Besides creating analyses of total ozone from the current NOAA
satellite and posting these analyses on the internet, CPC continually
monitors measured ozone amounts for accuracy and looks for possible
indications of instrument degradation. As part of the continuing
effort to better understand ozone depletion, the CPC has worked
to develop the ozone observations from each satellite into a
continuous time series removing biases or offsets from each
satellite's instrument. The result is a high quality data set
usable to derive trends with respect to total ozone.
Comparison with ground based observations of total
ozone from Dobson
instruments, ground-based (LIDAR)
and satellite-based instruments (SAGE,
provides assurance that SBUV/2 ozone data are of the highest
Following each hemisphere's winter/spring season
since 1991, the CPC has published a Hemispheric Winter Bulletin.
This report summarizes NOAA's observations and explains the
stratospheric ozone depletion processes which occurred during
the year in context with the historical record.
The CPC displays many products via the world
wide web. In addition to total ozone measurements from the SBUV/2
instrument, Antarctic ozone hole size estimates are also calculated
with SBUV/2 data from September through December. The CPC has
monitored heights and temperatures of the stratosphere since
the 1960's and now provides these products on the internet with
commentary of how the ozone fields are linked with the thermal
and dynamic structure of the stratosphere.