@I03254@, \(E\), at @W06659@ \(\lambda \) per unit @W06659@ interval. The SI unit is \(\text{W m}^{-3}\), but a commonly used unit is \(\text{W m}^{-2}\ \text{nm}^{-1}\).
Source: PAC, 1996,
68, 2223. (
Glossary of terms used in photochemistry (IUPAC Recommendations 1996)) on page 2275 [
Terms] [
Paper]
See also: PAC, 1990,
62, 2167. (
Glossary of atmospheric chemistry terms (Recommendations 1990)) on page 2198 [
Terms] [
Paper]