The effect is to reduce the rate at which temperature would otherwise
decline with height (the lapse rate).
So, there is no real «need» for the temperature to
decline with height.
The slope of the temperature
decline with height will be determined by the strength of the gravitational field acting on the entire mass of the atmosphere.
That warming on descent also reduces the rate of temperature
decline with height which suppresses convection from the surface so that the surface on the day side then warms more than it otherwise would have done and the surface on the night side cools less quickly than it otherwise would have done..
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.
If the temperature doesn't
decline with height in that layer (perhaps because of solar heating), it is still the case that increasing the LW optical thickness will, by concentrating the source of OLR into a yet thinner layer at the top of the atmosphere, remove some of the cooling of the lower part of the original OLR source (by adding additional downward LW flux from above, replacing the darkness of space), thus tending to cause warming there.
For this reason the water vapor pressure
declines with height much faster than the other (non-condensable) atmospheric gases.
Not exact matches
Furthermore, the rates of
decline signalled by the PMI have been strong over much of this period — exceeding those seen in the prior survey history
with the exception of the
height of the financial crisis in 2008 - 9.
The confidence has many roots: the steady
decline of models of theology in which «critical appraisal» is the dominant task; receptiveness toward and fresh engagement
with classical thinkers, patristic, medieval and Reformation; a sense that the Enlightenment is only one episode in the history of one (Western) culture and not a turning point in the history of humankind; the work of a number of gifted and independent - minded theologians now at the
height of their powers who have shown the potency of constructive doctrinal work.
Then one may watch across the great plain while evening
declines over the shoulder of the hills of Israel, silhouetting the high lookout of Elijah's Place of Sacrifice and picking out
with its last rays the church - crowned summit of Tabor; he may follow the gliding cloud shadows over the wide slope toward Galilee, and cling entranced to the fleeting tints of rose and gold and violet that enshrine the friendly
heights while the last rays of the westering sun, far out over the Sea, touch lightly
with a ruddy promise of hope and joy the last summits of the hills.
With 35 snow slides of varying
heights and
declines, Village Vacances Valcartier, America's largest winter playground, is a snow tuber's dream.
You can use it in incline, flat, and
decline positions for your weight lifting exercises and it doubles as a step bench
with 2 different
heights.
Researchers noted that a
decline in stroke incidence and mortality rates in most high - income countries, primarily in women, occurred simultaneously
with a general increase in attained adult
height.
For this movement, you will place a
declined bench under the Smith machine and set the bar at a
height that's reachable from a lying position
with almost fully extended arms.
Choose the right
decline height for where you're starting at, and try doing a couple each round - switch to the floor or
with your hands on the box, feet on the floor to build strength.
The archeological record shows that in every measurable way human health
declined with this transition,
with clear evidence of physical degeneration, including a loss of
height and bone density, and a dramatic increase in dental and skeletal problems.
Your positive past payment record, combined
with future
declining balances and an ever - increasing length of credit history, could soon cause your scores to return to their current
heights and ultimately higher.
The
declining density gradient
with height (caused by gravity) permits lighter, warmer air to rise further away from the surface than can colder, heavier air at the same upward pressure gradient force.
Uneven conduction to the atmosphere from the illuminated surface is all that is needed combined
with the
declining density gradient
with height.
The warmed, higher molecules cool at a rate determined by the
decline of pressure
with height (the lapse rate).
The inappropriately - named «greenhouse» effect is actually the effect of absorption / emission of IR radiation due to radiatively - active gases combined
with the effect of
declining temperature
with height of the atmosphere (lapse rate).
N2 will have an average
height of 9 km independent of any other molecules present, and this will follow an exponential
decline with altitude.
I can't see how convection would stagnate in a non radiative atmosphere because there would still be a
declining pressure gradient
with height leading to a lapse rate and convection.
The science on that has been settled for a long time and is summarised here: The presence of an atmospheric lapse rate (
decline of temperature
with height) is discussed.
The models assume very small
declines and increases (less than 1 % pp) in relative humidity at these levels over the same period (depending on
height) so the data would be very inconsistent
with the models and the theory.
The same can be said about how we do not know precisely how warm the globe will get in 25, 50, 100, or 150 years, dynamics do change; the 1990's was the
height of recent population explosion, and even though the global population is rising steadily, the incline has decreases a bit; China, India, japan have issues
with pollution, overcrowding, exponential GDP growth or
decline, respectively.