Site ID: 722 Lat. 51.9509 UK 0
River: Thames Long. -1.2927
Site name: 0 Contributing area: 1596 km2 Ratio to Comparison Station: 0.01
Latest measurement: 6-Jan-10 Mean annual runoff: 1819 mm (2003-2008)
Hydrologic status: 2 Normal flow Total runoff this year: 2008 mm
Latest M/C ratio: 1.02 Seven day total: 1 mm
Estimated current discharge: 92 m3/sec Percent of mean 7-day total: 79.2 % (today's value compared to mean for same period, 2003-2007)
Ice-cover determination: 5 yr recurrence flood: 340 m3/sec (from Log Pearson III analysis)
Status Codes:  1 = Low flow, 2 = Normal flow, 3 = Flood, 4 = Major Flood 353 m3/sec (from Gumbel Extreme Value analysis)
Comparison Station Information:  Montjean (6123100)           Contributing Area:   sq mi 109908 sq km
(Data from this gaging station are used for the calibration to discharge, with an adjustment for different contributing areas)
Notes: Rating equation is based on comparison of monthly means from a station in the region with proportional adjustment for differing drainage areas
Discharge and runoff, based on satellite remote sensing (NASA AMSR-E data)
(For U.S, sites, nearby ground station discharge may also be shown)
2008-Present
2002-Present
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
871 2002 no data no data no data no data no data no data no data 169.9 129.2 158.5 244.2 169.3
1943 2003 370.1 185.6 147.1 100.0 174.8 167.0 162.1 161.7 146.1 111.4 94.1 123.5
1745 2004 169.4 236.8 201.9 164.6 162.4 167.5 141.2 94.4 99.6 97.7 95.1 114.4
1743 2005 108.4 142.8 171.3 95.2 141.3 153.8 46.1 131.0 141.4 109.8 201.1 301.1
1609 2006 124.9 131.0 178.7 117.6 152.9 158.1 172.3 164.5 164.9 243.9 0.0 0.0
1915 2007 258.0 136.3 137.5 132.2 130.0 106.6 223.0 173.2 133.4 139.3 174.4 171.0
2008 2008 232.9 124.7 183.6 117.1 140.4 163.9 129.2 118.6 190.6 153.1 207.3 246.5
1479 2009 135.8 125.7 99.7 90.3 90.9 137.8 107.8 134.5 110.0 125.8 162.9 157.6
Mean Annual Runoff: 28 Standard Deviation: 152
Trend in Annual Runoff (slope):  17.69
Discharge is estimated directly via a rating equation from the remote sensing data (M/C ratio) shown below.
Explanation:   Green line records upwelling microwave emission from a land parcel (ca 10 km x 10 km) near the river; blue line from a parcel centered over the river.
Brown line is their ratio (M/C; 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. For calibration status, see "notes" entry, above.
When data above show calibration site values lower than for the measurement site, discharge estimation may not be possible.
GoogleEarth View of Measurement Site
722.jpg
Return
Date m3/sec
22-Jul-02 93
23-Jul-02 93
24-Jul-02 84
25-Jul-02 117
26-Jul-02 113
27-Jul-02 102
28-Jul-02 94
29-Jul-02 66
30-Jul-02 57
31-Jul-02 47
1-Aug-02 21
2-Aug-02 29
3-Aug-02
4-Aug-02
5-Aug-02
6-Aug-02
7-Aug-02
8-Aug-02
9-Aug-02 152
10-Aug-02 157
11-Aug-02 101
12-Aug-02 124
13-Aug-02 107
14-Aug-02 137
15-Aug-02 205
16-Aug-02 188
17-Aug-02 187
18-Aug-02 114
19-Aug-02 66
20-Aug-02 73
21-Aug-02 64
22-Aug-02 95
23-Aug-02 109
24-Aug-02 103
25-Aug-02 102
26-Aug-02 158
27-Aug-02 187
28-Aug-02 175
29-Aug-02 206
30-Aug-02 136
31-Aug-02 144
1-Sep-02 144
2-Sep-02 124
3-Sep-02 106
4-Sep-02 68
5-Sep-02 46
6-Sep-02 50
7-Sep-02 37
8-Sep-02 52
9-Sep-02 79
10-Sep-02 93
11-Sep-02 122
12-Sep-02 144
13-Sep-02 137
14-Sep-02 134
15-Sep-02 143
16-Sep-02 85
17-Sep-02
18-Sep-02
19-Sep-02
20-Sep-02
21-Sep-02 76
22-Sep-02 115
23-Sep-02 81
24-Sep-02 62
25-Sep-02 58
26-Sep-02 50
27-Sep-02 68
28-Sep-02 87
29-Sep-02 105
30-Sep-02 119
1-Oct-02 126
2-Oct-02 142
3-Oct-02 131
4-Oct-02 126
5-Oct-02 124
6-Oct-02 98
7-Oct-02 96
8-Oct-02 91
9-Oct-02 61
10-Oct-02 82
11-Oct-02 72
12-Oct-02 52
13-Oct-02 77
14-Oct-02 50
15-Oct-02 43
16-Oct-02 43
17-Oct-02 64
18-Oct-02 79
19-Oct-02 110
20-Oct-02 133
21-Oct-02 108
22-Oct-02 137
23-Oct-02 133
24-Oct-02 142
25-Oct-02 131
26-Oct-02 119
27-Oct-02 106
28-Oct-02 59
29-Oct-02 82
30-Oct-02 54
31-Oct-02 56
1-Nov-02 95
2-Nov-02 84
3-Nov-02 99
4-Nov-02 99
5-Nov-02 103
6-Nov-02 127
7-Nov-02 122
8-Nov-02 144
9-Nov-02 164
10-Nov-02 137
11-Nov-02 149
12-Nov-02 138
13-Nov-02 130
14-Nov-02 120
15-Nov-02 119
16-Nov-02 111
17-Nov-02 129
18-Nov-02 177
19-Nov-02 186
20-Nov-02 218
21-Nov-02 195
22-Nov-02 146
23-Nov-02 176
24-Nov-02 172
25-Nov-02 178
26-Nov-02 184
27-Nov-02 177
28-Nov-02 214
29-Nov-02 214
30-Nov-02 206
1-Dec-02 143
2-Dec-02 117
3-Dec-02 75
4-Dec-02 60
5-Dec-02 78
6-Dec-02 57
7-Dec-02 69
8-Dec-02 63
9-Dec-02 64
10-Dec-02 52
11-Dec-02 54
12-Dec-02 79
13-Dec-02 99
14-Dec-02 116
15-Dec-02 101
16-Dec-02 77
17-Dec-02 71
18-Dec-02 62
19-Dec-02 75
20-Dec-02 85
21-Dec-02 71
22-Dec-02 95
23-Dec-02 103
24-Dec-02 135
25-Dec-02 181
26-Dec-02 165
27-Dec-02 192
28-Dec-02 153
29-Dec-02 150
30-Dec-02 140
31-Dec-02 143
1-Jan-03 165
2-Jan-03 191
3-Jan-03 310
4-Jan-03 315
5-Jan-03 396
6-Jan-03 369
7-Jan-03 343
8-Jan-03 335
9-Jan-03 208
10-Jan-03 200
11-Jan-03 171
12-Jan-03 176
13-Jan-03 172
14-Jan-03 173
15-Jan-03 183
16-Jan-03 162
17-Jan-03 180
18-Jan-03 157
19-Jan-03 155
20-Jan-03 111
21-Jan-03 130
22-Jan-03 173
23-Jan-03 232
24-Jan-03 298
25-Jan-03 327
26-Jan-03 318
27-Jan-03 234
28-Jan-03 207
29-Jan-03 166
30-Jan-03 146
31-Jan-03 132
1-Feb-03 162
2-Feb-03 121
3-Feb-03 102
4-Feb-03 117
5-Feb-03 101
6-Feb-03 127
7-Feb-03 118
8-Feb-03 111
9-Feb-03 110
10-Feb-03 105
11-Feb-03 123
12-Feb-03 153
13-Feb-03 126
14-Feb-03 134
15-Feb-03 112
16-Feb-03 78
17-Feb-03 103
18-Feb-03 125
19-Feb-03 158
20-Feb-03 160
21-Feb-03 141
22-Feb-03 126
23-Feb-03 116
24-Feb-03 128
25-Feb-03 147
26-Feb-03 130
27-Feb-03 94
28-Feb-03 97
1-Mar-03 78
2-Mar-03 73
3-Mar-03 100
4-Mar-03 69
5-Mar-03 74
6-Mar-03 71
7-Mar-03 60
8-Mar-03 78
9-Mar-03 71
10-Mar-03 82
11-Mar-03 102
12-Mar-03 92
13-Mar-03 90
14-Mar-03 81
15-Mar-03 75
16-Mar-03 71
17-Mar-03 78
18-Mar-03 74
19-Mar-03 70
20-Mar-03 94
21-Mar-03 96
22-Mar-03 85
23-Mar-03 103
24-Mar-03 77
25-Mar-03 156
26-Mar-03 148
27-Mar-03 130
28-Mar-03 116
29-Mar-03 76
30-Mar-03 77
31-Mar-03 72
1-Apr-03 55
2-Apr-03 59
3-Apr-03 50
4-Apr-03 73
5-Apr-03 77
6-Apr-03 44
7-Apr-03 14
8-Apr-03 38
9-Apr-03 42
10-Apr-03 44
11-Apr-03 78
12-Apr-03 89
13-Apr-03 89
14-Apr-03 101
15-Apr-03 73
16-Apr-03 80
17-Apr-03 70
18-Apr-03 66
19-Apr-03 69
20-Apr-03 53
21-Apr-03 65
22-Apr-03 44
23-Apr-03 67
24-Apr-03 62
25-Apr-03 52
26-Apr-03 78
27-Apr-03 57
28-Apr-03 67
29-Apr-03 48
30-Apr-03 43
1-May-03 62
2-May-03 77
3-May-03 105
4-May-03 123
5-May-03 96
6-May-03 87
7-May-03 82
8-May-03 89
9-May-03 118
10-May-03 135
11-May-03 134
12-May-03 103
13-May-03 84
14-May-03 63
15-May-03 68
16-May-03 102
17-May-03 101
18-May-03 115
19-May-03 120
20-May-03 123
21-May-03 132
22-May-03 128
23-May-03 161
24-May-03 152
25-May-03 138
26-May-03 128
27-May-03 83
28-May-03 69
29-May-03 64
30-May-03 77
31-May-03 109
1-Jun-03 155
2-Jun-03 182
3-Jun-03 187
4-Jun-03 153
5-Jun-03 102
6-Jun-03 94
7-Jun-03 87
8-Jun-03 90
9-Jun-03 102
10-Jun-03 92
11-Jun-03 90
12-Jun-03 89
13-Jun-03 91
14-Jun-03 91
15-Jun-03 68
16-Jun-03 85
17-Jun-03 79
18-Jun-03 81
19-Jun-03 119
20-Jun-03 82
21-Jun-03 128
22-Jun-03 131
23-Jun-03 125
24-Jun-03 86
25-Jun-03 65
26-Jun-03 68
27-Jun-03 58
28-Jun-03 94
29-Jun-03 106
30-Jun-03 107
1-Jul-03 116