华南地区1961-2014年夏季长周期旱涝急转特征
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何慧, 廖雪萍, 陆虹, 陈思蓉
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Features of long-cycle drought-flood abrupt alternation in South China during summer in 1961-2014
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Hui HE, Xueping LIAO, Hong LU, Sirong CHEN
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| 表3 各气候区降水和夏季LDFAI的年代际统计特征 |
| Tab. 3 Interdecadal statistical features of precipitation and summer LDFAI across different climatic regions |
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| 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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