| 基于微波辐射计和气溶胶激光雷达的边界层高度研究及应用 |
| |
| 引用本文： | 黄俊,廖碧婷,沈子琦,张志坚,蓝静,王春林.基于微波辐射计和气溶胶激光雷达的边界层高度研究及应用[J].热带气象学报,2022,38(2):180-192. |
| |
| 作者姓名： | 黄俊 廖碧婷 沈子琦 张志坚 蓝静 王春林 |
| |
| 作者单位： | 1.广州市气候与农业气象中心，广东 广州 511430 |
| |
| 基金项目： | 广州市科技计划项目202002020065广州市科技计划项目202002020076广东省科技计划项目2019B121201002广东省农业科技创新及推广项目2020KJ102 |
| |
| 摘 要： | 分别基于微波辐射计温湿度廓线资料的气块法、位温法和比湿法，地面气象资料的罗氏法及气溶胶激光雷达数据的梯度法，计算得出广州地区大气边界层高度，对比分析5种边界层高度结果及其与气象条件、空气质量之间的关系，结合典型大气污染过程分析边界层高度对PM2.5、O3浓度的影响。结果显示:（1）利用位温法、气块法、罗氏法、比湿法和梯度法计算得出广州地区平均边界层高度分别为2 207 m、1 239 m、901 m、717 m和660 m，位温法显著高估了广州地区的边界层高度；（2）利用气块法得出的混合层高度日变化能够较好地表征白天大气边界层演变特征，利用气块法和比湿法得出的白天混合层高度与近地面O3浓度有显著的正相关关系，相关系数在0.5以上，在O3污染防治中，应同时考虑边界层内垂直输送的影响；（3）利用梯度法得出的边界层高度在污染天气时与PM2.5浓度的相关性较好，能较好地表现出大气污染情况，在PM2.5污染天气过程分析中具有较好的应用价值。
|
| 关 键 词： | 微波辐射计 气溶胶激光雷达 边界层高度 O3 |
| 收稿时间： | 2020-12-24 |
RESEARCH AND APPLICATION OF BOUNDARY LAYER HEIGHT BASED ON MICROWAVE RADIOMETER AND AEROSOL LIDAR |
| |
| HUANG Jun,LIAO Biting,SHEN Ziqi,ZHANG Zhijian,LAN Jing,WANG Chunlin.RESEARCH AND APPLICATION OF BOUNDARY LAYER HEIGHT BASED ON MICROWAVE RADIOMETER AND AEROSOL LIDAR[J].Journal of Tropical Meteorology,2022,38(2):180-192. |
| |
| Authors: | HUANG Jun LIAO Biting SHEN Ziqi ZHANG Zhijian LAN Jing WANG Chunlin |
| |
| Affiliation: | 1.Guangzhou Climate and Agrometeorology Center, Guangzhou 511430, China2.Guangzhou Meteorological Observatory, Guangzhou 511430, China3.Meteorological Bureau of Huangpu District, Guangzhou 510530, China4.Guangzhou Emergency Warning Information Release Center, Guangzhou 511430, China5.Guangzhou Institute of Tropical and Marine Meteorology, China Meteorological Administration, Guangzhou 510641, China6.Southern Marine Science and Engineering Guangdong Laboratory, Zhuhai, 519082, China |
| |
| Abstract: | Based on microwave radiometer temperature and humidity profile data, the atmospheric boundary layer height of Guangzhou was obtained by using the air parcel method, potential temperature method, specific humidity method, Roche method, and gradient method. The results of five kinds of boundary layer heights and their relationships with meteorological conditions and air quality were compared and analyzed, and the influence of boundary layer heights on PM2.5 and O3 concentrations were analyzed in combination with typical air pollution processes. The results showed that: (1) The average boundary layer height in Guangzhou calculated by using the potential temperature method, air parcel method, Rochel method, specific humidity method and gradient method is 2207 m, 1239 m, 901 m, 717 m and 660 m, respectively. The boundary layer height in Guangzhou is significantly overestimated by using the potential temperature method. (2) The diurnal variation of mixing layer height obtained by using the air parcel method can better characterize the evolution characteristics of the atmospheric boundary layer in the daytime. The daytime mixing layer height obtained by using the air parcel method and the specific humidity method has a significant positive correlation with the near-surface O3 concentration, and the correlation coefficient is above 0.5. In the control of O3 pollution, the influence of vertical transport in the boundary layer should be considered. (3) The boundary layer height obtained by using the gradient method has a good correlation with PM2.5 concentration during pollution days, which can better show the atmospheric pollution, and can be applied to the analysis of PM2.5 pollution process. |
| |
| Keywords: | microwave radiometer aerosol lidar boundary layer height ozone |
|
| 点击此处可从《热带气象学报》浏览原始摘要信息 |
|
点击此处可从《热带气象学报》下载全文 |
|
