Site ID: 1037 Lat. 34.6152 USA 0
River: Little Colorado Long. -109.3967
Site name: 0 Contributing area: 7489 km2 Ratio to Comparison Station: 0.27
Latest measurement: 29-Jul-10 Mean annual runoff: 1026 mm (2003-2009)
Hydrologic status: 2 Normal flow Total runoff this year (2010): 448.7 mm
Latest M/C ratio: 1.21 Seven day total: 60.1 mm
Estimated current discharge: 427 m3/sec Percent of mean 7-day total: 158.3 % (today's value compared to mean for same period, 2003-2009)
5 yr recurrence flood: 1514 m3/sec (from Log Pearson III analysis)
Status Codes:  1 = Low flow or ice, 2 = Normal flow, 3 = Flood, 4 = Major Flood 1459 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
783 2002 no data no data no data no data no data no data no data 128.9 298.6 178.7 115.3 61.2
959 2003 13.5 45.5 21.0 33.6 26.2 9.1 98.3 177.3 194.8 156.4 103.5 79.2
1340 2004 39.3 3.4 78.1 41.9 74.9 107.3 202.0 261.0 221.0 178.9 122.2 10.5
802 2005 68.6 61.1 40.4 35.7 68.9 62.7 8.3 139.4 107.5 88.5 88.6 32.6
1024 2006 42.0 59.2 42.9 64.7 26.5 72.6 113.9 318.2 149.9 133.5 0.0 0.0
944 2007 3.9 10.3 55.9 73.2 89.1 95.0 135.7 238.3 74.9 87.0 68.9 11.6
991 2008 1.2 1.1 9.0 20.6 66.2 131.5 195.6 181.7 126.2 119.9 92.6 44.9
1121 2009 4.0 20.0 47.9 45.0 119.7 183.3 126.7 184.2 176.6 91.1 77.7 45.4
449 2010 1.8 1.0 8.9 47.3 118.0 142.0 122.6 7.1 0.0 0.0 0.0 0.0
Mean Annual Runoff (mm): 1026 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-02 337
23-Jul-02 337
24-Jul-02 408
25-Jul-02 507
26-Jul-02 567
27-Jul-02 562
28-Jul-02 584
29-Jul-02 314
30-Jul-02 413
31-Jul-02 441
1-Aug-02 441
2-Aug-02 614
3-Aug-02
4-Aug-02
5-Aug-02
6-Aug-02
7-Aug-02
8-Aug-02
9-Aug-02 517
10-Aug-02 478
11-Aug-02 478
12-Aug-02 435
13-Aug-02 394
14-Aug-02 444
15-Aug-02 375
16-Aug-02 498
17-Aug-02 480
18-Aug-02 459
19-Aug-02 506
20-Aug-02 436
21-Aug-02 438
22-Aug-02 430
23-Aug-02 268
24-Aug-02 341
25-Aug-02 370
26-Aug-02 358
27-Aug-02 442
28-Aug-02 348
29-Aug-02 268
30-Aug-02 674
31-Aug-02 680
1-Sep-02 807
2-Sep-02 775
3-Sep-02 609
4-Sep-02 584
5-Sep-02 591
6-Sep-02 578
7-Sep-02 615
8-Sep-02 553
9-Sep-02 619
10-Sep-02 822
11-Sep-02 945
12-Sep-02 1091
13-Sep-02 1739
14-Sep-02 1993
15-Sep-02 2676
16-Sep-02 2676
17-Sep-02
18-Sep-02
19-Sep-02
20-Sep-02
21-Sep-02
22-Sep-02 1019
23-Sep-02 1019
24-Sep-02 957
25-Sep-02 915
26-Sep-02 866
27-Sep-02 852
28-Sep-02 838
29-Sep-02 870
30-Sep-02 870
1-Oct-02 778
2-Oct-02 734
3-Oct-02 641
4-Oct-02 616
5-Oct-02 503
6-Oct-02 423
7-Oct-02 358
8-Oct-02 344
9-Oct-02 415
10-Oct-02 500
11-Oct-02 412
12-Oct-02 364
13-Oct-02 404
14-Oct-02 377
15-Oct-02 386
16-Oct-02 400
17-Oct-02 378
18-Oct-02 385
19-Oct-02 704
20-Oct-02 720
21-Oct-02 694
22-Oct-02 754
23-Oct-02 608
24-Oct-02 476
25-Oct-02 510
26-Oct-02 349
27-Oct-02 329
28-Oct-02 458
29-Oct-02 457
30-Oct-02 502
31-Oct-02 506
1-Nov-02 382
2-Nov-02 245
3-Nov-02 223
4-Nov-02 174
5-Nov-02 174
6-Nov-02 173
7-Nov-02 179
8-Nov-02 184
9-Nov-02 121
10-Nov-02 89
11-Nov-02 168
12-Nov-02 292
13-Nov-02 491
14-Nov-02 492
15-Nov-02 538
16-Nov-02 465
17-Nov-02 404
18-Nov-02 369
19-Nov-02 376
20-Nov-02 406
21-Nov-02 425
22-Nov-02 435
23-Nov-02 432
24-Nov-02 432
25-Nov-02 395
26-Nov-02 368
27-Nov-02 431
28-Nov-02 397
29-Nov-02 353
30-Nov-02 379
1-Dec-02 336
2-Dec-02 417
3-Dec-02 519
4-Dec-02 552
5-Dec-02 486
6-Dec-02 300
7-Dec-02 259
8-Dec-02 197
9-Dec-02 205
10-Dec-02 270
11-Dec-02 288
12-Dec-02 290
13-Dec-02 234
14-Dec-02 203
15-Dec-02 148
16-Dec-02 161
17-Dec-02 120
18-Dec-02 112
19-Dec-02 161
20-Dec-02 15
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 26
21-Jan-03 35
22-Jan-03 95
23-Jan-03 116
24-Jan-03 91
25-Jan-03 102
26-Jan-03 71
27-Jan-03 64
28-Jan-03 119
29-Jan-03 141
30-Jan-03 119
31-Jan-03 127
1-Feb-03 117
2-Feb-03 137
3-Feb-03 165
4-Feb-03 180
5-Feb-03 191
6-Feb-03 195
7-Feb-03 135
8-Feb-03 123
9-Feb-03 108
10-Feb-03 130
11-Feb-03 74
12-Feb-03 49
13-Feb-03 3
14-Feb-03 3
15-Feb-03 3
16-Feb-03 164
17-Feb-03 278
18-Feb-03 239
19-Feb-03 285
20-Feb-03 143
21-Feb-03 104
22-Feb-03 95
23-Feb-03 74
24-Feb-03 86
25-Feb-03 82
26-Feb-03 77
27-Feb-03 317
28-Feb-03 390
1-Mar-03 357
2-Mar-03 497
3-Mar-03 3
4-Mar-03 3
5-Mar-03 3
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 78
13-Mar-03 81
14-Mar-03 75
15-Mar-03 109
16-Mar-03 96
17-Mar-03 49
18-Mar-03 57
19-Mar-03 3
20-Mar-03 3
21-Mar-03 3
22-Mar-03 3
23-Mar-03 3
24-Mar-03 71
25-Mar-03 78
26-Mar-03 64
27-Mar-03 62
28-Mar-03 55
29-Mar-03 42
30-Mar-03 3
31-Mar-03 3
1-Apr-03 3
2-Apr-03 27