Sentences with phrase «global land surface warming»

For example, at 4 °C of global land surface warming (510 — 758 ppm of CO2), vegetation carbon increases by 52 — 477 Pg C (224 Pg C mean), mainly due to CO2 fertilization of photosynthesis.

Not exact matches

Warmer than average temperatures were evident over most of the global land surface, except for parts of western Europe, northern Siberia, parts of eastern Asia and much of central Australia stretching north.

Warmer than average temperatures were evident over most of the global land surfaces, except for parts of the United States and western Europe, northern Siberia, parts of eastern Asia and much of central Australia stretching north.

June — August 2014, at 0.71 °C (1.28 °F) higher than the 20th century average, was the warmest such period across global land and ocean surfaces since record keeping began in 1880, edging out the previous record set in 1998.

June 2013 tied with 2006 as the fifth warmest June across global land and ocean surfaces, at 0.64 °C (1.15 °F) above the 20th century average of 15.5 °C (59.9 °F).

With ENSO - neutral conditions present during the first half of 2013, the January — June global temperature across land and ocean surfaces tied with 2003 as the seventh warmest such period, at 0.59 °C (1.06 °F) above the 20th century average.

«The World Meteorological Organization (WMO) said global land surface temperatures in January and April were likely the warmest since records began in 1880, at more than 1 degree Celsius higher than average for those months.

«The reason for the layering is that global warming in parts of Antarctica is causing land - based ice to melt, adding massive amounts of freshwater to the ocean surface,» said ARC Centre of Excellence for Climate System Science researcher Prof Matthew England an author of the paper.

With the contribution of such record warmth at year's end and with 10 months of the year record warm for their respective months, including the last 8 (January was second warmest for January and April was third warmest), the average global temperature across land and ocean surface areas for 2015 was 0.90 °C (1.62 °F) above the 20th century average of 13.9 °C (57.0 °F), beating the previous record warmth of 2014 by 0.16 °C (0.29 °F).

The former is likely to overestimate the true global surface air temperature trend (since the oceans do not warm as fast as the land), while the latter may underestimate the true trend, since the air temperature over the ocean is predicted to rise at a slightly higher rate than the ocean temperature.

Since NOAA began keeping records in 1880, the combined global land and ocean surface temperature was the warmest on record for both April and for the period from January through April in 2010.

If the recent «slowdown» in global surface warming is reversing, the stronger land carbon sink seen in recent years may weaken again, and the rise in CO2 may quicken again.

land surface air temperature) wouldn't cause the whole edifice of anthropogenic global warming to collapse.

Rather, «land surface warming» is one of more than ten bricks supporting «global warming»; and with global warming established, there is a whole other set of bricks supporting «anthropogenic global warming».

«The World Meteorological Organization (WMO) said global land surface temperatures in January and April were likely the warmest since records began in 1880, at more than 1 degree Celsius higher than average for those months.

But I thought that the lower atmosphere was expected to warm faster than the surface (when comparing global, land + ocean trends).

«The global annual temperature for combined land and ocean surfaces for 2007 is expected to be near 58.0 °F and would be the fifth warmest since records began in 1880.

-- The combined global land and ocean average surface temperature for the December — February period was 0.41 °C (0.74 °F) above the 20th century average of 12.1 °C (53.8 °F), making it the 17th warmest such period on record and the coolest December — February since 2008.

Geoengineering proposals fall into at least three broad categories: 1) managing atmospheric greenhouse gases (e.g., ocean fertilization and atmospheric carbon capture and sequestration), 2) cooling the Earth by reflecting sunlight (e.g., putting reflective particles into the atmosphere, putting mirrors in space to reflect the sun's energy, increasing surface reflectivity and altering the amount or characteristics of clouds), and 3) moderating specific impacts of global warming (e.g., efforts to limit sea level rise by increasing land storage of water, protecting ice sheets or artificially enhancing mountain glaciers).

The surface heat capacity C (j = 0) was set to the equivalent of a global layer of water 50 m deep (which would be a layer ~ 70 m thick over the oceans) plus 70 % of the atmosphere, the latent heat of vaporization corresponding to a 20 % increase in water vapor per 3 K warming (linearized for current conditions), and a little land surface; expressed as W * yr per m ^ 2 * K (a convenient unit), I got about 7.093.

The former is likely to overestimate the true global surface air temperature trend (since the oceans do not warm as fast as the land), while the latter may underestimate the true trend, since the air temperature over the ocean is predicted to rise at a slightly higher rate than the ocean temperature.

1) Which part of the planet does «global warming» apply to — ie which parts of the atmosphere (how high), oceans (how deep) and land surface (how deep)?

Seems to me the debate about AGHG global warming and increasing TC frequency / intensity / duration boils down to the fact that as sea surface temperatures, as well as deeper water temperatures rise, the wallop of any TC over warmer seas without mitigating circumstances like wind sheer and dry air off land masses entrained in the cyclone will likely be much more devastating.

«It is affirmed that global atmospheric warming does not necessarily mean a more drying atmosphere or a drier land surface.»

I also think that if one wishes to prove that carbon dioxide in the atmosphere is the cause of global warming then the focus of temperature measurement should be upon those few feet between the Earth's surface and the measuring instruments employed on land for measuring that temperature.

While global land surface temperatures were the fourth warmest, it...

«Global surface temperature trends, based on land and marine data, show warming of about 0.8 deg C over the last 100 years.

By comparing modelled and observed changes in such indices, which include the global mean surface temperature, the land - ocean temperature contrast, the temperature contrast between the NH and SH, the mean magnitude of the annual cycle in temperature over land and the mean meridional temperature gradient in the NH mid-latitudes, Braganza et al. (2004) estimate that anthropogenic forcing accounts for almost all of the warming observed between 1946 and 1995 whereas warming between 1896 and 1945 is explained by a combination of anthropogenic and natural forcing and internal variability.

Over the past century, surface warming over global drylands (1.2 — 1.3 °C) has been 20 — 40 % higher than that over humid lands (0.8 — 1.0 °C), while anthropogenic CO2 emissions generated from drylands (∼ 230 Gt) have been only ∼ 30 % of those generated from humid lands (∼ 750 Gt).

Since land covers about 29 % of the Earth's surface, the warm bias due to this influence explains about 30 % of the IPCC estimate of global warming.

The annual anomaly of the global average surface temperature in 2014 (i.e. the average of the near - surface air temperature over land and the SST) was +0.27 °C above the 1981 - 2010 average (+0.63 °C above the 20th century average), and was the warmest since 1891.

Water takes longer to heat up and cool down than does the air or land, so ocean warming is considered to be a better indicator of global warming than measurements of global atmospheric temperatures at the Earth's surface.

Surface warming: «Global temperature evolution: recent trends and some pitfalls» «Coverage bias in the HadCRUT4 temperature series and its impact on recent temperature trends» «Recently amplified arctic warming has contributed to a continual global warming trend» «On the definition and identifiability of the alleged «hiatus» in global warming» «Global land - surface air temperature change based on the new CMA GLSAT datasetSurface warming: «Global temperature evolution: recent trends and some pitfalls» «Coverage bias in the HadCRUT4 temperature series and its impact on recent temperature trends» «Recently amplified arctic warming has contributed to a continual global warming trend» «On the definition and identifiability of the alleged «hiatus» in global warming» «Global land - surface air temperature change based on the new CMA GLSAT dataset&Global temperature evolution: recent trends and some pitfalls» «Coverage bias in the HadCRUT4 temperature series and its impact on recent temperature trends» «Recently amplified arctic warming has contributed to a continual global warming trend» «On the definition and identifiability of the alleged «hiatus» in global warming» «Global land - surface air temperature change based on the new CMA GLSAT dataset&global warming trend» «On the definition and identifiability of the alleged «hiatus» in global warming» «Global land - surface air temperature change based on the new CMA GLSAT dataset&global warming» «Global land - surface air temperature change based on the new CMA GLSAT dataset&Global land - surface air temperature change based on the new CMA GLSAT datasetsurface air temperature change based on the new CMA GLSAT dataset»

Oh, and regarding that last quote — why promote the misperception that land surface air temperatures equals «global warming.»

So no, there is no pause, and the global earth system — including the atmosphere, the ocean and the land surface — continues to warm.

Given ocean surface is over twice land surface and some of the land some of the time is quite wet this drags down the average that CO2 warming can acheive on a global basis.

95 % confidence that 50 % of the warming since 1951 is due to some form of human activity is not likely to be falsified using «Global» surface temperature since about 30 % of the warming is over land and GISS interprets high latitude and higher altitude warming as «surface» warming.

Since most of our ocean sensors are on the surface, and «ocean temperature» is often used as shorthand for «ocean surface temperature», it seems to me that we should see the oceans warming at least as fast as the land, if internal ocean variability could explain global warming.

You are spending a lot of time rationalizing WHY there was a «standstill» in global warming (as measured by the «globally and annually averaged land and sea surface temperature anomaly»).

-- Increased urbanization and land use changes since WWII as a possible partial cause of warming of global surface temperature over land.

Since then there are a number of papers published on why the warming was statistically insignificant including a recent one by Richardson et al. 2016 which tries to explain that the models were projecting a global tas (temperature air surface) but the actual observations are a combination of tas (land) and SST oceans, meaning projected warming shouldn't be as much as projected.

However that was not my point which was that the ocean surface T's were in general conformity with global (and hence land air T's) up until the ~ 1980 to ~ 1998 warming phase when there is a very pronounced divergence according to Hadley / UEA.

Many agricultural regions warm at a rate that is faster than the global mean surface temperature (including oceans) but slower than the mean land surface temperature, leading to regional warming that exceeds 0.5 °C between the +1.5 and +2.0 °C Worlds.

The metric used by IPCC in all its reports for past and projected future «global warming» has been the «globally and annually averaged land and sea surface temperature anomaly» (as reported by HadCRUT3).

Please note that neither the land data nor the ocean data used in this analysis are the ones used in the NCEI paper «Possible artifacts of data biases in the recent global surface warming hiatus» that appeared on June 4, 2015.

C. warmer than it was with respect to the start of the industrial revolution, I believe that it would be necessary to use actual average global land - ocean surface temperature data (which would be imperfectly known that far back).

Both NASA GISS and NOAA NCEI use NOAA's ERSST.v4 «pause buster» data for the ocean surface temperature components of their combined land - ocean surface temperature datasets, and, today, both agencies are holding a multi-agency press conference to announce their «warmest ever» 2016 global surface temperature findings.

Berkeley Earth was founded in early 2010 with the goal of addressing the major concerns of skeptics regarding global warming and the land surface temperature record.

Life on land, argues Schwartzman, has intensified the chemical weathering of rocks such that carbon dioxide has been removed from the atmosphere and the surface temperature of the Earth has remained cooler than if life had not been present - a kind of inverted global warming.

Global warming affects evapotranspiration — the movement of water into the atmosphere from land and water surfaces and plants due to evaporation and transpiration — which is expected to lead to: