Satellite-based calculation of global spectral irradiance
A global climatology of erythemal irradiance including the option to download
the numbers in tabular form is available
here.
If you want to know how these numbers were calculated, you may have
a look at the following two posters which summarize related work:
- [Mayer and Madronich, 1998]
show a comparison of erythemal irradiance calculated from
the TOMS
and ISCCP
datasets. Two completely different approaches
show surprisingly similar results. Larger differences were found for
the actinic flux which is also shown here.
- [Madronich et al., 1999]
show a climatology of erythemal irradiance, calculated using the
TOMS data.
In both posters, the calculated irradiance values are
compared with ground-based measurements.