03 Jun 2022
03 Jun 2022
Status: this preprint is currently under review for the journal ESSD.

Harmonized gap-filled datasets from 20 urban flux tower sites

Mathew Lipson1,2, Sue Grimmond2, Martin Best3, Winston Chow4, Andreas Christen5, Nektarios Chrysoulakis6, Andrew Coutts7, Ben Crawford8, Stevan Earl9, Jonathan Evans10, Krzysztof Fortuniak11, Bert G. Heusinkveld12, Je-Woo Hong13, Jinkyu Hong14, Leena Järvi15, Sungsoo Jo16, Yeon-Hee Kim17, Simone Kotthaus18, Keunmin Lee19, Valéry Masson20, Joseph P. McFadden21, Oliver Michels22, Wlodzimierz Pawlak23, Matthias Roth24, Hirofumi Sugawara25, Nigel Tapper26, Erik Velasco27, and Helen Claire Ward28 Mathew Lipson et al.
  • 1Australian Research Council (ARC) Centre of Excellence for Climate System Science, Climate Change Research Centre, Level 4, Mathews Building, UNSW Sydney, New South Wales, 2052, Australia
  • 2Department of Meteorology, University of Reading, Reading, RG6 6ET, United Kingdom
  • 3Met Office, Fitzroy Road, Exeter, Devon, EX1 3PB, United Kingdom
  • 4School of Social Sciences, Singapore Management University, Singapore
  • 5Environmental Meteorology, Institute of Earth and Environmental Sciences, Faculty of Environment and Natural Resources, University of Freiburg, Freiburg, Germany
  • 6Foundation for Research and Technology Hellas, Institute of Applied and Computational Mathematics, Remote Sensing Lab, Heraklion, Greece
  • 7School of Earth, Atmosphere and Environment, Monash University, Melbourne, Australia
  • 8Geography and Environmental Sciences, University of Colorado, Denver, Colorado, USA
  • 9Global Institute of Sustainability and Innovation, Arizona State University, Tempe, Arizona, USA
  • 10UK Centre for Ecology & Hydrology, Crowmarsh Gifford, Wallingford, United Kingdom
  • 11Department of Meteorology and Climatology, University of Lodz, Lodz, Poland
  • 12Department of Meteorology and Air Quality, Wageningen University, The Netherlands
  • 13Korea Environment Institute, Sejong, Republic of Korea
  • 14Ecosystem-Atmosphere Process Lab, Department of Atmospheric Sciences, Yonsei University, Seoul, Korea (Republic of)
  • 15Institute for Atmospheric and Earth System Research/Physics, Faculty of Science, University of Helsinki, Helsinki, Finland
  • 16Ecosystem-Atmosphere Process Lab, Department of Atmospheric Sciences, Yonsei University, Seoul, Korea (Republic of)
  • 17National Institute of Meteorological Sciences, Korea Meteorological Administration, Jeju, Korea (Republic of)
  • 18Institut Pierre Simon Laplace (IPSL), CNRS, École Polytechnique, Institut Polytechnique de Paris, 91128 Palaiseau Cedex, France
  • 19Ecosystem-Atmosphere Process Lab, Department of Atmospheric Sciences, Yonsei University, Seoul, Republic of Korea
  • 20Centre National de Recherches Météorologiques, University of Toulouse, Météo-France and CNRS, Toulouse, France
  • 21Department of Geography and Earth Research Institute, University of California, Santa Barbara, United States
  • 22Environmental Meteorology, Albert-Ludwigs-University, Freiburg, Germany
  • 23Department of Meteorology and Climatology, University of Lodz, Lodz, Poland
  • 24Department of Geography, National University of Singapore, Singapore
  • 25National Defense Academy of Japan, Japan
  • 26School of Earth, Atmosphere and Environment, Monash University, Melbourne, Australia
  • 27Independent Research Scientist, Singapore
  • 28Department of Atmospheric and Cryospheric Sciences, University of Innsbruck, Innsbruck, Austria

Abstract. Twenty urban neighbourhood-scale eddy covariance flux tower datasets have been harmonized and quality controlled, producing a 50 site-year collection with broad diversity in climate and urban surface characteristics. Observations are gap-filled and prepended with 10 years of reanalysis-derived local data to enable use as spin up and forcing for land surface model evaluation. For both gap filling and spin-up, ERA5 reanalysis meteorological data are bias corrected using tower observations, accounting for diurnal, seasonal and local urban effects not modelled in ERA5. The bias correction methods developed perform well compared to methods used in other datasets (e.g. WFDE5 or FLUXNET2015 linear regression). Site description metadata includes local land cover fractions (buildings, roads, trees, grass etc.), building height and morphology, aerodynamic roughness estimates, population density and satellite imagery. Together, this collection can help extend our understanding of urban environmental processes through observational synthesis studies or in the evaluation of land surface environmental models in a wide range of urban settings.

Mathew Lipson et al.

Status: open (until 07 Aug 2022)

Comment types: AC – author | RC – referee | CC – community | EC – editor | CEC – chief editor | : Report abuse

Mathew Lipson et al.

Data sets

Site data archive for "Harmonized gap-filled dataset from 20 urban flux tower sites" for the Urban-PLUMBER project Mathew Lipson, Sue Grimmond, Martin Best, Winston Chow, Andreas Christen, Nektarios Chrysoulakis, Andrew Coutts, Ben Crawford, Stevan Earl, Jonathan Evans, Krzysztof Fortuniak, Bert G. Heusinkveld, Je-Woo Hong, Jinkyu Hong, Leena Järvi, Sungsoo Jo, Yeon-Hee Kim, Simone Kotthaus, Keunmin Lee, Valéry Masson, Joseph P. McFadden, Oliver Michels, Wlodzimierz Pawlak, Matthias Roth, Hirofumi Sugawara, Nigel Tapper, Erik Velasco, Helen Claire Ward

Model code and software

Code to process "Harmonized gap-filled datasets from 20 urban flux tower sites" for the Urban-PLUMBER projects Mathew Lipson

Code to produce figures in the manuscript: "Harmonized, gap-filled dataset from 20 urban flux tower sites" Mathew Lipson

Mathew Lipson et al.


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Short summary
A collection of weather observations from twenty urban locations around the world. The observations are valuable as they capture not only typical measurements (temperature, humidity, wind etc.) but also how energy is exchanged between the land and the atmosphere through radiation and turbulent heat fluxes. These can be used to improve our understanding of weather processes over cities, and to evaluate urban environmental models. Together the collection captures 50 years of observations.