Mutual influences on meteorological measurements due to the weather stations positioning

Hill and mountain agricultural sites are often close to the forests where a high tree canopy influences weather conditions in the vicinity. The presence of trees density affects humidity, temperature and solar radiation measurements. Vineyards or other cultures planted on slopes, sometimes force a non-ideal position of weather instruments and the outcome data do not take into account of the measurement uncertainty related the slope, the proximity of trees, and intensity of solar radiation. Aim of this study is the investigation of the effect on meteorological measurements due to the automatic weather station (AWS) positioning in an agricultural site located in Monferrato. The different position in field of two AWSs has been analysed, in order to evaluate the effect of the positioning of the sensors on sloping hills, in terms of the influence on temperature, humidity and solar radiation measurements.