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exp_design:degla_t2 [2019/03/01 12:50]
jypeter [Paleorecords to use for model-data comparisons] Added a sentence about md5sum |
exp_design:degla_t2 [2019/03/01 13:00]
jypeter [Transient Penultimate Deglaciation (140-127 ka)] Added some md5sum for Berger and fwf data |
| | PMIP4 name | <wrap em>PDGv1</wrap> | | | PMIP4 name | <wrap em>PDGv1</wrap> | |
| | Initial conditions (140 ka) | Recommended: PDGv1-PGMspin \\ See above for details. The method must be documented, including information on the state of spinup | | | Initial conditions (140 ka) | Recommended: PDGv1-PGMspin \\ See above for details. The method must be documented, including information on the state of spinup | |
| | Astronomical parameters | Transient, as per [[#References_cited|Berger (1978)]]\\ [ [[ftp://ftp.ncdc.noaa.gov/pub/data/paleo/climate_forcing/orbital_variations/insolation//bein1.dat|Access to data]] **&** [[ftp://ftp.ncdc.noaa.gov/pub/data/paleo/climate_forcing/orbital_variations/insolation//readme_insolation.txt|README !]] ]| | | Astronomical parameters | Transient, as per [[#References_cited|Berger (1978)]]\\ [ [[ftp://ftp.ncdc.noaa.gov/pub/data/paleo/climate_forcing/orbital_variations/insolation//bein1.dat|Access to data]] **&** [[ftp://ftp.ncdc.noaa.gov/pub/data/paleo/climate_forcing/orbital_variations/insolation//readme_insolation.txt|README !]] ] (''md5sum bein1.dat'' => ''726dfae36b33ae248bdb94f59387a19f'') | |
| | Solar constant | 1361.0 ± 0.51365 W m<sup>-2</sup> | | | Solar constant | 1361.0 ± 0.51365 W m<sup>-2</sup> | |
| | Trace gases | **CO<sub>2</sub>** = Transient, as per [[#References_cited| the spline of Koehler et al. (2017)]]: [ [[https://doi.pangaea.de/10.1594/PANGAEA.871273|Access to data]] ] \\ **CH<sub>4</sub>** = Transient, as per [[#References_cited| the spline of Koehler et al. (2017)]]: [ [[https://doi.pangaea.de/10.1594/PANGAEA.871273|Access to data]] ] \\ **N<sub>2</sub>O** = Linear increase from 201 ppb at 140 ka to 218.74 ppb at 134.5 ka\\ then transient, as per [[#References_cited| the spline of Koehler et al. (2017)]]: [ [[https://doi.pangaea.de/10.1594/PANGAEA.871273|Access to data]] ]\\ **CFC** = 0 \\ **O<sub>3</sub>** = Preindustrial (e.g. 10 DU) | | | Trace gases | **CO<sub>2</sub>** = Transient, as per [[#References_cited| the spline of Koehler et al. (2017)]]: [ [[https://doi.pangaea.de/10.1594/PANGAEA.871273|Access to data]] ] \\ **CH<sub>4</sub>** = Transient, as per [[#References_cited| the spline of Koehler et al. (2017)]]: [ [[https://doi.pangaea.de/10.1594/PANGAEA.871273|Access to data]] ] \\ **N<sub>2</sub>O** = Linear increase from 201 ppb at 140 ka to 218.74 ppb at 134.5 ka\\ then transient, as per [[#References_cited| the spline of Koehler et al. (2017)]]: [ [[https://doi.pangaea.de/10.1594/PANGAEA.871273|Access to data]] ]\\ **CFC** = 0 \\ **O<sub>3</sub>** = Preindustrial (e.g. 10 DU) | |
| | Bathymetry | Keep consistent with the coastlines, and otherwise use either: \\ - Data associated with the ice sheet; it is optional how often the bathymetry is updated \\ - Preindustrial bathymetry | | | Bathymetry | Keep consistent with the coastlines, and otherwise use either: \\ - Data associated with the ice sheet; it is optional how often the bathymetry is updated \\ - Preindustrial bathymetry | |
| | River routing | Ensure that rivers reach the coastline \\ It is recommended (optional) to use one of the following: \\ - Self-consistent paleo-routing described in section 6.2.3 \\ - Preindustrial configuration for the model \\ - Manual/model calculation of river network to match topography | | | River routing | Ensure that rivers reach the coastline \\ It is recommended (optional) to use one of the following: \\ - Self-consistent paleo-routing described in section 6.2.3 \\ - Preindustrial configuration for the model \\ - Manual/model calculation of river network to match topography | |
| | Freshwater fluxes | Recommended North Atlantic option is //fSL// and a constant 0.0135 Sv flux around the Antarctic coast between 140-130 ka \\ [ {{ :exp_design:t2-fwfflux_v190201.txt |Access to data}} ] \\ - //fSL// : meltwater flux based on changes in sea-level \\ - //fIRD// : meltwater flux based on Norwegian Sea and North Atlantic IRD \\ - //fIC// : meltwater flux based on ice-sheet changes \\ - //fSL2// : meltwater flux based on changes in sea-level and triangular input max. 0.15 Sv between 131-128 ka on the Antarctic coast \\ - //fUN// : Globally uniform meltwater input based on sea-level changes | | | Freshwater fluxes | Recommended North Atlantic option is //fSL// and a constant 0.0135 Sv flux around the Antarctic coast between 140-130 ka \\ [ {{ :exp_design:t2-fwfflux_v190201.txt |Access to data}} ] (''md5sum t2-fwfflux_v190201.txt'' => ''5d073eb89df1c884fc654de930840d1b'')\\ - //fSL// : meltwater flux based on changes in sea-level \\ - //fIRD// : meltwater flux based on Norwegian Sea and North Atlantic IRD \\ - //fIC// : meltwater flux based on ice-sheet changes \\ - //fSL2// : meltwater flux based on changes in sea-level and triangular input max. 0.15 Sv between 131-128 ka on the Antarctic coast \\ - //fUN// : Globally uniform meltwater input based on sea-level changes | |
| | Vegetation & land cover \\ Aerosols (dust) | Prescribed preindustrial cover or dynamic vegetation model \\ Prescribed preindustrial distribution or prognostic aerosols | | | Vegetation & land cover \\ Aerosols (dust) | Prescribed preindustrial cover or dynamic vegetation model \\ Prescribed preindustrial distribution or prognostic aerosols | |
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