River and Reservoir Watch Version 4.5

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:

116.01

Long.

Signal/Noise:

5.2

GFDS Area ID:

38

China

Center:

29.339

Lat.

Fair

GEE Time Lapse

WorldView Time Lapse

Learn more about this lake

160997

sq km

WBM contributing area

Last measured:

1-May-24

Area Signal

24837

Status:

2

(1, low; 2, normal high; 3, moderate high, r >1.5 y; 4, major high, r >5 y)

7-day Signal2

82.1

#N/A

(7-day area compared to 20 y average for this date, 2002-2021)

Technical Summary

Notes:

10-day forward weighted moving average is applied.

Geolocation correction, commencing April 1, 2012:

0

Low is 20th percentile of area signal for this day, 2003-2013.

Notes:

Log Pearson Type III is used to compute recurrence intervals from 22 years of record (1998-2019)

Mean Signal

15041

Annual Signal2 (percent of mean, 1998-2021)

Mean Annual Signal2

2948

Protected Under United States Copyright Law

Access to Data

Sample Citation: Brakenridge, G. R., Kettner, A. J., Paris, S., Cohen, S., Nghiem, S. V. , River and Reservoir Watch Version 4.5,

DFO Flood Observatory, University of Colorado, USA. http://floodobservatory.colorado.edu/ SiteDisplays/ 20.htm (Accessed 20 February 2023).

Robert.Brakenridge@Colorado.edu

Coefficients of Polynomial or Linear Rating Curve used:

-142061.92

136515.48

x^4

x^3

x^2

x

+