Sentences with phrase «meters per century»

Yodyte: «The sea rose and fell time and again, as much as 100 meters, sometimes rapidly, as much as 5 meters per century, usually falling more slowly.

100 years ago it would have been falling at 16.4 mm / yr or 1.64 meters per century!

However, Earth's history reveals sea level changes of as much as a few meters per century, even though the natural climate forcings changed much more slowly than the present human - made forcing.

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].»

That's why, in the past, Northern Hemisphere temperatures naturally rose at rates of 2 degrees C per decade and sea levels rose 5 meters per century while CO2 stayed constant.

«With cumulative fossil fuel emissions of 10,000 gigatonnes of carbon (GtC), Antarctica is projected to become almost ice - free with an average contribution to sea - level rise exceeding 3 meters per century during the first millennium.»

Also predictable is that we can anticipate sea level rising by meters per century for centuries to come, and that the base of the ocean food chain will be drastically changed and probably reduced by ocean acidification.

About four meters per century, according to Wikipedia.

Hansen seems to argue for a maximum rate of SLR, under BAU forcing, of at least 4 - 5 meters per century, somewhere in the coming centuries (including a negative feedback he calls the «ice berg cooling effect»).

Indeed, the paleoclimate record contains numerous examples of ice sheets yielding sea level rise of several meters per century, with forcings smaller than that of the BAU scenario.

They can't know how fast the rate of SLR could be, but can't exclude meters per century either.

The Indian subcontinent is pushing under the Tibetan Plateau at roughly 1.8 meters per century, but it regularly gets stuck; when the obstruction gives way, a section of the Tibetan plate lurches a few meters southward and releases the pent - up energy in an earthquake.

Paleoclimate data for sea level change indicate that sea level changed at rates of the order of a meter per century [81]--[83], even at times when the forcings driving climate change were far weaker than the human - made forcing.

Here visitors can walk over old corrals that once housed prehistoric lake creatures and stand among giant cacti that grow one meter per century.

And while that may seem like a long time, think of it this way: A meter per century is a centimeter every year, an inch every 2 1/2 years.

Despite the surge in CO2 concentrations since 1900, the UN's Intergovernmental Panel on Climate Change (IPCC) has concluded that global sea levels only rose by an average of 1.7 mm / yr during the entire 1901 - 2010 period, which is a rate of just 0.17 of a meter per century.

During the 1958 to 2014 period, when CO2 emissions rose dramatically, a recent analysis revealed that the rate of sea level rise slowed to between 1.3 mm / yr to 1.5 mm / yr, or just 0.14 of a meter per century.

That amount of warming will likely lock us into a sea level rise over subsequent centuries of at least 4 - 6 meters of at least 4 to 6 meters, at rates up to 1 meter per century.

Which is consistent with the half meter per century prediction by the IPCC.

Not exact matches

The Smilow, which opened in 2006, can withstand a storm surge of about 3.7 meters — 20 % higher than that expected from a once - per - century flood, according to the NYU.

An analysis of forest species in six French mountain ranges (the western Alps, northern Pyrenees, Massif Central, western Jura, Vosges and the Corsican range) shows that more than two thirds of them moved at least 60 feet (18.5 meters) higher on the mountainsides per decade during the 20th century.

Ice core data from Antarctic from ocean sediments show 8 episodes of very large ice flux — largest 14,600 years ago, meltwater pulse 1a — 1 - 3 meters sea level rise per century for several centuries.

That study found seas rose 1.6 meters (5 feet) per century «when the global mean temperature was 2 °C higher than today,» a rather mild version of where we are headed in the second half of this century.

So meters of SLR per century seem quite possible to Hansen, who I think we would ignore at our peril.

Much of the area is already experiencing rise rates on the order of a meter or more per century due to the ongoing production of oil, gas and associated water causing collapse and consolidation of the producing rock strata.

The paleoclimatic record suggests we may possibly lose about a watt per square meter if we return to Little Ice Age conditions, which is considerably smaller than the greenhouse forcing expected in the coming century.

Granted, it is «slow» right now, but the melting has been increasing quite substantially, and whereas the IPCC had been speaking in the neighborhood of a sea level increase of 50 cm, figures between one to two meters are becoming common as the result of observed changes, and with the nonlinear processes and resulting positive feedback, Jim Hansen has suggested that a sea level doubling per decade and increase of several meters (up to 5 m) by the end of the century is more realistic.

I noted how the overall rate in some studies, even on the scale of meters per millennium, «is not one of these uber - catastropes,» but that how much variation can occur within a century remains saddled with uncertainty, producing an «ugly mix of long - term certainty and short term murkiness.»

Granted, it is «slow» right now, but the melting has been increasing quite substantially, and whereas the IPCC had been speaking in the neighborhood of a sea level increase of 50 cm, figures between one to two meters are becoming common as the result of the observed higher rates since, and with the nonlinear processes and resulting positive feedback, Jim Hansen has suggested that a sea level doubling per decade and increase of several meters (up to 5 m) by the end of the century is more realistic.

That have more than a meter rise in sea level per century due to the large amount ice caps which can be melted.

I also find it very interesting that the sea level has risen 120 meters over the last 20,000 years — which is a background rise of 60 cm per century.

Greenland and Antarctica contain enough ice to raise sea levels by 70 meters, so even if they melt at only 5 % per century, that's over 3 meters or 10 feet per century.

Testimony to this assumption is the term that has been employed for more than a century to describe the radiation in all wavelengths received from the Sun: the so - called «solar constant,» whose value at the mean Sun - Earth distance is a little over 1 1/3 kilowatts per square meter of surface.

When comparing the ancient past with the modern 15 - site gauge per century trend of the last 30 years, it would take some 2,500 years to reach the 6 - meter higher sea levels recorded approximately 125,000 years ago at a much lower CO2 level.

We know that melting ice sheets have contributed to meters of sea level rise per year century (sorry for the error!)

Based on this historical record and the fact that the Laurentide melted away under summertime temperatures similar to those expected in Greenland by the end of this century, Carlson and his colleagues forecast glacial melting that contributes somewhere between 2.8 inches (seven centimeters) and 5.1 inches (13 centimeters) of sea level rise per year, or as much as a 4.3 - foot (1.3 - meter) increase by 2100.

The new research suggests the melting could accelerate, thereby raising sea level as fast, or faster, than three feet (about one meter) of sea level rise per century.

It then completely disappeared by 6,800 years ago in two geologically rapid bursts, shedding enough ice to raise sea levels by as much as four feet (1.3 meters) per century, according to research published this week in Nature Geoscience.

Decadal changes in climate are fascinating phenomena well worthy of study, but they are NOT an important way to estimate climate sensitivity over a century or more in response to forcing of 3 to 8 Watts per square meter.