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Experiments Overview

ACCESS-ESM1.6 participates in multiple World Climate Research Programme (WCRP) CMIP7 endorsed activities. The CMIP7-Input suite provides unified ancillary generation across 7 experiment configurations.

[!TIP] For a bidirectional mapping between CMIP7-Input workflow acronyms and access-esm1.6-configs branch names, see the Naming & Configuration Alignment page.

Supported Experiment Suites

graph TD Suite["CMIP7-Input Cylc Workflow"] --> PI["Pre-Industrial Control (PI)"] Suite --> HI["Historical Transient (HI)"] Suite --> SM["ScenarioMIP Projections (SM)"] Suite --> AM["AMIP Prescribed Boundary (AM)"] Suite --> Carbon["Carbon-Cycle Experiments (EH and ES)"] Suite --> PM["Paleoclimate / PMIP (PM)"] SM --> SM_h["High: scen7-h"] SM --> SM_hl["High-Low: scen7-hl"] SM --> SM_m["Medium: scen7-m"] SM --> SM_vl["Very Low: scen7-vl"]

Experiment Summary Directory

Each experiment summary page provides:

  1. Scientific Overview: Physical forcing scope, base years, and boundary conditions.
  2. Complete Task Roster: An exhaustive tabular catalog of every workflow task required for that experiment, detailing entrypoint scripts, primary input datasets, output types, and deep links into the detailed Forcing Specifications.
  3. Downstream Configuration Integration: Target directories, modified namelist groups, and Git branching rules in ACCESS-NRI/access-esm1.6-configs.
  4. Execution Flow: Cylc dependency graph (DAG) illustrating prerequisite relationships.

Experiment Execution Switches & Selectors

The activation, scenario selection, and downstream branch mapping for all experiments are parameterized centrally in rose-suite.conf.

[!TIP] For an evergreen reference describing all configuration objects, schemas, and semantics without hardcoded current values, see the Suite Configuration & Parameters Reference.

Experiment Suite Suite Toggle Switch Pathway / Scenario Selectors 2150 Extension Controls Downstream Git Branch
Pre-Industrial Control USE_EXP['PI'] N/A N/A GIT_CONFIG_BRANCH_PRE['PI']-GIT_CONFIG_BRANCH_SUF['PI'] (dev-piControl)
Historical USE_EXP['HI'] N/A N/A GIT_CONFIG_BRANCH_PRE['HI']-GIT_CONFIG_BRANCH_SUF['HI'] (dev-historical)
ScenarioMIP USE_EXP['SM'] USE_SCEN['h'], ['hl'], ['m'], ['vl'] EXTEND_SM_AEROSOL, _CO2, _GHG, _NITROGEN, _OZONE, _SOLAR, _VOLCANIC GIT_CONFIG_BRANCH_PRE['SM']-GIT_SM_CONFIG_BRANCH_SUF['<SCEN>'] (pl-scen7-<scen>)
AMIP USE_EXP['AM'] N/A N/A Filesystem Ancillaries (.anc)
Emission-Driven USE_EXP['EH'], USE_EXP['ES'] USE_SCEN (for ES) EXTEND_SM_CO2 Filesystem Ancillaries (.anc)
Paleoclimate / PMIP USE_EXP['PM'] N/A N/A Filesystem Ancillaries (.anc)
Experiment Summary Page Acronym Tasks Description
Pre-Industrial Control PI 12 1850 perpetual equilibrium control run
Historical HI 12 1850–2023 transient historical climate run
ScenarioMIP SM 46 Future projections across h, hl, m, and vl (2022–2100 & 2022–2150)
AMIP AM 7 Prescribed observed SST and sea-ice concentration runs
Emission-Driven Experiments EH & ES 5 Carbon-cycle interactive CO2 flux experiments
Paleoclimate / PMIP PM 2 Climatological 1850–1870 equilibrium ozone forcing