«Some have suggested
cyclic changes in the overturning may be warming and cooling the whole North Atlantic over the course of several decades and affecting rainfall patterns across the US and Africa, and even the number of hurricanes in the Atlantic.»
So while one might speculate that some of the changes in tropical Atlantic hurricane statistics could be related to
cyclic changes in climate (i.e., the AMO), it is very difficult to argue this for hurricane statistics in other ocean basins, let alone global average hurricane statistics.
«Continuous climate change — induced by
cyclic changes in gravitational interactions of the Sun's energetic core with planets — has favored survival by adaptation.»
For example, a recent slowing in the rate of surface air temperature rise appears to be related to
cyclic changes in the oceans and in the sun's energy output, as well as a series of small volcanic eruptions and other factors.
But matters are greatly complicated by atmospheric circulation patterns,
cyclic changes in temperatures over the oceans, and the shapes of land masses.
To add insult to injury, many of the people delivering this disruptive message do not seem — at least to some geologists — to be sufficiently deferential to the extensive knowledge about the slow and
cyclic changes in the geological past.
[Response: They are imposed directly as
cyclic changes in the amount (and spectra) of the incoming solar radiation.
The non linear nature of forcing is related more to positive feedbacks and changes that are still being studied, such as
cyclic changes in moisture content and regional dispersion, the methane cycles in the ocean or the potential of methane clathrate / hydrate release, and of course the race to feed more people on a planet which will inevitably add more nitrous oxide to the atmosphere and create more dead zones in the oceans, droughts, floods, fires, dogs and cats living together, mass hysteria....
The normal genital tract of the female California sea lion (Zalophus californianus):
cyclic changes in histomorphology and hormone receptor distribution.
While Milankovitch forcing predicts that
cyclic changes in the Earth's orbital parameters can be expressed in the glaciation record, additional explanations are necessary to explain which cycles are observed to be most important in the timing of glacial — interglacial periods.
In the current study, prediction analysis of gene expression data was implemented in order to identify the genes that are most useful to determine the state of
cyclic changes in locomotor activity.
Massive reorganizations of the ocean - atmosphere system, the authors argue, are the key events that link
cyclic changes in the earth's orbit to the advance and retreat of ice sheets
Not exact matches
The increase, observed as early as 60 seconds after the addition of corticotropin - releasing factor, suggests that
changes in the intracellular concentration of the
cyclic nucleotide coincide with or precede the secretion of adrenocorticotropic hormone
in response to corticotropin - releasing factor.
«We hope to refine these multivariable descriptions so that we can anticipate the
cyclic changes to drug susceptibility
in mycobacteria, and eventually use them to shorten the long and difficult treatment course for tuberculosis.»
Two - dimensional polyacrylamide gel electrophoresis combined with chromatographic phosphoprotein pre-enrichment and electrospray ionization mass spectrometry - based protein identification was used to reveal
changes of phosphoproteins
in cells exposed to
cyclic stretching.
In the current study, the researchers used infradian cyclic locomotor activity in the mutant mice as a proxy for mood - associated changes, and examined their molecular basis in the brain by conducting prediction analyses of the gene expression dat
In the current study, the researchers used infradian
cyclic locomotor activity
in the mutant mice as a proxy for mood - associated changes, and examined their molecular basis in the brain by conducting prediction analyses of the gene expression dat
in the mutant mice as a proxy for mood - associated
changes, and examined their molecular basis
in the brain by conducting prediction analyses of the gene expression dat
in the brain by conducting prediction analyses of the gene expression data.
Additionally, body fat percentages
in wild mammals typically vary by age and sex and also seasonally
in a
cyclic waxing and waning manner with
changing availability of food sources and the photoperiod (Figure 5)(57,58).
A similar approach
in the context of teacher professional development requires teacher educators to adopt a willingness to
change the nature, structure, and even the assumptions of their professional development programs
in response to
cyclic evaluation data, ongoing participants» experiences, and participants» reflections.
Can a
change (if observed)
in these short - term and
cyclic variations explain the existing stabilisation (or weak increasing) of CH4 atmospheric concentration?
You please look
in to WMO (1966) mannual on «climate
change» for the types analysis used to separate trend from
cyclic variations which I did since early 1970s.
However, the assumption here is that the only
cyclic signal is due to
changes in the Earths orbit, but evidence (e.g. Sharma02) suggests that the sun itself may be varying
in activity.
And his citing of the «WMO mannual on «climate
change» for the types analysis used to separate trend from
cyclic variations which I did since early 1970s» is not what he was citing it for
in his December 2013 posting on Wattsupia.
I forgot to mention it, but with the age of climate
change upon us and all the historic natural things that go along with it for example forest fires,
cyclic dust bowls, flooding, all nature's way to replenish the trace minerals
in the soils.
It is a fact that there are
cyclic warming and cooling events (periodicity 1400 years plus or minus a beat timing of 500 years)
in the paleo record and roughly every 8000 years to 12,000 years the cooling is abrupt and there is a larger magnitude
change.
As noted above however as the earth's temperature does not widely oscillate when there are large temporary forcing
changes, the explanation for
cyclic abrupt climate
change in the paleo record is not that the planet amplifies the forcing.
The question you address at the end is to what extent the current «pause» is a temporary
cyclic phenomenon and to what extent it is a true
change in the long term trend.
Well worth reading K&L's book:
Cyclic Climate
Changes and Fish Productivity and Frolov et al's new book on the Arctic: Climate
Change in Eurasian Arctic Shelf Seas.
Even signals that are
cyclic, but have distinct phase
changes exhibit a large amount of interference
in lower frequency bands.
It is a fact that the planet has cyclically warmed and cooled
in the past and that solar magnetic cycle
changes correlate with the
cyclic warming and cooling of the planet.
In the SH, Neisen 2004 lists the more common frequencies he isolated, «Spectral analysis reveals centennial - scale
cyclic climate
changes with periods of 1220, 1070, 400, and 150 yr.»
However all of these
changes may be
cyclic or quasi-chaotic
in nature and not mainly driven by the «forcing CO2».
The amplitude of the
change is about 3.5 °C which is similar but less than the 3.9 °C
cyclic variation
in the atmospheric temperature.
However, this doesn't work with the AMO, which tracks the large
cyclic air temperature
changes in the Arctic very closely but lags them by 5 - 10 years.
These
cyclic changes, brought about by the
changing gravitational pull of the other planets and the Moon, introduce periods of about 19, 23, 41, and 100 thousand years
in the distribution of sunlight over the globe.
There are a few things to remember about Greenland: many experts are not convinced that current
changes are unusual — such
changes are
cyclic, and the last warm period
in Greenland, 1920 - 1940 also saw a lot of melting.
These also depend upon what is built
in as features of the model: Does one want
cyclic behavior of some kind or to just model step
changes?
In «
Cyclic Climate
Changes and Fish Productivity» K.B. Klashtorin and A.A. Lyubshin found spectra of ice cores and tree rings showed peaks at 25.6, 32, 32.5, 38.6, 53.9, 55.3, 60.2, and 75.8 year periods.
al. is paywalled, I can't see their references — is the prior work
in this area by KLYASHTORIN and LYUBUSHIN, «
CYCLIC CLIMATE
CHANGES AND FISH PRODUCTIVITY», which found cycles with periods of 16.8, 25.6, 26, 32, 32.5, 38.6, 39, 53.9, 54, 55.3, 60, 60.2, 50 - 70, 72, 75.8, 76, 99, and 108 years
in the climate record consistent with their results?
In the almost sure knowledge that the earth never experienced a runaway greenhouse even with ancient CO2 levels 10 to 20 times greater than today, these anti-science scoundrels insist with a «high level of confidence» that this amplification is real and it's based on nothing more than faster than expected surface temperature rise in the past few decades which can be TOTALLY explained by multi-decadal cyclic behavior in ocean currents, trade winds, and / or solar magnetic activity causing small global average albedo change
In the almost sure knowledge that the earth never experienced a runaway greenhouse even with ancient CO2 levels 10 to 20 times greater than today, these anti-science scoundrels insist with a «high level of confidence» that this amplification is real and it's based on nothing more than faster than expected surface temperature rise
in the past few decades which can be TOTALLY explained by multi-decadal cyclic behavior in ocean currents, trade winds, and / or solar magnetic activity causing small global average albedo change
in the past few decades which can be TOTALLY explained by multi-decadal
cyclic behavior
in ocean currents, trade winds, and / or solar magnetic activity causing small global average albedo change
in ocean currents, trade winds, and / or solar magnetic activity causing small global average albedo
changes.