Sentences with phrase «in global humidity»

A slight change of ocean temperature (after a delay caused by the high specific heat of water, the annual mixing of thermocline waters with deeper waters in storms) ensures that rising CO2 reduces infrared absorbing H2O vapour while slightly increasing cloud cover (thus Earth's albedo), as evidenced by the fact that the NOAA data from 1948 - 2008 shows a fall in global humidity (not the positive feedback rise presumed by NASA's models!)

Not exact matches

To get around the problem, Fasullo and Trenberth decided to examine how well 16 global climate models reproduce recent satellite observations of relative humidity in the tropics and subtropics, a quantity that is directly related to cloud formation.

Now, however, increasing humidity in Chile, possibly caused by global climate change, has started to turn some mummies into black ooze (pictured).

He said: «Tropical glaciers are the canaries in the coalmine for our global climate system, as they integrate and respond to most of the key climatological variables — temperature, precipitation, cloudiness, humidity and radiation.»

The Nature article comes as climate scientists published what they said today was the «best ever» collection of evidence for global warming, including temperature over land, at sea and in the higher atmosphere, along with records of humidity, sea - level rise, and melting ice.

Total column water vapour has increased over the global oceans by 1.2 ± 0.3 % per decade from 1988 to 2004, consistent in pattern and amount with changes in SST and a fairly constant relative humidity.

In the central United States, for example, observational data indicate that rainfall increased, surface air temperature decreased, and surface humidity increased during the summer over the course of the 20th century concurrently with increases in both agricultural production and global GHG emissionIn the central United States, for example, observational data indicate that rainfall increased, surface air temperature decreased, and surface humidity increased during the summer over the course of the 20th century concurrently with increases in both agricultural production and global GHG emissionin both agricultural production and global GHG emissions.

-LSB-...] Moreover, this study highlights that modern glacier retreat on Kilimanjaro is much more complex than simply attributable to «global warming only», a finding that conforms with the general character of glacier retreat in the global tropics [Kaser, 1999]: a process driven by a complex combination of changes in several different climatic parameters [e.g., Kruss, 1983; Kruss and Hastenrath, 1987; Hastenrath and Kruss, 1992; Kaser and Georges, 1997; Wagnon et al., 2001; Kaser and Osmaston, 2002; Francou et al., 2003; Mölg et al., 2003], with humidity - related variables dominating this combination.

Yes, global warming increases absolute humidity so more extreme weather incidents are expected — as in more downpours and fewer drizzles.

They think that it's a change in humidity or cloudiness, but point out that even that could be part of the remote impact of a global climate change signal.

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 confidGlobal 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 confidglobal 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 confidglobal 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).

We expect, through the Clausius - Clapeyron equation, that the specific humidity will increase roughly 20 % in response to 3 degrees of warming provided the temperature and humidity vary in such a way as to keep the global relative humidity roughly constant.

Temperatures in the tropics (especially daytime temperatures) are much higher than the global «average» so the absolute humidity must be higher as well — conversely, temperatures in the polar regions are much colder than global averages.

Global rainfall increases typically cause an overall reduction of specific humidity (q) and relative humidity (RH) in the upper tropospheric levels of the broader scale surrounding convection subsidence regions.

However, the available data now show evidence for global increases in upper - tropospheric specific humidity over the past two decades (Figure TS.8).

ii) The oceans appear to vary in the rate at which they release solar energy back to the air which affects atmospheric composition via humidity, clouds and global albedo.

Having a high humidity allows ocean to get highest surface temperature, but less humidity would allow ocean store energy in form of water vapor [which allow more energy to stored in terms energy of earth's global budget].

This snowpack accumulation near the poles, which gets its water via the Arctic and Antarctic oceans, that in turn rob it from equatorial latitudes of our oceans, also results in a reduction in the earth's spin axis moment of inertia and causes the spin rate to increase as evidenced in the recent history of the rate at which Leap Seconds are added to our calendar (see Wysmuller's Toucan Equation for more on this evidence that during this warm time with much greater polar humidity, earlier seasonal, later seasonal and heavier snows are beginning to move water vapor from the oceans to the poles to re-build the polar ice caps and lead us into a global cooling, while man - made CO2 continues to increase http://www.colderside.com/faq.htm).

E. 7.3 Describe how global patterns such as the jet stream and ocean currents influence local weather in measureable terms such as temperature, air pressure, wind direction and speed, and humidity and precipitation.

Here is a graph of global average annual relative humidity at various elevations in the atmosphere expressed in milli - bars (mb) from 300 mb to 700 mb for the period 1948 to 2008.

Could you contrast and compare the recent global trends in absolute humidity, precipitation and cloudiness in order to support or reject your implied position that there is no water vapor feedback.

Air above water is very rarely near saturated and then not for long so in global terms we can ignore the issue of humidity.

The first paper cited notes (caveating that observational uncertainties are considerable) that models do not match observed changes in subtropical relative humidity or in global precipitation.

Effects of sub-grid scale variations in relative humidity and cloud on a global scale have not been rigorously investigated.

Global humidity data at very high altitudes in the stratosphere and above.

For Europe specifically, it is estimated that the CO2 flux from land vegetation contributes to reduce the global net flux associated with atmospheric growth of CO2, but the relative magnitude of this sink has been decreasing since the 1990s (from capturing 40 % of the global growth previously, to about 20 % now), likely further to changes in the atmospheric transport of heat and humidity over Europe.

And these results, as they continue, «suggest that an increased temperature will result n a shortening of the life span of mosquitoes (due to decreasing humidity) and decrease in the capacity of larva production and maturation (due to decreasing rainfall),» so that ultimately «the increase in temperature will not result in an increased malaria transmission in Burundi,»...» [Hermenegilde Nkurunziza and Juergen Pilz 2011: International Journal of Global Warming]

Two of the studies are from the European Commission's joint research centre and the first of these confirms separate research in June and again this month, that murderous levels of heat and humidity could affect many millions if there are no steps to drastically reduce the greenhouse gas emissions that drive global warming and climate change.

«Working with data pertaining to 7450 cardiovascular - related deaths that occurred within Budapest, Hungary, between 1995 and 2004 — where the deceased were «medico - legally autopsied» — Toro et al. looked for potential relationships between daily maximum, minimum and mean temperature, air humidity, air pressure, wind speed, global radiation and daily numbers of the heart - related deaths... scientists report and restate their primary finding numerous times throughout their paper, writing that (1) «both the maximum and the minimum daily temperatures tend to be lower when more death cases occur in a day,» (2) «on the days with four or more death cases, the daily maximum and minimum temperatures tend to be lower than on days without any cardiovascular death events,» (3) «the largest frequency of cardiovascular death cases was detected in cold and cooling weather conditions,» (4) «we found a significant negative relationship between temperature and cardiovascular mortality,» (5) «the analysis of 6 - hour change of air pressure suggests that more acute or chronic vascular death cases occur during increasing air pressure conditions (implying cold weather fronts),» (6) «we found a high frequency of cardiovascular death in cold weather,» (7) «a significant negative relationship was detected between daily maximum [and] minimum temperature [s] and the number of sudden cardiovascular death cases,» and (8) «a significant negative correlation was detected between daily mean temperature and cardiovascular mortality.»

Given there is much more water vapour in the lower levels of the atmosphere, the study really found that there was a decline in overall global relative humidity when global warming theory suggests it should stay more - or-less stable.

There are supposed to be subtle changes in relative humidity in different layers and latitudes depending on temperature changes but global warming theory suggests relative humidity should stay more - or-less stable.

Given there is much more water vapour in the lower levels of the atmosphere, the study really found that there was a decline in overall global relative humidity.

And similar patterns in the global trend in variability exist for both temperature and specific humidity.

At the high - end scenario of global warming, in which global average temperatures increase to 8.46 degrees Fahrenheit above 1986 - 2005 average levels by 2100, the report found that «the combination of high temperature and humidity in some areas for parts of the year is projected to compromise normal human activities, including growing food or working outdoors.»

He said: «Tropical glaciers are the canaries in the coalmine for our global climate system, as they integrate and respond to most of the key climatological variables — temperature, precipitation, cloudiness, humidity and radiation.»

«To put it in a particularly Australian way, we don't plan for a bushfire season based on what is happening to global average temperatures, we look at the temperature and humidity in our area instead,» said Professor Jakob.

Moreover, rising global average temperatures lead to longer pollen seasons in many places and — when combined with stronger rainfall events, flooding, and higher humidity — create the perfect environment for mold to flourish.

One study, published in today's edition of the journal Nature, found that the overall increase in worldwide surface humidity from 1973 - 99 was 2.2 %, which is due «primarily to human - caused global warming,» according to study co-author Nathan Gillett of the University of East Anglia, in Norwich, U.K.

You then asked «Or perhaps you can point me to the dataset that shows, for several individual locations for the same period as the temperature set the: * CO2 concentrations (OK, we could use Mauna Loa for that) * Aerosols (sorry, can't use global records for that, there can be huge differences on a local scale) * Absolute humidity * TSI with correction for local albedo, including cloud albedo, and the place on earth» Well actually, I can and have for the USA in terms of CO2, humidity (RH but AH also if you insist), and albedo, not to mention actual solar surface radiation, and various other variables (eg windspeed), as I have previously reported here for quite a few locations, eg Pt Barrow.