River and Reservoir Watch Version 4.6
River Discharge and Reservoir Storage Changes Using Satellite Microwave Radiometry Location of this Satellite Gauging Reach
Tracking expansion and contraction of this lake Poyang Center: 116.005 Long. Signal/Noise: 6.0
GFDS Area ID: 38 China Center: 29.3465 Lat. Fair
GEE Time Lapse WorldView Time Lapse Learn more about this lake 160997 sq km WBM contributing area
Last measured: 25-Dec-24
Area Signal: 6449 Status: 1 (1, low; 2, normal; 3, moderate flood, r >2.33 y; 4, major flood, r >5 y)
7-day Sum 27.4 Area Signal/Contributing Area 72% (7-day Signal 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 Area is 20th percentile for this day, 2003-2013.
Notes: Log Pearson Type III is used to compute recurrence intervals from 24 years of record (1998-2023)
Mean Area Signal 15026
Annual Area Signal (percent of mean, 1998-2021) Mean Area/Contributing Area 2924
Mann-Kendall Runoff Trend Analysis (5%) M-K -79 Significant? no Major Floods 10 = flood of record
Sen's slope:
-0.01 z-stat -1.72
Regression slope: -0.01 p-value 0.09
Annual Maximum Area
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 -25
Robert.Brakenridge@Colorado.edu Sen's slope: -63.23 z-stat -0.53
  Regression slope: -74.47 p-value 0.60
Significant? no
    Coefficients of Polynomial or Linear Rating Curve used:       -142061.92 136515.48  
        x^4 x^3 x^2 x +