Articles | Volume 11, issue 10
https://doi.org/10.5194/amt-11-5421-2018
© Author(s) 2018. This work is distributed under
the Creative Commons Attribution 4.0 License.
the Creative Commons Attribution 4.0 License.
https://doi.org/10.5194/amt-11-5421-2018
© Author(s) 2018. This work is distributed under
the Creative Commons Attribution 4.0 License.
the Creative Commons Attribution 4.0 License.
Research article
| 
02 Oct 2018
Research article |
| 02 Oct 2018
| 02 Oct 2018
Uncertainty of eddy covariance flux measurements over an urban area based on two towers
Institute for Atmospheric and Earth System Research (INAR)/Physics, Faculty of Science, University of Helsinki, P.O. Box 68, 00014 Helsinki, Finland
Helsinki Institute of Sustainability Science, Faculty of Science, University of Helsinki, P.O. Box 68, 00014 Helsinki, Finland
Üllar Rannik
Institute for Atmospheric and Earth System Research (INAR)/Physics, Faculty of Science, University of Helsinki, P.O. Box 68, 00014 Helsinki, Finland
Tom V. Kokkonen
Institute for Atmospheric and Earth System Research (INAR)/Physics, Faculty of Science, University of Helsinki, P.O. Box 68, 00014 Helsinki, Finland
Mona Kurppa
Institute for Atmospheric and Earth System Research (INAR)/Physics, Faculty of Science, University of Helsinki, P.O. Box 68, 00014 Helsinki, Finland
Ari Karppinen
Finnish Meteorological Institute, P.O. Box 503, 00101 Helsinki, Finland
Rostislav D. Kouznetsov
Finnish Meteorological Institute, P.O. Box 503, 00101 Helsinki, Finland
A. M. Obukhov Institute of Atmospheric Physics, 119017 Moscow, Russia
Pekka Rantala
Institute for Atmospheric and Earth System Research (INAR)/Physics, Faculty of Science, University of Helsinki, P.O. Box 68, 00014 Helsinki, Finland
Timo Vesala
Institute for Atmospheric and Earth System Research (INAR)/Physics, Faculty of Science, University of Helsinki, P.O. Box 68, 00014 Helsinki, Finland
INAR/Forest Sciences, Faculty of Agriculture and Forestry, P.O. Box 27, 00014 University of Helsinki, Finland
Curtis R. Wood
Finnish Meteorological Institute, P.O. Box 503, 00101 Helsinki, Finland
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- Observational Investigation of the Statistical Properties of Surface-Layer Turbulence in a Suburban Area of São Paulo, Brazil: Objective Analysis of Scaling-Parameter Accuracy and Uncertainties L. da Silveira et al. 10.1007/s10546-022-00726-5
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- Wavelet variance scale-dependence as a dynamics discriminating tool in high-frequency urban wind speed time series F. Guignard et al. 10.1016/j.physa.2019.04.021
22 citations as recorded by crossref.
- Fisher–Shannon Complexity Analysis of High-Frequency Urban Wind Speed Time Series F. Guignard et al. 10.3390/e21010047
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- Energy and mass exchange at an urban site in mountainous terrain – the Alpine city of Innsbruck H. Ward et al. 10.5194/acp-22-6559-2022
- SEBU: A novel fully automated Google Earth Engine surface energy balance model for urban areas Y. Abunnasr et al. 10.1016/j.uclim.2022.101187
- Aircraft Measurements of Tropospheric CO2 in the North China Plain in Autumn and Winter of 2018–2019 H. Zhang et al. 10.3390/atmos14121835
- Comparing i-Tree Eco Estimates of Particulate Matter Deposition with Leaf and Canopy Measurements in an Urban Mediterranean Holm Oak Forest R. Pace et al. 10.1021/acs.est.0c07679
- Spatial Modeling of Local‐Scale Biogenic and Anthropogenic Carbon Dioxide Emissions in Helsinki L. Järvi et al. 10.1029/2018JD029576
- Comparing sources of uncertainty in community greenhouse gas estimation techniques M. Blackhurst & H. Matthews 10.1088/1748-9326/ac6084
- Observational Investigation of the Statistical Properties of Surface-Layer Turbulence in a Suburban Area of São Paulo, Brazil: Objective Analysis of Scaling-Parameter Accuracy and Uncertainties L. da Silveira et al. 10.1007/s10546-022-00726-5
- A high-resolution monitoring approach of urban CO2 fluxes. Part 2 – surface flux optimisation using eddy covariance observations S. Stagakis et al. 10.1016/j.scitotenv.2023.166035
- A Feasibility Study for Determining the Sensible Heat Flux to and from Small Green Roofs N. Wollschläger et al. 10.1007/s10546-021-00646-w
- Satellite observations reveal a decreasing albedo trend of global cities over the past 35 years S. Wu et al. 10.1016/j.rse.2024.114003
- Spatial Representativeness of Gross Primary Productivity from Carbon Flux Sites in the Heihe River Basin, China T. Yu et al. 10.3390/rs13245016
- Exploring the discrepancy between top-down and bottom-up approaches of fine spatio-temporal vehicular CO2 emission in an urban road network P. Fung et al. 10.1016/j.scitotenv.2023.165827
- WRF (v4.0)–SUEWS (v2018c) coupled system: development, evaluation and application T. Sun et al. 10.5194/gmd-17-91-2024
- A High-Resolution Monitoring Approach of Urban Co2 Fluxes. Part 2 - Optimisation Framework Using Eddy Covariance Observations S. Stagakis et al. 10.2139/ssrn.4172740
- Harmonized gap-filled datasets from 20 urban flux tower sites M. Lipson et al. 10.5194/essd-14-5157-2022
- Urban CO2 Budget: Spatial and Seasonal Variability of CO2 Emissions in Krakow, Poland A. Jasek-Kamińska et al. 10.3390/atmos11060629
2 citations as recorded by crossref.
- Linearity versus non-linearity in high frequency multilevel wind time series measured in urban areas L. Telesca et al. 10.1016/j.chaos.2019.02.002
- Wavelet variance scale-dependence as a dynamics discriminating tool in high-frequency urban wind speed time series F. Guignard et al. 10.1016/j.physa.2019.04.021
Latest update: 17 Apr 2024
Short summary
Identical EC systems on two sides of a building in central Helsinki were used to assess the uncertainty of the vertical fluxes on the single measurement point from July 2013 to September 2015. Sampling at only one point yielded up to 12% underestimation in the cumulative carbon fluxes; for sensible and latent heat the respective values were up to 5 and 8%. The commonly used statistics, kurtosis and skewness, are not necessarily suitable for filtering out data in a densely built urban area.
Identical EC systems on two sides of a building in central Helsinki were used to assess the...
