摘要
涡动相关法可直接测定地气间水热通量,成为国际上陆面过程野外观测试验中广泛应用的技术方法。但地表环境通常难以达到理论要求的标准,观测偏差会对地表能量平衡以及陆面模拟产生影响。通量数据质量不仅是长期野外观测试验可行性的基础,而且不同地表环境高质量通量数据对于全球气候变化响应研究具有一定意义。通过概述涡动相关法数据预处理、坐标旋转校正、频率响应校正、超声虚温校正和空气密度效应校正处理方法在不同下垫面的应用成果,以及数据处理过程对通量的影响和不同校正方法在下垫面的适用性选择,在探讨涡动相关法通量数据处理方法不足的基础上对未来的研究展开讨论。
In the field observation experiment of land surface process,the eddy covariance technique can directly measure the water vapor and heat fluxes between ground and atmosphere,which has become a widely used technique and method in the world.However,the surface observation conditions are difficult to meet the theoretically requirements,and the observation deviation will have an impact on the surface energy balance and land surface simulation.Flux data quality is not only the basis for the feasibility of long-term field observation experiments,but also high-quality flux data from different surface environments has a certain significance for the study of global climate change response.This paper summarized the application results of the eddy covariance technique,the influence of data processing on the flux and the applicable selection of different correction methods in the underlying surface,applying the data preprocessing,coordinate rotation correction,frequency response correction,sonic temperature correction and air density correction.On the basis of discussing the deficiency of flux data processing method of eddy covariance technique,the future research is discussed.
作者
赵佳伟
何清
金莉莉
李振杰
郑先念
马明杰
Zhao Jiawei;He Qing;Jin Lili;Li Zhenjie;Zheng Xiannian;Ma Mingjie(Meteorology Field Scientific Experiments Base of Taklimakan Desert,Institute of Desert Meteorology,China Meteorological Administration,Urumqi 830002;College of Geography Science and Tourism,Xinjiang Normal University,Urumqi 830054;Xinjiang Meteorological Observatory,Urumqi 830002;Lincang Meteorological Bureau,Lincang 677099)
出处
《气象科技进展》
2020年第5期7-12,共6页
Advances in Meteorological Science and Technology
基金
国家自然科学基金(41605008,41641045)
公益性行业(气象)科研专项(GYHY(QX)201506001-14)
中国沙漠气象科学研究基金(Sqj2016006)
新疆高层次人才引进项目(2016-金莉莉)。
关键词
涡动相关法
湍流通量
数据处理
eddy covariance technique
turbulent flux
data processing
