The image shows the near-real-time
variation of the Assimilated Ozone Field over the North Pole on
a two-day basis. Measurements derive from SCIAMACHY and are processed
at TEMIS (Tropospheric Emission Monitoring Internet Service).
TM3-DAM model is used to produce global assimilated ozone fields.
The model produces global distributions of the total ozone column
in Dobson Units(DU). Global distributions are stored with a resolution
of 1.25 by 1.25 degree.
Data assimilation is a general technique
to combine measurements (which contain observation errors) with
models that describe the time evolution of the system.
(Tropospheric Emission Monitoring Internet Service).
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