And some diseases that spread among people might turn out to be nearly impossible to predict using satellite and environmental data beyond what researchers already know
about seasonal cycles, like that for the seasonal flu.
Not exact matches
Economists distinguish a number of types of unemployment, however: cyclical unemployment is brought
about by the vagaries of the business
cycle; structural unemployment is brought
about by changes in the economy or the labour market, when the jobs available do not fit the workforce's skills; frictional unemployment is the phenomenon of people being «between jobs»; and
seasonal unemployment is linked to certain types of
seasonal jobs, such as farm work and construction.
The area has a predictable
seasonal cycle, where the water rises and descends, with average changes of
about 35 feet during the course of the year.
The
seasonal cycle in atmospheric CO2 shows that the lifetime of a CO2 molecule in the air before it is exchanged with another in the land biosphere is
about 12 years.
Although the
seasonal and circadian rhythms have been fairly well - described, little is known
about the exact effects of the lunar
cycle on the behavior and physiology of humans and animals.
Shadow walls — where suspended panels with cutout images cast shadows as the sun shines through the cutouts — teach students
about the earth's rotation and
seasonal cycles as shadows cast by the sun shift positions and lengths.
About «Tuning»: ``... It is important to note that these exercises are done with the mean climate (including the
seasonal cycle and some internal variability)-- and once set they are kept fixed for any perturbation experiment..»
And, that just coincidently, the rate of the rise has consistently been (when averaged over a few year period to smooth out variability due to
seasonal cycles and other factors) equal to
about half of the emissions of CO2 that we are putting into the atmosphere?
A similar point could be made
about short - term multi-annual phenomena such as ENSO: the annual
seasonal cycle interacts with the evolution of whatever factors are involved with ENSO, with the precise determination of the outcome depending on exactly how the seasons line up with that evolution.
The RCP8.5 2090 Prediction ratio using the OLR
seasonal cycle predictor is under half that using all predictors — it implies a 6 % uplift in projected warming, not «
about 15 %».
frankclimate: Tsushima and Manabe (2013) shows that various AOGCMs disagree seriously with each other and with CERES
about the change the
seasonal cycle for: 1) OLR from cloudy skies, 2) OSR from cloudy skies, and 3) OSR from clear skies (
seasonal change in surface albedo).
The global amplitude of the
seasonal cycle globally is 3.5 K (which I think is a hemispheric average
about 10 K of warming in the NH and -3 K of «warming» in the SH).
At present they are limited to guesses
about ENSO but have nothing adequate
about any other oceanic
cycles and nothing
about air circulation shifts apart from
seasonal changes and a simple observation that warming moves them poleward.
Thus the ~ 5 years residence time of any CO2 molecule in the atmosphere says next to nothing
about what happens at the end of the year (after a full
seasonal cycle).
Thus while the accumulation in CO2 mass is only 2 % of the inflows, the
seasonal inflow is a part of a
cycle and the total natural
cycle shows a net loss of
about 3.5 GtC / yr.