1 引言
2 资料来源与方法介绍
2.1 资料来源
2.2 方法介绍
3 浮力频率特征
4 重力波特征
4.1 水平波长
图2 2014 -2017年山西太原地区对流层和下平流层重力波水平波长(a)、二者偏差(b)、绝对差(c)、相关系数(d), 以及在不同水平波长区间内占有率(e, f)的分布特征Fig.2 Distribution characteristics of gravity wave horizontal wavelength (a), and their deviations (b), absolute difference (c), coefficient of correlation (d), and occupancy rates in different horizontal wavelength ranges (e, f) in the troposphere and lower stratosphere in Taiyuan during 2014 -2017 |
4.2 垂直波长
图3 2014 -2017年山西太原地区对流层和下平流层重力波垂直波长(a) 、二者偏差(b)、绝对差(c)、相关系数(d), 以及在不同垂直波长区间内占有率(e, f)的分布特征Fig.3 Distribution characteristics of gravity wave vertical wavelength (a) in the troposphere and lower stratosphere, and their deviations (b), absolute difference (c), coefficient of correlation (d), and occupancy rates in different vertical wavelength ranges (e, f) in Taiyuan during 2014 -2017 |
4.3 周期
图4 2014 -2017年山西太原地区对流层和下平流层重力波周期(a)、二者偏差(b)、绝对差(c)、相关系数(d), 以及在不同周期区间内占有率(e, f)的分布特征Fig.4 Distribution characteristics of gravity wave period (a), and their deviations(b), absolute difference(c), coefficient of correlation(d), and occupancy rates in different period ranges(e, f) in the troposphere and lower stratosphere in Taiyuan during 2014 -2017 |
4.4 群速
图5 2014 -2017年山西太原地区对流层和下平流层重力波群速(a)、二者偏差(b)、绝对差(c)、相关系数(d)、以及在不同群速区间内占有率(e, f)的分布特征Fig.5 Distribution characteristics of gravity wave ground-based horizontal group velocity (a), their deviations (b), absolute difference (c), coefficient of correlation (d), and occupancy rates in different ground-based horizontal group velocity ranges (e, f) in the troposphere and lower stratosphere in Taiyuan during 2014 -2017 |
4.5 固有相速
图6 2014 -2017年山西太原地区对流层和下平流层重力波固有相速(a)、二者偏差(b)、绝对差(c)、相关系数(d), 以及不同固有相速区间内占有率(e, f)的分布特征Fig.6 Distribution characteristics of gravity wave horizontal phase velocity (a) and their deviations (b), absolute difference (c), coefficient of correlation (d), and occupancy rates in different horizontal phase velocity ranges (e, f) in the troposphere and lower stratosphere in Taiyuan during 2014 -2017 |
4.6 能量上传百分比
图7 2014 -2017年山西太原地区对流层和下平流层重力波能量上传百分比(a)、二者偏差(b)、绝对差(c)、相关系数(d), 以及在不同能量上传百分比区间内占有率(e, f)的分布特征Fig.7 Distribution characteristics of gravity wave fraction of upgoing energy (a) and their deviations (b), absolute difference (c), coefficient of correlation (d), and occupancy rates in different fraction of upgoing energy (e, f) in the troposphere and lower stratosphere in Taiyuan during 2014 -2017 |