Evaluating the performance of ENVI-met model in diurnal cycles for different meteorological conditions

Juan A. Acero*, Jon Arrizabalaga

*Corresponding author for this work

    Research output: Contribution to journalArticlepeer-review

    107 Citations (Scopus)

    Abstract

    Urban areas are known to modify meteorological variables producing important differences in small spatial scales (i.e. microscale). These affect human thermal comfort conditions and the dispersion of pollutants, especially those emitted inside the urban area, which finally influence quality of life and the use of public open spaces. In this study, the diurnal evolution of meteorological variables measured in four urban spaces is compared with the results provided by ENVI-met (v 4.0). Measurements were carried out during 3 days with different meteorological conditions in Bilbao in the north of the Iberian Peninsula. The evaluation of the model accuracy (i.e. the degree to which modelled values approach measured values) was carried out with several quantitative difference metrics. The results for air temperature and humidity show a good agreement of measured and modelled values independently of the regional meteorological conditions. However, in the case of mean radiant temperature and wind speed, relevant differences are encountered highlighting the limitation of the model to estimate these meteorological variables precisely during diurnal cycles, in the considered evaluation conditions (sites and weather).

    Original languageEnglish
    Pages (from-to)455-469
    Number of pages15
    JournalTheoretical and Applied Climatology
    Volume131
    Issue number1-2
    DOIs
    Publication statusPublished - 1 Jan 2018

    Keywords

    • Difference metrics
    • Diurnal cycles
    • ENVI-met model
    • Measurements
    • Micrometeorological variables

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