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Volume 19, issue 1 | Copyright
Hydrol. Earth Syst. Sci., 19, 601-613, 2015
https://doi.org/10.5194/hess-19-601-2015
© Author(s) 2015. This work is distributed under
the Creative Commons Attribution 3.0 License.

Research article 29 Jan 2015

Research article | 29 Jan 2015

Estimates of global dew collection potential on artificial surfaces

H. Vuollekoski1, M. Vogt1,2, V. A. Sinclair1, J. Duplissy1, H. Järvinen1, E.-M. Kyrö1, R. Makkonen1, T. Petäjä1, N. L. Prisle1, P. Räisänen3, M. Sipilä1, J. Ylhäisi1, and M. Kulmala1 H. Vuollekoski et al.
  • 1University of Helsinki, Department of Physics, Helsinki, Finland
  • 2Norwegian Institute for Air Research, Oslo, Norway
  • 3Finnish Meteorological Institute, Helsinki, Finland

Abstract. The global potential for collecting usable water from dew on an artificial collector sheet was investigated by utilizing 34 years of meteorological reanalysis data as input to a dew formation model. Continental dew formation was found to be frequent and common, but daily yields were mostly below 0.1 mm. Nevertheless, some water-stressed areas such as parts of the coastal regions of northern Africa and the Arabian Peninsula show potential for large-scale dew harvesting, as the yearly yield may reach up to 100 L m−2 for a commonly used polyethylene foil. Statistically significant trends were found in the data, indicating overall changes in dew yields of between ±10% over the investigated time period.

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The global potential for collecting usable water from dew on an artificial collector sheet was investigated by utilising 34 years of meteorological reanalysis data as input to a dew formation model. Continental dew formation was found to be frequent and common, but daily yields were mostly below 0.1mm.
The global potential for collecting usable water from dew on an artificial collector sheet was...
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