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Site ID: 709 Lat. 47.2696 France 0
River: Cher Long. 1.7011
Site name: 0 Contributing area: 8817 km2 Ratio to Comparison Station: 0.31
Latest measurement: 2-Sep-11 Mean annual runoff: 507 mm (2003-2009)
Hydrologic status: 2 Normal flow Total runoff this year (2010): 563.6 mm
Latest M/C ratio: 0.98 Seven day total: 13.9 mm
Estimated current discharge: 143 m3/sec Percent of mean 7-day total: 146.0 % (today's value compared to mean for same period, 2003-2009)
5 yr recurrence flood: 304 m3/sec (from Log Pearson III analysis)
Status Codes:  1 = Low flow or ice, 2 = Normal flow, 3 = Flood, 4 = Major Flood 302 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
164 2002 no data no data no data no data no data no data no data 34.8 37.8 30.3 25.6 35.4
520 2003 39.1 36.5 39.2 50.2 73.2 71.0 63.4 35.2 25.7 25.3 25.0 36.2
524 2004 39.5 36.6 39.7 47.9 59.3 62.1 64.3 44.2 40.5 26.4 32.4 31.7
466 2005 37.6 39.4 37.2 47.6 57.4 65.8 8.1 40.6 37.2 26.8 31.7 36.7
424 2006 26.7 19.9 29.8 49.7 67.8 63.4 59.5 41.6 33.6 31.9 0.0 0.0
566 2007 31.6 32.4 54.7 64.2 67.3 69.3 62.1 51.0 43.4 37.4 29.5 22.9
531 2008 17.9 29.9 39.1 54.9 64.6 75.1 70.2 43.4 40.5 36.9 26.6 32.0
518 2009 23.9 32.2 33.6 52.9 72.8 65.4 62.9 46.9 37.6 35.7 24.1 30.6
564 2010 29.6 25.2 32.3 48.0 67.8 66.5 76.2 43.5 40.1 32.3 28.7 73.4
Mean Annual Runoff (mm): 507 Standard Deviation: 6.4
Trend in Annual Runoff (slope):  -73
Discharge is estimated via a rating equation directly from the remote sensing data (M/C ratio) shown below.
Green line records upwelling microwave emission from within 5 km radius of a calbration land target. 
Explanation:   Blue line is emission from within 5 km radius of the measurement target centered over the river.
Brown line is their ratio (M/C; "HR" in Brakenridge et al 2007; scale on right) and is used to estimate river discharge via a rating equation.
Rating equations are being developed and applied on an individual basis using available ground-based discharge information.
GoogleEarth View of Measurement Site
Return
Estimated
Disharge
Data
Date m3/sec
22-Jul-02 186
23-Jul-02 186
24-Jul-02 194
25-Jul-02 206
26-Jul-02 219
27-Jul-02 196
28-Jul-02 195
29-Jul-02 189
30-Jul-02 165
31-Jul-02 174
1-Aug-02 162
2-Aug-02 152
3-Aug-02
4-Aug-02
5-Aug-02
6-Aug-02
7-Aug-02
8-Aug-02
9-Aug-02 228
10-Aug-02 228
11-Aug-02 184
12-Aug-02 156
13-Aug-02 121
14-Aug-02 133
15-Aug-02 149
16-Aug-02 165
17-Aug-02 177
18-Aug-02 187
19-Aug-02 167
20-Aug-02 166
21-Aug-02 120
22-Aug-02 95
23-Aug-02 97
24-Aug-02 90
25-Aug-02 114
26-Aug-02 120
27-Aug-02 114
28-Aug-02 110
29-Aug-02 112
30-Aug-02 102
31-Aug-02 100
1-Sep-02 115
2-Sep-02 124
3-Sep-02 153
4-Sep-02 165
5-Sep-02 159
6-Sep-02 152
7-Sep-02 142
8-Sep-02 132
9-Sep-02 137
10-Sep-02 173
11-Sep-02 182
12-Sep-02 204
13-Sep-02 207
14-Sep-02 187
15-Sep-02 187
16-Sep-02 183
17-Sep-02
18-Sep-02
19-Sep-02
20-Sep-02
21-Sep-02 87
22-Sep-02 110
23-Sep-02 120
24-Sep-02 122
25-Sep-02 140
26-Sep-02 135
27-Sep-02 133
28-Sep-02 135
29-Sep-02 116
30-Sep-02 159
1-Oct-02 138
2-Oct-02 141
3-Oct-02 132
4-Oct-02 121
5-Oct-02 125
6-Oct-02 118
7-Oct-02 124
8-Oct-02 127
9-Oct-02 127
10-Oct-02 135
11-Oct-02 126
12-Oct-02 123
13-Oct-02 119
14-Oct-02 103
15-Oct-02 103
16-Oct-02 99
17-Oct-02 100
18-Oct-02 75
19-Oct-02 87
20-Oct-02 81
21-Oct-02 89
22-Oct-02 112
23-Oct-02 93
24-Oct-02 99
25-Oct-02 79
26-Oct-02 78
27-Oct-02 56
28-Oct-02 42
29-Oct-02 36
30-Oct-02 31
31-Oct-02 73
1-Nov-02 82
2-Nov-02 89
3-Nov-02 100
4-Nov-02 103
5-Nov-02 87
6-Nov-02 77
7-Nov-02 62
8-Nov-02 60
9-Nov-02 75
10-Nov-02 75
11-Nov-02 91
12-Nov-02 64
13-Nov-02 69
14-Nov-02 66
15-Nov-02 59
16-Nov-02 102
17-Nov-02 109
18-Nov-02 99
19-Nov-02 96
20-Nov-02 89
21-Nov-02 75
22-Nov-02 69
23-Nov-02 82
24-Nov-02 72
25-Nov-02 91
26-Nov-02 110
27-Nov-02 115
28-Nov-02 132
29-Nov-02 107
30-Nov-02 100
1-Dec-02 80
2-Dec-02 80
3-Dec-02 80
4-Dec-02 83
5-Dec-02 97
6-Dec-02 98
7-Dec-02 114
8-Dec-02 123
9-Dec-02 115
10-Dec-02 115
11-Dec-02 132
12-Dec-02 109
13-Dec-02 100
14-Dec-02 101
15-Dec-02 84
16-Dec-02 99
17-Dec-02 136
18-Dec-02 157
19-Dec-02 137
20-Dec-02 144
21-Dec-02 123
22-Dec-02 112
23-Dec-02 132
24-Dec-02 115
25-Dec-02 125
26-Dec-02 142
27-Dec-02 135
28-Dec-02 148
29-Dec-02 147
30-Dec-02 123
31-Dec-02 119
1-Jan-03 107
2-Jan-03 105
3-Jan-03 168
4-Jan-03 205
5-Jan-03 184
6-Jan-03 191
7-Jan-03 152
8-Jan-03 141
9-Jan-03 141
10-Jan-03 127
11-Jan-03 123
12-Jan-03 117
13-Jan-03 107
14-Jan-03 108
15-Jan-03 111
16-Jan-03 107
17-Jan-03 114
18-Jan-03 119
19-Jan-03 121
20-Jan-03 117
21-Jan-03 120
22-Jan-03 129
23-Jan-03 130
24-Jan-03 148
25-Jan-03 139
26-Jan-03 133
27-Jan-03 125
28-Jan-03 114
29-Jan-03 102
30-Jan-03 85
31-Jan-03 100
1-Feb-03 106
2-Feb-03 122
3-Feb-03 122
4-Feb-03 113
5-Feb-03 79
6-Feb-03 100
7-Feb-03 129
8-Feb-03 126
9-Feb-03 186
10-Feb-03 200
11-Feb-03 226
12-Feb-03 210
13-Feb-03 184
14-Feb-03 160
15-Feb-03 139
16-Feb-03 131
17-Feb-03 130
18-Feb-03 133
19-Feb-03 118
20-Feb-03 111
21-Feb-03 106
22-Feb-03 112
23-Feb-03 121
24-Feb-03 124
25-Feb-03 113
26-Feb-03 110