Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
83042 | Agricultural and Forest Meteorology | 2006 | 6 Pages |
Abstract
In this paper, the ‘ensemble block’ time average procedure and the Ogive function are applied to three ChinaFLUX sites to determine the low-frequency contribution to eddy fluxes. It is found that both methods give similar results. They show that 30 min flux-averaging periods are sufficient to capture all flux scales over a wheat field, but 60 min or longer is necessary over forests. Our results show that the optimal averaging period is a site-specific parameter. According to this analysis, for some ChinaFLUX sites at least, an averaging period that captures the low-frequency transport may improve the energy balance problem.
Related Topics
Physical Sciences and Engineering
Earth and Planetary Sciences
Atmospheric Science
Authors
Xiao-Min Sun, Zhi-Lin Zhu, Xue-Fa Wen, Guo-Fu Yuan, Gui-Rui Yu,