River and Reservoir Watch Version 4.6
River Discharge and Reservoir Storage Changes Using Satellite Microwave Radiometry Location of this Satellite Gauging Reach
Mekong Center: 104.67 Long. Signal/Noise: 12.8
GFDS Area ID: 84 Thailand Center: 17.02 Lat. Good
GEE Time Lapse WorldView Time Lapse Learn more about this river 385790 sq km WBM contributing area
Last measured: 12-Oct-25 Poorly located, only observes floods.
Discharge: 4606 m3/sec Status: 2 (1, low; 2, normal flow; 3, moderate flood, r >2.33 y; 4, major flood, r >5 y)
7-day Runoff 7.1 mm 82% (7-day runoff compared to 20 y average for this date, 2004-2023)
Flood Magnitude: 0.0 Scale of 0-10 Flood Magnitude Defined Technical Summary
Notes: 7-day forward moving average is applied. Geolocation correction, commencing April 1, 2012: 0
Low flow is 20th percentile discharge for this day, 2003-2013. Noise filter: >.05 daily signal change
Notes: Log Pearson Type III is used to compute recurrence intervals from 27 years of record (1998-2024)
Mean discharge 8300 m3/s
Annual Runoff (percent of mean, 1998-2021) Mean Runoff 684 mm
Mann-Kendall Runoff Trend Analysis (5%) M-K -67 Significant? no Major Floods 10 = flood of record
Sen's slope:
-0.01 z-stat -1.45
Regression slope: 0.00 p-value 0.15
Annual Maximum Q, m3/s
Brakenridge, G. R., Nghiem, S. V., Kugler, Z., Kettner, A. J., Paris, S., Cohen, S. Access to Data
River and Reservoir Watch Version 4.6, DFO Flood Observatory, University of Colorado Mann-Kendall Max Q Trend Analysis (5%) M-K
Robert.Brakenridge@Colorado.edu Sen's slope: -403.94 z-stat
  Regression slope: -415.43 p-value 0.00
Significant? yes
    Coefficients of Polynomial or Linear Rating Curve used:   0.00   -210415.23 209247.53  
        x^4 x^3 x^2 x +