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京津冀地区“23·7”特大暴雨精细化特征及成因分析
姬雪帅1,2(), 康博思2, 侯晓琦2, 郭旭晖2, 石文伯2, 黄山江2()
Refined characteristics and cause analysis of the “23·7” extraordinary heavy rainfall in Beijing-Tianjin-Hebei region
JI Xueshuai1,2(), KANG Bosi2, HOU Xiaoqi2, GUO Xuhui2, SHI Wenbo2, HUANG Shanjiang2()

图9. 2023年7月30日14:00(a、c)和31日14:00(b、d)925 hPa锋生函数水平散度项(灰色阴影,单位:10-9 K·m-1·s-1)叠加散度(等值线,单位:10-5 s-1)(a、b)和锋生函数水平变形项(灰色阴影,单位:10-9 K·m-1·s-1)叠加切变变形(等值线,单位:10-5 s-1)(c、d)

Fig.9. Horizontal divergence term of frontogenetic function (the grey shaded, Unit: 10-9 K·m-1·s-1 ) superimposed divergence (isolines, Unit: 10-5 s-1) (a, b) and horizontal deformation term of frontogenetic function (the grey shaded, Unit: 10-9 K·m-1·s-1) superimposed shear deformation (isolines, Unit: 10-5 s-1) (c, d) at 925 hPa at 14:00 on 30 (a, c) and 14:00 on 31 (b, d) July 2023