River and Reservoir Watch Version 4.6
River Discharge and Reservoir Storage Changes Using Satellite Microwave Radiometry Location of this Satellite Gauging Reach
Irrawaddy Center: 95.395 Long. Signal/Noise: 11.0
GFDS Area ID: 30 Myanmar Center: 18.0965 Lat. Good
GEE Time Lapse WorldView Time Lapse Learn more about this river 370110 sq km WBM contributing area
Last measured: 13-Jul-24
Discharge: 11806 m3/sec Status: 1 (1, low; 2, normal flow; 3, moderate flood, r >2.33 y; 4, major flood, r >5 y)
7-day Runoff 17.5 mm 68% (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 weighted moving average is applied. Geolocation correction, commencing April 1, 2012: 0
Low flow is 20th percentile discharge for this day, 2003-2013.
Notes: Log Pearson Type III is used to compute recurrence intervals from 24 years of record (1998-2023)
Mean discharge 9860 m3/s
Annual Runoff (percent of mean, 1998-2021) Mean Runoff 814 mm
Mann-Kendall Runoff Trend Analysis (5%) M-K -189 Significant? yes Major Floods 10 = flood of record
Sen's slope:
-0.03 z-stat -4.14
Regression slope: -0.03 p-value 0.00
Annual Maximum Q, m3/s
Brakenridge, G. R., Nghiem, S. V., 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 -141
Robert.Brakenridge@Colorado.edu Sen's slope: -606.80 z-stat -3.09
  Regression slope: -649.15 p-value 0.00
Significant? yes
    Coefficients of Polynomial or Linear Rating Curve used:       -245950.44 242549.57  
        x^4 x^3 x^2 x +