River and Reservoir Watch Version 4.6
River Discharge and Reservoir Storage Changes Using Satellite Microwave Radiometry Location of this Satellite Gauging Reach
This SGR is poorly located and is not providing useful results. Amazon Center: -67.41 Long. Signal/Noise: 5.7
GFDS Area ID: 144 Brazil Center: -2.51 Lat. Fair
GEE Time Lapse WorldView Time Lapse Learn more about this river 1105487 sq km WBM contributing area
Last measured: 16-Jul-25
Discharge: 51717 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 30.4 mm 113% (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 47787 m3/s
Annual Runoff (percent of mean, 1998-2021) Mean Runoff 1356 mm
Mann-Kendall Runoff Trend Analysis (5%) M-K 7 Significant? no Major Floods 10 = flood of record
Sen's slope:
0.00 z-stat 0.13
Regression slope: 0.00 p-value 0.89
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: -290.14 z-stat
  Regression slope: -250.61 p-value 0.02
Significant? yes
    Coefficients of Polynomial or Linear Rating Curve used:   0.00   -573006.80 593534.66  
        x^4 x^3 x^2 x +