Sentences with phrase «radiation changes»

The sensitivity of climate to solar radiation changes, as defined earlier, is not well known.
Kuhle explains the interglacial periods by the 100,000 - year cycle of radiation changes due to variations of the Earth's orbit.
My contribution had its ups and downs — a low point was definitely when Judge Alsup declared «your chart sucks» in response to a powerpoint slide (right) which showed an artist's impression of the Nimbus 4 satellite at the expense of a graph of how the spectrum of outgoing long wave radiation changed in response to rising greenhouse gases between 1970 and 1997.
Periodic change in 200hPa temperature in response to changing ozone content and changing short wave radiation change ice cloud density and prevalence.
the left panel shows the 3D structure of 2CO2 forcing, and the right is the atmosphere - surface temperature response to the forcing if the long - wave radiation change due to temperature change is the only way to balance the forcing, i.e., with no any feedbacks.
It is commonly thought that hydrologic change is driven by precipitation and radiation changes caused by climate change, and that as the land surface adjusts, rising temperatures and lower precipitation will make the planet drier.
Large - scale TOA radiation changes during the past decade are observed to be within 0.5 Wm ^ 2 per decade based upon comparisons between Clouds and the Earth's Radiant Energy System (CERES) instruments aboard Terra and Aqua and other instruments...
The scale of these cosmic radiation changes does not fit the 250 - year study of the IPCC.
The pulsar's beam of radiation changed slightly due to the gravitational pull of three Earth - sized objects revolving around the host star, PSR B1257 +12.
As the net flux of the solar radiation changes rather slowly with altitude, also the upwards flux of other forms of energy changes slowly going up in the troposphere.
From a leaked draft of the IPCC's Fifth Assessment Report (AR5), the IPCC reports a global temperature rise of 0.89 °C ** from 1901 - 2012 and a total anthropogenic radiation change of 2.29 W / m2.
We find that the major effects of clouds on radiation change are linked to known physical processes that are quite consistently simulated by models.
However, radiation changes at the top of the atmosphere from the 1980s to 1990s, possibly related in part to the El Niño - Southern Oscillation (ENSO) phenomenon, appear to be associated with reductions in tropical upper - level cloud cover, and are linked to changes in the energy budget at the surface and changes in observed ocean heat content.
By applying what has been learned about solar radiation changes from the recent measurements from space, we can infer that this gradual build - up in solar activity over several hundred years may have been accompanied by a parallel increase in the radiation received from the Sun.
It is commonly thought that hydrologic change is driven by precipitation and radiation changes caused by
Stefan Brönnimann of the University of Bern in Switzerland says Haigh's study shows the importance of looking at radiation changes in detail but cautions that the results could be a one - off.
Models get the LW and SW TOA radiation changes, they get the changes in water vapour, they get the impact on the winter NAO.
Because of this, knowing whether the radiation changes CERES measures come from geoengineering or some other effect proves difficult — unless, that is, the engineering effort is so big it drowns out the noise of natural variability.
At this point RF - radiation changes the dipole orientation of a particular molecule into a more weakly trapped state.
Results from climate models driven by estimated radiative forcings for the 20th century (Chapter 9) suggest that there was little change prior to about 1915, and that a substantial fraction of the early 20th - century change was contributed by naturally occurring influences including solar radiation changes, volcanism and natural variability.
I have switched from interests in pure and applied mathematics and phyics to applications of those areas as well — to atmospheric physics and associated atmospheric property changes with composition and radiation changes.
For example, if you look at the Summary from the latest assessment report, you will find a figure showing known climate forcings, and you will find a value given for solar radiation changes.
However, radiation changes at the top of the atmosphere from the 1980s to 1990s (possibly related in part to the ENSO phenomenon) appear to be associated with reductions in tropical upper - level cloud cover, and are consistent with changes in the energy budget and in observed ocean heat content.
In the first instance, the frequency of extreme summers was calculated in climate models where both human - caused (changes in greenhouse gases, aerosols and ozone) and natural (solar radiation changes and volcanic) climate factors were included.
... We develop a method to distinguish noise in the outgoing radiation as well as radiation changes that are forcing SST changes from those radiation changes that constitute feedbacks to changes in SST.
Knutti and Hegerl in the November, 2008 Natural Geoscience paper, The equilibrium sensitivity of the Earth's temperature to radiation changes, says various observations favor a climate sensitivity value of about 3 degrees C, with a likely range of about 2 — 4.5 degrees C per the following graphic whereas the current IPCC uncertainty is range is between 1.5 - 4.5 degrees C.
Although commonly attributed to the Sun (1), the rapid warming of ∼ 1 °C at the end of Maunder Minimum is 10 times greater than our understanding of the solar radiation change (39) can explain but is within the range of a speculative theory (40) if we remove 0.4 °C as due to the AMO.
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