Sentences with phrase «global land surface air temperature»

Figure 6 shows the global land surface air temperature plus sea surface temperature anomalies (average of GISS LOTI, HADCRUT4 and NCDC datasets, like The Escalator) before, during and after the 1997/98 El Niño.

Not exact matches

The Tibetan Plateau in China experiences the strongest monsoon system on Earth, with powerful winds — and accompanying intense rains in the summer months — caused by a complex system of global air circulation patterns and differences in surface temperatures between land and oceans.

Smith, T.M. and R.W. Reynolds, 2005: A global merged land air and sea surface temperature reconstruction based on historical observations (1880 - 1997), J. Clim., 18, 2021 - 2036.

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.

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

Lou Grinzo (12)-- I am under the impression that HadCRUTv3 uses air temperatures on land and sea surface temperatures in the oceans to produce their global mean.

However, the CRU global mean combined land air / sea surface temperature estimates for Jan - Aug 2005 lag behind the 1998 annual mean estimate by 0.08 C (0.50 C vs. 58C for 1998) while GISS indicates a lag of 0.02 C.

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.

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.

AGW and models say that there will be an increase in the global temperature [air or sea or land surface, take your pick] if the CO2 increases.

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.»

Figure 1: Global temperatures from models are calculated using air temperatures above the land surface and also from the upper few meters of the ocean.

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.

I'm inclined to think that Ocean Heat Content, trends in land ice and Sea levels are more appropriate indicators of global climate change than surface air temperatures, but that's another issue.

The fact this is seemingly not fully recognized — or here integrated — by Curry goes to the same reason Curry does not recognize why the so called «pause» is a fiction, why the «slowing» of the «rate» of increase in average ambient global land and ocean surface air temperatures over a shorter term period from the larger spike beyond the longer term mean of the 90s is also meaningless in terms of the basic issue, and why the average ambient increase in global air temperatures over such a short term is by far the least important empirical indicia of the issue.

«Causes of differences in model and satellite tropospheric warming rates» «Comparing tropospheric warming in climate models and satellite data» «Robust comparison of climate models with observations using blended land air and ocean sea surface temperatures» «Coverage bias in the HadCRUT4 temperature series and its impact on recent temperature trends» «Reconciling warming trends» «Natural variability, radiative forcing and climate response in the recent hiatus reconciled» «Reconciling controversies about the «global warming hiatus»»

There is even a slightly finer distinction that is almost always skipped: when it comes to the land record, we're talking about global surface air temperature.

Figure 2.4 (Folland et al., 2001) shows simulations of global land - surface air temperature anomalies in model runs forced with SST, with and without bias adjustments to the SST data before 1942.

The global SST show mostly similar trends to those of the land - surface air temperature until 1976, but the trend since 1976 is markedly less (Table 2.1).

Global average surface air temperatures only reflect the heat present in the atmospheric layer immediately above the land / ocean surface.

NCDC merges their Extended Reconstructed Sea Surface Temperature version 3b (ERSST.v3b) with the Global Historical Climatology Network - Monthly (GHCN - M) version 3.2.0 for land surface air temperSurface Temperature version 3b (ERSST.v3b) with the Global Historical Climatology Network - Monthly (GHCN - M) version 3.2.0 for land surface air tempersurface air temperatures.

References: Smith, T. M., and R. W. Reynolds (2005), A global merged land air and sea surface temperature reconstruction based on historical observations (1880 - 1997), J. Climate, 18, 2021 - 2036.

https://judithcurry.com/2016/02/10/are-land-sea-temperature-averages-meaningful/ Several of the major datasets that claim to represent «global average surface temperature» are directly or effectively averaging land air temperatures with sea surface temperatures.

Ocean surface temperatures increase 0,44 deg C, total global increase 0,55 deg C, land air increase 0,9 deg C, low troposphere (RSS and UAH) 0,44 deg C. I think you would get much of the same impression of the differences with a different timespan.

Blue points: the GISS 1999 land + sea global surface air temperature record.

Global temperatures usually are described in terms of the surface air temperature anomaly, the deviation of the temperature at each site from a mean of many years that is averaged over the whole world, both land and oceans.

However, for changes over time, only anomalies, as departures from a climatology, are used, most commonly based on the area - weighted global average of the sea surface temperature anomaly and land surface air temperature anomaly.

Cartoon comparing (a) Fi, instantaneous forcing, (b) Fa, adjusted forcing, which allows stratospheric temperature to adjust, (c) Fg, fixed Tg forcing, which allows atmospheric temperature to adjust, (d) Fs, fixed SST forcing, which allows atmospheric temperature and land temperature to adjust, and (e) DTs, global surface air temperature calculated by the climate model in response to the climate forcing agent.»

Modelled surface air temperature increases in all regions and seasons, with most land areas warming more rapidly than the global average (Giorgi et al., 2001; Ruosteenoja et al., 2003).

Therefore, in contrast to the Jones et al. (2001) global land - surface air temperature data, the global land and sea surface temperature data are not a simple average of the hemispheres.