Very good product, thank you for using ESSD. Clearly shows complexity of and level of skill and attention needed to operate a reference-quality UV radiance facility.

Recommend two small technical changes:

Lines 48, 49: Correct about ozone but counter to most medical advice about dangers of UV-B vs UV-A? Because their setup measures 290 to 500 nm, these authors get most of UV-B (nominally 280-315), all of UV-A (nominally 315-400) plus - as they note - some violet/blue fraction of visible? Please check for accuracy and consistency of all uses of and wavelength definitions of UV-B and UV-A? Later the authors describe data in terms of CIE-based erythemal irradiance (in some cases accompanied by UV-A) and various plant or animal effective doses, which seem much more relevant but - see below - reader never finds a definition of the CIE acronym nor a description of relevant wavelengths or exposures.

Line 147: Use of acronym QASUME here well before definition of the acronym. Same problem occurs for AOD, introduced later in the document without any definition. Please check all acronyms for accuracy, proper definition at first usage, etc.