metadata
license: cc-by-4.0
pretty_name: jax-gcm boundary conditions and emissions
tags:
- climate
- atmospheric-science
- emissions
- boundary-conditions
jax-gcm boundary conditions and emissions
Input data for jax-gcm
(jcm), a fully differentiable atmospheric GCM in JAX. Two tiers:
products/ — grid-independent source products
| store | contents | source |
|---|---|---|
ceds_anthro.zarr |
anthropogenic SO2/BC/OC/NH3 flux, sector-summed, 0.5°, monthly 1850–2023 + PI (1850–59) / PD (2005–14) climatologies | CEDS-CMIP-2025-04-18 (input4MIPs CMIP7) |
bb4cmip7.zarr |
open-burning SO2/BC/OC/NH3 flux, 0.25°, monthly 1850–2023 + PI/PD climatologies | DRES-CMIP-BB4CMIP7-2-0 |
era5_land_climo_2005-2014_0p25.nc |
skin/soil temperature, 3-layer soil water, snow depth, albedo, land-sea mask, 0.25° | ERA5 (NCAR RDA d633001) |
sso/sso_gmted2010_*.nc |
Lott & Miller (1997) subgrid-orography statistics from the 30″ GMTED2010 DEM | USGS GMTED2010 |
All fluxes are kg m⁻² s⁻¹. Regridding always starts from these — never from an already-regridded bundle.
bundles/ — per-grid, ready for the model
For each grid (t63 96×192, t106 160×320 Gaussian; ne30pg3
native columns), the files jcm.Model reads directly:
terrain.nc— orography + land-sea mask + six SSO fields (jcm-canonical layout)forcing_{pi,pd}.nc— 12-month SST/sea-ice (PCMDI-AMIP-1-1-10) + ERA5 land-surface climatology. PI SST/ice is the 1870–1879 mean, the earliest observed decade — no observational 1850 SST exists.emissions_{pi,pd}.nc— per-super-sector surface flux (surface_combustion,biomass_burning) × (SO2, BC, OC)dms.nc,dust.nc— Lana et al. (2011) seawater DMS; CAM dust erodibility<grid>_l{47,95}/ozone_{pi,pd}.nc— FZJ-CMIP-ozone-1-0 pre-interpolated to the ECHAM hybrid levels<grid>_l{47,95}/oxidants_{1850,2014}.nc— CAM OH/NO3/O3/H2O2 (L26 source, clamped above the CAM lid)
Usage
from jcm.data.remote import bundle_file
terrain = bundle_file("t63", "terrain.nc")
ozone = bundle_file("t63_l47", "ozone_pd.nc")
registry.json lists every file with size and sha256.
Licences and provenance
Emissions, ozone and SST/sea-ice derive from CMIP7 input4MIPs products (CC-BY-4.0). ERA5 derivatives are provided under the Copernicus licence terms. GMTED2010 is a public-domain USGS product. See each file's attributes for the exact source path and processing history.