Not exact matches
When
humidity is low,
evaporation increases, when
humidity is high,
evaporation decreases and less cooling occurs.
Increased temperature leads to increased evaporation from the sea, and thus to higher absolute humidity (assuming fixed relative humidity), and since H2O molecules are even more effective infrared absorbers than CO 2 molecules, the warming trend is re
Increased temperature leads to
increased evaporation from the sea, and thus to higher absolute humidity (assuming fixed relative humidity), and since H2O molecules are even more effective infrared absorbers than CO 2 molecules, the warming trend is re
increased evaporation from the sea, and thus to higher absolute
humidity (assuming fixed relative
humidity), and since H2O molecules are even more effective infrared absorbers than CO 2 molecules, the warming trend is reinforced.
The layer will also gradually
increase its
humidity by
evaporation of the ocean or lake surface, as well as by the effect of cooling itself.
Absence of CO2,
humidity increases, goes to saturation level - >
evaporation decreases.
I had stated that globally the rate of
evaporation and precipitation
increase at the same rate as the
humidity of saturation, that is, by 8 % per 1 °C based on a roughly constant residence time, but this is false:
b] moire CO2
increases condensation = as rainmaker, gets read of
humidity - >
increases evaporation =
evaporation is cooling process - > more
evaporation - > more clouds as sun umbrellas — more rain — more raw material for replenishing the ice on the polar caps and glaciers.
Even in areas where precipitation does not decrease, these
increases in surface
evaporation and loss of water from plants lead to more rapid drying of soils if the effects of higher temperatures are not offset by other changes (such as reduced wind speed or
increased humidity).5 As soil dries out, a larger proportion of the incoming heat from the sun goes into heating the soil and adjacent air rather than evaporating its moisture, resulting in hotter summers under drier climatic conditions.6
Evaporation increases with rising surface temperature, decreasing relative
humidity, and
increasing surface wind speed.
Temperatures are continuing to rise with consequent
increases in
evaporation and atmospheric
humidity and reductions in snow amount and snow season length in many regions.
The
increase in relative
humidity is due to warmer surface sea temperatures allowing greater
evaporation and warmer polar conditions causing less condensation.
For example, the atmospheric warming due to
increased CO2 might well be expected to
increase water
evaporation so as to keep Relative
Humidity constant (albeit raising Specific
Humidity), so amplifying the small warming effect of CO2 itself.
Is this point only about the radiative characteristics of the H2O vapour, and the assumption that relative and / or specific
humidity should rise thanks to CO2 - induced
increased evaporation, which in turn would
increase downwelling heat radiation — or just the part that slightly hotter surface (due to CO2) also emits more heat to be trapped by the vater vapour?
Moreover, significant trends in sensible heat and
evaporation rates are evident in satellite - derived datasets, especially in the Barents - Kara Sea region in the fall due to
increases in the air - sea temperature and
humidity gradients, collocated with reductions in sea ice.
In the real world one can influence the rate of
evaporation either by reducing pressure or by
increasing the energy content of the water (amongst other ways such as
increased air movement and
humidity changes).
Still further, it is conceivable that a colder climate could
increase evaporation if wind speeds were to
increase substantially, or this could also happen if boundary layer relative
humidity were to decrease.
The Nest thermostat can sense temperature, but it can't sense the effect of a fan, which cools your body by
increasing evaporation of sweat, a very personal and subjective factor that will vary depending on what you are wearing,
humidity and many other personal factors.
According to Isaac Held, climate models predict that the relative
humidity over oceans will have to rise about 1 % (a 5 %
increase in 1 — RH) to suppress surface
evaporation which would otherwise rise at 7 % / degC and create a surface energy imbalance (because DLR
increases with warming nearly as fast as OLR).