Sentences with phrase «air temperature trends»

Figure 1 - Sea surface temperature trends scaled with global surface air temperature trends for half the climate models used in the study.

The panel was asked to assess whether these apparently conflicting surface and upper air temperature trends lie within the range of uncertainty inherent in the measurements and, if they are judged to lie outside that range, to identify the most probable reason (s) for the differences.

To remove this difference in magnitude and focus instead on the patterns of change, the authors scaled the vertical profiles of ocean temperature (area - weighted with respect to each vertical ocean layer) with the global surface air temperature trend of each period.

These are the Simple Ocean Assimilation Data (SODA) scaled with the surface air temperature trends from the National Center for Enviromental Prediction (NCEP) / National Center for Atmospheric Research (NCAR).

So we'll assume that the global surface air temperature trend since 1984 has been one of 0.20 °C per decade warming.

Kevin Trenberth is now arguing that the reason observed air temperature trends don't match modeled trends is because of «missing heat» in the oceans.

(Right) Map of residual surface air temperature trends after removal of natural variability temperature signals (adapted from Johnstone and Mantua, 2014).

Mr. Legates critiques the Arctic Climate Impact Assessment that proclaimed Arctic air temperature trends strongly indicate global warming, causing polar ice caps and glaciers to melt.

Even modest changes in circulation patterns could significantly alter air temperature trends

For this to be true you would have to prove that minor long - term global air temperature variations drive ocean oscillations and that these ocean oscillations — at some later point — influence global long - term air temperature trends....

Summary: The paper concluded that between 1880 and 2002, surface air temperature trends in China were strongly influenced by natural variations in solar intensity.

A number of possible research strategies for improving the understanding of uncertainties inherent in the various measurement systems and the relationship between surface and upper air temperature trends are proposed in the report.break

From the control simulations the authors selected three non-overlapping 50 - year periods for every model with the largest surface air temperature trends.

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.

Animation 1 compares the GISS land surface air temperature trends to UAH lower troposphere temperature trends over land for the period of 1979 to 2012.

Despite the many unresolved issues touched on in this chapter and discussed in more detail in chapters 5 — 9, the progress that has been achieved over the past few years provides a basis for drawing some tentative conclusions concerning the nature of the observed differences between surface and upper air temperature trends, and their implications for the detection and attribution of global climate change.break

Actually Huang does recognize and talk about the difference in trends derived for a climate model between tas and tos using the GFLD CM2.1 model and there the authors report trend differences from 1875 to 2000 where the ocean air temperature trends are higher than the ocean surface temperature trends on the order of what the Cowtan paper found for several CMIP5 models.

Greenland surface air temperature trends, including at the Summit site, have not shown persistent warming since 1930 in contrast to global average surface temperature (23).

Mann, M.E., and G.A. Schmidt, 2003: Ground vs. surface air temperature trends: Implications for borehole surface temperature reconstructions.