Sentences with phrase «warmer than the air temperature»

The Michigan Tech chamber works differently due to cloud mixing between a hot and cold surface, the same process that forms clouds or fog over a lake on fall days when the water temperature is warmer than the air temperature.
The Michigan Tech chamber creates clouds through cloud mixing between a hot and cold surface — the same process that forms fog over Portage Lake on fall days when the water temperature is warmer than the air temperature.
And water or sand only slightly warmer than air temperature will not heat air much.

Not exact matches

The first week of 2017 will bring warmer - than - seasonal temperatures, followed by a return to colder air by midweek.
The findings were not a total surprise, with future projections showing that even with moderate climate warming, air temperatures over the higher altitudes increase even more than at sea level, and that, on average, fewer winter storm systems will impact the state.
First, sea - surface temperatures in the Gulf of Mexico have been higher than normal in the past couple of months, due to global warming, which means the air that flowed north would have been warmer to start with.
Mori et al. identified two circulation patterns that drove winter temperatures in Eurasia from 1979 to 2013: the Arctic Oscillation (which confines colder air to the polar latitudes) and a pattern dubbed «Warm Arctic and Cold Eurasia» (WACE), which correlated both to sea - ice loss in the Barents - Kara Sea and to particularly cold winters; its impact has more than doubled the probability of severe winters in central Eurasia.
The results — along with a recent Dartmouth - led study that found air temperature also likely influenced the fluctuating size of South America's Quelccaya Ice Cap over the past millennium — support many scientists» suspicions that today's tropical glaciers are rapidly shrinking primarily because of a warming climate rather than declining snowfall or other factors.
«In order to sleep well during the summer when temperatures are warmer than normal, we may need to adapt by using more air conditioning, added fans at night and other technologies to counteract altered future temperatures
Previous work by Hook using satellite data indicated that many lake temperatures were warming faster than air temperature and that the greatest warming was observed at high latitudes, as seen in other climate warming studies.
In the case of Scottsbluff, Vatistas and his team found that the temperature inside the tornado would have dropped from a comfortably warm background temperature of 27o C to a chilly 12o C. And at the tornado's centre, the researchers estimated the air density would have been 20 per cent lower than what's found at high altitudes.
With more than 70 percent of China's energy coming from coal, a power source that contributes heavily to air pollution and global warming, the nation's bad or good energy practices in buildings will be reflected in the color of the sky and the temperature of the Earth.
Despite the strong warming trend of the past 15 years, worldwide temperatures have risen less than models predict, given the build - up of carbon dioxide in the air to 25 per cent above pre-industrial levels.
Scientists measured how much carbon dioxide the artificially warmed plants respired — released into the air via their leaves — and learned that over time, the trees acclimated to warmer temperatures and increased their carbon emissions less than expected.
However, for the globe as a whole, surface air temperatures over land have risen at about double the ocean rate after 1979 (more than 0.27 °C per decade vs. 0.13 °C per decade), with the greatest warming during winter (December to February) and spring (March to May) in the Northern Hemisphere.
The observed fact that temperatures increases slower over the oceans than over land demonstrates that the large heat capacity of the ocean tries to hold back the warming of the air over the ocean and produces a delay at the surface but nevertheless the atmosphere responds quit rapidly to increasing greenhouse gases.
I am very cuious if you found a variance between Upper Air and Surface warming... I calculated total amospheric refraction temperatures, ie from data extracted by analyzing optical effects, some of my results show an impressive yearly warming trend, much stronger than the surface based one.
More than 90 % of global warming heat goes into warming the oceans, while less than 3 % goes into increasing the atmospheric and surface air temperature.
The former is likely to overestimate the true global surface air temperature trend (since the oceans do not warm as fast as the land), while the latter may underestimate the true trend, since the air temperature over the ocean is predicted to rise at a slightly higher rate than the ocean temperature.
As a hurricane, Sandy had a warm core, meaning that temperatures near the storm's center were warmer than the surrounding air, but colder air eventually worked its way into the center of the storm.
If the air temperature is relatively warm then your thyroid will have to work very little and therefore your basal temperature may appear higher than it truly is.
The temperature controls took more than just a glance to make sure I wasn't going to blow hot air, and the seat warmers on low registered nary a BTU according to my back - side thermometer.
To counter Cairns» warm temperatures, all YHA rooms have air - conditioning — a rare treat for a hostel that charges less than the price of avocado toast to stay the night.
So, if you have two identical glass greenhouses with thermally isolated mercury thermometers at equilibrium in the sunlight [One with Air at Press =P, and the 2nd w / CO2 at Press =P], and you close the blinds — you will see the thermometer in the CO2 greenhouse retain its temperature longer — not because of any «global warming» type effect, but simply because Air conducts heat to the walls of the greenhouse better than Air does.
Second, as Gavin pointed out, the land - ocean temperature index tends to underestimate the truth because it's based on sea surface temperature rather than air temperature, while the meteorological - station index temperature tends to overestimate the truth because land warms faster than ocean.
Excerpt: Livermore CA (SPX) Nov 01, 2005 If humans continue to use fossil fuels in a business as usual manner for the next several centuries, the polar ice caps will be depleted, ocean sea levels will rise by seven meters and median air temperatures will soar 14.5 degrees warmer than current day.
So, if you have two identical glass greenhouses with thermally isolated mercury thermometers at equilibrium in the sunlight [One with Air at Press =P, and the 2nd w / CO2 at Press =P], and you close the blinds — you will see the thermometer in the CO2 greenhouse retain its temperature longer — not because of any «global warming» type effect, but simply because Air conducts heat to the walls of the greenhouse better than CO2 does.
Temperature tends to respond so that, depending on optical properties, LW emission will tend to reduce the vertical differential heating by cooling warmer parts more than cooler parts (for the surface and atmosphere); also (not significant within the atmosphere and ocean in general, but significant at the interface betwen the surface and the air, and also significant (in part due to the small heat fluxes involved, viscosity in the crust and somewhat in the mantle (where there are thick boundary layers with superadiabatic lapse rates) and thermal conductivity of the core) in parts of the Earth's interior) temperature changes will cause conduction / diffusion of heat that partly balances the differentiTemperature tends to respond so that, depending on optical properties, LW emission will tend to reduce the vertical differential heating by cooling warmer parts more than cooler parts (for the surface and atmosphere); also (not significant within the atmosphere and ocean in general, but significant at the interface betwen the surface and the air, and also significant (in part due to the small heat fluxes involved, viscosity in the crust and somewhat in the mantle (where there are thick boundary layers with superadiabatic lapse rates) and thermal conductivity of the core) in parts of the Earth's interior) temperature changes will cause conduction / diffusion of heat that partly balances the differentitemperature changes will cause conduction / diffusion of heat that partly balances the differential heating.
The former is likely to overestimate the true global surface air temperature trend (since the oceans do not warm as fast as the land), while the latter may underestimate the true trend, since the air temperature over the ocean is predicted to rise at a slightly higher rate than the ocean temperature.
I am very cuious if you found a variance between Upper Air and Surface warming... I calculated total amospheric refraction temperatures, ie from data extracted by analyzing optical effects, some of my results show an impressive yearly warming trend, much stronger than the surface based one.
Although the climate conditions of the Antarctic continent are colder and drier than in the Peninsula, ice shelf thinning could be caused by a warmer ocean instead of warmer air temperatures.
It also concludes that current northern hemisphere surface air temperatures are significantly higher than during the peak of the Medieval Warm Period (MWP).
In a cascading manner, that is why air temperatures drop the instant a cloud passes in between the earth and the observer and why night - time temperatures are lower than day - time temperatures (except in the unusual climatic conditions whereby wind might carry warmer air during the night - time over a cooler area).
However, despite near normal rates of ice loss during the month, June 2015 was a relatively warm month (Figure 7) with 925 hPa air temperatures up to 2.5 C higher than average near the North Pole and East Siberian Sea, with even warmer air temperatures in the Kara Sea (up to 4.5 C).
water consequently stops freezing [not unless it is warmer than air temp], so the latent energy falls and so the temperature tends to stabilize at that point.
Warm air holds more moisture than cool air, so the heaviest precipitation events could become heavier as air temperatures tick upward.
My understanding is that the Arctic air temperatures are warming faster than the Antarctic.
Dana, I think you are pushing in the right direction with this; heat content is a much more direct measure of the underlying changes to the climate system than average air temperatures and climate science communicators should make heat content their first response to the suggestion that global warming is something that waxes and (allegedly, recently) wanes.
An ocean that is 0.2 C warmer than the air can not possibly raise the air temperature more than 0.2 C.
And air temperatures over exposed land surfaces should warm differently than air temperatures over sea ice, especially when open ocean separates them.
The «warming hole» is a region over the North Atlantic, just south of Greenland, where long - term temperature maps suggest air temperatures have been cooling slightly over the last century, rather than warming like most of the rest of the world.
It is more efficient in the winter to draw heat from the relatively warm ground than from the atmosphere where the air temperature is much colder, and in summer transfer waste heat to the relatively cool ground than to hotter air.
Roger disputed that carbon (as CO2) caused any warming, that honest, unaltered science thought CO2 to be the consequence rather than the driver of temperature increases, that increasing CO2 in the air was sourced by natural phenomena rather than mostly man - made, and that to decrease CO2 to levels required by regulation would start to starve plants, making more folks on the planet to starve accordingly.
More than 90 % of global warming heat goes into warming the oceans, while less than 3 % goes into increasing the atmospheric and surface air temperature.
As the Earth warms and sea level rises, it is inundated with seawater, which is 12 - 15 degrees warmer than the average air temperature.
The only significant atmospheric warming is where the local average air temperature is LOWER than 280K.
Water takes longer to heat up and cool down than does the air or land, so ocean warming is considered to be a better indicator of global warming than measurements of global atmospheric temperatures at the Earth's surface.
On balance the evidence shows that solar and oceanic variations are more likely the cause of recent observations of warming in the air than increasing CO2 in the air but the issue can soon be resolved by observing the global air temperature changes that occur during and after the extended cycle 23 and the probable weak cycle 24.
Note that focusing on surface air temperatures misses more than 90 % of the overall warming of the planet.
From an OSU press release: CORVALLIS, Ore. — An analysis of 35 headwater basins in the United States and Canada found that the impact of warmer air temperatures on streamflow rates was less than expected in many locations, suggesting that some ecosystems may be resilient to certain aspects of climate change.
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