Sentences with phrase «marker scenarios»

The phrase "marker scenarios" refers to specific situations or examples that are used to indicate or highlight certain points or ideas. These scenarios act as markers or indicators to help explain or demonstrate a concept or situation in a simple and straightforward way. Full definition
None of these are assumed in any IPCC marker scenario.
Figure 5 - 17: Anthropogenic CH4 emissions in the SRES marker scenarios by region.
Figure 5 - 20: Anthropogenic SO2 emissions in the SRES marker scenarios by region.
The subsequent sections discuss CH4 emission trajectories for individual scenario families, with sectoral and regional patterns described on the basis of the output of marker scenarios.
RCP4.5 and the CCSP Marker Scenario both fall in the lower part of this price range.
Figure explanation (from Davis et al. 2013): Idealization of future CO2 emissions under the business - as - usual SRES A2 marker scenario.
The IPCC Special Report on Emission Scenarios (SRES) generated six marker / illustrative scenarios (labelled A1B, A1T, A1FI, A2, B1, B2) plus four preliminary marker scenarios (labelled here A1p, A2p, B1p, and B2p).
Approximate CO2 - eq concentrations corresponding to the computed radiative forcing due to anthropogenic GHGs and aerosols in 2100 (see p. 823 of the WGI TAR) for the SRES B1, AIT, B2, A1B, A2 and A1FI illustrative marker scenarios are about 600, 700, 800, 850, 1250 and 1550ppm, respectively.
For example, the comparison of the A1B and B2 marker scenarios indicates that they have similar emissions of about 13.5 and 13.7 GtC by 2100, respectively.
The RCP4.5 and the CCSP RCP4.5 marker scenario on which the RCP was based fall in the middle of these estimates.
On average, the SRES marker scenarios project a shift in relative contribution in both energy - and industry - related and total CO2 emissions from the industrialized to developing regions.
Figure 5 - 16: Regional and global CO2 emissions in the four SRES markers scenarios A1B, A2, B1, and B2, shown as an index (1990 = 100).
The spread of IPCC projections for sea level rise through about 2100 across all six marker scenarios ranges from a low of 0.18 meters to a high of 0.59 meters.
The IAM used to characterise the A2 marker scenario did not include land - cover change, so changes under the A1 scenario were assumed to apply also to A2.
The final four marker scenarios contained in SRES differ in minor ways from the draft scenarios used for the AOGCM experiments described in this report.
The RCP4.5 has a slightly different emissions time path than its predecessor, the CCSP marker scenario.
Figure 5 - 18: Anthropogenic N2O emissions in the SRES marker scenarios by region.
Results from both sets of scenarios are discussed here since the preliminary marker scenarios (December 1998) were used in this report:
Four illustrative marker scenarios, one for each scenario family, were used in draft form in the 1998 SRES open process and are included in revised form in this report.
Two future worlds with fundamentally different characteristic features, such as A1B and B2 marker scenarios, also have different cumulative CO2 emissions and radiative forcing, but very similar CO2 emissions in 2100.
Figure 5 - 19: Halocarbons and other halogenated compounds emissions in the SRES marker scenarios by region.
The grey bars at right indicate the best estimate (solid line within each bar) and the likely range assessed for the six SRES marker scenarios.
In all the SRES marker scenarios, most emissions related to land use originate from the ASIA and ALM regions (Tables 5 - 13a - d).
Marker scenarios are shown with thick lines without ticks, globally harmonized scenarios with thin lines, and non-harmonized scenarios with thin, dotted lines (see Table 4 - 3).
Then, emissions from the marker scenarios for six regions (OECD90, REF, Centrally Planned Asia, Rest of Asia, Latin America, and Africa / Middle East, scaled to match the standardized emissions) were used for gridding purposes.
Further, to my knowledge there is no marker scenario presented in this document or anywhere in the current IPCC Assessment Report under which the best estimate for warming by 2100 is 5.50 C. I do not understand the basis for Mr. Romm's assertions.
They have declared six of these scenarios to be «marker scenarios» that collectively provide a representative spread of realistic possibilities.
The big problem with this argument, of course, is that the IPCC has already developed probability distributions for potential warming that include no measurable probability for warming anywhere near this level for any marker scenario.
However, the relative cooling effect of sulphate aerosols is dominated by the effects of increasing greenhouse gases by the end of the 21st century in the SRES marker scenarios (Figure 10.26), leading to the increased monsoon precipitation at the end of the 21st century in these scenarios (see Section 10.3.2.3).
For example, under the B2 storyline, the change in the global area of grassland between 1990 and 2050 varies between -49 and +628 million ha (Mha), with the marker scenario giving a change of +167 Mha (Naki» cenovi» c et al., 2000).
In accordance with a decision of the IPCC Bureau in 1998 to release draft scenarios to climate modelers for their input in the Third Assessment Report, and subsequently to solicit comments during the open process, one marker scenario was chosen from each of four of the scenario groups based on the storylines.
Marker scenarios are no more or less likely than any other scenarios, but are considered by the SRES writing team as illustrative of a particular storyline.
One of the harmonized scenarios, originally posted on the open - process web site, is called a «marker scenario
Harmonized: harmonized scenarios within a family share common assumptions for global population and GDP while fully harmonized scenarios are within 5 % of the population projections specified for the respective marker scenario, within 10 % of the GDP and within 10 % of the marker scenario's final energy consumption.
These six groups all have «illustrative scenarios,» four of which are marker scenarios.
The four marker scenarios are characteristic of the four scenario families and jointly capture most of the ranges of emissions and driving forces spanned by the full set of scenarios.
Marker scenarios are no more or less likely than any other scenarios but these scenarios have received the closest scrutiny.
Projected global average sea level rise during the 21st century and its components under SRES marker scenarios.
For three of the four marker scenarios (A1B, A2 and B2) temperature change from the draft and final scenarios are very similar.
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