Discharge analysis results using RVA and HAF indices for Mekong stations
| Month | Target range (m3/s) | Observed frequency (%) | HAF factor | Alteration level | MWUp-value |
|---|---|---|---|---|---|
| Luang Prabang | |||||
| Feb | 976.7–1372.7 | 6.7 | −0.87 | High | <0.001 |
| Mar | 935.9–1174.5 | 0.0 | −1.00 | High | <0.001 |
| Apr | 928.5–1170.2 | 0.0 | −1.00 | High | <0.001 |
| Aug | 8,024.2–11,412.7 | 0.0 | −1.00 | High | 0.846 |
| Sep | 6,690.9–9,839.0 | 0.0 | −1.00 | High | 0.560 |
| Oct | 4,725.6–5,980.4 | 13.3 | −0.73 | High | 0.028 |
| Pakse | |||||
| Feb | 2,227.6–2,645.7 | 6.7 | −0.87 | High | 0.003 |
| Mar | 1,989.5–2,318.4 | 0.0 | −1.00 | High | <0.001 |
| Apr | 1,956.6–2,409.4 | 6.7 | −0.87 | High | <0.001 |
| Aug | 24,501.0–33,415.4 | 20.0 | −0.60 | Moderate | 0.028 |
| Sep | 24,385.5–32,285.4 | 40.0 | −0.20 | Low | 0.127 |
| Oct | 15,203.1–17,523.0 | 20.0 | −0.60 | Moderate | 0.255 |
| Mukdahan | |||||
| Feb | 2,125.9–2574.7 | 0.0 | −1.00 | High | <0.001 |
| Mar | 1,994.8–2261.3 | 0.0 | −1.00 | High | <0.001 |
| Apr | 2,024.6–2354.0 | 6.7 | −0.87 | High | <0.001 |
| Aug | 19,940.2–29,441.1 | 13.3 | −0.73 | High | 0.001 |
| Sep | 19,933.3–24,854.2 | 6.7 | −0.87 | High | 0.001 |
| Oct | 10,350.0–14,138.7 | 6.7 | −0.87 | High | 0.001 |
| Kratie | |||||
| Feb | 2,763.2–3,075.3 | 0.0 | −1.00 | High | 0.033 |
| Mar | 2,468.8–2,796.4 | 6.7 | −0.87 | High | 0.010 |
| Apr | 2,666.3–2,879.3 | 0.0 | −1.00 | High | <0.001 |
| Aug | 32,411.0–39,384.2 | 20.0 | −0.60 | Moderate | 0.018 |
| Sep | 29,689.9–39,948.2 | 46.7 | −0.07 | Low | 0.157 |
| Oct | 22,283.6–26,796.8 | 35.7 | −0.29 | Low | 0.188 |
| Tan Chau | |||||
| Feb | 3,775.6–4,846.6 | 46.7 | −0.07 | Low | 0.560 |
| Mar | 2,532.0–3,151.5 | 26.7 | −0.47 | Moderate | 0.174 |
| Apr | 2,109.1–2,673.3 | 20.0 | −0.60 | Moderate | 0.004 |
| Aug | 18,574.7–20,117.4 | 20.0 | −0.60 | Moderate | 0.454 |
| Sep | 18,908.1–21,442.0 | 26.7 | −0.47 | Moderate | 1.000 |
| Oct | 18,520.7–19,793.6 | 20.0 | −0.60 | Moderate | 0.598 |
| Month | Target range (m3/s) | Observed frequency (%) | Alteration level | ||
|---|---|---|---|---|---|
| Feb | 976.7–1372.7 | 6.7 | −0.87 | High | <0.001 |
| Mar | 935.9–1174.5 | 0.0 | −1.00 | High | <0.001 |
| Apr | 928.5–1170.2 | 0.0 | −1.00 | High | <0.001 |
| Aug | 8,024.2–11,412.7 | 0.0 | −1.00 | High | 0.846 |
| Sep | 6,690.9–9,839.0 | 0.0 | −1.00 | High | 0.560 |
| Oct | 4,725.6–5,980.4 | 13.3 | −0.73 | High | 0.028 |
| Feb | 2,227.6–2,645.7 | 6.7 | −0.87 | High | 0.003 |
| Mar | 1,989.5–2,318.4 | 0.0 | −1.00 | High | <0.001 |
| Apr | 1,956.6–2,409.4 | 6.7 | −0.87 | High | <0.001 |
| Aug | 24,501.0–33,415.4 | 20.0 | −0.60 | Moderate | 0.028 |
| Sep | 24,385.5–32,285.4 | 40.0 | −0.20 | Low | 0.127 |
| Oct | 15,203.1–17,523.0 | 20.0 | −0.60 | Moderate | 0.255 |
| Feb | 2,125.9–2574.7 | 0.0 | −1.00 | High | <0.001 |
| Mar | 1,994.8–2261.3 | 0.0 | −1.00 | High | <0.001 |
| Apr | 2,024.6–2354.0 | 6.7 | −0.87 | High | <0.001 |
| Aug | 19,940.2–29,441.1 | 13.3 | −0.73 | High | 0.001 |
| Sep | 19,933.3–24,854.2 | 6.7 | −0.87 | High | 0.001 |
| Oct | 10,350.0–14,138.7 | 6.7 | −0.87 | High | 0.001 |
| Feb | 2,763.2–3,075.3 | 0.0 | −1.00 | High | 0.033 |
| Mar | 2,468.8–2,796.4 | 6.7 | −0.87 | High | 0.010 |
| Apr | 2,666.3–2,879.3 | 0.0 | −1.00 | High | <0.001 |
| Aug | 32,411.0–39,384.2 | 20.0 | −0.60 | Moderate | 0.018 |
| Sep | 29,689.9–39,948.2 | 46.7 | −0.07 | Low | 0.157 |
| Oct | 22,283.6–26,796.8 | 35.7 | −0.29 | Low | 0.188 |
| Feb | 3,775.6–4,846.6 | 46.7 | −0.07 | Low | 0.560 |
| Mar | 2,532.0–3,151.5 | 26.7 | −0.47 | Moderate | 0.174 |
| Apr | 2,109.1–2,673.3 | 20.0 | −0.60 | Moderate | 0.004 |
| Aug | 18,574.7–20,117.4 | 20.0 | −0.60 | Moderate | 0.454 |
| Sep | 18,908.1–21,442.0 | 26.7 | −0.47 | Moderate | 1.000 |
| Oct | 18,520.7–19,793.6 | 20.0 | −0.60 | Moderate | 0.598 |
MWU is Mann–Whitney U test
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