Create example script for variable-length obs/states

nansencenter / DAPPER

Data Assimilation with Python: a Package for Experimental Research

https://nansencenter.github.io/DAPPER

MIT License

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Create example script for variable-length obs/states #30

Closed patnr closed 1 year ago

patnr commented 3 years ago

Be conservative about the changes necessary to the core of DAPPER.

ATM, this requires pretending variable-length state or obs are fixed-length. This enables using np.ndarrays without hassle, but includes overhead.

Is "pretending" compatible with all DA methods?
How should RMSEs be calculated?

patnr commented 1 year ago

The above commit (a14fbb2) should enable time-dependent observation operators, including variable-length observation vectors.

Time-dependent state lengths seem a lot more complicated to implement, and so should probably still be implemented with workarounds (fake/empty state components).