Sentences with phrase «a2 temperature projection»

Thus Figure 1 depicts the IPCC TAR Scenario A2 temperature projection based on a simple climate model which was tuned to the seven Atmosphere - Ocean General Circulation Models (AOCGMs).

Not exact matches

The 2007 IPCC report highlights surface temperature projections for the period 2090 - 2099 under a business - as - ususal scenario that reveals +5 °C to +7 °C warming warming of annually average temperatures over much of Eurasia under an aggressive A2 scenario.

On the other hand, Easterbrook's two temperature projections showed a 0.2 °C and 0.5 °C cooling over this period, while the IPCC TAR Scenario A2 projection showed a 0.2 °C warming (Figure 6).

Figure 6: Easterbrook's two global temperature projections A (green) and B (blue) vs. the IPCC TAR simple model projection tuned to seven global climate models for emissions scenario A2 (the closest scenario to reality thus far)(red) and observed global surface temperature change (the average of NASA GISS, NOAA, and HadCRUT4)(black) over the period 2000 through 2011.

Figure 7 compares the IPCC TAR projections under Scenario A2 with the observed global surface temperature change from 1990 through 2012.

Figure 9: IPCC AR4 multi-model projection for emissions Scenario A2 (blue) vs. observed surface temperature changes (average of NASA GISS, NOAA NCDC, and HadCRUT4; red) for 2000 through 2012.

Projections for regionally averaged temperature increases by the middle of the century (2046 - 2065) relative to 1979 - 2000 are approximately 3.8 °F for a scenario with substantial emissions reductions (B1) and 4.9 °F with continued growth in global emissions (A2).

Figure 7: IPCC TAR model projection for emissions Scenario A2 (blue) vs. observed surface temperature changes (average of NASA GISS, NOAA NCDC, and HadCRUT4; red) for 1990 through 2012.

Model projections for precipitation changes are less certain than those for temperature.12, 2 Under a higher emissions scenario (A2), global climate models (GCMs) project average winter and spring precipitation by late this century (2071 - 2099) to increase 10 % to 20 % relative to 1971 - 2000, while changes in summer and fall are not expected to be larger than natural variations.

Figure 22.5: Projections for average annual ground temperature at a depth of 3.3 feet over time if emissions of heat - trapping gases continue to grow (higher emissions scenario, A2), and if they are substantially reduced (lower emissions scenario, B1).

Figure 3: Global mean temperature measurements (black) and projections based on an IPCC scenario with high emissions (A2) for a climate sensitivity parameter of 5 °C (upper red) and 2 °C (upper blue).

Which in fact Monckton's argument — if you read his response to John Abraham, specifically regarding the graph comparing global temperatures in the last decade against IPCC projections, he admits that the «IPCC» trend shown in his graph is greater than that for the IPCC's A2 scenario which it apparently represents, but explains that away by saying that essentially the IPCC got its sums wrong.