Probability Modeling of Precipitation Extremes over Two River Basins in Northwest of China
Table 1
Basic information of 13 meteorological stations over study areas and their statistics on annual precipitation.
River basin
Station name
Station ID
Latitude
Longitude
Elevation (m a.s.l)
Mean (mm)
Median (mm)
Maximum (mm)
Minimum (mm)
Cv
Skew
Kurt
Heihe River basin
Tuole
TL
38°48′
98°25′
3367
294.6
294.1
404.4 (1998)
180.7 (1997)
0.18
0.20
−0.36
Yeniugou
YNG
38°25′
99°35′
3320
414.0
411.3
602.3 (1998)
274.9 (1991)
0.16
0.46
0.59
Qilian
QL
38°11′
100°15′
2787
404.8
394.2
573.1 (1998)
309.1 (1970)
0.13
1.03
1.28
Shandan
SD
38°48′
101°05′
1764
200.1
195.1
301.2 (1983)
97.8 (1985)
0.22
0.33
0.28
Zhangye
ZY
38°56′
100°26′
1482
130.0
128.8
214.3 (1983)
69.5 (1962)
0.26
0.46
0.39
Gaotai
GT
39°22′
99°50′
1332
109.7
109.7
209.9 (1979)
54.9 (1984)
0.31
0.87
0.93
Jiuquan
JQ
39°46′
98°29′
1477
87.1
83.8
165.7 (1979)
41.4 (1965, 1985)
0.38
0.78
−0.17
Dingxin
DX
40°18′
99°31′
1177
55.5
50.7
119.8 (1979)
24.2 (1961)
0.38
0.82
0.47
Ejinaqi
EJNQ
41°57′
101°04′
940
34.9
28.0
101.1 (1969)
7.0 (1983)
0.56
1.23
1.57
Shiyang River basin
Wushaoling
WSL
37°12′
102°52′
3045
395.7
401.0
555.2 (1961)
231.3 (1962)
0.19
−0.16
0.03
Wuwei
WW
37°55′
102°40′
1530
168.3
170.5
251.3 (1993)
91.0 (1962)
0.24
0.11
−0.70
Yongchang
YC
38°14′
101°58′
1976
202.0
199.8
294.6 (2007)
110.5 (1991)
0.20
0.21
0.22
Minqin
MQ
38°38′
103°05′
1367
114.9
111.8
202.0 (1994)
42.2 (1962)
0.28
0.35
0.25
Note: All the statistics on annual precipitation are calculated based on the historical daily records from 1960 to 2010. The year in which the minimum and maximum precipitation occurred is shown in the bracket.
