东亚、北非干旱半干旱区边界层高度变化及其影响因素

赵艳茹; 毛文茜; 张珂铨; 牛笑应; 李佳芸; 张文煜

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东亚、北非干旱半干旱区边界层高度变化及其影响因素

论文 | 更新时间：2023-12-11

- 东亚、北非干旱半干旱区边界层高度变化及其影响因素
- The boundary layer height variation and influence factors over arid and semiarid areas of East Asia and North Africa
- 中山大学学报(自然科学版)(中英文) 2017年56卷第5期页码：93-100
- 作者机构：
  
  兰州大学大气科学学院∥甘肃省干旱气候变化与减灾重点实验室,甘肃,兰州,730000
- 作者简介：
- 基金信息：
- DOI：
  中图分类号：
- 纸质出版日期：2017，
  
  网络出版日期：2017-9-25，
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赵艳茹, 毛文茜, 张珂铨, 等. 东亚、北非干旱半干旱区边界层高度变化及其影响因素[J]. 中山大学学报(自然科学版)(中英文), 2017,56(5):93-100.

ZHAO Yanru, MAO Wenqian, ZHANG Kequan, et al. The boundary layer height variation and influence factors over arid and semiarid areas of East Asia and North Africa[J]. Acta Scientiarum Naturalium Universitatis SunYatseni, 2017,56(5):93-100.
赵艳茹, 毛文茜, 张珂铨, 等. 东亚、北非干旱半干旱区边界层高度变化及其影响因素[J]. 中山大学学报(自然科学版)(中英文), 2017,56(5):93-100. DOI：

ZHAO Yanru, MAO Wenqian, ZHANG Kequan, et al. The boundary layer height variation and influence factors over arid and semiarid areas of East Asia and North Africa[J]. Acta Scientiarum Naturalium Universitatis SunYatseni, 2017,56(5):93-100. DOI：

摘要

利用欧洲中期天气预报中心ECMWF（European Centre for Medium-Range Weather Forecasting）20世纪第一代再分析资料ERA-20C（the ECMWF twentieth century reanalysis）对东亚、北非2个典型干旱半干旱区1900-2010年边界层高度变化及其与气象要素变化之间联系进行了研究，结果表明：① 两个地区的边界层高度在整体变化、年际变化以及年代际变化中基本呈现出相反的变化趋势，整体趋势中东亚为显著上升趋势，气候倾向率为1.87 m/10a，北非为显著下降趋势，气候倾向率为-2.13 m/10a；在11个年代里，有8个年代的变化呈相反趋势。② 干旱半干旱区边界层高度的变化均与地气温差、相对湿度、风速的变化有一定联系，其中相对湿度与边界层高度的变化最为紧密，在两个地区均为显著性的负相关，相关系数分别为-0.778 4、-0.618 4。

Abstract

Based on the ECMWF's first atmospheric reanalysis data of the 20th Century

ERA-20C

the variation of the boundary-layer height (BLH) and its relationship with the meteorological factors over arid and semiarid areas of East Asia and North Africa spanning 1900-2010 were analyzed. The BLHs in the two areas showed an opposite trend in the overall

interannual and interdecadal variation. The BLH of East Asia overall showed a rising trend with a climate tendency rate of 1.87 m/10a

while the BLH of North Africa showed a decreasing trend with a climate tendency rate of -2.13 m/10a. In the 11 decades

there were 8 decades having opposite trend. The BLH was related to the change of land air temperature gradient

relative humidity and wind speed. The change of relative humidity had a good correlation with the BLH

with significant negative correlation coefficients of -0.778 4 and -0.618 4

respectively

in East Asia and North Africa.

关键词

干旱半干旱区边界层高度变化气象因素

Keywords

arid and semiarid areasboundary layer heightvariation characteristicsmeteorological factors

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