Shift in the Temporal Trend of Boundary Layer Height in China Using Long-Term (1979-2016) Radiosonde Data

被引：138

作者：

Guo, Jianping ^{[1
]}

Li, Yuan ^{[1
]}

Cohen, Jason Blake ^{[2
]}

Li, Jian ^{[1
]}

Chen, Dandan ^{[1
]}

Xu, Hui ^{[1
]}

Liu, Lin ^{[1
]}

Yin, Jinfang ^{[1
]}

Hu, Kaixi ^{[3
]}

Zhai, Panmao ^{[1
]}

机构：

[1] Chinese Acad Meteorol Sci, State Key Lab Severe Weather, Beijing, Peoples R China

[2] Sun Yat Sen Univ, Sch Atmospher Sci, Zhuhai, Peoples R China

[3] China Meteorol Adm, Natl Meteorol Informat Ctr, Beijing, Peoples R China

来源：

GEOPHYSICAL RESEARCH LETTERS | 2019年 / 46卷 / 11期

基金：

中国国家自然科学基金;

关键词：

boundary layer height; China; trend; shift; radiosonde; AIR-POLLUTION; PART I; AEROSOL; MODEL; PRECIPITATION; MOISTURE; LIDAR;

D O I：

10.1029/2019GL082666

中图分类号：

P [天文学、地球科学];

学科分类号：

07 ;

摘要：

The knowledge regarding how the boundary layer height (BLH) changes over time is still poor. Here we analyze the spatial and temporal changes in radiosonde-derived measurements of BLH over China from 1979 to 2016. A qualitatively robust and abrupt change of BLH occurred in 2004. Over the former period (from 1979 to 2003) a spatially uniform increase was found in the BLH, while over the latter period BLH decreased in a spatially nonuniform way. Second, the meteorological influence on the rising BLH was determined to have a negative association with soil moisture, lower tropospheric stability and relative humidity, and a positive association with the near-surface temperature. Yet, there was a different influence of meteorology on the BLH over the latter period, where a negative association was revealed with T-sfc and relative humidity. These findings shed new light on the long-term changes in air pollution across China.

引用

页码：6080 / 6089

页数：10

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