Refraction Study Group (RSG) Charter
Considering that the current standard model developed by Marini and Murray
for applying atmospheric propagation delay corrections to SLR observations
is believed to be uncertain by up to 1cm in the zenith delay term, and
considering that it is tuned to particular wavelengths which do not encompass
all the wavelengths which might be used in practice.
- Assess the adequacy and accuracy of the Marini and Murray model
for SLR at the 1 mm level, for all elevations above 15 degrees and
all wavelengths from 355 to 1570 nanometers and perhaps beyond.
- If necessary, define a new model and/or set of procedures which
will satisfy these requirements, and verify it experimentally.
- Define optimum schemes for the collection and pre-processing of
meteorological and any other necessary data to be used as input to
the models/procedures, and assess the impact of the absence of any
such data which may be difficult or expensive to collect.
- Prepare a formal recommendation to the ILRS, including a standard
algorithm and set of recommended practices, for adoption by stations
and analysis centers.
