gms | German Medical Science

Figure

Figure 1: Spectral solar irradiance outside the atmosphere and on the surface of the Earth at sea level,

in both cases with the sun at the zenith and for a mean Earth-sun distance. Shaded areas indicate absorption before reaching the surface of the Earth at sea level due to the atmospheric constituents shown (from [1], [58], adapted from [59]).

For comparison of Figures 1 and 3: 1000 W m–2 m–1 = 100 mW cm–2 m–1 = 1 mW cm–2 (10 nm)–1