Site ID: 1968 Lat. 42.7895 Italy 0
River: Ombrone Long. 11.0911
Site name: 0 Contributing area: 3602 km2 Ratio to Comparison Station: 0.13
Latest measurement: 7-Sep-11 Mean annual runoff: 819 mm (2003-2009)
Hydrologic status: 2 Normal flow Total runoff this year (2010): 1047.4 mm
Latest M/C ratio: 1.01 Seven day total: 6.3 mm
Estimated current discharge: 15 m3/sec Percent of mean 7-day total: 48.4 % (today's value compared to mean for same period, 2003-2009)
5 yr recurrence flood: 347 m3/sec (from Log Pearson III analysis)
Status Codes:  1 = Low flow or ice, 2 = Normal flow, 3 = Flood, 4 = Major Flood 334 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
341 2002 no data no data no data no data no data no data no data 23.5 43.9 52.0 108.7 112.9
583 2003 97.0 58.7 58.6 47.0 16.7 29.0 24.1 28.5 36.1 49.0 47.1 90.8
437 2004 77.0 57.4 56.2 34.8 11.6 9.9 11.3 12.4 12.3 27.6 60.6 65.5
797 2005 67.3 45.0 87.1 79.1 49.9 36.9 2.7 55.6 89.4 87.2 80.5 116.2
806 2006 120.2 72.9 79.3 71.2 44.4 64.6 69.3 69.2 105.1 110.4 0.0 0.0
853 2007 114.0 71.7 76.2 54.6 38.4 40.6 49.1 62.4 48.8 77.2 92.6 127.3
990 2008 131.9 88.7 77.0 74.8 38.4 51.1 51.3 55.0 59.4 63.9 128.3 170.4
1271 2009 202.8 162.8 122.1 103.5 66.8 77.4 67.2 61.4 55.7 84.2 139.0 127.7
1047 2010 130.5 111.0 88.8 75.2 49.6 46.6 65.6 45.9 59.4 58.8 103.8 212.2
Mean Annual Runoff (mm): 819 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 36
23-Jul-02 36
24-Jul-02 46
25-Jul-02 34
26-Jul-02 19
27-Jul-02 44
28-Jul-02 52
29-Jul-02 71
30-Jul-02 81
31-Jul-02 67
1-Aug-02 63
2-Aug-02 54
3-Aug-02
4-Aug-02
5-Aug-02
6-Aug-02
7-Aug-02
8-Aug-02
9-Aug-02
10-Aug-02 54
11-Aug-02 47
12-Aug-02 56
13-Aug-02 62
14-Aug-02 70
15-Aug-02 61
16-Aug-02 56
17-Aug-02 63
18-Aug-02 50
19-Aug-02 48
20-Aug-02 54
21-Aug-02 31
22-Aug-02 28
23-Aug-02 34
24-Aug-02 23
25-Aug-02 20
26-Aug-02 15
27-Aug-02 21
28-Aug-02 3
29-Aug-02 3
30-Aug-02 28
31-Aug-02 39
1-Sep-02 62
2-Sep-02 101
3-Sep-02 89
4-Sep-02 53
5-Sep-02 34
6-Sep-02 27
7-Sep-02 29
8-Sep-02 55
9-Sep-02 70
10-Sep-02 68
11-Sep-02 60
12-Sep-02 37
13-Sep-02 27
14-Sep-02 27
15-Sep-02 38
16-Sep-02 28
17-Sep-02
18-Sep-02
19-Sep-02
20-Sep-02
21-Sep-02 3
22-Sep-02 8
23-Sep-02 114
24-Sep-02 123
25-Sep-02 163
26-Sep-02 202
27-Sep-02 129
28-Sep-02 120
29-Sep-02 91
30-Sep-02 71
1-Oct-02 79
2-Oct-02 85
3-Oct-02 85
4-Oct-02 94
5-Oct-02 87
6-Oct-02 46
7-Oct-02 49
8-Oct-02 29
9-Oct-02 29
10-Oct-02 30
11-Oct-02 23
12-Oct-02 24
13-Oct-02 48
14-Oct-02 93
15-Oct-02 123
16-Oct-02 108
17-Oct-02 126
18-Oct-02 103
19-Oct-02 97
20-Oct-02 108
21-Oct-02 76
22-Oct-02 85
23-Oct-02 81
24-Oct-02 68
25-Oct-02 64
26-Oct-02 57
27-Oct-02 53
28-Oct-02 52
29-Oct-02 57
30-Oct-02 56
31-Oct-02 51
1-Nov-02 51
2-Nov-02 60
3-Nov-02 100
4-Nov-02 120
5-Nov-02 169
6-Nov-02 205
7-Nov-02 243
8-Nov-02 211
9-Nov-02 179
10-Nov-02 198
11-Nov-02 192
12-Nov-02 188
13-Nov-02 215
14-Nov-02 176
15-Nov-02 193
16-Nov-02 226
17-Nov-02 205
18-Nov-02 200
19-Nov-02 128
20-Nov-02 98
21-Nov-02 82
22-Nov-02 62
23-Nov-02 113
24-Nov-02 135
25-Nov-02 164
26-Nov-02 152
27-Nov-02 130
28-Nov-02 122
29-Nov-02 105
30-Nov-02 110
1-Dec-02 132
2-Dec-02 168
3-Dec-02 157
4-Dec-02 173
5-Dec-02 183
6-Dec-02 161
7-Dec-02 193
8-Dec-02 191
9-Dec-02 162
10-Dec-02 182
11-Dec-02 137
12-Dec-02 121
13-Dec-02 113
14-Dec-02 79
15-Dec-02 77
16-Dec-02 126
17-Dec-02 167
18-Dec-02 203
19-Dec-02 157
20-Dec-02 138
21-Dec-02 133
22-Dec-02 113
23-Dec-02 181
24-Dec-02 198
25-Dec-02 141
26-Dec-02 139
27-Dec-02 137
28-Dec-02 154
29-Dec-02 174
30-Dec-02 169
31-Dec-02 151
1-Jan-03 124
2-Jan-03 121
3-Jan-03 138
4-Jan-03 155
5-Jan-03 161
6-Jan-03 174
7-Jan-03 183
8-Jan-03 171
9-Jan-03 167
10-Jan-03 146
11-Jan-03 135
12-Jan-03 119
13-Jan-03 127
14-Jan-03 111
15-Jan-03 106
16-Jan-03 105
17-Jan-03 78
18-Jan-03 94
19-Jan-03 121
20-Jan-03 110
21-Jan-03 114
22-Jan-03 110
23-Jan-03 87
24-Jan-03 94
25-Jan-03 100
26-Jan-03 118
27-Jan-03 154
28-Jan-03 178
29-Jan-03 160
30-Jan-03 149
31-Jan-03 137
1-Feb-03 127
2-Feb-03 143
3-Feb-03 155
4-Feb-03 128
5-Feb-03 128
6-Feb-03 104
7-Feb-03 83
8-Feb-03 78
9-Feb-03 78
10-Feb-03 86
11-Feb-03 114
12-Feb-03 110
13-Feb-03 99
14-Feb-03 89
15-Feb-03 78
16-Feb-03 71
17-Feb-03 65
18-Feb-03 65
19-Feb-03 67
20-Feb-03 61
21-Feb-03 67
22-Feb-03 68
23-Feb-03 63
24-Feb-03 65
25-Feb-03 54
26-Feb-03 50
27-Feb-03 73
28-Feb-03 73