Sentences with phrase «abrupt changes of temperature»

In fact, although rosacea can also be precipitated by «hot or spicy food and drinks, alcohol, physical exercise, high temperature environments or abrupt changes of temperature,» [8] the number one trigger for rosacea is sun exposure.

Not exact matches

But within these long periods there have been abrupt climate changes, sometimes happening in the space of just a few decades, with variations of up to 10ºC in the average temperature in the polar regions caused by changes in the Atlantic ocean circulation.

These customary phase transitions manifest as an abrupt change in the state of matter such as ice melting to water, or water boiling to vapor, at some critical temperature.

Our study suggests that at medium sea levels, powerful forces, such as the dramatic acceleration of polar ice cap melting, are not necessary to create abrupt climate shifts and temperature changes.»

Hot Wet Atmospheric Rivers Ravage Arctic: Part 1 of 4 / / Published on Feb 23, 2018 Ongoing abrupt climate change is causing global weather mayhem, causing huge temperature swings from icebox chills to heat records, and torrential rains with record floods.

Many of the national parks are prone to abrupt and dramatic temperature changes.

Luscious glazes and abrupt changes in color temperature and value resonate with our understanding of the visible world and its internal coordinates in our psyches.

What really concerns me is that I've read a lot about climate models not being able to replicate the magnitude of abrupt regional temperature changes in the past, and Raypierre has said here that he fears that past climate records point towards some yet unknown positive feedback which might amplify warming at the northern latitudes.

One of the lessons drawn from comparing Greenland to Antarctica and many other places is that some of the temperature changes (the ice - age cycling) are very widespread and shared among most records, but other of the temperature changes (sometimes called millennial, or abrupt, or Younger - Dryas - type) are antiphased between Greenland and the south, and still other temperature changes may be unrelated between different places (one anomalously cold year in Greenland does not tell you the temperature anomaly in Australia or Peru).

Small changes in initial conditions drive abrupt and nonlinear change evident in many of the global ocean and atmospheric indices — and indeed in the surface temperature trajectory.

The range of uncertainty for the warming along the current emissions path is wide enough to encompass massively disruptive consequences to societies and ecosystems: as global temperatures rise, there is a real risk, however small, that one or more critical parts of the Earth's climate system will experience abrupt, unpredictable and potentially irreversible changes.

In a study published today in Science, that graph has been extended back 11,300 years and you can really see the scope of the abrupt temperature change.

I also have never been satisfied that the magnitude of temperature change identified in the abrupt cooling for the GIS during the Younger Dryas is not exaggerated.

These are measurements of sea surface temperature and atmospheric pressure over more than 100 years which show evidence for abrupt change to new climate conditions that persist for up to a few decades before shifting again.

Abrupt and severe temperature shifts have occurred on occasion in the past, typically separated by hundreds of years or more, but shifts of this magnitude that are global in extent have almost always occurred during glacial eras, when the extent of snow and ice allowed for great changes in feedback in response to only modest signals.

Toggweiler for example estimates that the opening of the Drake Passage improve the rate of ocean mixing enough to produce roughly a 4 C magnitude «abrupt» change in «global» surface temperature.

Ghil, 2013, explored the idea of abrupt climate change with an energy balance climate model that follows the evolution of global surface - air temperature with changes in the global energy balance.

This period, known as the «last deglaciation,» included episodes of abrupt climate change, such as the Bølling warming [~ 14.7 — 14.5 ka], when Northern Hemisphere temperatures increased by 4 — 5 °C in just a few decades [Lea et al., 2003; Buizert et al., 2014], coinciding with a 12 — 22 m sea level rise in less than 340 years [5.3 meters per century](Meltwater Pulse 1a (MWP1a)-RRB-[Deschamps et al., 2012].»

The interglacial and the glacial planetary temperature data shows cycles of warming and cooling interrupted by very strong «RCEs» (Rickies) Rapid Climatic Change Events (For example the Younger Dryas abrupt cooling event and the termination of the last interglacial).

The new study explores what happened to ocean circulation when the Earth went through a series of abrupt climate changes in the past, during a time when ice covered part of North America and temperatures were colder than today.

In light of the near periodicity in the temperature fluctuations of the previous 10,000 years that would represent an abrupt change in the natural background variation, so it seems unlikely.

«At medium sea levels, powerful forces − such as the dramatic acceleration of polar ice cap melting − are not necessary to result in abrupt climate shifts and associated drastic temperature changes.»

Dansgaard et al. (1989); increasingly abrupt changes were seen on further study, Johnsen et al. (1992); Grootes et al. (1993); jumps of Greenland snow accumulation «possibly in one to three years» were reported by Alley et al. (1993); see Alley (2000); five - year Younger Dryas steps: Taylor et al. (1997); a Younger Dryas temperature step in less than a decade was found to be hemisphere - wide since methane gas changed as well, Severinghaus et al. (1998).

By looking at proxy temperature reconstructions and at major global glacier advances, and other climate proxies, it is easy to recognize the major abrupt cooling changes of the Holocene.

Extreme warm temperatures in summer can greatly increase the risks of mega-fires in temperate forests, boreal forests, and savanna ecosystems, leading to abrupt changes in species dominance and vegetation type, regional water yield and

Sea - level change is limited for Mg / Ca temperatures up to about 5 °C above current values, whereupon a rather abrupt sea - level rise of several tens of metres occurs, presumably representing the loss of Antarctic ice.

If I recall correctly, your examination of historical temperature records show that abrupt climate changes are more the norm than the exception, and that we don't readily know why.

quality, and carbon emission (e.g., Adams, 2013), before the gradual increase of surface temperature crosses the threshold for abrupt ecosystem collapse (more discussion in the section on Ecosystem Collapse and Rapid State Change below).

I thought the talk of abrupt climate change and tipping points ended shortly after the release of the horrible movie «The Day After Tomorrow», where the temperatures seemed to plummet to several hundred degrees below absolute zero.

One important question oceanographers are trying to answer is how small changes in the placement, temperature, speed and volume of currents might result in large or abrupt changes in Earth's long - term climate.

From the chart, it is clear there are very abrupt changes in acceleration and deceleration of temperatures, which strongly suggest powerful natural climate factors are in the driver's seat, not human CO2 emissions.

[ii] The range of uncertainty for the warming along the current emissions path is wide enough to encompass massively disruptive consequences to societies and ecosystems: as global temperatures rise, there is a real risk, however small, that one or more critical parts of the Earth's climate system will experience abrupt, unpredictable and potentially irreversible changes.

One of the Team's more adventurous assumptions in creating temperature histories is that there was an abrupt and universal change in SST measurement methods away from buckets to engine inlets in 1941, coinciding with the U.S. entry into World War II.

In 2004 some teams pointed out that the huge gaps and uncertainties in the pre-19th century data, and the methods used to average the data, could conceal changes of temperature in the past that might have been as large and abrupt as anything seen in modern times.