Continent: |
Asia | Latitude: |
32.38 | deg. |
Country: |
Iran | Longitude: |
51.23 |
deg. |
River: |
Zayandeh Rud | Elevation: |
1760.0 |
m |
Station: |
Pol-e-Kaleh | Area: |
5650.0 |
km2 |
| Mean for Observation Period: | 1980 | - | 1984 | Total months: | 60 |
| - | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual |
| m3/c | 39.4 | 36.6 | 33.4 | 20.8 | 11.8 | 24.6 | 41.8 | 54.0 | 57.4 | 49.4 | 50.4 | 45.4 | 38.7 |
| mm | 18.7 | 15.8 | 15.8 | 9.54 | 5.58 | 11.3 | 19.8 | 25.6 | 26.3 | 23.4 | 23.1 | 21.5 | 216. |
| km3 | 0.11 | 0.089 | 0.089 | 0.054 | 0.032 | 0.064 | 0.11 | 0.14 | 0.15 | 0.13 | 0.13 | 0.12 | 1.22 |
| l/s/km2 | 6.97 | 6.48 | 5.91 | 3.68 | 2.08 | 4.35 | 7.40 | 9.56 | 10.2 | 8.74 | 8.92 | 8.04 | 6.86 |
| %% | 8.47 | 7.87 | 7.18 | 4.47 | 2.53 | 5.29 | 8.99 | 11.6 | 12.3 | 10.6 | 10.8 | 9.76 | 100. |
Zayandeh Rud at Pol-e-Kaleh
| Year | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual |
| 1980 | 43.0 | 44.0 | 47.0 | 37.0 | 16.0 | 29.0 | 54.0 | 58.0 | 61.0 | 48.0 | 49.0 | 43.0 | 44.1 |
| 1981 | 39.0 | 34.0 | 34.0 | 21.0 | 8.50 | 23.0 | 40.0 | 54.0 | 55.0 | 47.0 | 48.0 | 43.0 | 37.2 |
| 1982 | 39.0 | 34.0 | 25.0 | 18.0 | 14.0 | 28.0 | 40.0 | 55.0 | 60.0 | 53.0 | 55.0 | 49.0 | 39.2 |
| 1983 | 39.0 | 37.0 | 31.0 | 12.0 | 11.0 | 23.0 | 34.0 | 50.0 | 55.0 | 51.0 | 50.0 | 49.0 | 36.8 |
| 1984 | 37.0 | 34.0 | 30.0 | 16.0 | 9.40 | 20.0 | 41.0 | 53.0 | 56.0 | 48.0 | 50.0 | 43.0 | 36.4 |