Site ID: 2235 Lat. -2.2708 Indonesia Kalimantan Tengah
River: Kahayan Long. 114.0547
Site name: Tumbangnus Contributing area: 13393 km2 Ratio to Comparison Station: 0.47
Latest measurement: 12-Jul-10 Mean annual runoff: 575 mm (2003-2009)
Hydrologic status: 2 Normal flow Total runoff this year (2010): 954.3 mm
Latest M/C ratio: 1.25 Seven day total: 29.0 mm
Estimated current discharge: 560 m3/sec Percent of mean 7-day total: 177.7 % (today's value compared to mean for same period, 2003-2009)
5 yr recurrence flood: 2356 m3/sec (from Log Pearson III analysis)
Status Codes:  1 = Low flow or ice, 2 = Normal flow, 3 = Flood, 4 = Major Flood 2366 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
58 2002 no data no data no data no data no data no data no data 1.5 0.5 15.6 15.2 25.6
287 2003 23.1 33.0 14.6 71.3 46.8 1.7 0.7 9.1 6.6 0.7 1.3 78.6
256 2004 28.6 31.8 23.9 7.1 91.4 18.4 5.9 11.2 0.6 1.7 2.0 33.7
570 2005 48.4 55.1 91.2 107.3 121.9 13.4 25.3 7.4 1.4 58.8 1.6 38.6
509 2006 81.4 68.2 34.4 111.6 60.7 66.7 61.3 20.2 2.8 2.2 0.0 0.0
1107 2007 46.0 124.1 130.8 166.3 166.5 100.3 66.3 19.6 83.7 7.6 66.6 129.6
661 2008 107.9 55.8 46.4 70.9 73.9 22.9 11.7 3.6 34.1 10.0 110.0 113.7
634 2009 37.7 43.2 102.3 97.2 56.9 8.1 6.0 14.0 2.5 1.9 10.4 253.7
954 2010 208.7 168.3 158.7 157.1 108.3 114.6 38.7 0.0 0.0 0.0 0.0 0.0
Mean Annual Runoff (mm): 575 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 11
31-Jul-02 104
1-Aug-02 81
2-Aug-02 57
3-Aug-02
4-Aug-02
5-Aug-02
6-Aug-02
7-Aug-02
8-Aug-02
9-Aug-02
10-Aug-02 3
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 3
25-Aug-02 3
26-Aug-02 3
27-Aug-02 3
28-Aug-02 3
29-Aug-02 21
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 3
10-Sep-02 3
11-Sep-02 3
12-Sep-02 3
13-Sep-02 3
14-Sep-02 3
15-Sep-02
16-Sep-02
17-Sep-02
18-Sep-02
19-Sep-02
20-Sep-02
21-Sep-02
22-Sep-02 3
23-Sep-02 3
24-Sep-02 3
25-Sep-02 3
26-Sep-02 3
27-Sep-02 3
28-Sep-02 3
29-Sep-02 3
30-Sep-02 3
1-Oct-02 3
2-Oct-02 3
3-Oct-02 3
4-Oct-02 3
5-Oct-02 3
6-Oct-02 3
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-02 503
16-Oct-02 269
17-Oct-02 357
18-Oct-02 215
19-Oct-02 3
20-Oct-02 3
21-Oct-02 3
22-Oct-02 3
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-02 987
1-Nov-02 613
2-Nov-02 517
3-Nov-02 126
4-Nov-02 3
5-Nov-02 3
6-Nov-02 3
7-Nov-02 3
8-Nov-02 3
9-Nov-02 3
10-Nov-02 3
11-Nov-02 3
12-Nov-02 93
13-Nov-02 230
14-Nov-02 275
15-Nov-02 275
16-Nov-02 3
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 77
24-Nov-02 77
25-Nov-02 3
26-Nov-02 3
27-Nov-02 3
28-Nov-02 3
29-Nov-02 3
30-Nov-02 3
1-Dec-02 3
2-Dec-02 3
3-Dec-02 3
4-Dec-02 314
5-Dec-02 233
6-Dec-02 342
7-Dec-02 310
8-Dec-02 261
9-Dec-02 3
10-Dec-02 3
11-Dec-02 3
12-Dec-02 3
13-Dec-02 82
14-Dec-02 33
15-Dec-02 3
16-Dec-02 3
17-Dec-02 3
18-Dec-02 91
19-Dec-02 53
20-Dec-02 129
21-Dec-02 239
22-Dec-02 228
23-Dec-02 330
24-Dec-02 449
25-Dec-02 312
26-Dec-02 312
27-Dec-02 207
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-03 210
4-Jan-03 392
5-Jan-03 182
6-Jan-03 210
7-Jan-03 192
8-Jan-03 85
9-Jan-03 271
10-Jan-03 303
11-Jan-03 303
12-Jan-03 194
13-Jan-03 252
14-Jan-03 181
15-Jan-03 176
16-Jan-03 269
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-03 233
31-Jan-03 73
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 3
10-Feb-03 53
11-Feb-03 157
12-Feb-03 157
13-Feb-03 503
14-Feb-03 500
15-Feb-03 625
16-Feb-03 475
17-Feb-03 336
18-Feb-03 435
19-Feb-03 435
20-Feb-03 413
21-Feb-03 458
22-Feb-03 254
23-Feb-03 3
24-Feb-03 3
25-Feb-03 3
26-Feb-03 3
27-Feb-03 139
28-Feb-03 139
1-Mar-03 3
2-Mar-03 85
3-Mar-03 178
4-Mar-03 88
5-Mar-03 89
6-Mar-03 3
7-Mar-03 3
8-Mar-03 3
9-Mar-03 3
10-Mar-03 3
11-Mar-03 3
12-Mar-03 3
13-Mar-03 3
14-Mar-03 3
15-Mar-03 3
16-Mar-03 3
17-Mar-03 3
18-Mar-03 3
19-Mar-03 160
20-Mar-03 26
21-Mar-03 82
22-Mar-03 89
23-Mar-03 89
24-Mar-03 461
25-Mar-03 250
26-Mar-03 128
27-Mar-03 3
28-Mar-03 3
29-Mar-03 3
30-Mar-03 3
31-Mar-03 473
1-Apr-03 473
2-Apr-03 521
3-Apr-03 504
4-Apr-03 231
5-Apr-03 310
6-Apr-03 271
7-Apr-03 308
8-Apr-03 579
9-Apr-03 24
10-Apr-03 139
11-Apr-03 3
12-Apr-03 3
13-Apr-03 43
14-Apr-03 64
15-Apr-03 3
16-Apr-03 129
17-Apr-03 129
18-Apr-03 24
19-Apr-03 158
20-Apr-03 311
21-Apr-03 406
22-Apr-03 520
23-Apr-03 291
24-Apr-03 291
25-Apr-03 190
26-Apr-03 507
27-Apr-03 1118
28-Apr-03 1047
29-Apr-03 1302
30-Apr-03 1148
1-May-03 824
2-May-03 488
3-May-03 488
4-May-03 50
5-May-03 22