H2CM - inputs and targets

Dataset description This Zarr archive contains the global‑scale time‐series and static data used to force and constrain H2CM. It is organized into one folder (Zarr group) per variable: Meteorological forcing (daily time series used to force H2CM) Static inputs (time‑invariant geospatial encodings of static data) Model constraints (data that is used to constrain H2CM) Each group stores a regularly gridded array on the same global grid, with coordinate variables for latitude, longitude (and time for the temporally varying fields). All names below correspond to top‑level Zarr groups in the archive. Summary of Zarr groups: Group name Variable Frequency Source product Meteorological forcing prec Precipitation Daily GPCP 1dd v1.2 rn Net surface radiation Daily CERES SYN1deg Ed4A tair 2 m air temperature Daily CRUNCEP v8 vpd Vapor pressure deficit Daily ERA5 co2 Atmospheric CO₂ concentration Daily CAMS Static inputs static (all features) Condensed representation of soil properties, land‑cover, DEM, wetlands – SoilGrids v2, GlobLand30 v1, GTOPO30, Tootchi map Model constraints tws Terrestrial water storage anomaly Monthly GRACE Tellus JPL RL06M v1 fapar Fraction of absorbed PAR (fAPAR) 8‑daily MOD15A2H swe_bc Snow Water Equivalent (bias‑corrected) Monthly GlobSnow v3 et_xbase Evapotranspiration Monthly FLUXCOM‑X‑BASE q_v2 Runoff Monthly GRUN v2 gpp Gross Primary Productivity Monthly FLUXCOM‑X‑BASE nee Net Ecosystem Exchange (monthly) Monthly OCO‑2 v10 MIP nee_iav Net Ecosystem Exchange (interannual variability) Monthly Jena CarboScope cue Mean annual carbon use efficiency (NPP / GPP) Monthly TRENDY v11 Utility variables mask Land grids used for training – grid_area Grid‑cell surface area (m²) – Derived from spherical geometry Additional information For full details on these datasets—including their development, validation, and primary references—please see: Baghirov, Z., Reichstein, M., Kraft, B., Ahrens, B., Körner, M., & Jung, M. (2025). H2CM (v1.0): Hybrid modeling of global water–carbon cycles constrained by atmospheric and land observations. EGUsphere, 2025, 1–33. https://doi.org/10.5194/egusphere-2025-3123 (preprint at https://egusphere.copernicus.org/preprints/2025/egusphere-2025-3123/) Contact If you have any questions about these data, need help getting started, or encounter any bugs or other issues, please don’t hesitate to reach out: GitHub issuesOpen an issue or feature request at the H2CM repository:https://github.com/zavud/h2cm/issues EmailSend us a message at [e-mail]