Site ID:

393

Lat.

55.4690

Russia

Nizhegorodskaya

River:

Pjana

Long.

45.3308

Site name:

Sergach

Contributing area:

6888

km2

Ratio to Comparison Station:

0.24

Latest measurement:

17-Jul-10

Mean annual runoff:

30

mm

(2003-2009)

Hydrologic status:

2

Normal flow

Total runoff this year (2010):

10.5

mm

Latest M/C ratio:

1.10

Seven day total:

0.3

mm

Estimated current discharge:

3

m3/sec

Percent of mean 7-day total:

125.0

%

(today's value compared to mean for same period, 2003-2009)

5 yr recurrence flood:

541

m3/sec

(from Log Pearson III analysis)

Status Codes:  1 = Low flow or ice, 2 = Normal flow, 3 = Flood, 4 = Major Flood

593

m3/sec

(from Gumbel Extreme Value analysis)

Comparison Station Information:

Boluo (2186950)

Contributing Area:

sq mi

28239

sq km

(Data from this gaging station are used for the calibration to discharge, with an adjustment for different contributing areas)

Notes:

Final calibration to discharge has not yet been accomplished.

Discharge and runoff, based on satellite remote sensing (NASA AMSR-E data)

(For U.S, sites, nearby ground station discharge may also be shown)

Annual

Monthly Total Runoff (mm), computed from above satellite-based discharge data

Runoff

(mm)

Jan

Feb

Mar

April

May

June

July

Aug

Sept

Oct

Nov

Dec

6

2002

no data

no data

no data

no data

no data

no data

no data

1.0

1.0

1.3

1.3

1.3

30

2003

1.3

1.0

0.9

17.2

1.3

1.3

1.3

1.3

1.3

1.3

1.0

1.3