秦岭北麓盛夏典型突发性降水过程中低层风特征 |
刘嘉慧敏, 李明, 欧阳雨, 吉庆, 王青霞, 李文耀, 李涵钰 |
Characteristics of low-level wind during typical sudden precipitation processes at the northern foot of Qinling Mountains in midsummer |
LIU Jiahuimin, LI Ming, OUYANG Yu, JI Qing, WANG Qingxia, LI Wenyao, LI Hanyu |
图9 2023年8月6日10:00 (a、b)、2023年7月12日19:00 (c、d)、2022年8月3日17:00 (e、f)长安区及周边925 hPa假相当位温(等值线,单位:K)、锋生函数(填色,单位:10-9 K·m-1·s-1)空间分布(a、c、e),假相当位温(等值线,单位:K)、锋生函数(填色,单位:10-9 K·m-1·s-1)及风场(风矢,单位:m·s-1)沿降水中心所在纬度的经度-高度剖面(b、d、f) (红色方框为秦岭北麓锋生区,灰色阴影为地形) |
Fig.9 The spatial distribution of potential pseudo-equivalent temperature (isolines, Unit: K) and frontogenesis function (the color shaded, Unit: 10-9 K·m-1·s-1) at 925 hPa over Chang’an and surrounding areas (a, c, e), the longitude-height sections of the potential pseudo-equivalent temperature (isolines, Unit: K), frontogenesis function (the color shaded, Unit: 10-9 K·m-1·s-1) and wind field (wind vectors, Unit: m·s-1) along the latitude of the precipitation center (b, d, f) at 10:00 on 6 August 2023 (a, b), 19:00 on 12 July 2023 (c, d), 17:00 on 3 August 2022 (e, f) (The red box represents the frontogenetical area at the northern foot of Qinling Mountains, the gray shaded for terrain) |
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