Annex
1. LUH dataset structure
The LUH dataset v3.1.1 is distributed at 0.25° resolution, covers the period 850-2024 on the yearly basis, and is represented by 12 classes with 1 fixed layer (ice and water) as shown below:
| N | LUH CLASS | Description |
| 1 | primf | forested primary land |
| 2 | primn | non-forested primary land |
| 3 | secdf | potentially forested secondary land |
| 4 | secdn | potentially non-forested secondary land |
| 5 | urban | urban land |
| 6 | c3ann | C3 annual crops |
| 7 | c4ann | C4 annual crops |
| 8 | c3per | C3 perennial crops |
| 9 | c4per | C4 perennial crops |
| 10 | c3nfx | C3 nitrogen-fixing crops |
| 11 | pastr | managed pasture |
| 12 | range | rangeland |
| 13 | icwtr | ice and water (fixed) |
2. ESA CCI LC dataset structure
The ESA CCI LC dataset v2.0.82 is distributed at 300m resolution, covers the period 1992-2020 on the yearly basis, and is represented by 17 generic PFTs shown below:
| N | Generic PFT | Description |
| 1 | TREE-BE | broadleaf evergreen trees |
| 2 | TREE-BD | broadleaf deciduous trees |
| 3 | TREE-NE | needleleaf evergreen trees |
| 4 | TREE-ND | needleleaf deciduous trees |
| 5 | SHRUB-BE | broadleaf evergreen shrubs |
| 6 | SHRUB-BD | broadleaf deciduous shrubs |
| 7 | SHRUB-NE | needleleaf evergreen shrubs |
| 8 | SHRUB-ND | needleleaf deciduous shrubs |
| 9 | GRASS-NAT-C3 | C3 natural grass |
| 10 | GRASS-NAT-C4 | C4 natural grass |
| 11 | GRASS-MAN-C3 | C3 managed grass |
| 12 | GRASS-MAN-C4 | C4 managed grass |
| 13 | BARE | bare soil |
| 14 | BUILT | urban land |
| 15 | SNOWICE | snow and ice |
| 16 | WATER-INLAND | inland water |
| 17 | WATER-OCEAN | ocean water |
The ESA CCI LC dataset v2.0.8 contains 15 generic PFTs without the split between C3 and C4 grasses (GRASS-NAT instead of GRASS-NAT-C3 and GRASS-NAT-C4; GRASS-MAN instead of GRASS-MAN-C3 and GRASS-MAN-C4).
3. Merged ESA+LUH dataset structure
The merged ESA+LUH dataset is distributed at 0.25° resolution (LUH native resolution), and is represented by 18 generic PFTs shown below:
| N | Generic PFT | Description |
| 1 | TREE-BE | broadleaf evergreen trees |
| 2 | TREE-BD | broadleaf deciduous trees |
| 3 | TREE-NE | needleleaf evergreen trees |
| 4 | TREE-ND | needleleaf deciduous trees |
| 5 | SHRUB-BE | broadleaf evergreen shrubs |
| 6 | SHRUB-BD | broadleaf deciduous shrubs |
| 7 | SHRUB-NE | needleleaf evergreen shrubs |
| 8 | SHRUB-ND | needleleaf deciduous shrubs |
| 9 | GRASS-C3 | C3 grass |
| 10 | GRASS-C4 | C4 grass |
| 11 | CROP-C3 | C3 crops |
| 12 | CROP-C4 | C4 crops |
| 13 | BARE | bare soil |
| 14 | BUILT | urban land |
| 15 | SNOWICE | snow and ice |
| 16 | WATER-INLAND | inland water |
| 17 | WATER-OCEAN | ocean water |
| 18 | PASTURE | pasture |
4. Cross-walking table transforming 38 ESA CCI classes into generic PFTs
The ESA CCI LC dataset v2.0.7 (this version number is used for years 1992-2015 and v2.1.1 is used for years 2016-2022) is represented by 38 ESA CCI classes. Transformation into generic PFTs is done with the following cross-walking table involving the use of additional Köppen-Geiger map for climate classification:
| N | CCI CLASS | KG CLASS | TREES | SHRUBS | GRASSES | Bare Soil | Water | Snow and Ice | Urban | No Data | |||||||
| TrBrEv | TrBrDe | TrNeEv | TrNeDe | ShBrEv | ShBrDe | ShNeEv | ShNeDe | NatGr | Crops | ||||||||
| 1 | 0 no data |
100 | |||||||||||||||
| 2 | 10 cropland, rainfed |
10 | 90 | ||||||||||||||
| 3 | 11 cropland, rainfed, herbaceous cover |
10 | 90 | ||||||||||||||
| 4 | 12 cropland, rainfed, tree or shrub cover |
70 | 30 | ||||||||||||||
| 5 | 20 cropland, irrigated or post-flooding |
10 | 90 | ||||||||||||||
| 6 | 30 mosaic cropland (>50%) / natural vegetation (tree, shrub, herbaceous cover) (<50%) |
5 | 5 | 5 | 5 | 5 | 15 | 60 | |||||||||
| 7 | 40 mosaic natural vegetation (tree, shrub, herbaceous cover) (>50%) / cropland (<50%) |
7.5 | 7.5 | 10 | 15 | 10 | 30 | 20 | |||||||||
| 8 | 50 tree cover, broadleaved, evergreen, closed to open (>15%) |
90 | 5 | 5 | |||||||||||||
| 9 | 60 tree cover, broadleaved, deciduous, closed to open (>15%) |
50 | 20 | 30 | |||||||||||||
| 10 | 61 tree cover, broadleaved, deciduous, closed (>40%) |
70 | 15 | 15 | |||||||||||||
| 11 | 62 tree cover, broadleaved, deciduous, open (15-40%) |
30 | 25 | 45 | |||||||||||||
| 12 | 70 tree cover, needleleaved, evergreen, closed to open (>15%) |
70 | 5 | 5 | 5 | 15 | |||||||||||
| 13 | 71 tree cover, needleleaved, evergreen, closed (>40%) |
70 | 5 | 5 | 5 | 15 | |||||||||||
| 14 | 72 tree cover, needleleaved, evergreen, open (15-40%) |
30 | 25 | 45 | |||||||||||||
| 15 | 80 tree cover, needleleaved, deciduous, closed to open (>15%) |
50 | 2.5 | 2.5 | 2.5 | 12.5 | 30 | ||||||||||
| 16 | 81 tree cover, needleleaved, deciduous, closed (>40%) |
70 | 5 | 5 | 5 | 15 | |||||||||||
| 17 | 82 tree cover, needleleaved, deciduous, open (15-40%) |
30 | 25 | 45 | |||||||||||||
| 18 | 90 tree cover, mixed leaf type (broadleaved and needleleaved) |
30 | 20 | 10 | 5 | 5 | 5 | 25 | |||||||||
| 19 | 100 mosaic tree and shrub (>50%) / herbaceous cover (<50%) |
10 | 20 | 5 | 5 | 5 | 10 | 5 | 40 | ||||||||
| 20 | 110 mosaic herbaceous cover (>50%) / tree and shrub (<50%) |
5 | 10 | 5 | 5 | 10 | 5 | 60 | |||||||||
| 21 | 120 shrubland |
1 Tropical |
15 | 30 | 15 | 40 | |||||||||||
| 21 Temperate Warm |
15 | 30 | 15 | 40 | |||||||||||||
| 22 Temperate Cool |
15 | 30 | 15 | 40 | |||||||||||||
| 31 Boreal Warm |
20 | 40 | 20 | 20 | |||||||||||||
| 32 Boreal Cool |
20 | 40 | 20 | 20 | |||||||||||||
| 22 | 121 shrubland, evergreen |
1 Tropical |
30 | 30 | 40 | ||||||||||||
| 21 Temperate Warm |
30 | 30 | 40 | ||||||||||||||
| 22 Temperate Cool |
30 | 30 | 40 | ||||||||||||||
| 31 Boreal Warm |
40 | 40 | 20 | ||||||||||||||
| 32 Boreal Cool |
40 | 40 | 20 | ||||||||||||||
| 23 | 122 shrubland, deciduous |
1 Tropical |
60 | 40 | |||||||||||||
| 21 Temperate Warm |
60 | 40 | |||||||||||||||
| 22 Temperate Cool |
60 | 40 | |||||||||||||||
| 31 Boreal Warm |
80 | 20 | |||||||||||||||
| 32 Boreal Cool |
80 | 20 | |||||||||||||||
| 24 | 130 grassland |
100 | |||||||||||||||
| 25 | 140 lichens and mosses |
100 | |||||||||||||||
| 26 | 150 sparse vegetation (tree, shrub, herbaceous cover) (<15%) |
1 Tropical |
5 | 5 | 20 | 70 | |||||||||||
| 21 Temperate Warm |
5 | 5 | 5 | 5 | 30 | 50 | |||||||||||
| 22 Temperate Cool |
5 | 5 | 5 | 5 | 30 | 50 | |||||||||||
| 31 Boreal Warm |
3 | 3 | 3 | 4 | 4 | 3 | 65 | 15 | |||||||||
| 32 Boreal Cool |
3 | 3 | 3 | 4 | 4 | 3 | 65 | 15 | |||||||||
| 27 | 151 sparse trees (<15%) |
1 Tropical |
10 | 20 | 70 | ||||||||||||
| 21 Temperate Warm |
10 | 10 | 30 | 50 | |||||||||||||
| 22 Temperate Cool |
10 | 10 | 30 | 50 | |||||||||||||
| 31 Boreal Warm |
7.5 | 7.5 | 5 | 65 | 15 | ||||||||||||
| 32 Boreal Cool |
7.5 | 7.5 | 5 | 65 | 15 | ||||||||||||
| 28 | 152 sparse shrub (<15%) |
1 Tropical |
10 | 20 | 70 | ||||||||||||
| 21 Temperate Warm |
10 | 10 | 30 | 50 | |||||||||||||
| 22 Temperate Cool |
10 | 10 | 30 | 50 | |||||||||||||
| 31 Boreal Warm |
7.5 | 7.5 | 5 | 65 | 15 | ||||||||||||
| 32 Boreal Cool |
7.5 | 7.5 | 5 | 65 | 15 | ||||||||||||
| 29 | 153 sparse herbaceous cover (<15%) |
1 Tropical |
30 | 70 | |||||||||||||
| 21 Temperate Warm |
50 | 50 | |||||||||||||||
| 22 Temperate Cool |
50 | 50 | |||||||||||||||
| 31 Boreal Warm |
85 | 15 | |||||||||||||||
| 32 Boreal Cool |
85 | 15 | |||||||||||||||
| 30 | 160 tree cover, flooded, fresh or brakish water |
37.5 | 37.5 | 25 | |||||||||||||
| 31 | 170 tree cover, flooded, saline water |
75 | 25 | ||||||||||||||
| 32 | 180 shrub or herbaceous cover, flooded, fresh/saline/brakish water |
25 | 15 | 60 | |||||||||||||
| 33 | 190 urban areas |
100 | |||||||||||||||
| 34 | 200 bare areas |
100 | |||||||||||||||
| 35 | 201 bare areas, consolidated |
100 | |||||||||||||||
| 36 | 202 bare areas, unconsolidated |
100 | |||||||||||||||
| 37 | 210 water bodies |
100 | |||||||||||||||
| 38 | 220 permanent snow and ice |
100 | |||||||||||||||