InSituMatched/README.md

# InSituMatched

The released InSituMatched dataset is divided by in-situ network and data
split. Each file contains the same arrays and dimensions, but the number of
matched samples differs.

| Subset | Training samples | Testing samples |
|---|---:|---:|
| ABoVE | 48 | 12 |
| AmeriFlux | 67 | 18 |
| FLUXNET | 68 | 16 |
| ICOS-WW | 9 | 4 |
| Multiple-network sites | 58 | 16 |

## Files

- `above/train/InSituMatched_above_train.npz`
- `above/test/InSituMatched_above_test.npz`
- `ameriflux/train/InSituMatched_ameriflux_train.npz`
- `ameriflux/test/InSituMatched_ameriflux_test.npz`
- `fluxnet/train/InSituMatched_fluxnet_train.npz`
- `fluxnet/test/InSituMatched_fluxnet_test.npz`
- `icos_ww/train/InSituMatched_icos-ww_train.npz`
- `icos_ww/test/InSituMatched_icos-ww_test.npz`
- `multiple/train/InSituMatched_multiple_train.npz`
- `multiple/test/InSituMatched_multiple_test.npz`

## Variables

- `ed_simulation_x` — monthly ED input features at matched in-situ locations
- `ed_simulation_y` — age-specific ED simulation targets
- `observed_y` — in-situ GPP, RECO, and NEE observations
- `lidar_age_weight_fraction` — LiDAR-derived forest-age fractions
- `esa_cci_bl_fraction` — annual ESA CCI broadleaf PFT fractions
- `esa_cci_nl_fraction` — annual ESA CCI needleleaf PFT fractions
- `esa_cci_gs_fraction` — annual ESA CCI grass-and-shrub PFT fractions

The `multiple` subset contains sites occurring in more than one in-situ
network.

All released arrays use sample-first orientation.

Detailed dimensions, site-index metadata, and normalization statistics are
provided in:

- `../metadata/dimension_definitions.md`
- `../metadata/insitu_site_metadata.csv`
- `../metadata/normalization_statistics.npz`