Self-Study Manual on Optical Radiation Measurements, Vol. 3 : Applications, Chapter 1; Measurement of Solar Terrestrial Spectral Irradiance in the Ozone Cut-Off Region (Classic Reprint)

Measure UV solar irradiance with state-of-the-art radiometric methods and sharpen ozone-related data. Learn how to plan, calibrate, and evaluate measurements in the challenging 290–340 nm range.

This edition explains how researchers design and carry out UV solar-terrestrial measurements, focusing on the setup, calibration, and data handling needed to study the ozone-cutoff region. It discusses the trade-offs of using diffusers, the importance of accurate wavelength calibration, and how to quantify and reduce measurement uncertainty in real-world conditions. The material also outlines expected improvements in instrumentation and methods for better precision.

• How the measurement system is configured to view both the sun and a calibration standard
• The role of slit width, diffuser use, and slit-scattering function in data quality
• How uncertainties—such as tracking, polarization, and lamp signals—are estimated and mitigated
• Future directions for UV solar-terrestrial radiometry and simultaneous spectral measurements