Table 1 Strata, sample distribution and strata sizes in the cropland validation campaign.
From: A global reference database of crowdsourced cropland data collected using the Geo-Wiki platform
Stratum (% cropland probability) | Number of samples | Percent share | Stratum size (Million km2) | Weights (size of one sample, km2) |
|---|---|---|---|---|
1 (0%) | 500 | 1.39 | 84.01 | 168026 |
2 (0–25%) | 10960 | 30.56 | 18.76 | 1712 |
3 (25–75%) | 15984 | 44.57 | 14.66 | 917 |
4 (>75%) | 8422 | 23.48 | 16.47 | 1955 |
