Sentences with phrase «emission height increases»

Not exact matches

Increasing the GHG content increases the depth or width of this bite, with the depth constrained by the coldest altitude of the body in consideration (where the «emission height» eventually propagates to) and the width increases as the wings of the absorption features become important.

In general, so long as there is some solar heating beneath some level, there must be a net LW + convective heat flux upward at that level to balance it in equilibrium; convection tends to require some nonzero temperature decline with height, and a net upward LW flux requires either that the temperature declines with height on the scale of photon paths (from emission to absorption), or else requires at least a partial «veiw» of space, which can be blocked by increasing optical thickness above that level.

Here is the IPCC on stratospheric cooling: «When the CO2 concentration is increased, the increase in absorbed radiation is quite small and increased emission leads to a cooling at all heights in the stratosphere.»

Human emissions are for 90 % in the NH and one can see that the increase is measured at sea level (Barrow) in the NH first, reaching the same level some 6 months later at height (Mauna Loa) then in the SH at sea level (Samoa) some 15 months later and then in the SH at height (South Pole) some 2 years later:

Since doubling the concentration of CO2 will halve the average height of emission, there is at most 0.5 W / m ^ 2 increase in back radiation from this cause.

You both forget one thing: against natural sources stand natural sinks, We only have rough estimates of the height of the sources and sinks and of their year by year variability, but we have quite exact figures of the difference between natural sources and sinks and their variability: that is the difference between the human emissions and what is measured as increase in the atmosphere.

The explanation for why Z T254K changes as a response to increasing IR opacity of the atmosphere is that emissions from a constant height will to a greater degree become re-absorbed when the air becomes increasingly opaque at or above this level.