JCSDA-internal / ioda-converters

Various converters for getting obs data in and out of IODA
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Add converter for ocean surface wind from retrieval (CYGNSS, Muon, Spire) #1452

Closed smaticka closed 5 months ago

smaticka commented 5 months ago

Description

Ocean surface (10 m) wind speed data is available from CYGNSS NOAA, Muon, and Spire. A converter is first needed to bring it into IODA-format. Since it is only wind speed (no direction), an obs function is also needed in UFO to estimate the wind velocity components.

Wind speed (no direction) is retrieved for CYGNSS: using the NOAA GMF v1.0 and the NOAA trackwise debiasing algorithm; Muon: using neural nets; and Spire: using the empirical relation between Sigma0 and background ECMWF 10m wind).

Each source provides netCDF files.

Dependent PRs

CYGNSS converter: https://github.com/JCSDA-internal/ioda-converters/pull/1449 Muon converter: https://github.com/JCSDA-internal/ioda-converters/pull/1436 Spire converter: https://github.com/JCSDA-internal/ioda-converters/pull/1447

Should these be combined into 1?