Measuring solar radiation in Australian study with the ASD FieldSpec4
A new article published by Apple and Pear Australia Limited (APAL) highlights an innovative application of the FieldSpec4 multi-spectral radiometer to measure solar radiation exposure on apple and pear crops, covered with several varieties of netting.
As the article’s abstract reads, “Netting intercepts solar radiation, reducing the amount of energy reaching fruit and hence lowering the risk of sunburn and colour bleaching of fruit. However, netting also lowers radiation that is needed for photosynthesis and colour development. In this article we present some preliminary data on the effects of netting on some important wavelengths of light.”
The FieldSpec4 was a key part of the study, measuring solar radiation in 2nm increments from 350nm to 2500nm, extracting wavebands corresponding to solar radiation, ultraviolet A radiation, photosynthetically active radiation and infrared radiation. A black curtain placed around the radiometer minimised reflective radiation.
The study describes the positioning of the spectrometer which remained stationary below the netting, while the netting was moved laterally throughout the process. The spectrometer was facing upwards.
FieldSpec4 for your application
The wide range of portable analysis solutions available from PAS are versatile and customisable to an amazing degree, dependent on the specific demands of each application. Our engineers are specialists in calibrating instruments to suit your particular objectives, constraints and conditions.
Learn more about the comprehensive ASD FieldSpec range available through PAS in Australia or New Zealand. Consider other hyperspectral analysers for different situations, such as airborne sensors.