利用2008年1—2月常规观测数据、ERA-Interim再分析数据和DEM地形高度数据,从环流形势、天气系统及锋生函数诊断3方面分析了2008年初昆明准静止锋生消及移动的成因.结果表明:锋面位置和锋面前后冷暖气团的相对强弱、锋后东风的强度、南...利用2008年1—2月常规观测数据、ERA-Interim再分析数据和DEM地形高度数据,从环流形势、天气系统及锋生函数诊断3方面分析了2008年初昆明准静止锋生消及移动的成因.结果表明:锋面位置和锋面前后冷暖气团的相对强弱、锋后东风的强度、南支槽强度和位置、西太平洋副热带高压和各系统配置有关;锋生初期,风场的变化快于温度场,东风的强度和厚度可指示冷空气的强度和厚度;锋生区东西跨度约2~3个经度,可视为静止锋的锋区宽度,当锋生区整体西进至104°E以西,锋面可越上云贵高原西部,西进时锋生区向上可超过700 h Pa;水平辐散项对锋生和锋面西进更有预见性,水平变形项中切变变形起主要作用,垂直运动倾斜项对锋消的作用较大,非绝热加热项对锋面的生消及西进均有正的贡献.展开更多
Based on the field investigation of the building types and damage caused to them by the Hutubi M_S6.2 earthquake on December 8,2016,we analyzed the damage characteristics and causes for different types of buildings. I...Based on the field investigation of the building types and damage caused to them by the Hutubi M_S6.2 earthquake on December 8,2016,we analyzed the damage characteristics and causes for different types of buildings. In conclusion we put forward some suggestions for the restoration and reconstruction in the earthquake affected area in future.展开更多
文摘利用2008年1—2月常规观测数据、ERA-Interim再分析数据和DEM地形高度数据,从环流形势、天气系统及锋生函数诊断3方面分析了2008年初昆明准静止锋生消及移动的成因.结果表明:锋面位置和锋面前后冷暖气团的相对强弱、锋后东风的强度、南支槽强度和位置、西太平洋副热带高压和各系统配置有关;锋生初期,风场的变化快于温度场,东风的强度和厚度可指示冷空气的强度和厚度;锋生区东西跨度约2~3个经度,可视为静止锋的锋区宽度,当锋生区整体西进至104°E以西,锋面可越上云贵高原西部,西进时锋生区向上可超过700 h Pa;水平辐散项对锋生和锋面西进更有预见性,水平变形项中切变变形起主要作用,垂直运动倾斜项对锋消的作用较大,非绝热加热项对锋面的生消及西进均有正的贡献.
基金sponsored by the Key Youth Emergency Task,China Earthquake Administration(CEA_EDEM_201620)
文摘Based on the field investigation of the building types and damage caused to them by the Hutubi M_S6.2 earthquake on December 8,2016,we analyzed the damage characteristics and causes for different types of buildings. In conclusion we put forward some suggestions for the restoration and reconstruction in the earthquake affected area in future.
