Water resources management in Costa Rica Water quality Key characteristics of the major climatic regions

| Region | Land_area_km_2_ | Rainfall_by_depth_mm_year | Rainfall_by_volume_km_3_year | Surface_run_off_km_3_year | Infiltration_km_3_year | Evapotranspiration_km_3_year |
|---|---|---|---|---|---|---|
| Chorotega | 9552.4 | 2006 | 19.2 | 5.7 | 3.5 | 10.3 |
| Huetar Norte | 9001.5 | 3527 | 31.8 | 14.9 | 9.6 | 7.5 |
| Huetar Atlántico | 9688.5 | 3933 | 38.1 | 17.6 | 9.3 | 11.1 |
| Pacífico Central | 4722.9 | 2801 | 13.2 | 5.2 | 2.2 | 4.9 |
| Central | 8543.2 | 3461 | 29.6 | 13 | 7 | 8.6 |
| Brunca | 9294.5 | 3809 | 35.4 | 18.6 | 5.6 | 12.2 |