Sentences with phrase «average air temperature as»

For a long time now climatologists have been tracking the global average air temperature as a measure of planetary climate variability and trends, even though this metric reflects just a tiny fraction of Earth's net energy or heat content.

Not exact matches

But climate models predict reductions in dissolved oxygen in all oceans as average global air and sea temperatures rise, and this may be the main driver of what is happening there, she says.
On average, a penguin's body surface temperature dropped as low as -23 °C, about 3 ° below air temperature.
For example, westerly wind and air temperature can cause a 7 - ounce change in average chick weights, as compared to 3.5 - ounce change caused by wind speed and precipitation.
The Fourth Assessment Report finds that «Warming of the climate system is unequivocal, as is now evident from observations of increases in global average air and ocean temperatures, widespread melting of snow and ice, and rising mean sea level.
A b eautiful and expansive open - air plaza, lawn and garden offer a respite from convention business as well as an outdoor meeting venue under the stars, taking advantage of Riverside's average temperature of 76 degrees (confirm our average temperature).
As far as this historic period is concerned, the reconstruction of past temperatures based on deep boreholes in deep permafrost is one of the best past temperature proxies we have (for the global regions with permafrost — polar regions and mountainous regions)-- as a signal of average temperatures it's even more accurate than historic direct measurements of the air temperature, since the earth's upper crust acts as a near perfect conservator of past temperatures — given that no water circulation takes place, which is precisely the case in permafrost where by definition the water is frozeAs far as this historic period is concerned, the reconstruction of past temperatures based on deep boreholes in deep permafrost is one of the best past temperature proxies we have (for the global regions with permafrost — polar regions and mountainous regions)-- as a signal of average temperatures it's even more accurate than historic direct measurements of the air temperature, since the earth's upper crust acts as a near perfect conservator of past temperatures — given that no water circulation takes place, which is precisely the case in permafrost where by definition the water is frozeas this historic period is concerned, the reconstruction of past temperatures based on deep boreholes in deep permafrost is one of the best past temperature proxies we have (for the global regions with permafrost — polar regions and mountainous regions)-- as a signal of average temperatures it's even more accurate than historic direct measurements of the air temperature, since the earth's upper crust acts as a near perfect conservator of past temperatures — given that no water circulation takes place, which is precisely the case in permafrost where by definition the water is frozeas a signal of average temperatures it's even more accurate than historic direct measurements of the air temperature, since the earth's upper crust acts as a near perfect conservator of past temperatures — given that no water circulation takes place, which is precisely the case in permafrost where by definition the water is frozeas a near perfect conservator of past temperatures — given that no water circulation takes place, which is precisely the case in permafrost where by definition the water is frozen.
I would suggest comparing peak to peak average temperature captures during weighted El - Nino events (during the time they occur, if they can be compared equally this would be a telling graph), instead of considering year to year records as a means of reducing ENSO effects on the temperature record, ENSO being largely a heat exchange between air and sea causing great changes in cloud distribution world wide.
However their predictions are about much more than just the average near - surface air temperature, they are mainly focused on how heat mixes into the ocean and how that affects the rise in surface temperature as CO2 is doubled over 100 years.
I think it's a mistake to refer to changes in global average surface air temperatures as if they were definitive measures of the change to the climate system.
Warming of the climate system is unequivocal, as is now evident from observations of increases in global average air and ocean temperatures, widespread melting of snow and ice, and rising global average sea level.
At some heights average air temperatures have been dropping as much as a full 10 degrees Celsius, that's 18 degrees Farenheit, every decade.
Partail statement: «The average global air temperature changes as concentrations of CO2 in the atmosphere vary.»
As LST closely tracks air temperatures over the instrumental period, we can also infer that air temperatures in this region of East Africa varied in concert with the global average and thus were controlled primarily by the major forcings influencing temperatures over this timescale, both natural (solar radiation, volcanism) and anthropogenic (greenhouse - gas emissions; refs 19, 20).
Springtime cold air outbreaks (at least two consecutive days during which the daily average surface air temperature is below 95 % of the simulated average wintertime surface air temperature) are projected to continue to occur throughout this century.19 As a result, increased productivity of some crops due to higher temperatures, longer growing seasons, and elevated CO2 concentrations could be offset by increased freeze damage.20 Heat waves during pollination of field crops such as corn and soybean also reduce yields (Figure 18.3).4 Wetter springs may reduce crop yields and profits, 21 especially if growers are forced to switch to late - planted, shorter - season varietieAs a result, increased productivity of some crops due to higher temperatures, longer growing seasons, and elevated CO2 concentrations could be offset by increased freeze damage.20 Heat waves during pollination of field crops such as corn and soybean also reduce yields (Figure 18.3).4 Wetter springs may reduce crop yields and profits, 21 especially if growers are forced to switch to late - planted, shorter - season varietieas corn and soybean also reduce yields (Figure 18.3).4 Wetter springs may reduce crop yields and profits, 21 especially if growers are forced to switch to late - planted, shorter - season varieties.
As the Earth warms and sea level rises, it is inundated with seawater, which is 12 - 15 degrees warmer than the average air temperature.
What you should say is that GLOBAL AVERAGE index of temperatures is increasing, or average low troposphere temperature is increasing (a 5 km layer of air, as per satellite interpretation of «brightness temperatures&rAVERAGE index of temperatures is increasing, or average low troposphere temperature is increasing (a 5 km layer of air, as per satellite interpretation of «brightness temperatures&raverage low troposphere temperature is increasing (a 5 km layer of air, as per satellite interpretation of «brightness temperatures»).
Well now, that is something you should take up with Webster, I just know that more efficient mixing increases the average temperature of the oceans which is increasing the total heat in the ocean system which has about 1000 times the heat capacity of the air that that heat would be lost to if the mixing didn't take place as efficiently.
Another problem, as has been mentioned before, is that about 98 % of anthropogenic CO2 should be absorbed by the oceans in order to preserve the 1:50 partitioning ratio of CO2 between air and water at earth's average surface temperature that is governed by Henry's law.
It's clear that weather stations on land show average air temperatures are rising, and as a result, the frequency and severity of droughts and heat waves are increasing.
Average air temperature over the land and sea surface was 0.56 degrees Celsius above the long - term average, tied with 2010 as the joint warmest year on Average air temperature over the land and sea surface was 0.56 degrees Celsius above the long - term average, tied with 2010 as the joint warmest year on average, tied with 2010 as the joint warmest year on record.
The Fourth Assessment Report finds that «Warming of the climate system is unequivocal, as is now evident from observations of increases in global average air and ocean temperatures, widespread melting of snow and ice, and rising mean sea level.
One study estimates that there are likely to be places on Earth where unprotected humans without cooling mechanisms, such as air conditioning, would die in less than six hours if global average surface temperature rises by about 12.6 ° F (7 ° C).16 With warming of 19.8 - 21.6 ° F (11 - 12 ° C), this same study projects that regions where approximately half of the world's people now live could become intolerable.7
This latitude by height cross section shows that for the Arctic as a whole, air temperatures were above average not just at and near the surface but through a deep layer of the atmosphere.
He asserts that temperature is related to kinetic energy only, and that kinetic energy on average «decreases» per molecule as one ascends the air column.
By contrast, air temperatures over the Antarctic region for the same period were above average in some areas, such as the Antarctic Peninsula and near the pole, but below average in others.
Air temperatures at the 925 hPa level (approximately 2,500 feet above sea level) were more than 3 degrees Celsius (5 degrees Fahrenheit) above the 1981 to 2010 average over the central Arctic Ocean and northern Barents Sea, and as much as 5 degrees Celsius (9 degrees Fahrenheit) above average over the Chukchi Sea.
Generally, for climate purpose, the Earth's temperature is regarded as the average temperature of the air at any given moment and much scientific effort has been put into ascertaining what it is and how the real world arrives at that temperature for the air.
Whatever the average regional temperature, it's hotter in the cities, because concentrations of traffic, business, heating, cooking, lighting and air conditioning generate what has become known as the urban heat island effect: what makes this worse is that the asphalt, tarmacadam, stone, brick, glass and tile of which cities are made absorb radiation but prevent ground evaporation as a natural cooling device.
The 2007 IPCC report warned: «Warming of the climate system is unequivocal as is now evident from increases in global average air and ocean temperatures
What the report says about climate change and the Arctic: Over the past 50 years, near - surface air temperatures across Alaska and the Arctic have increased at a rate more than twice as fast as the global average.
It is your icons in the «climate science consensus» community that pushed supposedly global surface air temperatures (occasionally combined with supposedly global sea surface temps) as «Global Average Temperature
Over the past 60 years, Alaska has warmed more than twice as rapidly as the rest of the United States, with state - wide average annual air temperature increasing by 3 °F and average winter temperature by 6 °F, with substantial year - to - year and regional variability.1 Most of the warming occurred around 1976 during a shift in a long - lived climate pattern (the Pacific Decadal Oscillation [PDO]-RRB- from a cooler pattern to a warmer one.
Unfortunately using global average surface air temperatures as a measure of total warming ignores the fact that most of the heat (more than 93 %) goes into our oceans, which continue to warm without any sign of a pause, as you can see below.
the composite or generally prevailing WEATHER CONDITIONS of a region, as temperature, air pressure, humidity, precipitation, sunshine, cloudiness, and winds, throughout the year, averaged over a series of years.
JM: The guide at the said link clearly states on page 540 (Part 2, Section 1.3.2.4) that atmospheric air temperature be reported as 1 to 10 minute averages.
6) «That atmospheric pressure, air temperature, air humidity, sea - surface temperature, visibility, among others, be reported as 1 to 10 min averages, which are obtained after linearization of the sensor output;»
Armchair detectives might call it the case of Earth's missing heat: Why have average global surface air temperatures remained essentially steady since 2000, even as greenhouse gases have continued to accumulate in the atmosphere?
In the 21st century, greenhouse gases have continued to accumulate in the atmosphere, just as they did in the 20th century, but global average surface air temperatures have stopped rising in tandem with the gases.
The north pole gets no sunlight until March, but an influx of warm air has pushed temperatures in Siberia up by as much as 35C above historical averages this month.
Arctic near - surface air temperature has risen twice as fast as average global warming over the last 2 decades.
But the «mean» of kriged, adjusted anomalies of a small portion of the surface air (and rarely sea surface) of the globe are referred to in all the scare propaganda as «Global Average Temperature
Solar ponds can be more than 60 C warmer beneath the water as compared at the surface or average air temperature.
However, for changes over time, only anomalies, as departures from a climatology, are used, most commonly based on the area - weighted global average of the sea surface temperature anomaly and land surface air temperature anomaly.
A patent granted to him and Chichilnisky in 2008 described air capture technology as, among other things, «a global thermostat for controlling average temperature of a planet's atmosphere.»
Specifically, the term is defined as how much the average global surface temperature will increase if there is a doubling of greenhouse gases (expressed as carbon dioxide equivalents) in the air, once the planet has had a chance to settle into a new equilibrium after the increase occurs.
tree rings as proxies of surface air temp as proxies of global climate heat content; or temp anomalies as proxies of average temperatures as proxies of global climate heat content), might sound good on paper to those who think they already know the truth.
As Media Matters has noted, the IPCC's 2007 «Synthesis Report» concluded that» [w] arming of the climate system is unequivocal, as is now evident from observations of increases in global average air and ocean temperatures, widespread melting of snow and ice and rising global average sea level» and that» [m] ost of the observed increase in global average temperatures since the mid-20th century is very likely [defined in the report as a» > 90 %» probability] due to the observed increase in anthropogenic [human - caused] GHG [greenhouse gas] concentrations.&raquAs Media Matters has noted, the IPCC's 2007 «Synthesis Report» concluded that» [w] arming of the climate system is unequivocal, as is now evident from observations of increases in global average air and ocean temperatures, widespread melting of snow and ice and rising global average sea level» and that» [m] ost of the observed increase in global average temperatures since the mid-20th century is very likely [defined in the report as a» > 90 %» probability] due to the observed increase in anthropogenic [human - caused] GHG [greenhouse gas] concentrations.&raquas is now evident from observations of increases in global average air and ocean temperatures, widespread melting of snow and ice and rising global average sea level» and that» [m] ost of the observed increase in global average temperatures since the mid-20th century is very likely [defined in the report as a» > 90 %» probability] due to the observed increase in anthropogenic [human - caused] GHG [greenhouse gas] concentrations.&raquas a» > 90 %» probability] due to the observed increase in anthropogenic [human - caused] GHG [greenhouse gas] concentrations.»
Burning fossil fuels not only pollutes our air directly with irritants like particulate matter and soot, but as greenhouse gases accumulate in the atmosphere and average temperatures rise, they also contribute to higher levels of ground - level ozone that can cause acute and long - term respiratory problems.
At all depths down to 1.0 metres the annual average soil temperature for the South Island has essentially the same interannual variation as the annual mean surface (2 m) air temperature for the South Island.
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