Procedure Composite Process Instance
Get a list of ProcedureComputation objects. ProcedureComputations have a 1:1 mapping with Observations where used.
These may have a number of 2 or more components made up of combinations of Computation and Acquisition records.
The details of the underlying records have been serialised.
### Available end points:
- `/ProcedureComputations/` - Will list all ProcedureComputations in the database
- `/ProcedureComputations.json` - Will return all ProcedureComputations in json format
- `/ProcedureComputations/<object_id>/` - Returns ProcedureComputations object with that id
### Available Methods:
- `GET`
- `HEAD`
### Available filters:
None
### How to use filters:
None
GET /api/v2/composites/39524/?format=api
{ "ob_id": 39524, "computationComponent": [ { "ob_id": 39525, "uuid": "28a24e2f4a1e4b50962b3378afabc980", "title": "Computation Component: Level 2 Land processing algorithm applied to Sentinel 3 SRAL raw data.", "abstract": "There are three main steps in the Level-2 processing chain:\r\n\r\n1. Compute time-derived geophysical/environmental parameters.\r\n2. Perform re-tracking and compute physical parameters.\r\n3. Compute Level-2 altimeter/radiometer geophysical processing. \r\n\r\nComputing time-derived geophysical parameters involves:\r\n\r\n* re-computing altitude, orbital altitude rate, location and Doppler correction, accounting for updated orbit data\r\n* computing ionospheric corrections\r\n*computing non-equilibrium and equilibrium ocean tide heights, tidal loading, solid earth tide height, equilibrium long period ocean tide height and pole tide height (using pole locations)\r\n*computing the height of the mean sea surface above the reference ellipsoid\r\n*computing the mean dynamic topography, the height of the geoid and the ocean depth/land elevation.\r\n\r\nPerforming retracking and computing physical parameters (both SAR and LRM modes) involves:\r\n\r\n*discriminating echoes (ocean/lead, sea-ice, ice sheet margin or ocean/coastal)\r\n*performing retracking (ocean/lead, sea-ice, ice sheet margin or ocean/coastal)\r\n*computing physical parameters\r\n*merging snow depth (ocean/lead and sea-ice only)\r\n*performing a short-arc, along track ocean interpolation (ocean/lead and sea-ice only)\r\n*estimating freeboards (ocean/lead and sea-ice only)\r\n*performing a latitude limit check (ocean/lead and sea-ice only)\r\n\r\n(For SAR mode) performing modified slope correction (ice sheet margin and ocean/coastal only).\r\nLevel-2 altimeter/radiometer geophysical processing involves:\r\n\r\n*inputting and checking Level-1 MWR products\r\n*computing and correcting physical parameters according to platform data\r\n*interpolating MWR data and computing MWR geophysical parameters\r\n*computing altimeter wind speed and rain/ice flags\r\n*computing wind, tropospheric corrections and inverted barometer according to meteorological data\r\n*computing HF fluctuations of the atmospheric effect on the surface (dynamic atmosphere correction)\r\n*computing sea state bias\r\n*computing dual frequency ionospheric corrections\r\n*building and checking Level-2 SRAL/MWR products.", "keywords": "", "inputDescription": null, "outputDescription": null, "softwareReference": null, "identifier_set": [] } ], "acquisitionComponent": [ { "ob_id": 19015, "independentInstrument": [], "instrumentplatformpair_set": [ { "ob_id": 10047, "platform": "https://api.catalogue.ceda.ac.uk/api/v2/platforms/19017/?format=api", "instrument": "https://api.catalogue.ceda.ac.uk/api/v2/instruments/19016/?format=api", "relatedTo": { "ob_id": 19015, "uuid": "1c1605795ae247c28a64d003c686bdb2", "short_code": "acq" } } ] } ], "identifier_set": [], "responsiblepartyinfo_set": [ "https://api.catalogue.ceda.ac.uk/api/v2/rpis/192734/?format=api", "https://api.catalogue.ceda.ac.uk/api/v2/rpis/192736/?format=api", "https://api.catalogue.ceda.ac.uk/api/v2/rpis/192735/?format=api" ] }