Acta Geographica Sinica ›› 2016, Vol. 71 ›› Issue (1): 129-141.doi: 10.11821/dlxb201601010
• Climate Change • Previous Articles Next Articles
HE Hui1(), LIAO Xueping2, LU Hong1, CHEN Sirong1
Received:
2015-08-06
Revised:
2015-11-02
Online:
2016-01-31
Published:
2016-01-15
Supported by:
HE Hui,LIAO Xueping,LU Hong,CHEN Sirong. Features of long-cycle drought-flood abrupt alternation in South China during summer in 1961-2014[J].Acta Geographica Sinica, 2016, 71(1): 129-141.
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Tab. 1
Features of droughts and floods in South China during summer in typical years
年份 | 旱涝性质 | 区域平均LDFAI | 5-8月降水距平百分率(%) | 5-6月降水距平百分率(%) | 7-8月降水距平百分率(%) |
---|---|---|---|---|---|
1963年 | 旱 | 0.47 | -29.8 | -46.1 | -11.4 |
1989年 | 旱 | -0.15 | -20.7 | -35.8 | -7.4 |
1990年 | 旱 | -0.30 | -20.5 | -27.1 | -14.7 |
1994年 | 涝 | 0.57 | 41.7 | 24.8 | 62.2 |
2001年 | 涝 | 0.49 | 29.6 | 38.2 | 22.1 |
2008年 | 涝 | -0.46 | 25.8 | 43.3 | 6.0 |
1995年 | 旱转涝 | 2.41 | 2.8 | -17.4 | 25.7 |
1967年 | 旱转涝 | 2.20 | -6.8 | -30.2 | 19.6 |
2004年 | 旱转涝 | 2.07 | -5.6 | -25.7 | 16.0 |
2005年 | 涝转旱 | -2.19 | 9.9 | 35.3 | -17.6 |
1998年 | 涝转旱 | -1.95 | 5.3 | 25.6 | -17.9 |
2010年 | 涝转旱 | -1.67 | -8.9 | 13.2 | -29.5 |
Tab. 3
Interdecadal statistical features of precipitation and summer LDFAI across different climatic regions
气候区 | 统计量 | 1960s | 1970s | 1980s | 1990s | 2000s | 2010s |
---|---|---|---|---|---|---|---|
华南全区 | 5-6月降水距平百分率(%) | -4.7 | 2.5 | -8.5 | -1.00 | 5.57 | 15.24 |
7-8月降水距平百分率(%) | -4.0 | 0.3 | -6.74 | 10.95 | 3.20 | -9.26 | |
LDFAI指数 | 0.04 | -0.16 | 0.09 | 0.06 | 0.11 | -0.10 | |
LDFAI强度 | 0.83 | 0.56 | 0.33 | 0.94 | 1.13 | 0.87 | |
1区 | 5-6月降水距平百分率(%) | -13.8 | -1.1 | -20.3 | 12.1 | 9.9 | 33.0 |
7-8月降水距平百分率(%) | 6.5 | -5.8 | -11.0 | 21.9 | -1.8 | -24.7 | |
LDFAI指数 | 0.78 | 0.35 | 0.65 | -0.18 | -1.70 | -0.60 | |
LDFAI强度 | 1.12 | 0.82 | 1.30 | 1.34 | 2.64 | 1.24 | |
2区 | 5-6月降水距平百分率(%) | -7.8 | 3.2 | -8.7 | -0.8 | 8.8 | 13.3 |
7-8月降水距平百分率(%) | -0.8 | 6.3 | -2.9 | 0.8 | 1.3 | -11.6 | |
LDFAI指数 | 0.24 | -0.08 | 0.06 | -0.36 | -0.28 | -0.77 | |
LDFAI强度 | 0.86 | 0.66 | 0.82 | 0.93 | 1.48 | 0.87 | |
3区 | 5-6月降水距平百分率(%) | -3.0 | 11.8 | -12.1 | -10.7 | 6.2 | 19.2 |
7-8月降水距平百分率(%) | -14.6 | -1.8 | -3.3 | 14.1 | 11.4 | -14.3 | |
LDFAI指数 | -0.48 | -0.86 | 0.15 | 1.87 | 1.73 | -0.75 | |
LDFAI强度 | 1.16 | 1.40 | 0.30 | 2.49 | 2.74 | 0.75 | |
4区 | 5-6月降水距平百分率(%) | 3.1 | 4.4 | -4.8 | -11.1 | 8.9 | -1.4 |
7-8月降水距平百分率(%) | -1.0 | 0.7 | -7.9 | 19.8 | -4.4 | -18.3 | |
LDFAI指数 | -0.42 | -0.28 | -0.09 | 1.25 | -0.83 | -0.29 | |
LDFAI强度 | 1.10 | 1.42 | 0.52 | 1.82 | 0.98 | 0.63 | |
5区 | 5-6月降水距平百分率(%) | -13.5 | -5.0 | 21.4 | 13.1 | -20.7 | 11.8 |
7-8月降水距平百分率(%) | -14.0 | -1.0 | -7.5 | 0.9 | 12.7 | 21.9 | |
LDFAI指数 | -0.16 | 0.30 | -0.53 | -0.28 | 1.63 | 1.45 | |
LDFAI强度 | 0.68 | 1.29 | 1.18 | 0.88 | 1.79 | 1.89 |
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