Results
| Country: | Mongolia
| | Station: | Ulan-Bator | | River: | Tola | | Area: | 6300 km2 | | Lat: | 47.9 | | Lon: | 106.91 | | Source: | RivDIS | | PointID: | 896 | | Area Units: | km2 | | Discharge Units: | m3/sec | | Starting Year: | 1976 | | Ending Year: | 1984 | | Total Years: | 9 | | Total Usable Years: | 9 | |
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| Year | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Avg Annual |
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| 1976 | 0.08 | 0 | 0.12 | 3.2 | 32.5 | 24 | 106 | 67 | 53 | 21 | 2.5 | 0.08 | 25.79 |
| 1977 | 0.01 | 0 | 0.16 | 6.9 | 36 | 50.5 | 76.5 | 37 | 19 | 7.6 | 3.1 | 0.19 | 19.75 |
| 1978 | 0.04 | 0 | 0 | 1.8 | 11.5 | 37.5 | 48.5 | 20.5 | 21 | 9.6 | 1.9 | 0.19 | 12.71 |
| 1979 | 0 | 0 | 0 | 0.33 | 41.5 | 45 | 41 | 44.5 | 19.5 | 11 | 3 | 0.19 | 17.17 |
| 1980 | 0 | 0 | 0 | 0.3 | 24 | 29.5 | 13.5 | 21.5 | 12.5 | 6.5 | 1.4 | 0.1 | 9.11 |
| 1981 | 0 | 0 | 3.6 | 10.5 | 48 | 28 | 25 | 44.5 | 33.5 | 12.5 | 1.3 | 0 | 17.24 |
| 1982 | 0 | 0 | 0.01 | 9.5 | 9.5 | 68.5 | 112 | 121 | 56 | 20.5 | 8.6 | 0.52 | 33.84 |
| 1983 | 0 | 0 | 0 | 0.66 | 13.5 | 111 | 118 | 102 | 42.5 | 15.5 | 4.5 | 0.18 | 33.99 |
| 1984 | 0 | 0 | 0 | 2 | 16 | 67.5 | 75.5 | 151 | 75 | 18.5 | 4.1 | 0.29 | 34.16 |
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| Avg | 0.01 | 0 | 0.43 | 3.91 | 25.83 | 51.28 | 68.44 | 67.67 | 36.89 | 13.63 | 3.38 | 0.19 | 22.64 |
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| Std Dev | 0.03 |
0 |
1.12 |
3.78 |
13.37 |
26.07 |
36.42 |
43.89 |
19.97 |
5.17 |
2.12 |
0.14 |
9.1 |
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| | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Avg Annual |
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