Unpublished CMIP7.ScenarioMIP.CAS.CAS-ESM2-1-CSM.scen7-vl (v1)

General Information


Name CMIP7.ScenarioMIP.CAS.CAS-ESM2-1-CSM.scen7-vl
Abstract Project: CMIP7

Future scenario experiments. Exploration of the future climate under a (selected) range of possible boundary conditions. In CMIP7, the priority tier for experiments is conditional on whether you are doing emissions- or concentration-driven simulations. There is no way to express this in the CVs (nor time to implement something to handle this conditionality). This means that, for your particular situation, some experiments may be at a lower tier than is listed in the CVs. For example, the `vl` scenario is tier 1 for concentration-driven models and tier 2 for emissions-driven models. However, in the CVs, we have used the highest priority tier (across all the possible conditionalities). Hence `vl` is listed as tier 1 in the CVs (even though it is actually tier 2 for emissions-driven models).For details, please see the full description in the ScenarioMIP description papers.

Produced by: Chinese Academy of Sciences (Using Model/Source: CAS-ESM2-1-CSM with Experiment scen7-vl)

The Chinese Academy of Sciences Earth System Model version 2.1 Climate System Model (CAS-ESM2-1-CSM) is a coupled climate system configuration of the CAS-ESM family, developed at the Institute of Atmospheric Physics, Chinese Academy of Sciences. It builds on the CAS-ESM2 framework developed and applied for CMIP6, with a coupled representation of the atmosphere, land surface, ocean, sea ice, atmospheric chemistry, and aerosols. CAS-ESM2-1-CSM dynamically simulates six component domains. The atmospheric component is IAP-AGCM5.0, the land-surface component is CoLM2014, the ocean component is LICOM2.0, and the sea-ice component is CICE4.0. Atmospheric chemistry is represented by CAM5-Trop-MAM3, while aerosols are represented by CAM5-MAM3. These components form a coupled modelling system for simulating the physical climate system and its interactions with atmospheric composition and aerosols across a wide range of temporal and spatial scales. No scientific component domain is classified as a prescribed component in this configuration. Ocean biogeochemistry and land ice are omitted. CAS-ESM2-1-CSM is therefore designed primarily for coupled climate-system simulations, including studies of climate mean state, variability, historical climate change, climate sensitivity, and future climate change and projection, while retaining interactive representations of atmospheric chemistry and aerosols.

Experiment: CMIP7 ScenarioMIP Very Low emission scenario - The Very Low emission scenario is designed to keep the temperature level as low as plausible given feasibility constraints. This scenario is thus relevant for the low end of the Paris range (staying as close as plausible to 1.5C at the time of peak warming and limiting warming to 1.5C by the end of the century). Run with prescribed carbon dioxide concentrations (for prescribed carbon dioxide emissions, see `esm-scen7-vl`).

CMIP7 is a project of the World Climate Research Programme (WCRP), providing climate projections to understand past, present, and future climate changes. It is part of the WCRP Earth System Modelling and Observations (ESMO) Core Project, which was formed to coordinate all modelling, data, and observation activities across WCRP and its key partners. Further details can be found here and in the CMIP7 Guidance pages. Parties using CMIP data should ensure they have read the WCRP CMIP (2026) CMIP Data Disclaimer.

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Rights Creative Commons Attribution 4.0 International License (CC-BY-4.0)
License CC-BY-4.0; CMIP7 data produced by CAS is licensed under a Creative Commons Attribution 4.0 International License (https://creativecommons.org/licenses/by/4.0). Consult https://wcrp-cmip.github.io/cmip7-guidance/docs/CMIP7/Guidance_for_users/#2-terms-of-use-and-citations-requirements for terms of use governing CMIP7 output, including citation requirements and proper acknowledgment. The data producers and data providers make no warranty, either express or implied, including, but not limited to, warranties of merchantability and fitness for a particular purpose. All liabilities arising from the supply of the information (including any liability arising in negligence) are excluded to the fullest extent permitted by law.

Note: This citation is currently unpublished. DOI and referencing information will appear here once the citation is published.


CMIP7 Facets


Activity ScenarioMIP
Experiment scen7-vl
Institution CAS
Project CMIP7
Source CAS-ESM2-1-CSM

Data Access

This citation record represents all ESGF-NG data corresponding to the search facets above. See the abstract for details on any limitations of coverage. The data can be discovered using either the ESGF STAC API directly or by viewing the Metagrid Search interface to ESGF-NG.


Python Client

Interfacing with the STAC API can be done programatically in python using the pystac client or similar. Below is an example code snippet to fetch items to which this Citation record applies.


from pystac.client import Client

cli = Client.open("https://search.east.esgf.io")
cli.search(
   collections=["CMIP7"],
   query=[
      "cmip7:experiment_id=scen7-vl",
      "cmip7:activity_id=ScenarioMIP",
      "cmip7:source_id=CAS-ESM2-1-CSM",
      "cmip7:institution_id=CAS",
])
                    

Responsible Parties


Name Role
Citation Support Primary

Funding Streams


Stream Name Affiliation

Affiliated Institutions


Institution Country
Chinese Academy of Sciences China
Cites van Vuuren, D., O'Neill, B., Tebaldi, C., Chini, L., Friedlingstein, P., Hasegawa, T., Riahi, K., Sanderson, B., Govindasamy, B., Bauer, N., Eyring, V., Fall, C., Frieler, K., Gidden, M., Gohar, L., Jones, A., King, A., Knutti, R., Kriegler, E., et al. (2025) . The Scenario Model Intercomparison Project for CMIP7 (ScenarioMIP-CMIP7). https://doi.org/10.5194/egusphere-2024-3765.
Cites Zhang, H., Zhang, M., Jin, J., Fei, K., Ji, D., Wu, C., Zhu, J., He, J., Chai, Z., Xie, J., Dong, X., Zhang, D., Bi, X., Cao, H., Chen, H., Chen, K., Chen, X., Gao, X., Hao, H., et al. (2020) . Description and Climate Simulation Performance of CAS-ESM Version 2. Journal of Advances in Modeling Earth Systems, 12(12). Portico. https://doi.org/10.1029/2020ms002210 https://doi.org/10.1029/2020MS002210.