A Meta-Analysis of Open-Path Eddy Covariance Observations of Apparent CO2 Flux in Cold Conditions in FLUXNET
作者： Liming Wang , Xuhui Lee , Wei Wang , Xufeng Wang , Zhongwang Wei
DOI: 10.1175/JTECH-D-17-0085.1
关键词: Gas analyzer 、 Sensible heat 、 Atmosphere 、 Eddy covariance 、 Atmospheric sciences 、 Eddy 、 Co2 flux 、 Environmental science 、 Carbon dioxide 、 FluxNet
摘要: AbstractOpen-path eddy covariance systems are widely used for measuring the CO2 flux between land and atmosphere. A common problem is that they often yield negative fluxes or physiologically unreasonable uptake in nongrowing season under cold conditions. In this study, a meta-analysis was performed on data from 64 FLUXNET sites relationship observed sensible heat analyzed. theory, these two should be independent of each other conditions (air temperature lower than 0°C) when photosynthesis suppressed. However, results show significant linear existed at 37 sites. The mean slope value −0.008 ± 0.001 µmol m−2 s−1 per W among not significantly different three gas analyzer models (LI-7500, LI-7500A, IRGASON/EC150) sites, indicating self-heating may only ...
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sci-hub.se 参考文章(34)
Dayle K. McDermitt, Karan Ediger, George Burba, Debra Allyn, B. A. Riensche, Liukang Xu, Anatoly V. Komissarov, Terry Gayle Anderson, Accounting for spectroscopic effects in eddy covariance calculations of methane flux ,(2010)
Jon M. Welles, Dayle K. McDermitt, Measuring Carbon Dioxide in the Atmosphere Micrometeorology in Agricultural Systems. pp. 287- 320 ,(2015) , 10.2134/AGRONMONOGR47.C13
John A. Jamieson, Infrared Physics and Engineering ,(1963)
Achim Grelle, George Burba, Fine-wire thermometer to correct CO2 fluxes by open-path analyzers for artificial density fluctuations Agricultural and Forest Meteorology. ,vol. 147, pp. 48- 57 ,(2007) , 10.1016/J.AGRFORMET.2007.06.007
Taro Nakai, Kou Shimoyama, Ultrasonic anemometer angle of attack errors under turbulent conditions Agricultural and Forest Meteorology. ,vol. 162, pp. 14- 26 ,(2012) , 10.1016/J.AGRFORMET.2012.04.004
G. Fratini, D. K. McDermitt, D. Papale, Eddy-covariance flux errors due to biases in gas concentration measurements: origins, quantification and correction Biogeosciences. ,vol. 11, pp. 1037- 1051 ,(2014) , 10.5194/BG-11-1037-2014
Ran Liu, Yan Li, Qin-Xue Wang, Variations in water and CO2 fluxes over a saline desert in western China Hydrological Processes. ,vol. 26, pp. 513- 522 ,(2012) , 10.1002/HYP.8147
E. S. Euskirchen, M. S. Bret-Harte, G. J. Scott, C Edgar, G. R. Shaver, Seasonal patterns of carbon dioxide and water fluxes in three representative tundra ecosystems in northern Alaska Ecosphere. ,vol. 3, pp. 1- 19 ,(2012) , 10.1890/ES11-00202.1
GEORG WOHLFAHRT, LYNN F. FENSTERMAKER, JOHN A. ARNONE III, Large annual net ecosystem CO2 uptake of a Mojave Desert ecosystem Global Change Biology. ,vol. 14, pp. 1475- 1487 ,(2008) , 10.1111/J.1365-2486.2008.01593.X
Brian Amiro, Estimating annual carbon dioxide eddy fluxes using open-path analysers for cold forest sites Agricultural and Forest Meteorology. ,vol. 150, pp. 1366- 1372 ,(2010) , 10.1016/J.AGRFORMET.2010.06.007