River and Reservoir Watch Version 4.6
River Discharge and Reservoir Storage Changes Using Satellite Microwave Radiometry Location of this Satellite Gauging Reach
Ju Center: 114.75 Long. Signal/Noise: 12.7
GFDS Area ID: 118 China Center: 30.88 Lat. Good
GEE Time Lapse WorldView Time Lapse Learn more about this river 1014008 sq km WBM contributing area
Last measured: 16-Jul-25
Discharge: 104 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 0.1 mm 159% (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 103 m3/s
Annual Runoff (percent of mean, 1998-2021) Mean Runoff 3 mm
Mann-Kendall Runoff Trend Analysis (5%) M-K 155 Significant? yes Major Floods 10 = flood of record
Sen's slope:
0.03 z-stat 3.39
Regression slope: 0.03 p-value 0.00
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: 1.02 z-stat
  Regression slope: 0.90 p-value 0.45
Significant? no
    Coefficients of Polynomial or Linear Rating Curve used:   0.00 1371.9 -6380.46 4887.5  
        x^4 x^3 x^2 x +