Clouds reflect sunlight, which reduces
solar radiation input to the Earth - atmosphere system.
Not exact matches
Using this
input, a sophisticated computer model developed at NASA's Goddard Space Flight Center, Greenbelt, Maryland, was used to determine which areas receive direct sunlight, how much
solar radiation reaches the surface, and how the conditions change over the course of a year on Ceres.
As the atmospheric opacity is increased (e.g., 2xCO2), the physical location of the TAU = 1 level will rise to a higher altitude, but the outgoing flux will still come from the TAU = 1 level since
radiation doesn't care about the geometric scale), and the TAU = 1 level will still correspond to the same temperature (since the
solar input energy is unchanged).
The energy
inputs to the surface are from absorption of
solar radiation and absorption of downward infrared
radiation.
Of course
solar radiation is practically the entire energy
input to the earth system.
The TOA
solar input is 342 W / m ^ 2, and the TOA
radiation temperature of Earth is 255 K.
(1) forcing of the upper ocean physical condition through the
input of
solar radiation, including light, heat, and indirectly momentum at the ocean surface;
It would have to be something that affected the net heat balance of the earth by affecting incoming
radiation (
solar inputs, aerosols, clouds), the reflectivity of the earth (ice caps, land use changes) or the ability of the surface to cool (greenhouse gases).
i) The mass of the atmosphere — providing resistance to the flow of
radiation through the atmosphere ii) The level of
solar input which determines the height by which molecules can rise from the surface.
The open water areas in the highest latitudes at the date of the minimum in September had only recently formed and there was little
input of
solar radiation so far north.
If the atmosphere of Venus became truly opaque to incoming
solar radiation at some altitude above the surface, the atmosphere below that point would be isothermal assuming no heat
input to the surface from the core of the planet.
The biggest error of all the errors in the physics of the radiative greenhouse conjecture is that they «explain» the surface temperature of 288K using Stefan - Boltzmann calculations based on the direct
solar radiation PLUS about TWICE as much supposed thermal energy
input from the colder atmosphere.
Of general interest for all
solar energy applications is the proposal of a flexible time series - format for
solar radiation specific meteorological
input data, which is drafted as IEC 62862 -1-3 and now available as a TCP Report.
Based on date, time, and location
inputs, it provides sun elevation and azimuth angles, and sunny day
solar direct and diffuse
radiation.
Based on
inputs that include collector area, orientation, and
solar radiation, it provides collector incidence angle,
radiation input to the collector and other outputs.
By the way, water is the only molecule in the upper atmosphere of significant quantity to radiate the balance of IR beyond the minor CO2
radiation plus the IR window
radiation and as such is the primary earth cooling agent (including cloud reflection) and thus is a negative feedback to any actual changes in
solar input energy.
Even at night evaporation continues and the process of evaporation doesn't just supplement convection and convection and
radiation, it dominates completely so even if no convection or conduction or
radiation occurs the upward flow of energy continues from warm lower down (due to past
solar input) to cool at the top.
The only direct real - world
inputs to these models, in a climate change simulation context, are changes in atmospheric chemistry and composition (such as increasing greenhouse gases, or changing volcanic aerosols) and changes in
solar radiation.
The earth is clearly 10 degrees warmer than what a perfect black - body should measure given the
input solar radiation, and the variations in absorptivity along the spectrum are the only explanation due to the isolated nature of the earth in its environment.
Another example is in using biofuels that have a high fossil energy
input in fertilizer or machinery, or planting trees to reduce CO2, but finding out they also absorb
solar radiation more than what they replace.
The effect of the GHE is to move the average location of outgoing
radiation to space up from the surface, and the equilibrium of
solar input and
radiation to space occurs at this average altitude.
When melting sets in, the amount of melt becomes very sensitive to changes in air temperature or absorbed
solar radiation, since any increase in the energy
input can not be offset by a rise in the surface temperature; the whole increment goes directly into driving more melting.
The «back
radiation» component from GHG's and clouds is only about 140 W / m ^ 2 while the peak
solar input exceeds 1000 W / m ^ 2 at the equator and even the mid morning Sun exceeds 300 W / m ^ 2 in most places across the planet.