Sentences with phrase «mean sea level during»

Based on ice - sheet model simulations consistent with elevation changes derived from a new Greenland ice core, the Greenland ice sheet very likely contributed between 1.4 m and 4.3 m sea level equivalent, implying with medium confidence a contribution from the Antarctic ice sheet to the global mean sea level during the last interglacial period.

[31] About Greenland IPCC SPM § B4 states: «we can say with a very high confidence level that the maximum mean sea level during the last interglacial (129 ka to 116 ka) has been at least 5 m above today's seal level....

A convention has then been applied for the whole time series so that the averaged global mean sea level during the year 1993 is set to zero.

There is very high confidence that maximum global mean sea level during the last interglacial period (~ 129 to 116 ka) was, for several thousand years, at least 5 m higher than present and high confidence that it did not exceed 10 m above present, implying substantial contributions from the Greenland and Antarctic ice sheets.

Not exact matches

During the preceding glaciation (the LGM, or «Last Glacial Maximum»), global mean temperature was approximately 6 Celsius degrees cooler, sea levels were at least 120 meters lower than at present.

However, it means that your high - fat, low - carb diet should include thyroid supporting foods rich in iodine and selenium, such as sea vegetables and brazil nuts, and should also include carbohydrates timed properly, such as before, during or after workouts, when the carbohydrate is more likely to be utilized for energy and less likely to spike blood glucose levels.

Global mean sea level will continue to rise during the 21st century.

However long it took, sea level was 4 - 6m higher during the LIG, with global mean temperature only 1C or so warmer, and CO2 100 ppm or so less than today's.

During the preceding glaciation (the LGM, or «Last Glacial Maximum»), global mean temperature was approximately 6 Celsius degrees cooler, sea levels were at least 120 meters lower than at present.

-- Sea level continued to rise: Global mean sea level continued to rise during 2013, on pace with a trend of 3.2 ± 0.4 mm per year over the past two decadSea level continued to rise: Global mean sea level continued to rise during 2013, on pace with a trend of 3.2 ± 0.4 mm per year over the past two decadsea level continued to rise during 2013, on pace with a trend of 3.2 ± 0.4 mm per year over the past two decades.

I recently stumbled upon a paper which states, in the abstract, that global mean sea level «rises with the rate of 3.2 ± 0.4 mm / yr during 1993 — 2003 and started decelerating since 2004 to a rate of 1.8 ± 0.9 mm / yr in 2012.»

It might be worth emphasising that whether or not there has been an acceleration of sea level rise during recent decades, mean sea level rise as such is a long term fixture which is unstoppable by any human agency and to which adaptation will perforce be necessary.

On the global mean sea level rise during the last interglacial period (129,000 to 116,000 years ago), the UK, Austria, US, Germany and others supported providing a policy relevant context and linking paleoclimatic observations on sea level rise to temperature.

This means that the sea levels may rise in the twenty - first century only a few centimetres more than what they rose during the twentieth century.

«Trends and acceleration in global and regional sea levels since 1807» «Evaluation of the global mean sea level budget between 1993 and 2014» «Considerations for estimating the 20th century trend in global mean sea level» «New estimate of the current rate of sea level rise from a sea level budget approach» «Reassessment of 20th century global mean sea level rise» «The increasing rate of global mean sea - level rise during 1993 — 2014» «Unabated global mean sea - level rise over the satellite altimeter era» «An increase in the rate of global mean sea level rise since 2010»

Abstract The rate at which global mean sea level (GMSL) rose during the 20th century is uncertain, with little consensus between various reconstructions that indicate rates of rise ranging from 1.3 to 2 mm ⋅ y − 1.

I was fascinated to discover that changing sea levels, including extremely high global sea levels 65 — 250 feet (20 — 75 m) above today's mean, occurred during the «hothouse Earth» era.

«It is very likely that the rate of global mean sea level rise during the 21st century will exceed the rate observed during 1971 — 2010 for all Representative Concentration Pathway (RCP) scenarios due to increases in ocean warming and loss of mass from glaciers and ice sheets.

''... when correcting for interannual variability, the past decade's slowdown of the global mean sea level disappears, leading to a similar rate of sea - level rise (of 3.3 ± 0.4 mm yr − 1) during the first and second decade of the altimetry era.

(e.g. according to AR5 sea levels stayed flat during the little ice, meaning continued ice cap melt has opposed the ocean cooling and glacier advance elsewhere.)

«It is very likely that the rate of global mean sea level rise during the 21st century will exceed the rate observed during 1971 — 2010 for all RCP scenarios... with a rate of rise 8 — 15 mm yr — 1 over the last decade of the 21st century) for RCP8.5.»

Is there any altimetry data to show how mean sea level varies along the peruviean coast during these events?

Geological evidence, mainly coral reefs on tectonically stable coasts, was described in the review of Overpeck et al. [51] as favouring an Eemian maximum of +4 to more than 6 m. Rohling et al. [52] cite many studies concluding that the mean sea level was 4 — 6 m above the current sea level during the warmest portion of the Eemian, 123 — 119 kyr BP; note that several of these studies suggest Eemian sea - level fluctuations up to +10 m, and provide the first continuous sea - level data supporting rapid Eemian sea - level fluctuations.

(Top) Time series of the NPI (sea level pressure during December through March averaged over the North Pacific, 30 ° N to 65 ° N, 160 ° E to 140 ° W) from 1900 to 2005 expressed as normalised departures from the long - term mean (each tick mark on the ordinate represents two standard deviations, or 5.5 hPa).

Global sea level trend during 1993 — 2012 Here we investigate the global - mean sea level (GMSL) change during 1993 — 2012 using Empirical Mode Decomposition, in an attempt to distinguish the trend over this period from the interannual variability.

In a new comprehensive analysis published in Geophysical Research Letters, a French - led research team found that global mean sea level is rising 25 percent faster now than it did during the late 20th century.

Table 1 summarizes mean variation rates of temperature, sea level and GHG concentrations during (A) the last termination (19 — 10 kyr), (B) the Holocene (10 kyr to mid-19th century), (C) mid-19th century to mid-1970s, and (D) mid-1970s to 2005, based on ice core studies [2], IPCC - 2001 and IPCC - 2007 [3], NASA - GISS [4], CSIRO Marine and Atmospheric Research [5], UK Meteorological Office [6] datasets and science journals.

Since this is ice core data this means that the ice didn't melt during these warm periods and there was no abnormal sea level rise indicated during these warm times either.

Based on current understanding, only the collapse of marine - based sectors of the Antarctic Ice Sheet, if initiated, could cause global mean sea level to rise substantially above the likely range during the 21st century.

The Dutch Ministry of Transport uses the figure 60 % (below high water level during storms), while others use 30 % (below mean sea level).

I don't know what «benchmark island» means, but the current best estimate of the rate of sea - level rise, averaged over the world during 2003 to 2008, is +2.5 millimetres / yr, give or take 0.4 mm.

Could it be that increased levels of greenhouse gases in the atmosphere are slowing down the escape of the LWR emitted by the seas (heat) meaning that the energy gained during a La Nina does not have time to escape the atmosphere before then next El Nino kicks in and bumps temperatures up a notch?