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/44928/?format=api
{ "ob_id": 44928, "uuid": "488327e1ebe14c679ea62f6abfb7b662", "title": "Future Thermospheric Density Scaling Factors for Satellite Drag Analysis (2000–2100)", "abstract": "This dataset, produced under the UK Space Weather Instrumentation, Measurement, Modelling and Risk (SWIMMR) programme, provides density scaling factors for the Earth's thermosphere from 2000 to 2100. By using Whole Atmosphere Community Climate Model with ionosphere and thermosphere extension (WACCM-X) model simulations, these factors allow researchers to adjust empirical atmospheric models to account for carbon dioxide (CO2) induced cooling. This is essential for accurately calculating future satellite drag and managing the long-term risks of orbital space debris. CO2 causes thermospheric contraction in the upper atmosphere, reducing neutral densities at fixed altitudes. However, this isn't modelled by current empirical models. The scaling factors included within this dataset are created with the WACCM-X, and allow empirical models (assuming they accurately represent the year 2000 or later) to account for CO2 induced density reductions. Scaling factors are global mean, annual mean neutral densities relative to the similar value in year 2000, under increasing CO2 concentrations and solar activity conditions (via the F10.7 proxy). Modelled values are interpolated in carbon dioxide concentration onto the future CO2 scenarios of the Representative Concentration Pathways (RCPs) and Shared Socioeconomic Pathways (SSPs) published by the Intergovernmental Panel on Climate Change (IPCC). F10.7 values are left as a dimension to allow the user to choose the future solar activity conditions.", "keywords": "carbon dioxide (CO2), thermospheric", "publicationState": "published", "dataPublishedTime": "2026-02-26T11:51:39", "doiPublishedTime": null, "updateFrequency": "", "status": "completed", "result_field": { "ob_id": "https://api.catalogue.ceda.ac.uk/api/v2/observations/44929/?format=api", "dataPath": "/badc/deposited2024/SWIMMR_ThermosphereC02SCaling", "oldDataPath": [], "storageLocation": "internal", "storageStatus": "online", "volume": 2377541, "numberOfFiles": 3, "fileFormat": "Data are NetCDF formatted" }, "timePeriod": "https://api.catalogue.ceda.ac.uk/api/v2/times/12750/?format=api", "geographicExtent": "https://api.catalogue.ceda.ac.uk/api/v2/bboxes/4903/?format=api", "nonGeographicFlag": false, "phenomena": [ "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/21859/?format=api", "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/92529/?format=api", "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/92530/?format=api", "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/92531/?format=api", "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/92532/?format=api", "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/92533/?format=api", "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/92534/?format=api", "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/92535/?format=api", "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/92536/?format=api", "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/92537/?format=api", "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/92538/?format=api", "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/92539/?format=api", "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/92540/?format=api", "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/92541/?format=api", "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/92542/?format=api", "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/92543/?format=api", "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/92544/?format=api", "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/92545/?format=api" ], "dataLineage": "Data were produced by the project team and supplied for archiving at the Centre for Environmental Data Analysis (CEDA). Neutral densities simulated with the Whole Atmosphere Community Climate Model with ionosphere and thermosphere extension (WACCM-X) version 1.2.2.", "removedDataTime": null, "removedDataReason": "", "language": "English", "identifier_set": [], "projects": [ "https://api.catalogue.ceda.ac.uk/api/v2/projects/44952/?format=api" ], "observationcollection_set": [], "responsiblepartyinfo_set": [ "https://api.catalogue.ceda.ac.uk/api/v2/rpis/215283/?format=api", "https://api.catalogue.ceda.ac.uk/api/v2/rpis/215280/?format=api", "https://api.catalogue.ceda.ac.uk/api/v2/rpis/215281/?format=api", "https://api.catalogue.ceda.ac.uk/api/v2/rpis/215282/?format=api", "https://api.catalogue.ceda.ac.uk/api/v2/rpis/215360/?format=api", "https://api.catalogue.ceda.ac.uk/api/v2/rpis/215284/?format=api", "https://api.catalogue.ceda.ac.uk/api/v2/rpis/215278/?format=api", "https://api.catalogue.ceda.ac.uk/api/v2/rpis/215279/?format=api", "https://api.catalogue.ceda.ac.uk/api/v2/rpis/215361/?format=api", "https://api.catalogue.ceda.ac.uk/api/v2/rpis/215362/?format=api", "https://api.catalogue.ceda.ac.uk/api/v2/rpis/215363/?format=api", "https://api.catalogue.ceda.ac.uk/api/v2/rpis/215364/?format=api" ], "procedureAcquisition": null, "procedureCompositeProcess": null, "procedureComputation": "https://api.catalogue.ceda.ac.uk/api/v2/computations/31928/?format=api", "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": [] }