Estimation of the zero-plan displacement, roughness length and aerodynamic resistance to water vapour exchange for a corn canopy for conditions of near neutral stability.

Zero-plane displacement, roughness length and aerodynamic resistance to water vapour exchange for conditions of near neutral stability were determined, using different profiles of wind speed above a corn canopy with a mean height of 2.80 m, during the tasselling period. The results showed a decrease for the roughness length and a increase in the zero-plane displacement with an increase of the wind speed between the intervals of 0.2 and 3.5 m s-1. In this condition the mean estimated value for the aerodynamic resistance to water vapour exchange was 0.19 s cm-1, very low if compared to the others.

Saved in:
Bibliographic Details
Main Authors: Volpe, Clovis Alberto, Brunini, Orivaldo
Format: Digital revista
Language:por
Published: Pesquisa Agropecuaria Brasileira 2014
Online Access:https://seer.sct.embrapa.br/index.php/pab/article/view/13334
Tags: Add Tag
No Tags, Be the first to tag this record!