Observation Instance
Get a list of Observation objects.
### Available end points:
- `/observations/` - Will list all Results in the database
- `/observations.json` - Will return all Results in json format. This can
also be achieved by using the accept header. `application/json`
- `/observations/<object_id>/` - Returns Results object with that id
### Available Methods:
- `GET`
- `HEAD`
### Available filters:
- `title`
- `uuid`
- `keywords`
- `status`
- `result_field`
- `discoveryKeywords`
- `updateFrequency`
- `nonGeographicFlag`
- `publicationState`
- `permissions`
### How to use filters:
These filters can be used like django query filters using __ for related model relationships.
- `/observations/?uuid=d594d53df2612bbd89c2e0e770b5c1a0`
- `/observations/?status=completed`
- `/observations/?results_field__dataPath__startswith=/neodc/esacci`
- `/observations/?discoveryKeywords__name=ESACCI`
- `/observations/?nonGeographicFlag=True`
Filters can be stacked to build an 'AND' relationship. E.g.
- `/observations/?publicationState__in=published,citable&nonGeographicFlag=True`
- `/observations/?publicationState__in=published,citable&discoveryKeyword__name=NDGO0003`
GET /api/v2/observations/43602/?format=api
{ "ob_id": 43602, "uuid": "5d8997e0cd974835999a8d8ba677b26f", "title": "Met Office Cardington: precipitation measurements from a Thies disdrometer, 2019-2024", "abstract": "The Met Office Observation-based research Boundary Layer Facility, at the semi-rural field site (18 Ha) of Cardington (52° 06′ N, 00° 25′ W, 29 m ± 1 m amsl) in central-southern England between 2004 and 2024, operated the Thies laser disdrometer, a laser optical device used for the measurement of diameter and fall velocity of hydrometeors, from 2019 to 2024. From such measurements, it is possible to classify different types of precipitation, such as drizzle, rain, hail, snow, and mixed precipitation, quantify precipitation in a time interval, and derive size and velocity joint distribution. Thies laser disdrometer can in addition detect fine drizzle, drop fall speed and drop size distribution.\r\n\r\nThe disdrometer is the most sophisticated precipitation instrument deployed at Cardington.\r\n\r\nA full list of NetCDF variables can be found in \"Continuous meteorological surface and soil records (2004-2024) at the Met Office surface site of Cardington, UK.\" Osborne et al. ESSD (2025). This paper should be referenced in any research/publications pertaining to this dataset.", "keywords": "precipitation, rainfall, drizzle rate, droplet size distribution, fall speed, spectra, measurement, Cardington, Met Office", "publicationState": "citable", "dataPublishedTime": "2025-04-28T08:32:49", "doiPublishedTime": "2025-04-28T08:36:06", "updateFrequency": "notPlanned", "status": "final", "result_field": { "ob_id": "https://api.catalogue.ceda.ac.uk/api/v2/observations/43704/?format=api", "dataPath": "/badc/ukmo-cardington/data/complete-collection/disdrometer/thies", "oldDataPath": [], "storageLocation": "internal", "storageStatus": "online", "volume": 4269163190, "numberOfFiles": 1533, "fileFormat": "Data are NetCDF formatted" }, "timePeriod": "https://api.catalogue.ceda.ac.uk/api/v2/times/12158/?format=api", "geographicExtent": "https://api.catalogue.ceda.ac.uk/api/v2/bboxes/39/?format=api", "nonGeographicFlag": false, "phenomena": [ "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/75739/?format=api", "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/75740/?format=api", "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/75741/?format=api", "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/75742/?format=api", "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/75743/?format=api", "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/75744/?format=api", "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/75745/?format=api", "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/75746/?format=api", "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/75747/?format=api", "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/75748/?format=api", "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/75749/?format=api", "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/75750/?format=api", "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/75751/?format=api", "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/75752/?format=api", "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/75753/?format=api", "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/75754/?format=api", "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/75755/?format=api", "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/75756/?format=api", "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/75757/?format=api", "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/75758/?format=api", "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/75759/?format=api", "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/75760/?format=api", "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/75761/?format=api", "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/75762/?format=api", "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/75763/?format=api" ], "dataLineage": "Data were collected by the Met Office Meteorological Research Unit, Cardington, during its operational period. These data have been standardised for the production of this dataset, following similar file metadata conventions for all associated datasets within the continuous hydro-meteorological record (2004-2024) at the Met Office surface site of Cardington, UK Dataset Collection, as described more fully within Osborne et al., (2025). This standardisation approach addressed, where possible, any known data and metadata issues. Data were then deposited at the Centre for Environmental Data Analysis (CEDA) for long-term archival.", "removedDataTime": null, "removedDataReason": "", "language": "English", "identifier_set": [ "https://api.catalogue.ceda.ac.uk/api/v2/identifiers/13331/?format=api" ], "projects": [ "https://api.catalogue.ceda.ac.uk/api/v2/projects/20010/?format=api" ], "observationcollection_set": [ "https://api.catalogue.ceda.ac.uk/api/v2/observationcollections/43597/?format=api" ], "responsiblepartyinfo_set": [ "https://api.catalogue.ceda.ac.uk/api/v2/rpis/208233/?format=api", "https://api.catalogue.ceda.ac.uk/api/v2/rpis/208229/?format=api", "https://api.catalogue.ceda.ac.uk/api/v2/rpis/208234/?format=api", "https://api.catalogue.ceda.ac.uk/api/v2/rpis/208227/?format=api", "https://api.catalogue.ceda.ac.uk/api/v2/rpis/208228/?format=api", "https://api.catalogue.ceda.ac.uk/api/v2/rpis/208230/?format=api", "https://api.catalogue.ceda.ac.uk/api/v2/rpis/208231/?format=api", "https://api.catalogue.ceda.ac.uk/api/v2/rpis/208232/?format=api", "https://api.catalogue.ceda.ac.uk/api/v2/rpis/208235/?format=api", "https://api.catalogue.ceda.ac.uk/api/v2/rpis/208236/?format=api", "https://api.catalogue.ceda.ac.uk/api/v2/rpis/208237/?format=api", "https://api.catalogue.ceda.ac.uk/api/v2/rpis/208238/?format=api", "https://api.catalogue.ceda.ac.uk/api/v2/rpis/208239/?format=api" ], "procedureAcquisition": "https://api.catalogue.ceda.ac.uk/api/v2/acquisitions/43693/?format=api", "procedureCompositeProcess": null, "procedureComputation": null, "permissions": [ { "ob_id": "https://api.catalogue.ceda.ac.uk/api/v2/observations/2526/?format=api", "useLimitation": null, "accessConstraints": null, "accessCategory": "public", "accessRoles": null, "label": "public: None group", "licenceURL": "http://www.nationalarchives.gov.uk/doc/open-government-licence/version/3/", "licenceClassifications": "any" } ], "discoveryKeywords": [] }