Site ID: 2088 Lat. 34.9625 China Henan
River: Yellow (Huang He) Long. 113.5046
Site name: Huayuankou Contributing area: 846246 km2 Ratio to Comparison Station: 29.97
Latest measurement: 6-Sep-11 Mean annual runoff: 3 mm (2003-2009)
Hydrologic status: 2 Normal flow Total runoff this year (2010): 1.9 mm
Latest M/C ratio: 1.10 Seven day total: 0.0 mm
Estimated current discharge: 3 m3/sec Percent of mean 7-day total: 8.3 % (today's value compared to mean for same period, 2003-2009)
5 yr recurrence flood: 801 m3/sec (from Log Pearson III analysis)
Status Codes:  1 = Low flow or ice, 2 = Normal flow, 3 = Flood, 4 = Major Flood 813 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
0 2002 no data no data no data no data no data no data no data 0.0 0.1 0.1 0.1 0.0
1 2003 0.0 0.0 0.2 0.3 0.1 0.1 0.0 0.0 0.1 0.2 0.1 0.1
5 2004 0.0 0.6 0.9 0.6 0.7 1.5 0.5 0.0 0.0 0.0 0.0 0.1
4 2005 0.0 0.0 0.6 0.8 0.5 0.6 0.2 0.1 0.2 0.9 0.3 0.0
6 2006 0.0 0.1 0.9 0.7 0.5 1.3 0.7 0.4 0.5 0.5 0.0 0.0
4 2007 0.0 0.0 0.1 0.4 0.4 0.3 0.3 0.5 0.4 0.5 0.4 0.2
3 2008 0.0 0.1 0.7 0.2 0.3 0.5 0.4 0.0 0.1 0.1 0.1 0.0
2 2009 0.0 0.1 0.1 0.2 0.1 0.5 0.3 0.0 0.0 0.3 0.1 0.1
2 2010 0.0 0.1 0.2 0.3 0.0 0.1 0.5 0.2 0.1 0.2 0.1 0.1
Mean Annual Runoff (mm): 3 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 3
23-Jul-02 3
24-Jul-02 3
25-Jul-02 3
26-Jul-02 3
27-Jul-02 3
28-Jul-02 3
29-Jul-02 3
30-Jul-02 3
31-Jul-02 3
1-Aug-02 3
2-Aug-02 3
3-Aug-02
4-Aug-02
5-Aug-02
6-Aug-02
7-Aug-02
8-Aug-02
9-Aug-02 19
10-Aug-02 19
11-Aug-02 3
12-Aug-02 3
13-Aug-02 3
14-Aug-02 3
15-Aug-02 3
16-Aug-02 3
17-Aug-02 3
18-Aug-02 3
19-Aug-02 3
20-Aug-02 3
21-Aug-02 3
22-Aug-02 3
23-Aug-02 3
24-Aug-02 76
25-Aug-02 3
26-Aug-02 3
27-Aug-02 3
28-Aug-02 3
29-Aug-02 3
30-Aug-02 3
31-Aug-02 3
1-Sep-02 3
2-Sep-02 3
3-Sep-02 3
4-Sep-02 3
5-Sep-02 3
6-Sep-02 3
7-Sep-02 3
8-Sep-02 3
9-Sep-02 47
10-Sep-02 44
11-Sep-02 122
12-Sep-02 3
13-Sep-02 3
14-Sep-02 3
15-Sep-02 3
16-Sep-02
17-Sep-02
18-Sep-02
19-Sep-02
20-Sep-02
21-Sep-02 3
22-Sep-02 3
23-Sep-02 3
24-Sep-02 3
25-Sep-02 194
26-Sep-02 153
27-Sep-02 175
28-Sep-02 53
29-Sep-02 3
30-Sep-02 3
1-Oct-02 3
2-Oct-02 3
3-Oct-02 69
4-Oct-02 221
5-Oct-02 157
6-Oct-02 217
7-Oct-02 3
8-Oct-02 3
9-Oct-02 3
10-Oct-02 3
11-Oct-02 3
12-Oct-02 3
13-Oct-02 3
14-Oct-02 3
15-Oct-02 3
16-Oct-02 86
17-Oct-02 119
18-Oct-02 182
19-Oct-02 171
20-Oct-02 107
21-Oct-02 47
22-Oct-02 5
23-Oct-02 3
24-Oct-02 3
25-Oct-02 3
26-Oct-02 3
27-Oct-02 3
28-Oct-02 3
29-Oct-02 3
30-Oct-02 3
31-Oct-02 3
1-Nov-02 3
2-Nov-02 3
3-Nov-02 86
4-Nov-02 124
5-Nov-02 211
6-Nov-02 180
7-Nov-02 247
8-Nov-02 99
9-Nov-02 23
10-Nov-02 3
11-Nov-02 3
12-Nov-02 56
13-Nov-02 32
14-Nov-02 91
15-Nov-02 59
16-Nov-02 14
17-Nov-02 3
18-Nov-02 3
19-Nov-02 3
20-Nov-02 3
21-Nov-02 3
22-Nov-02 3
23-Nov-02 3
24-Nov-02 3
25-Nov-02 3
26-Nov-02 3
27-Nov-02 3
28-Nov-02 3
29-Nov-02 3
30-Nov-02 34
1-Dec-02 3
2-Dec-02 3
3-Dec-02 3
4-Dec-02 3
5-Dec-02 3
6-Dec-02 3
7-Dec-02 22
8-Dec-02 3
9-Dec-02 3
10-Dec-02 3
11-Dec-02 3
12-Dec-02 3
13-Dec-02 3
14-Dec-02 3
15-Dec-02 3
16-Dec-02 3
17-Dec-02 3
18-Dec-02 3
19-Dec-02 3
20-Dec-02 3
21-Dec-02 3
22-Dec-02 3
23-Dec-02 3
24-Dec-02 3
25-Dec-02 3
26-Dec-02 3
27-Dec-02 3
28-Dec-02 3
29-Dec-02 3
30-Dec-02 3
31-Dec-02 3
1-Jan-03 3
2-Jan-03 3
3-Jan-03 3
4-Jan-03 3
5-Jan-03 3
6-Jan-03 3
7-Jan-03 3
8-Jan-03 3
9-Jan-03 3
10-Jan-03 3
11-Jan-03 3
12-Jan-03 3
13-Jan-03 3
14-Jan-03 3
15-Jan-03 3
16-Jan-03 3
17-Jan-03 3
18-Jan-03 3
19-Jan-03 3
20-Jan-03 3
21-Jan-03 3
22-Jan-03 3
23-Jan-03 3
24-Jan-03 3
25-Jan-03 3
26-Jan-03 3
27-Jan-03 3
28-Jan-03 3
29-Jan-03 3
30-Jan-03 3
31-Jan-03 3
1-Feb-03 3
2-Feb-03 3
3-Feb-03 3
4-Feb-03 3
5-Feb-03 3
6-Feb-03 3
7-Feb-03 3
8-Feb-03 3
9-Feb-03 45
10-Feb-03 3
11-Feb-03 3
12-Feb-03 3
13-Feb-03 3
14-Feb-03 3
15-Feb-03 3
16-Feb-03 3
17-Feb-03 3
18-Feb-03 3
19-Feb-03 3
20-Feb-03 3
21-Feb-03 3
22-Feb-03 32
23-Feb-03 3
24-Feb-03 3
25-Feb-03 3
26-Feb-03 3
27-Feb-03 23
28-Feb-03 3
1-Mar-03 20
2-Mar-03 3
3-Mar-03 54
4-Mar-03 62
5-Mar-03 74
6-Mar-03 91
7-Mar-03 10
8-Mar-03 110
9-Mar-03 3
10-Mar-03 55
11-Mar-03 40
12-Mar-03 52
13-Mar-03 67
14-Mar-03 37
15-Mar-03 46
16-Mar-03 3
17-Mar-03 3
18-Mar-03 3
19-Mar-03 3
20-Mar-03 3
21-Mar-03 3
22-Mar-03 3
23-Mar-03 3
24-Mar-03 3
25-Mar-03 48
26-Mar-03 157
27-Mar-03 183
28-Mar-03 207
29-Mar-03 171
30-Mar-03 107
31-Mar-03 88
1-Apr-03 3
2-Apr-03 3
3-Apr-03 3
4-Apr-03 3
5-Apr-03 3
6-Apr-03 60
7-Apr-03 178
8-Apr-03 196
9-Apr-03 331
10-Apr-03 161
11-Apr-03 201
12-Apr-03 201
13-Apr-03 217
14-Apr-03 196
15-Apr-03 173
16-Apr-03 128
17-Apr-03 44
18-Apr-03 102
19-Apr-03 3
20-Apr-03 3
21-Apr-03 3
22-Apr-03 3
23-Apr-03 3
24-Apr-03 3
25-Apr-03 3
26-Apr-03 11
27-Apr-03 113