«evidence from cores near Newfoundland confirms previous suggestions that the Little lce Age was the most recent
cold phase of the 1 - 2kyr cycle»
In
every cold phase of a cycle, polar oceans freeze and it always snows less and it always gets warm.
Only reason it is slower is because most of that period we've been in
the Cold Phase of the PDO.
And with much of the past decade being in
the cold phase of the Pacific Decadal Oscillation, there certainly is no surprise to a briefly slower upward climb.
Beta, Most of 1999 thru 2013 was in
the cold phase of the PDO, as well as some other factors which have slowed the trend.
Not sure why that's significant, other than since we've been in a temporary
cold phase of the Pacific Decadal Oscillation from about 2000 - 2013 the record warm years had a slightly lower magnitude.
Conversely, increased abundances of Coccolithus pelagicus and Calcidiscus leptoporus before 1970 mark
the cold phase of PDO.
The cold phase of ENSO is called La Niña.
Our analysis further shows that how the ENSO related teleconnection to the Indian Ocean region differ under warm and
cold phase of PDO.
Since La Nina is
the cold phase of the ENSO (El Nino Southern Oscillation) there are certain weather patterns associated with it.
We have conducted an all - sky survey for more than 94 % of the whole sky during
cold phase of AKARI observation in 2006 Feb. — 2007 Aug..
And a study by Rahmstorf (2003) also concludes that the LIA may be the most recent
cold phase of the D - O cycle, and his research suggests that the 1,470 - year periodicity is so regular that it's more likely due to an orbital cycle than a solar cycle.
Lev Gudkov, head of the Russian polling group Levada - Center, told The Journal that in Russia «most people believe that the Third World War has begun, but right now we are still in
the cold phase of the war, which may or may not turn into a hot war.»
The data show that the most extreme
cold phases of the Little Ice Age — in the mid-15th and then again in the early 18th centuries — were synchronous in Europe and South America.
Throughout the altimeter era, it has been recognized that sea level rise is not constant but varies considerably about the background trend, with the largest of these departures coinciding with the warm and
cold phases of the El Niño Southern Oscillation (ENSO) such as in 1997 — 1998 (Fig. 2).
We have a pretty good idea that the Heinrich events, with the most prominent bipolar seesaw behavior, are linked to ice - sheet behavior, but we're less confident about the non-Heinrich
cold phases of the D / O oscillations (the cold phases do have more ice - rafted debris in these non-Heinrich cold - phases than in warm phases, but is that an ice - dynamical signal, a survival - of - icebergs signal, or something else?).
We have fairly high confidence that we observe the history of Heinrich events (huge discharges of ice - rafted debris from the Laurentide ice sheet through Hudson Bay that are roughly coincident with large southern warming, southward shift of the intertropical convergence zone, extensive sea ice in the north Atlantic, reduced monsoonal rainfall in at least some parts of Asia, and other changes), and also
cold phases of the Dansgaard / Oeschger oscillations that lack Heinrich layers and are characterized by muted versions of the other climate anomalies I just mentioned.
The LIA represents
the coldest phase of the last 10,000 years when mean temperatures deviated strongly negatively from the Holocene average and which therefore are hard to justify as a representative pre-industrial baseline.
That is an extremely large signal (e.g., of similar magnitude to what we can easily observe in the damage record between warm and
cold phases of ENSO).
First let's look at how ice ages —
the cold phases of glacial cycles — work on Earth.
Not exact matches
Inflation happens in a «
cold» spacetime in its later
phases, relatively weak quantum fluctuations
of gravitons and presumably inflatons being present.
I kicked off the new year feeling uninspired and was soon run down by a
cold, random injury, rough parenting
phase, and string
of bad sleeps.
I'm out
of my salad
phase right now because it's been so
cold here lately.
We missed a church Halloween party the first weekend
of her illness (which has evolved through several
phases now, to include a fever and
cold and ear infections and obnoxious persistent cough - poor babe).
FOOD LOSS Postharvest food losses - occurring at the production, harvest, postharvest and processing
phases - are the most important source
of FLW in developing countries, due to poor infrastructure, poor temperature management, low levels
of technology and low investment in the food production systems, especially the
cold chain.
Condensation is a
phase transition
of matter that occurs when water vapor contained in hot, humid air comes in contact with a
cold surface.
The Governor announced a $ 30 million investment to support the launch
of Phase One on the campus
of Cold Spring Harbor Laboratory.
Bartke has «really paid his dues» in three different
phases of his career, says Roth: grappling with the challenges
of doing science during the
Cold War in Eastern Europe, building his reputation in endocrinology in the United States, and then making his largely unbacked foray into biogerontology.
Cold - blooded animals go through
phases of slow growth that leave telltale rings in their bones.
Assuming Proxima b is tidally locked, Webb could then detect changes in the planet's thermal glow as its
cold, nightside and warm, sunlit dayside shift in and out
of view across one complete orbit, rather like watching
phases of the moon as it circles Earth.
This gap documents a globally - recognised regression
phase, probably linked to a period
of a
cold climate and glaciation.
The first
phase of heat generation in
cold climates is nearly at the point
of being commissioned, while the third
phase of testing thermo - fluids will begin in early 2016.
For the next iteration
of experiments they will dive into much deeper,
colder temperatures, approximately -90 degrees C -LRB--130 degrees F), and look at ice with small amounts
of ammonia or sulfuric acid, which are second
phases suggested for Enceladus and Europa, respectively.
The AMO, in which temperatures over a large swath
of the northern Atlantic Ocean fluctuate between warm and
cold phases on a 50 - to 70 - year cycle, is one example.
For example, the notable drying
of the Sahel from the 1950s to the 1980s has been attributed to one such
cold phase.
Warm
phases of the AMO are linked to increased rainfall in the Sahel, while the opposite is true for the
cold phase.
According to their observations, sea surface temperatures in the Atlantic can be up to 1.5 °C warmer in the Gulf Stream region during the positive
phase of the AMO compared to the negative,
colder phase.
By combining data from multiple studies, Zhang and his colleagues identified six major cycles
of warm and
cold phases from 1000 to 1911.
When the AMO is in its positive
phase and the sea surface temperatures are warmer, the study has shown that the main effect in winter is to promote the negative
phase of the NAO which leads to «blocking» episodes over the North Atlantic sector, allowing
cold weather systems to exist over the eastern US and Europe.
«The negative
phase of the NAO is typically associated with
colder winters.
Spanning most
of the Northern Hemisphere, we suggest that this
cold phase be considered as an additional environmental factor contributing to the establishment
of the Justinian plague7, 8, transformation
of the eastern Roman Empire and collapse
of the Sasanian Empire1, 2,5, movements out
of the Asian steppe and Arabian Peninsula8, 11,12, spread
of Slavic - speaking peoples9, 10 and political upheavals in China13.
Genetic continuity in south - central Siberia before and after the LGM provides evidence for the presence
of humans in the region throughout this
cold phase, which is
of consequence to population movements into Beringia and ultimately the Americas around 15,000 years ago.
This successful first detection
of cold gas -
phase methanol in a protoplanetary disc means that the production
of ice chemistry can now be explored in discs, paving the way to future studies
of complex organic chemistry in planetary birthplaces.
Positive (negative)
phases of the AMO coincide with warmer (
colder) North Atlantic sea surface temperatures.
(This warm
phase is part
of a larger cycle called the El Niño - Southern Oscillation that also has a neutral
phase and a
cold phase, called La Niña.)
The El Niño / La Niña pattern
of warm or
cold water in the equatorial Pacific has shifted to neutral
phase.
During the positive
phase of the AO,
cold air is characteristically locked up over the Arctic by a strong polar vortex, and the mid-latitudes tend to be mild.
A collision between two large galaxies is usually the cause
of such starburst
phases, where the
cold gas residing in the giant molecular clouds becomes the fuel for sustaining such high rates
of star formation.
«The frequent occurrence
of cold winters may be a temporary phenomenon in a transitional
phase of eventual global warming.»
The ice ages were actually many pulses
of cold glacial
phases interspersed with warmer interglacials.