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The Marsta micro-meteorological field project. Profile measurement system and some preliminary data

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Abstract

A micro-meteorological installation for accurate continuous measurements is described. Air temperature differences are obtained to ±0.02°C. Humidity is measured with the psychrometric method; an accuracy of ±0.03 mb in difference measurements has been obtained after having taken extensive measures to overcome heat conduction and radiation errors. A heating system enables humidity profiles to be obtained during freezing conditions.

A number of humidity profiles obtained in connection with turbulent flux measurements have been properly nondimensionalized and plotted against z/L. The result is in clear favour of Monin-Obukhov similarity for the nondimensionalized humidity profiles.

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Authors and Affiliations

  1. Dept. of Meteorology, Uppsala University, Sweden

    Ann-Sofi Smedman-Högström & Ulf Högström

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  1. Ann-Sofi Smedman-Högström
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  2. Ulf Högström
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Smedman-Högström, AS., Högström, U. The Marsta micro-meteorological field project. Profile measurement system and some preliminary data. Boundary-Layer Meteorol 5, 259–273 (1973). https://doi.org/10.1007/BF00155236

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  • DOI: https://doi.org/10.1007/BF00155236

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