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REAL TIME INVERSION OF FLOAT DATA. Operational
field estimation from the float data is developed as one of the tasks of
GyroScope. We seek efficient approaches which do not require the massive
resources (man-power and computing) of a full assimilation operational model (such
as FOAM, Mercator, or TOPAZ).
The objective is to develop procedures to be implemented in an operational
system to estimate, validate, and interpret the data provided by the Gyroscope
profilers. The results are valuable data to monitor the experiment, and to
obtain quick look data summaries. The
temperature, salinity and the velocity fields are obtained by inverse analysis. The
3D maps of the temperature and salinity fields for each cycle of the profilers
are obtained by an objective mapping procedure. The goal is to go from an
experimental phase to a pre-operational phase in which the maps are produced
within one working day after delivery of the data by the Data Centre. The
objectively mapped temperature and salinity fields are then used to obtain 3D
velocity fields in the Gyroscope region for every cycle of the profilers using a
version of the finite difference inverse model of ocean circulation adapted for
real time implementation. Here again, the goal is to achieve a transition from
an experimental approach to a near-real time approach. The maps of the velocity
field are available on a fortnightly basis.
Inversion results - 10m Inversion results - 1500m
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