Evapotranspiration under advective conditions

Patricia I. Figuerola, Pedro R. Berliner

    Research output: Contribution to journalArticlepeer-review

    14 Scopus citations


    Arid and semi-arid regions are heterogeneous landscapes in which irrigated fields are surrounded by arid areas. The advection of sensible heat flux from dry surfaces is a significant source of energy that has to be taken into consideration when evaluating the evaporation from crops growing in these areas. The basic requirement of most of the common methods for estimating evapotranspiration [Bowen ratio, aerodynamic and Penman-Monteith (PM) equation] is that the horizontal fluxes of sensible and latent heat are negligible when compared to the corresponding vertical fluxes. We carried out measurements above an irrigated tomato field in a desert area. Latent and sensible heat fluxes were measured using a four-level Bowen machine with aspirated psychrometers. Our results indicate that under advective conditions only measurements carried out in the lowest layer are satisfactory for the estimation of latent heat fluxes and that the use of the PM equation with an appropriately parameterized canopy resistance may be preferable.

    Original languageEnglish
    Pages (from-to)403-416
    Number of pages14
    JournalInternational Journal of Biometeorology
    Issue number6
    StatePublished - 1 Jul 2005


    • Advection
    • Evapotranspiration
    • Evapotranspiration models

    ASJC Scopus subject areas

    • Ecology
    • Atmospheric Science
    • Health, Toxicology and Mutagenesis


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