Data Description

The E3SM data is freely available through the Earth System Grid Federation (ESGF) distributed archives, which also is an official archive to hold CMIP6 (Coupled Model Intercomparison Phase 6) data. E3SM is participating in some of the CMIP6 experiments, namely:  CMIP Diagnostic, Evaluation and Characterization of Klima (DECK) experiments as well as CMIP6 historical simulations and future scenarios ssp585.

All E3SM data is released to the public by publishing to ESGF archives. By default, all the data is published in E3SM project on ESGF in the E3SM output format both on the native grid and some data regridded to standard Cartesian grid. Additionally, if a simulation follows the CMIP6 protocol, than that data is re-formatted and also published to the ESGF in CMIP6 project space. This data is regridded to the CMIP6 requested grid and it is CMOR-ized (formatted with Climate Model Output Rewriter, CMIP6 endorsed software ) to meet the stringent CMIP6 data format and metadata requirements.

Search Experiment options to look for a specific simulations:

• piControl – for the lower res CMIP6 DECK simulation
• 1950-control  – for the high resolution HiResMIP-like simulation
• etc.

You can also search data by simulations belonging to the Science Driver:

• Water Cycle
• BGC
• Cryosphere

• atmos – for atmosphere component related data
• land – for the land and mosart components related data
• ocean – for ocean component related data
• river – for river component related data
• sea-ice – for the sea ice component related data

Several E3SM model versions can be chosen:

• E3SM v1.0  – shown in options as “1 0”   (watercycle v1 data)
• E3SM v1.1  –  shown as “1 1”    (bgc CTC v1 data)
• E3SM v1.1_ECA –  shown as “1 1 ECA”  (bgc ECA experimental v1)
• E3SM v1.2  –  shown as “1 2”  (cryosphere v1 )
• etc.

The Regridding search options enable to choose data on native grid or regridded

• native  – this is the grid that a component is using in the simulation, it is different for different components
• 180×360 – data regridded to 180×360 lon-lat uniform grid
• etc.

The Time Frequency lets one select data from several different time frequencies:

• 3hr – three hourly
• 6hr – sic hourly
• day – daily
• mon – monthly
• monClim – monthly climatologies
• etc.

The Data Type options enables selection of several types of files:

• climo  – for climatologies
• model-output  – for raw model output
• time-series  – time-series of a particular variable for all simulated times
• mapping – mapping ocean file used in simulation
• etc.

The Period enables selection of the simulated years, as in:

• Perpetual 1850 – for the lower res CMIP6 DECK simulation
• Perpetual 1950 – for the high resolution HiResMIP-like simulation
• 1850-2014  — simulated years range
• etc.

The atmosphere and land components grids for those simulations are:

• 0 25deg – for the high resolution HiResMIP-like simulation
• 1deg – for the lower res CMIP6 DECK simulation

The ocean and sea ice components grids are variable:

• 18-6km – for the high resolution HiResMIP-like simulation
• 60-30km – for the lower res CMIP6 DECK simulation