Preliminary Evaluation of the HOBO Data Logging Rain Gauge at the Chuzhou Hydrological Experiment Station, China
Table 2
Total precipitation (mm) and BIAS (%) for 11 rain gauges against the manual gauge in five rainfall events at hydrometeorological observation field.
Manual gauge (mm)
JDZ (0.1 mm)
JDZ (0.2 mm)
JDZ (0.5 mm)
JDZ (1.0 mm)
TJ (0.5 mm)
TR-525 (0.254 mm)
JDZ01-1
JDZ01-2
JDZ02-1
JDZ02-2
JDZ05-1
JDZ05-2
JDZ10-1
JDZ10-2
TJ05-1
TJ05-2
2017 03/19 05:01–03/20 08:00
Total (mm)
8
6.4
6
7.4
7
7
7
8
6
8.5
7.5
9.144
BIAS (%)
0
−20.00
−25.00
−7.50
−12.50
−12.50
−12.50
0
−25.00
6.25
−6.25
14.30
2017 04/04 17:01–04/06 16:00
Total (mm)
16
13.8
13.3
16
15.4
16
16.5
17
16
16.5
16.5
19.812
BIAS (%)
0
−13.75
−16.88
0
−3.75
0
3.13
6.25
0
3.13
3.13
23.83
2017 04/08 19:01–04/11 01:00
Total (mm)
42
30.4
34.9
42.4
41.4
43
43
45
42
42.5
44
53.086
BIAS (%)
0
−27.62
−16.9
0.95
−1.43
2.38
2.38
7.14
0
1.19
4.76
26.40
2017 04/16 18:01–04/17 05:00
Total (mm)
4
3.3
3.1
3.8
3.6
4
4
4
3
4
4.5
4.826
BIAS (%)
0
−17.5
−22.5
−5
−10
0
0
0
−25
0
12.5
20.65
2017 05/03 23:01–05/04 08:00
Total (mm)
29.2
28
24.4
28.8
28
29.5
29.5
30
27
30
30
36.322
BIAS (%)
0
−4.11
−16.44
−1.37
−4.11
1.03
1.03
2.74
−7.53
2.74
2.74
24.39
MB (%)
0
−18.07
−4.47
−1.51
−4.14
3.02
21.92
Notes: MB = mean BIAS of same model gauges; JDZ01-1 = No.1 JDZ01 rain gauge; JDZ01-2 = No.2 JDZ01 rain gauge; other models of rain gauge are the same as above.
