GET

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/4420/?format=api
HTTP 200 OK
Allow: GET, HEAD, OPTIONS
Content-Type: application/json
Vary: Accept

{
    "ob_id": 4420,
    "uuid": "33f44351f9ceb09c495b8cef74860726",
    "title": "AMDAR (Aircraft Meteorological Data Relay) reports collected by the Met Office MetDB System",
    "abstract": "The Aircraft Meteorological Data Relay (AMDAR) measurements describe hourly observations from aircraft across the world during all stages of flight. The observations cumulate into 160,000 reports a day, giving measurements of parameters such as aircraft characteristics, wind speed and direction, degree of turbulence, and air temperature. The data are collected by observation stations worldwide and transmitted within the AMDAR message, which prior to March 1992, was known as ASDAR(Aircraft to Satellite Data Relay).",
    "keywords": "Met Office, MetDB, AMDAR, meteorological data",
    "publicationState": "published",
    "dataPublishedTime": "2008-08-08T14:00:43",
    "doiPublishedTime": null,
    "updateFrequency": "continual",
    "status": "ongoing",
    "result_field": {
        "ob_id": "https://api.catalogue.ceda.ac.uk/api/v2/observations/4421/?format=api",
        "dataPath": "/badc/ukmo-metdb/data/amdars",
        "oldDataPath": [],
        "storageLocation": "internal",
        "storageStatus": "online",
        "volume": 783531749526,
        "numberOfFiles": 5799,
        "fileFormat": "&lt;div property=\"cedacat:formats\"&gt;\n&lt;div class=\"formats\"&gt;Data availability and file format&lt;/div&gt;\n&lt;p&gt;The data are held in the BADC-CSV file format, each of which will contain one or more data records and are comma separated variables. \"Metadata\" are provided giving a full description of the content of the data. More information about the file format can be found on the &lt;a href=\"http://badc.nerc.ac.uk/help/formats/badc-csv/\"&gt;BADC-CSV format page&lt;/a&gt;, which also contains two example files taken from the MetDB dataset.&lt;/p&gt;\n&lt;p&gt; The file format for the &lt;a href=\"http://badc.nerc.ac.uk/data/ukmo-metdb/amdars.html\"&gt; Aircraft Meteorological Data Relay data table&lt;/a&gt;, describes what each column in the data table represents.&lt;/p&gt;\n\n&lt;/div&gt;\n\n\n"
    },
    "timePeriod": "https://api.catalogue.ceda.ac.uk/api/v2/times/1258/?format=api",
    "geographicExtent": "https://api.catalogue.ceda.ac.uk/api/v2/bboxes/1/?format=api",
    "nonGeographicFlag": false,
    "phenomena": [
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/54187/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/54189/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/54192/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/60816/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/69076/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/69077/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/81079/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/81080/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/81081/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/81082/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/81083/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/81084/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/81085/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/81086/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/81087/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/81088/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/81089/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/81090/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/81091/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/81092/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/81093/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/81094/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/81095/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/81096/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/81097/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/81098/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/81099/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/81100/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/81101/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/81102/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/81103/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/81104/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/81105/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/81106/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/81107/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/81108/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/81109/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/81110/?format=api"
    ],
    "dataLineage": "Data are extracted from the Met Office's \"metDB\" system and supplied to BADC. These are then processed to generate BADC-CSV files, where possible. METARS and CLIMAT message types are stored as original message types only within http://data.ceda.ac.uk/badc/ukmo-metdb/raw",
    "removedDataTime": null,
    "removedDataReason": "",
    "language": "English",
    "identifier_set": [
        "https://api.catalogue.ceda.ac.uk/api/v2/identifiers/2973/?format=api"
    ],
    "projects": [
        "https://api.catalogue.ceda.ac.uk/api/v2/projects/4405/?format=api"
    ],
    "observationcollection_set": [
        "https://api.catalogue.ceda.ac.uk/api/v2/observationcollections/4355/?format=api"
    ],
    "responsiblepartyinfo_set": [
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/20827/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/20829/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/20830/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/20831/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/20833/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/41725/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/41726/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/20828/?format=api"
    ],
    "procedureAcquisition": "https://api.catalogue.ceda.ac.uk/api/v2/acquisitions/4423/?format=api",
    "procedureCompositeProcess": null,
    "procedureComputation": null,
    "permissions": [
        {
            "ob_id": "https://api.catalogue.ceda.ac.uk/api/v2/observations/2532/?format=api",
            "useLimitation": null,
            "accessConstraints": null,
            "accessCategory": "restricted",
            "accessRoles": "ukmo_wx",
            "label": "restricted: ukmo_wx group",
            "licenceURL": "https://artefacts.ceda.ac.uk/licences/specific_licences/ukmo_agreement.pdf",
            "licenceClassifications": "academic"
        },
        {
            "ob_id": "https://api.catalogue.ceda.ac.uk/api/v2/observations/2533/?format=api",
            "useLimitation": null,
            "accessConstraints": null,
            "accessCategory": "restricted",
            "accessRoles": "ukmo_wx_gov",
            "label": "restricted: ukmo_wx_gov group",
            "licenceURL": "https://artefacts.ceda.ac.uk/licences/specific_licences/ukmo_agreement_gov.pdf",
            "licenceClassifications": "policy"
        }
    ],
    "discoveryKeywords": [
        {
            "ob_id": 1138,
            "name": "NDGO0003"
        }
    ]
}