanic activities, etc that comes under greenhouse effect; and (b) contribution is less than half — ecological changes component but this is biased positive side by urban - heat - island effect component as the met network are concentrated in urban areas and rural - cold - island effect is biased negative side as the met stations are sparsely distributed though rural area is more than double to urban area.

However, there are various other plausible explanations, for example: — changes in US temperatures since the 1930s / 1940s show regional variation within the overall warming trend at those latitudes; — actually I'm struggling to think of any others, apart from inaccuracies in the US temperature record but these have tended to point the other way.

Using models to distinguish between the forcing histories is thus likely to require a tighter focus on regional changes, or in climate patterns, more than the just the mean temperature.

In fact, regional temperatures changes (e.g. in Europe) appear to have been significantly larger, and quite different, from those for the Northern Hemisphere on the wholIn fact, regional temperatures changes (e.g. in Europe) appear to have been significantly larger, and quite different, from those for the Northern Hemisphere on the wholin Europe) appear to have been significantly larger, and quite different, from those for the Northern Hemisphere on the whole.

Neglecting the significance of the large regional differences in past temperature changes is another classic pitfall in the arguments put forward by many climate change contrarians (see Myth # 2 here).

The attribution of the term at regional scales is complicated by significant regional variations in temperature changes due to the the influence of modes of climate variability such as the North Atlantic Oscillation and the El Nino / Southern Oscillation.

At the hemispheric - mean scale, the «Little Ice Age» is only a moderate cooling because larger offsetting regional patterns of temperature change (both warm and cold) tend to cancel in a hemispheric or global mean.

These facts suggest that the temperature trend most likely occurred through natural changes in regional climate dynamics, the new study concludes.

A comprehensive new analysis of temperature changes over the continents through 2,000 years has found that a long slide in temperatures in most regions preceded the unusual global warming of recent decades, but with a lot of regional variability and other fascinating details.

Subsequent work indicated that the polar ozone hole (starting in the early 80s) was having an effect on polar winds and temperature patterns (Thompson and Solomon, 2002; Shindell and Schmidt, 2004), showing clearly that regional climate changes can sometimes be decoupled from the global picture.

Then some climate modelers even have the audacity to publish regional «projections» saying that the Colorado River will dry up in 50 - 100 years, or the rainfall and temperature somewhere else will change this way or that.

Global climate change risks are high to very high with global mean temperature increase of 4 °C or more above preindustrial levels in all reasons for concern (Assessment Box SPM.1), and include severe and widespread impacts on unique and threatened systems, substantial species extinction, large risks to global and regional food security, and the combination of high temperature and humidity compromising normal human activities, including growing food or working outdoors in some areas for parts of the year (high confidence).

The climate change in this period is generally believed to be associated with precessional changes in the distribution of solar radiation, which primarily affect land - sea temperature contrast, and give only a regional warming, plus an enhancement of certain monsoonal circulations.

[Response: Despite the evidence for rapid regional climate changes during certain past transitional periods (e.g. the Younger Dryas), there is no evidence that global mean temperature changes of the amplitude seen in the past century have occured on centennial or shorter timescales in the past.

-- Projected precipitation and temperature changes imply changes in floods, although overall there is low confidence at the global scale regarding climate - driven changes in magnitude or frequency of river - related flooding, due to limited evidence and because the causes of regional changes are complex.

The lapse rate within the troposphere is largely determined by convection, which redistributes any changes in radiative heating or cooling within the troposphere + surface so that all levels tend to shift temperature similarly (with some regional / latitudinal, diurnal, and seasonal exceptions, and some exceptions for various transient weather events).

Re 9 wili — I know of a paper suggesting, as I recall, that enhanced «backradiation» (downward radiation reaching the surface emitted by the air / clouds) contributed more to Arctic amplification specifically in the cold part of the year (just to be clear, backradiation should generally increase with any warming (aside from greenhouse feedbacks) and more so with a warming due to an increase in the greenhouse effect (including feedbacks like water vapor and, if positive, clouds, though regional changes in water vapor and clouds can go against the global trend); otherwise it was always my understanding that the albedo feedback was key (while sea ice decreases so far have been more a summer phenomenon (when it would be warmer to begin with), the heat capacity of the sea prevents much temperature response, but there is a greater build up of heat from the albedo feedback, and this is released in the cold part of the year when ice forms later or would have formed or would have been thicker; the seasonal effect of reduced winter snow cover decreasing at those latitudes which still recieve sunlight in the winter would not be so delayed).

The water vapor feedback (a generally positive feedback)-- there is an roughly exponential increase in saturation water vapor pressure with increasing temperature, and the relative humidity (at a given vertical level) overall tends not to change a lot globally, though there will be different regional trends associated with shifting precipitation patterns.

Northeast Pacific coastal warming since 1900 is often ascribed to anthropogenic greenhouse forcing, whereas multidecadal temperature changes are widely interpreted in the framework of the Pacific Decadal Oscillation (PDO), which responds to regional atmospheric dynamics.

There will be Regionally / locally and temporal variations; increased temperature and backradiation tend to reduce the diurnal temperature cycle on land, though regional variations in cloud feedbacks and water vapor could cause some regions to have the opposite effect; changes in surface moisture and humidity also changes the amount of convective cooling that can occur for the same temperature distribution.

That is, changes to the system are more clearly discerned in the global mean temperature than at a regional level, mainly because the noisy «weather» component increases as you go to smaller scales.

Also, the term «global pattern of warming» implies regional temperature change, which pushes the climate system response discussion to a much higher level of complexity than when simply talking about changes in global - mean climate.

As I've written before, while 20 years of intensifying inquiry has greatly reinforced confidence that humans are influencing climate in ways that could profoundly disrupt human and natural affairs, it has not substantially clarified climate outcomes that matter most: how fast and far temperatures and seas will rise in the next 100 years, how hurricanes will respond to warming, how regional conditions will change.

While the anomalous nature of recent trends in global average temperature is often highlighted in discussions of climate change, changes at regional scales have potentially greater societal significance.

An assessment of the relationship between significant observed changes from Section 1.3 and significant regional temperature changes is presented in Section 1.4.2.3.

Joint attribution involves attribution of significant changes in a natural or managed system to regional temperature changes, and attribution of a significant fraction of the regional temperature change to human activities.

High - frequency associations (not shown here) remain strong throughout the whole record, but average density levels have continuously fallen while temperatures in recent decades have risen... As yet, the reason is not known, but analyses of time - dependent regional comparisons suggest that it is associated with a tendency towards loss of «spring» growth response (Briffa et al., 1 999b) and, at least for subarctic Siberia, it may be connected with changes in the timing of spring snowmelt (Vaganov et al., 1999).

A new study released Friday in the journal Science Advances helps clear up a bit of the mystery, by showing that man - made climate change is responsible for most of the change seen in ocean surface temperatures near the equator across Asia, which in turn affect regional rainfall patterns including the Indian monsoon.

Accordingly, there is less certainty about the changes in frequency and intensity of tropical cyclones on a regional basis than for temperature and precipitation changes.

Even though the average temperature stayed the same, there were still regional changes, with cooling in the tropics and warming at both poles (particularly in their respective winters):

There were regional changes in precipitation, too, but they didn't all cancel out like with temperature.

A central topic will be teleconnections in the climate system, i.e. how a change in climate in one part of the globe (e.g. temperatures in the Atlantic or shrinking sea ice cover in the Arctic) can influence climate on other parts of the globe (e.g. Eurasian winter temperatures), and how we can use this information to improve regional climate prediction and therefore regional climate service.

The Great Lakes, North America's largest freshwater feature, have recently recorded higher water temperatures and less ice cover as a result of changes in regional climate (see also Ch.

So while CET can be expected to track global temperature (Lamb's thesis), this is somewhat masked by this additional regional climate change, as reflected in the transition from regularity to chaos in its Hale curve around mid-18th century (one reason for preferring HadCRUT3 over CET in identifying multidecadal components of climate change for recent centuries).

We must look at arriving sunlight and departing light and heat, not merely regional shifts on earth, to account for changes in the temperature balance.

Models disagree on snow water equivalent changes on a regional basis, especially in transitional regions where competing effects occur due to greater snowfall and warming temperatures.»

As such, wouldn't changes in wind direction likely be a regional influence and not a global influence — kind of moving around which areas are «stuck» from one part of the globe to another without changing the overall temperature balance of the globe?

This is a strong indication that agriculture, and not changing sea surface temperature, caused the regional changes in climate during the last third of the 20th century, the researchers say.

Morice, C. P., J. J. Kennedy, N. A. Rayner, and P. D. Jones, 2012: Quantifying uncertainties in global and regional temperature change using an ensemble of observational estimates: The HadCRUT4 dataset.