基于SPEI的广东省近50 a干旱时空特征
余兴湛, 蒲义良, 康伯乾

Spatial-temporal characteristics of drought in recent 50 years in Guangdong Province based on SPEI
YU Xingzhan, PU Yiliang, KANG Boqian
表2 1971—2020年广东省年尺度SPEI的EOF分解前5个模态贡献率
Tab.2 Contribution rates of the first five modes of EOF decomposition of annual scale SPEI in Guangdong Province during 1971-2020
模态 方差贡献率/% 累计方差贡献率/%
EOF1 51.62 51.62
EOF2 11.49 63.11
EOF3 6.40 69.51
EOF4 4.36 73.87
EOF5 2.50 76.37