Sentences with phrase «global average sea»

This is a direct estimate of global average sea surface temperature.

Of course this assumes global average sea level is accurate enough for the task and on a year - to - year basis it probably isn't but on a decade - to - decade basis it probably is.

«Dave Springer says: December 23, 2010 at 6:32 am I think a better measure of energy content is global average sea level.»

This expansion, combined with the melting of land - based ice, has caused global average sea level to rise by roughly 7 - 8 inches since 1900 — a trend that is expected to accelerate over coming decades.

I can't begin to imagine what a frank, honest, apolitical climate scientist or physicist would have to say about all the assumptions and statistical legerdemain that goes into coming up with such precise «measurements» of global average sea level.

IPCC: Global average sea level in the last interglacial (Eemian) period (130,000 - 111,000 years ago) was likely 13 to 20 feet (4 to 6 meters) higher than during the 20th century, mainly due to the retreat of polar ice.

During that interglacial period, the study states, global average sea level was up to 30 feet higher than it is now, despite a climate that was just about 1 degree Celsius, or 1.8 degrees Fahrenheit, milder than today.

As Media Matters has noted, the IPCC's 2007 «Synthesis Report» concluded that» [w] arming of the climate system is unequivocal, as is now evident from observations of increases in global average air and ocean temperatures, widespread melting of snow and ice and rising global average sea level» and that» [m] ost of the observed increase in global average temperatures since the mid-20th century is very likely [defined in the report as a» > 90 %» probability] due to the observed increase in anthropogenic [human - caused] GHG [greenhouse gas] concentrations.»

You know, I would have a lot less trouble believing climate scientists could actually measure changes in global average sea level to within a milimeter, if I didn't know how badly they overstate their confidence in «global average temperature» in all its many manifestations, with all its many assumptions, models and WAGs.

This could raise the global average sea - level by 7 metres over a period of 1,000 years or more.

One recent modeling study focused on this mode of instability estimated that the Antarctic ice sheet has a 1 - in - 20 chance of contributing about 30 centimeters (1.0 feet) to global average sea - level rise over the course of this century and 72 centimeters (2.4 feet) by the end of the next century.

Based on geological data, global average sea level may have risen at an average rate of about 0.5 mm / yr over the last 6,000 years and at an average rate of 0.1 — 0.2 mm / yr over the last 3,000 years.»

The global average sea surface temperature (SST) change over time since 1991.

For a future of continued growth in emissions the new results indicate a likely global average sea - level rise between 1.1 and 2.1 meters (3.6 to 6.9 feet)-- roughly double the IPCC - consistent estimate.

Regardless of emissions pathway and approach, there is likely to be between about 16 and 40 cm (0.5 and 1.3 feet) of global average sea - level rise in the first half of the century.

Rob and Dave's research found that these processes give rise to the potential for more than one meter of global average sea - level rise from Antarctica alone over the course of this century, and more than 15 meters over the next five centuries.

The net loss of billions of tons of ice a year added about 11 millimeters — seven - sixteenths of an inch — to global average sea levels between 1992 and 2011, about 20 % of the increase during that time, those researchers reported.

Amrit Banstola: The United Nations Intergovernmental Panel on Climate Change (IPCC) stated that — warming of the climate system is unequivocal, as is now evident from scientific observations of increases in global average temperature, melting of snow and ice, and rising of global average sea level.

Specifically, he believes global average sea level will rise some 15 to 20 feet by 2095.

Since the 1920s, the global average sea level has risen about nine inches, mostly from the thermal expansion of the ocean water.

Melting of ice raises the global average sea level, and reduces the gravitational attraction from the ice, which allows the sea level near the ice to fall while sea level far from the ice rises more than the global average.

Rise of the global average sea level over the time periods of most interest to human economies is controlled primarily by the mass or density of ocean water.

For global average sea level, the main control on water density over these times is ocean temperature, with warming causing thermal expansion by roughly 0.4 m per degree C (Levermann et al., 2013).

Global average sea levels have risen roughly 19 centimeters (7.5 inches) since the 19th century, after 2,000 years of relatively little change.

In 2007, IPCC notes «Global average sea level rose at an average rate of 1.8 [1.3 to 2.3] mm per year over 1961 to 2003.

d In all scenarios, the projected global average sea level at 2100 is higher than in the reference period [Working Group I Fourth Assessment 10.6].

Models agree on the qualitative conclusion that the range of regional variation in sea level change is substantial compared to global average sea level rise.

[4] Between 1870 and 2004, global average sea levels rose 195 mm (7.7 in), 1.46 mm (0.057 in) per year.

By 2100, global average sea level rise could be as low as 25 cms, or as high as 123 cms; between 0.2 % and 4.6 % of the world's population could be affected by flooding each year; and losses could be as low as 0.3 % or as high as 9.3 % of global gross domestic product.

(1) there is established scientific concern over warming of the climate system based upon evidence from observations of increases in global average air and ocean temperatures, widespread melting of snow and ice, and rising global average sea level;

MAY: Spencer: Global Average Sea Surface Temperatures Poised for a Plunge https://wattsupwiththat.com/2010/05/20/spencer-global-average-sea-surface-temperatures-poised-for-a-plunge/

Observed changes in (a) global average surface temperature; (b) global average sea level rise from tide gauge (blue) and satellite (red) data and (c) Northern Hemisphere snow cover for March - April.

Global average sea surface temperatures rose rapidly from the 1970s but have been relatively flat for the past 15 years.

Over the past century, global average sea level has risen by about 8 inches.

Over the past century, the global average sea level has risen four to eight inches.

9 9 Global mean temperature Global average sea level Northern hemisphere snow cover Observations of recent climate change

The global average sea - surface temperature, which set a record last year, is likely to equal or surpass that record in 2015.

At last, a responsible government has recognised that global average sea - level change is no more relevant to coastal management than average global temperatures are to the design of residential heating and cooling systems — local weather and local sea - level change is what matters.

The most recent report from the U.N. Intergovernmental Panel on Climate Change projected a global average sea level rise of between about one to three feet, although that report did not take the new findings on Antarctic ice melt into account.

Global average sea level is expected to continue to rise by at least several inches in the next 15 years and by 1 — 4 feet by 2100.

Sea - level projections by the Intergovernmental Panel on Climate Change (IPCC), by our research group and by others indicate that global average sea level at the end of the century would likely be about 1 - 2.5 feet higher under the Paris path than in 2000.

Global average sea levels have risen by around 3.2 mm per year since satellite measurements began in 1993, the report says, with sea levels around 67 mm higher in 2014 than they were in 1993.

On the previous sea surface temperature thread, I stated «Do you for one minute believe that the uncertainty in global average sea surface temperature in the 19th century is 0.3 C?

ocean temperatures, widespread melting of snow and ice, and rising global average sea level,» are three disjoint sources of confirmation that give us reliable enough trend information to establish consilience about what we may say after 2005 on HadCRUT4.

Sea level equivalent (SLE)- The change in global average sea level that would occur if a given amount of water or ice were added to or removed from the oceans.

For instance, it found that for the year 2040 on the worst - case emissions pathway, the global average sea - level rise would be 0.2 meters (0.65 feet), but «more than 90 percent of coastal areas will experience sea level rise exceeding the global estimate.»

► Eustatic sea - level rise is a change in global average sea level brought about by an increase in the volume of the world ocean.

Salinity changes within the ocean also have a significant impact on the local density and thus local sea level, but have little effect on global average sea level change.

Global average sea level rose at an average rate of 1.8 [1.3 to 2.3] mm per year over 1961 to 2003.

Fourth Assessment Report (2007): Global average sea level rose at an average rate of 1.8 [1.3 to 2.3] mm per year over 1961 to 2003.