ModE-Sim - A medium size AGCM ensemble to study climate variability during the modern era (1420 to 2009): Set 1420-2

ModE-Sim (short for Modern Era Simulations) is a medium-size ensemble of model simulations using the ECHAM6 atmosphere general circulation model (model version 6.3.5p2, doi:10.17617/2.1810480). Its setup is based on the PMIP4 experiments, but uses a forced AGCM rather than a fully coupled model.

ModE-Sim was originally designed to form the a-priori state for a climate reconstruction (Modern Era Reanalysis, ModE-RA, to be found as separate experiment within this WDC project) that uses an offline data assimilation technique to combine the output of ModE-Sim with historical climate information. However, beyond its original purpose ModE-Sim on its own can be used as a tool to study climate variability, providing a high number of posible climate states that are physically plausible under the given forcings and boundary conditions. This might include, e.g. the separation of internal variability from the response to externally forced signals, understanding of teleconnection patterns, or the study of extreme events.

The ensemble uses observed/reconstructed forcings and boundary conditions, while accounting in uncertainties in these. For 1420 to 1850 we provide a 60 member ensemble grouped in three subsets. The subset 1420-2 provided in this dataset group has 20 members and uses a 20-member ensemble of perturbed volcanic forcings from the easy volcanic aerosol (EVA) model to account for uncertainties in the strength and the timing of volcanic eruptions. As ocean boundary condition 20 different realizations of SST reconstructions were used and for sea ice analogues were picked from the HadISST2 sea ice, based on the reconstructed SST fields.

Citation proposal
(2023) . ModE-Sim - A medium size AGCM ensemble to study climate variability during the modern era (1420 to 2009): Set 1420-2. https://gdk.gdi-de.org/geonetwork/srv/api/records/wdc-climate.de:3970251

Simple

Date ( Publication ): 2023-04-12

Edition: 1

Identifier: ModE-Sim_s14202

Identifier: doi:10.26050/WDCC/ModE-Sim_s14202

Principal investigator

University of Bern - Dr. Ralf Hand

Contact instructions: Email: ralf.hand@giub.unibe.ch

Website: not filled

Author

University of Bern - Dr. Ralf Hand

Contact instructions: Email: ralf.hand@giub.unibe.ch

Website: not filled

Author

University of Bern - Prof. Dr. Stefan Brönnimann

Contact instructions: Email: stefan.broennimann@giub.unibe.ch

Website: not filled

Author

University of Bern - Dr. Eric Samakinwa

Contact instructions: Email: eric.samakinwa@giub.unibe.ch

Website: not filled

Author

University of Bern - Laura Lipfert

Contact instructions: Email: laura.hoevel@giub.unibe.ch

Website: not filled

Publisher

WDC Climate at DKRZ

Point of contact

University of Bern - Dr. Ralf Hand

Website: not filled

Point of contact

University of Bern - Prof. Dr. Stefan Brönnimann

Website: not filled

Name: NetCDF

Keywords

ECHAM6

Keywords

ECHAM6-3-LR

Keywords

ECHAM6.3

Keywords

atmospheric model

Keywords

climate simulation

Keywords

ensemble runs

Keywords

forcing dataset

Keywords

historical run

Keywords

large ensemble

Keywords

model data

Keywords

model-output

Keywords

volcanic forcing

Use limitation: CC BY 4.0: Creative Commons Attribution 4.0 International (CC BY 4.0) https://creativecommons.org/licenses/by/4.0/

Metadata language: eng; USA

Supplemental Information: info:eu-repo/grantAgreement/EC/H2020/787574/BE//PA Palaeoreanalysis To Understand Decadal Climate Variability (PALAEO-RA)

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