R. Suay, S. López, R. Granell, E. Moltó, H. Fatnassi, T. Boulard
Scarce data is presently available about inside microclimate of production greenhouses for both day and night periods. This paper aims at exploring the air temperature and humidity patterns in a 600 m2 greenhouse occupied with a mature rose crop. The study was carried out during a week in November (2007) in the region of Nice (France), using a data acquisition system specially developed for mapping the climate heterogeneity of greenhouses. Altogether, 26 horizontal measurements of air temperature and humidity at 1.3 m height and 30 vertical measurements (0.7, 1.3, 2.5, 3.5 and 4.5 m) of air temperature at different heights in the middle section of each one of the greenhouse spans were performed. The data is available at a recording frequency of 1 min-1 during the whole week for various outside climate conditions (sunny, less sunny, cloudy and rainy days) as well as different greenhouse vents configurations. Time dependant representation and mapping of the data is provided. An analysis of the results is derived for explaining the strong observed air temperature and humidity heterogeneity. For instance, temperature gradients range from 10°C during a sunny day to 2°C during a rainy day.
Suay, R., López, S., Granell, R., Moltó, E., Fatnassi, H. and Boulard, T. (2008). PRELIMINARY ANALYSIS OF GREENHOUSE MICROCLIMATE HETEROGENEITY FOR DIFFERENT WEATHER CONDITIONS. Acta Hortic. 797, 103-109
DOI: 10.17660/ActaHortic.2008.797.12
temperature, humidity, mapping, roses

Acta Horticulturae