Comparison of flux measurement by open-path and close-path eddy covariance systems | |
Yu Guirui![]() | |
2005 | |
关键词 | Anemometers Atmospheric composition Climate change Data structures Spectrum analysis Time series analysis |
英文摘要 | For flux measurement, the eddy covariance technique supplies a possibility to directly measure the exchange between vegetation and atmosphere; and there are two kinds of eddy covariance systems, open-path and close-path systems. For the system error, it may result in difference of flux measurements by two systems. Therefore, it is necessary to compare the measured results from them. ChinaFLUX covers of eight sites applied the micrometeorological method, in which Changbai Mountains (CBS) and Qianyanzhou (QYZ) carried out open-path eddy covariance (OPEC) and close-path eddy covariance (CPEC) measurements synchronously. In this paper the data sets of CBS and QYZ were employed. The delay time of close-path analyzer to the open-path analyzer was calculated; the spectra and cospectra of time-series data of OPEC and CPEC were analyzed; the open-path flux measurement was used as a standard comparison, the close-path flux measurement results were evaluated. The results show that, at two sites the delay time of CO |
出处 | Science in China, Series D: Earth Sciences
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卷 | 48期:SUPPL.1页:74-84 |
收录类别 | EI |
语种 | 英语 |
内容类型 | EI期刊论文 |
源URL | [http://ir.igsnrr.ac.cn/handle/311030/24610] ![]() |
专题 | 地理科学与资源研究所_历年回溯文献 地理科学与资源研究所_生态系统研究网络观测与模拟重点实验室_CERN水分分中心 |
推荐引用方式 GB/T 7714 | Yu Guirui. Comparison of flux measurement by open-path and close-path eddy covariance systems. 2005. |
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