A Comprehensive Analysis of the Changes in Precipitation Patterns over Beijing during 1960–2012

Table 5

Results of change-point detection for different stations based on the Pettitt test.


Stations	Entire series	Change point		Prior series	Posterior series	Ratio of change¹

FS	568.6	1996	0.229	599.0	496.4	−0.17
GBD	570.2	1998	0.494	591.5	509.3	−0.13
GT	374.4	1993	1.553	369.6	383.8	0.03
HR	641.7	1998	0.190	678.4	549.8	−0.19
HC	526.0	1998	0.773	546.3	467.9	−0.14
HHC	593.7	1998	0.465	617.9	524.6	−0.14
MJQ	496.8	1998	0.373	520.9	426.6	−0.17
MY	641.1	1998	0.672	675.1	543.9	−0.19
NGZ	437.1	2006	0.604	422.6	550.2	0.26
PG	511.3	1997	0.060	541.9	431.7	−0.20
QJD	429.7	1992	0.571	440.1	404.8	−0.07
SJD	577.1	1996	0.921	597.6	527.7	−0.11
SH	539.1	1972	0.841	498.6	553.2	0.09
SY	564.3	1998	0.502	598.4	466.9	−0.21
SLZ	586.0	1998	0.344	612.0	511.6	−0.16
SZ	580.8	1998	0.773	602.4	522.1	−0.13
THK	464.0	1998	0.295	484.6	404.9	−0.15
TYK	604.6	1998	0.130	642.1	497.3	−0.22
TZ	584.1	1998	0.487	611.0	507.1	−0.16
WJY	550.0	1979	0.338	622.1	504.1	−0.20
XYL	612.0	1996	0.183	643.8	537.9	−0.16
XH	628.9	1975	1.046	573.6	654.2	0.12
YQ	449.0	1973	0.672	492.4	433.2	−0.12
YC	467.4	1979	0.213	513.8	438.8	−0.14
YAM	565.3	1998	0.285	591.4	490.7	−0.16
YLZ	527.3	1998	0.587	547.6	469.2	−0.14
ZT	448.6	1996	0.094	471.8	393.8	−0.15
ZF	598.2	1996	1.282	614.0	564.6	−0.08
ZJF	618.5	1975	0.451	561.5	644.7	0.12
ZLY	652.4	1998	0.176	689.4	546.9	−0.20

Note.¹The ratio of change is equal to the differences of mean precipitation between prior series and posterior series dividing the mean precipitation at the entire series. Significant abrupt change at a level of α = 0.10.

Advances in Meteorology

A Comprehensive Analysis of the Changes in Precipitation Patterns over Beijing during 1960–2012

Table 5