wiki:ConcentrationsGHG

Les concentrations de gaz à effet de serre utilisés par les simulations

RCPs 4.5 showing how diffrent GHG concentrations Behave from 1765 to 2500

RCPs 8.5 showing how diffrent GHG concentrations Behave from 1765 to 2500

CO2 Concentration from 1765 to 2500 for different RCPs

CH4 Concentration from 1765 to 2500 for different RCPs

We foused on

Binary filesRCPs
RCP3PD_MIDYEAR_CONCENTRATIONS.DAT3
RCP45_MIDYEAR_CONCENTRATIONS.DAT4.5
RCP6_MIDYEAR_CONCENTRATIONS.DAT6
RCP85_MIDYEAR_CONCENTRATIONS.DAT8.5

Original File description

ColumnChemical SpeciesDescription
1CO2EQCO2 equivalence concentrations using CO2 radiative forcing relationship Q = 3.71/ln(2)*ln(C/278), aggregating all anthropogenic forcings, including greenhouse gases listed below (i.e. columns 3,4,5 and 8-35), and aerosols, trop. ozone etc. (not listed below)
2KYOTO-CO2EQAs column 1, but only aggregating greenhouse gases controlled under the Kyoto Protocol (columns 3,4,5 and 8-19)
3CO2Atmospheric CO2 concentrations
4CH4Atmospheric CH4 concentrations
5N2OAtmospheric N2O concentrations
6FGASSUMHFC134AEQAll flourinated gases controlled under the Kyoto Protocol, i.e. HFCs, PFCs, and SF6 (columns 8-19) expressed as HFC134a equivalence concentrations
7MHALOSUMCFC12EQAll flourinated gases controlled under the Montreal Protocol, i.e. CFCs, HCFCs, Halons, CCl4, CH3Br, CH3Cl (columns 20-35) expressed as CFC-12 equivalence concentrations
8-19Flourinated Gases controlled under the Kyoto Protocol
20-35Ozone Depleting Substances controlled under the Montreal Protocol

Available Text files description at IPSL after extraction and processing

ColumnChemical SpeciesUnit
3CO2ppm
4CH4ppb
5N2Oppb
6FGASSUMHFC134AEQppt
7MHALOSUMCFC12EQppt
11HFC23ppt
20CFC11ppt
21CFC12ppt

A supplementary species was calculated

CMIP5 files contain HFC134a_equivalent. But we interested by obtaining CFC11_equivalent.

Thus, CFC11_equivalent is calculated given the following equation:

CFC-11_equivalent = HFC134a_equivalent × 0.64

Greenhouse gases concentrations from 1765 to 2500 for the various RCPs

RCP3RCP45RCP6RCP85
CO2RCP3_CO2_1765_2500.txtRCP45_CO2_1765_2500.txtRCP6_CO2_1765_2500.txtRCP85_CO2_1765_2500.txt
CH4RCP3_CH4_1765_2500.txtRCP45_CH4_1765_2500.txtRCP6_CH4_1765_2500.txtRCP85_CH4_1765_2500.txt
N2ORCP3_N2O_1765_2500.txtRCP45_N2O_1765_2500.txtRCP6_N2O_1765_2500.txtRCP85_N2O_1765_2500.txt
FGASSUMHFC134AEQRCP3_FGASSUMHFC134AEQ_1765_2500.txtRCP45_FGASSUMHFC134AEQ_1765_2500.txtRCP6_FGASSUMHFC134AEQ_1765_2500.txtRCP85_FGASSUMHFC134AEQ_1765_2500.txt
MHALOSUMCFC12EQRCP3_MHALOSUMCFC12EQ_1765_2500.txtRCP45_MHALOSUMCFC12EQ_1765_2500.txtRCP6_MHALOSUMCFC12EQ_1765_2500.txtRCP85_MHALOSUMCFC12EQ_1765_2500.txt
HFC23RCP3_HFC23_1765_2500.txtRCP45_HFC23_1765_2500.txtRCP6_HFC23_1765_2500.txtRCP85_HFC23_1765_2500.txt
CFC11RCP3_CFC11_1765_2500.txtRCP45_CFC11_1765_2500.txtRCP6_CFC11_1765_2500.txtRCP85_CFC11_1765_2500.txt
CFC12RCP3_CFC12_1765_2500.txtRCP45_CFC12_1765_2500.txtRCP6_CFC12_1765_2500.txtRCP85_CFC12_1765_2500.txt
CFC11EQRCP3_CFC11EQ_1765_2500.txtRCP45_CFC11EQ_1765_2500.txtRCP6_CFC11EQ_1765_2500.txtRCP85_CFC11EQ_1765_2500.txt

Details on RCPs Database

http://www.iiasa.ac.at/web-apps/tnt/RcpDb/dsd?Action=htmlpage&page=welcome

CMIP5 recommended data is provided in a separate download section further below (available upon registration). The CMIP5 data includes: 1) historical atmospheric concentrations as well as concentrations for the RCPs (2005-2100) and their extension to 2300 (ECPs). In total, atmospheric concentration of the following gases are provided: CO2, CH4, N2O, all flourinated gases controlled under the Kyoto Protocol (HFCs, PFCs, and SF6), and ozone depleting substances controlled under the Montreal Protocol ( CFCs, HCFCs, Halons, CCl4, CH3Br, CH3Cl). 2) historical emissions data (1850 - 2000) as well as emissions for the RCPs (2000-2100). In total emissions of the following gases are provided: CH4, SO2, NOx, CO, NH3, as well as of BC, OC and VOC. Other additional species such as C2H4O (acetaldehyde), C2H5OH (ethanol), C2H6S (dimethyl sulphide), C3H6O (acetone), etc. are available only for historical biomass burning emissions (see below). 3) historical aerosols data (1850 - 2000) on the following species: sulfate (SO4), ammonium nitrate (NH4NO3), hydrophobic black carbon (CB1), hydrophilic black carbon (CB2), hydrophobic organic carbon (CB1), hydrophilic organic carbon (CB2), secondary organic aerosols (SOA), dust (DST01-04, small to large sizes)) and sea-salt SSLT01-04). In addition, temperature (T) and surface pressure (PS) is provided to enable unit conversion (all aerosol are in kg/kg, dry mass). 4) historical and RCP land-cover projections.

We’ve downloaded a number of binaries from

http://www.pik-potsdam.de/~mmalte/rcps/index.htm#Download

RCP45SCP45TO3PD_MIDYEAR_CONCENTRATIONS.DAT RCP_CONTROLRUN_CONCENTRATIONS.DAT RCP45SCP45TO3PD_EMISSIONS.DAT RCP3PD_MIDYEAR_RADFORCING.DAT RCP85_MIDYEAR_RADFORCING.DAT RCP6_MIDYEAR_RADFORCING.DAT RCP6SCP6TO45_MIDYEAR_RADFORCING.DAT RCP45SCP45TO3PD_MIDYEAR_RADFORCING.DAT RCP45_MIDYEAR_CONCENTRATIONS.DAT RCP6_MIDYEAR_CONCENTRATIONS.DAT RCP6_EMISSIONS.DAT RCP6SCP6TO45_MIDYEAR_CONCENTRATIONS.DAT RCP6SCP6TO45_EMISSIONS.DAT RCP85_EMISSIONS.DAT RCP85_MIDYEAR_CONCENTRATIONS.DAT RCP45_EMISSIONS.DAT RCP3PD_MIDYEAR_CONCENTRATIONS.DAT RCP3PD_EMISSIONS.DAT 20THCENTURY_MIDYEAR_RADFORCING.DAT 20THCENTURY_MIDYEAR_CONCENTRATIONS.DAT 20THCENTURY_EMISSIONS.DAT RCP45_MIDYEAR_RADFORCING.DAT

Availability at IPSL

RCPs are available and stored on the common account IGCM/STORAGE/BC/ATM/IPCC_AR5/RCPs/

http://www.pik-potsdam.de/~mmalte/rcps/20c3m.htm

http://www.iiasa.ac.at/web-apps/tnt/RcpDb/dsd?Action=htmlpage&page=download

ftp://ftp-ipcc.fz-juelich.de/pub/emissions/gridded_netcdf/tarfiles/

Last modified 6 years ago Last modified on 05/30/11 12:58:50

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