River and Reservoir Watch Version 4.6

River Discharge and Reservoir Storage Changes Using Satellite Microwave Radiometry

Location of this Satellite Gauging Reach

Red

Center:

-97.199

Long.

Signal/Noise:

34.7

GFDS Area ID:

87

USA

Center:

48.509

Lat.

Excellent

GEE Time Lapse

WorldView Time Lapse

Learn more about this river

91013

sq km

WBM contributing area

Last measured:

18-Nov-24

Discharge:

52

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

0.3

mm

94%

(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, 2003-2011.

Notes:

Log Pearson Type III is used to compute recurrence intervals from 18 years of record (2003-2010, 2014-2023)

Mean discharge, 2014-2023

105

m3/s

Annual Runoff (percent of mean, 2014-2023)

Mean Runoff, 2014-2023

37

mm

Mann-Kendall Runoff Trend Analysis (5%)

M-K

9

Significant?

no

Major Floods

10 = flood of record

Sen's slope:

0.02

z-stat

0.72

(2014-2023 only)

Regression slope:

0.02

p-value

0.47

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

13

Robert.Brakenridge@Colorado.edu

Sen's slope:

21.62

z-stat

1.07

Regression slope:

33.43

p-value

0.28

(2014-2023 only)

Significant?

no

Coefficients of Polynomial or Linear Rating Curve used:

9578.66

-22250.89

12672.24

x^4

x^3

x^2

x

+