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Tuesday, April 28, 2020 | History

2 edition of Attribution of greenhouse gas emissions, concentrations and radiative forcing found in the catalog.

Attribution of greenhouse gas emissions, concentrations and radiative forcing

I. G. Enting

Attribution of greenhouse gas emissions, concentrations and radiative forcing

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  • 4 Currently reading

Published by CSIRO in [Mordialloc, Vic.] .
Written in English

    Subjects:
  • Greenhouse effect, Atmospheric -- Australia.,
  • Climatic changes -- Australia.,
  • Greenhouse effect, Atmospheric -- Government policy -- Australia.

  • Edition Notes

    StatementI.E. [i.e. I.G.] Enting.
    SeriesCSIRO Atmospheric Research technical paper -- no. 38.
    ContributionsCSIRO (Australia), Australia. Environment Australia.
    The Physical Object
    Pagination29 p. :
    Number of Pages29
    ID Numbers
    Open LibraryOL16057886M
    ISBN 100643063447


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Attribution of greenhouse gas emissions, concentrations and radiative forcing by I. G. Enting Download PDF EPUB FB2

Attribution of concentrations and radiative forcing, given the partitioning of emissions between various groups of nations. The Intergovernmental Panel on Climate Change (IPCC) has carried out a number of scientific assessmentsof greenhouse issues based on many disparate inputs.

The IPCC’s use of illustrative. Additional Physical Format: Online concentrations and radiative forcing book Enting, I.G. Attribution of greenhouse gas emissions, concentrations and radiative forcing.

[Mordialloc, Vic.]: CSIRO, © Sections include: Executive Summary Radiative Forcing Forcing-Response Relationship Well-Mixed Greenhouse Gases Stratospheric Ozone Radiative Forcing By Tropospheric Ozone Indirect Forcings due to Attribution of greenhouse gas emissions The Direct Radiative Forcing of Tropospheric Aerosols The Indirect Radiative Forcing of Tropospheric Cited by: Improved Attribution of Climate Forcing to Emissions being a greenhouse gas with a radiative forcing of Greenhouse gas emissions from agricultural soil are strongly affected by.

In order to stabilize greenhouse gas radiative forcing at W/m 2 compared to pre-industrial levels, greenhouse gas emissions in the different models need to concentrations and radiative forcing book reduced substantially in comparison to the baseline emissions.

The exact numbers obviously differ depending on the by:   On this basis, carbon dioxide emissions account for 80% of the contribution to global warming of current greenhouse gas emissions, as compared with 57% of the increase in radiative forcing Cited by:   The RCP simulations are run with projected increases in greenhouse gases and represent the high emission scenario that is the most representative of global CO 2 emissions from to present, whereas the piControl simulations are forced with the external forcing fixed at levels.

We select 17 CMIP5 models for which historical Cited by: a warming of Earth's atmosphere by greenhouse gases that trap reflected heat rather than allowing it to escape into space. The predominant greenhouse gas produced by human use of fossil fuels is __________. carbon dioxide. The combustion of hydrocarbons and carbon-based fossil fuels concentrations and radiative forcing book carbon dioxide.

Inthe Annual Greenhouse Gas Index waswhich represents a 37 percent increase in radiative forcing (a net warming influence) since (see Figure 1).

Of the concentrations and radiative forcing book gases shown in Figure 1, carbon dioxide accounts for by far the largest share of radiative forcing sinceand its contribution continues to grow at a steady rate.

Fig. Radiative forcing from to Numerical values within the figure give the net forcing (instantaneous at the tropopause).

Uncertainties in the abundance-based values are for CO 2, for methane, + to – for ozone, for sulfate, for concentrations and radiative forcing book, and for stratospheric water ().For emissions-based values, we estimate uncertainties by adding the forcing Cited by:   Methane (CH 4) is the second most important long-lived greenhouse gas and contributes about 17% of radiative forcing.

Approximately 40% of methane is. CDE, then, is the time-integrated radiative forcing of a quantity or rate of gas emissions to the troposphere.

It is not an instantaneous value of the radiative forcing by a concentration of greenhouse gases in the atmosphere. Attribution of greenhouse gas emissions CDE is the product of the greenhouse gas mass (in.

Radiative forcing for each gas is computed from these concentrations, and total radiative forcing for all gases is used to calculate the AGGI. The AGGI shows that the warming influence of long-lived greenhouse gases in the atmosphere increased by 42% between and   RCP is a so-called ‘baseline’ scenario that does not include any specific climate mitigation target.

The greenhouse gas emissions and concentrations in this scenario increase considerably over time, leading to a radiative forcing of W/m 2 at the end of the by: Radiative forcing quantifies the effect of factors that influence Earth's energy balance, including changes in the concentrations of greenhouse gases.

Positive radiative forcing leads to warming by increasing the net incoming energy, whereas negative radiative forcing leads to cooling. 29 hexafluoride (SF 6)—on the Earth’s radiation balance, measured in ter ms of radiative 30 forcing. Four radiative forcing stabilization levels are considered.

The resulting 31 atmospheric concentrations of the largest single contributor, CO 2, are roughly, 32 and ppmv. In response to the Prospectus for this research.

Climate Change Radiative Forcing of Climate Change and an Evaluation of the IPCC IS92 Emission Scenarios Paperback – by John T. Houghton (Editor), L. Meira Filho (Editor), James P. Bruce (Editor), Hoesung Lee (Editor), Bruce A.

4/5(1). Emissions. We use an emission inventory for the year that provides data for all precursor emissions except black and organic carbon emissions from (), with updated energy use data and updated emission s burning emissions are – averages from the Global Fire Emissions Database ().NH 3 emissions are from the Edgar inventory representative of the Cited by:   Carbon dioxide, methane, nitrous oxide, and other greenhouse gases increased over the course of the 20th century due to human activities.

The human-caused increases in these gases are the primary forcing that accounts for much of the global warming of the past fifty years, with carbon dioxide being the most important single radiative forcing agent ().Cited by:   We present the greenhouse gas concentrations for the Representative Concentration Pathways (RCPs) and their extensions beyondthe Extended Concentration Pathways (ECPs).

These projections include all major anthropogenic greenhouse gases and are a result of a multi-year effort to produce new scenarios for climate change research.

We combine a suite of atmospheric Cited by: Radiative forcing for each gas is computed from these concentrations, and total radiative forcing for all gases is used to calculate the AGGI.

Radiative forcing from methane has steadily increased sinceafter having been nearly constant from to indicator-annual-greenhouse-gas-index, Indicator: Annual Greenhouse Gas Index: Key Points: 1.

The Annual Greenhouse Gas Index (AGGI) is a measure of the capacity of Earth’s atmosphere to trap heat as a result of the presence of long-lived greenhouse gases. The AGGI provides standardized information about how human activity has affected the climate system through greenhouse gas emissions.

teracting the radiative forcing due to mitigated anthropogenic greenhouse gas emissions (Wigley, ), to only being de-ployed if dangerous climate change is imminent or underway (Angel, ).

Either way, accurate quantifications of poten-tial climate cooling effects is crucial. Yet there is somethingCited by: Actually, on a molecule for molecule basis it has a much smaller effect than most other greenhouse gases.

Two measures are used to determine the relative effects of the different gases – radiative forcing and global warming potential (GWP).

Radiative forcing is a measure of the change in the earth's energy balance caused by a given substance. Emissions of a broad range of greenhouse gases of varying lifetimes contribute to global climate change. Carbon dioxide displays exceptional persistence that renders its warming nearly irreversible for more than 1, y.

Here we show that the warming due to non-CO2 greenhouse gases, although not irreversible, persists notably longer than the anthropogenic changes in the greenhouse gas Cited by: We need to account for the effect of all of these other greenhouse gases.

We can do this using the concept of CO 2 equivalent (CO 2 _eq). CO 2 _eq is the concentration of CO 2 that would be equivalent, in terms of the total radiative forcing, to a combination of all the other greenhouse gases.

If we take into account the rises in methane and other anthropogenic greenhouse gases, then the net. anthropogenic and non-anthropogenic climate forcing variables is therefore consistent with the Guidelines because the TSD describes the radiative forcing effects of both variables and includes an entire section on the attribution of observed climate change to anthropogenic greenhouse gas emissions at the global and continental scale.

An agreement drafted in that calls for reducing, byemissions of six greenhouse gases to levels lower than their levels in Although the US has refused to ratify the protocol, it came into force in when Russia ratified it, the hundred and th nation to do so.

Each RCP plots a different emissions trajectory (pathway) and cumulative emission concentration in The deliverable is a download from a central repository. Scientists can preview and download data on emissions, concentrations, radiative forcing and land use, in regional and gridded form, following different trajectories over similar.

Greenhouse gas emission reduction targets are commonly expressed in either parts per million of carbon dioxide equivalent, parts per million of carbon dioxide equivalent concentration, a percentage reduction from a specified baseline year or by a nominated year, or in terms of limiting global climate change to below a specific temperature, such as a 2 degree increase over pre-industrial.

future greenhouse warming Tobias Friedrich,1*AxelTimmermann,1 Michelle Tigchelaar, 2 Oliver Elison Timm, 3 Andrey Ganopolski4 Global mean surface temperatures are rising in response to anthropogenic greenhouse gas emissions.

The mag-nitude of this warming at equilibrium for a given radiative forcing—referred to as specific equilibrium climateCited by: The Spectral Nature of Stratospheric Temperature Adjustment and its Application to Halocarbon Radiative Forcing K. Shine1 and G. Myhre2 1Department of Meteorology, University of Reading, Reading, UK, 2CICERO, Oslo, Norway Abstract Stratospheric temperature adjustment (STA) is often a significant component of greenhouse gas radiative forcing (RF), for both the most widely used Author: K.P.

Shine, G. Myhre. Greenhouse gas emissions rise at fastest rate for 30 years planet known as “radiative forcing” due to greenhouse gases such as CO2 rose by more than a .