西北干旱区一次极端暴雨局地性增强的对流环境特征
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傅朝( ), 刘维成( ), 宋兴宇, 徐丽丽, 沙宏娥, 马莉, 崔宇
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Local enhanced convective environment characteristics of an extreme rainstorm event in arid region of Northwest China
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FU Zhao( ), LIU Weicheng( ), SONG Xingyu, XU Lili, SHA Honge, MA Li, CUI Yu
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图11. 2022年8月12日20:00 850 hPa比湿(绿色等值线,单位g·kg-1)、锋生函数(彩色填色区,单位K·m-1·s-1)、风场(箭矢,单位:m·s-1)(a)和锋生函数(彩色填色区,单位:K·m-1·s-1)、垂直速度(灰色等值线,单位:hPa·s-1)、风场(箭矢,水平风在剖面方向投影与垂直速度合成,单位:m·s-1)垂直剖面(b) [图11(a)灰色填充区的地面气压小于700 hPa;图11(b)的左上角为剖线示意图,黑色区域为地形。下同]
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Fig.11. The specific humidity(green isolines, Unit: g·kg-1), frontogenesis function (color shaded areas, Unit: K·m-1·s-1), wind vector (arrow vectors, Unit:m·s-1) at 850hPa (a), and vertical profiles of frontogenesis function (color shaded areas, Unit: K·m-1·s-1), vertical velocity (gray isolines, Unit: hPa·s-1), wind (arrow vector , the composite of vertical velocity with the projection of horizontal wind,Unit:m·s-1) (b) at 20:00 BST on August 12, 2022 (The surface pressure for the gray filled areas in Fig. 11(a) is less than 700 hPa;the left corner in Fig. 11 (b) is diagram of the profile line and the black areas for the terrain. the same as below)
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