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/7881/?format=api
{ "ob_id": 7881, "uuid": "91a111ab2ac48432f816d1a5b39e0ad8", "title": "Data from FSF Erbium doped Spectralon panel and Mylar and McCrone Filters at NERC Field Spectroscopy Facility (FSF) for the NCAVEO - Network for Calibration and Validation of EO data Campaign", "abstract": "The Network for Calibration (cal) and Validation (val) of Earth Observation data NCAVEO organised a cal-val field experiment at Chilbolton in June 2006. The aim is to undertake a validation exercise based on the protocols and methods developed by the Validation of LAnd European Remote sensing \nInstruments (VALERI) project, but modified as necessary for UK conditions. The experiment is a scoping exercise for the establishment of one or more VALERI sites in the UK as well as an opportunity to learn and share best practice amongst NCAVEO partners and the wider community.", "keywords": "", "publicationState": "published", "dataPublishedTime": "2007-10-17T00:14:57", "doiPublishedTime": null, "updateFrequency": "notPlanned", "status": "completed", "result_field": { "ob_id": "https://api.catalogue.ceda.ac.uk/api/v2/observations/7882/?format=api", "dataPath": "/neodc/ncaveo_field/data/FSF_Calibration", "oldDataPath": [], "storageLocation": "internal", "storageStatus": "online", "volume": 54134798, "numberOfFiles": 17, "fileFormat": "<div property=\"cedacat:formats\">\r\n<div class=\"formats\">Data Availability</div>\r\n<p>\r\nDatasets for the NCAVEO field experiment available to participants of the experiment <a href=\"http://neodc.nerc.ac.uk/browse/neodc/ncaveo_field\">through the NEODC archive</a> include:</p>\r\n<ul class=\"style1\">\r\n<li><strong>Validation Site Details</strong> \r\n<ul>\r\n<li>Polygon shapefile showing the field boundaries and an attribute table containing the field names, the owner name and the type of crop growing in each field. Source: NCAVEO \r\n</li><li>Polygon shapefile showing the study area boundaries. Source: NCAVEO \r\n</li><li>OS coordinates of sites. Source: NCAVEO </li></ul>\r\n</li><li><strong>Landsat Images</strong>: \r\n<ul>\r\n<li>Both images resized to the study area and exported as geotiff using bands 4,5, and 3 as RGB. \r\n<ul>\r\n<li>Landsat TM Image (12th June 1992). Source: MIMAS archive \r\n</li><li>Landsat ETM+ Image 12th May 2001. Source: GLCF </li></ul></li></ul>\r\n</li><li><strong>Centre for Ecology and Hydrology (CEH) Land Cover Map 2000 (LCM2000) Data <sup>1</sup></strong> \r\n<ul>\r\n<li>25 m derived raster format and Level 2 vector format </li></ul>\r\n</li><li><strong>NEXTMap Digital Elevation Model <sup>2</sup></strong> \r\n</li><li><strong>Field Measurements</strong> \r\n<ul>\r\n<li>Leaf Area Index measurements by LAI2000 and SunScan instruments \r\n</li><li>Reflectance Spectra of Spring Barley from field Brockley \r\n</li><li>Microtops sunphotometer data \r\n</li><li>Hemispherical photos</li></ul>\r\n</li><li><strong>Field Spectroscopy Facility Calibration Files</strong> \r\n<ul>\r\n<li>Reflectance Reference Panel Calibration and Spectroradiometer Wavelength Verification Files. Source: NERC FSF</li></ul>\r\n</li><li><strong>CHRIS Proba Data </strong>\r\n<ul>\r\n<li>L1b data. Source: Surrey Satellite Technology Ltd/ESA \r\n</li><li>L3b data (destriped and registered to the OS grid). Source: NCAVEO</li></ul>\r\n</li><li><strong>Environment Agency Airborne Data</strong>: \r\n<ul>\r\n<li>Digital photography \r\n</li><li>CASI data \r\n</li><li>LiDAR data </li></ul></li></ul>\r\n<p class=\"style3\">1 See <a href=\"http://catalogue.ceda.ac.uk/uuid/1bd42cf1d9aa4603843402f3a6af79bb\">here</a> for details and application for access to the LCM2000 data </p>\r\n<p class=\"style3\">2 Available through NEODC to NERC staff and award holders only. See <a href=\"http://catalogue.ceda.ac.uk/uuid/8f6e1598372c058f07b0aeac2442366d\">here</a> for details and application for access to NEXTMap data </p>\r\n<p class=\"style1 \">Available elsewhere:</p>\r\n<ul>\r\n<li class=\"style1\"><strong>SSSI data</strong>: The dataset for Chilbolton can be downloaded from <a href=\"http://www.english-nature.org.uk/pubs/gis/GIS_Register.asp\">English Nature</a> as follows: \r\n<ul>\r\n<li>register for the service \r\n</li><li>select the option to download SSI data. Data are delivered based on 100 km squares. The study <span class=\"style1\">area is covered by the Ordnance Survey tile SU. </span></li></ul>\r\n</li><li class=\"style1\"><strong>OS Map data</strong>: 1:25000 OS Colour Raster, available from <a href=\"http://edina.ac.uk/digimap/\">Digimap</a> (Edina service) to registered users </li></ul>\r\n\r\n<p class=\"style1\">If you have further relevant datasets to contribute to this project, please contact <a href=\"mailto:neodc@rl.ac.uk\">NEODC</a>.</p>\r\n<p>\r\n\r\n</p><center><img alt=\"Chilbolton dish\" height=\"217\" src=\"http://www.neodc.rl.ac.uk/images/data_pages/Chilbolton_dish_from_CCLRC_website.jpg\" width=\"231\" />\r\n<p><em>Aerial photograph: Chilbolton dish (source: CCLRC (now STFC) website) </em></p></center>\r\n</div>" }, "timePeriod": "https://api.catalogue.ceda.ac.uk/api/v2/times/2256/?format=api", "geographicExtent": "https://api.catalogue.ceda.ac.uk/api/v2/bboxes/172/?format=api", "nonGeographicFlag": false, "phenomena": [ "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/2713/?format=api", "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/2714/?format=api", "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/2715/?format=api", "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/2716/?format=api", "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/2717/?format=api", "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/2718/?format=api", "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/2719/?format=api", "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/2720/?format=api", "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/2721/?format=api", "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/2723/?format=api", "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/2724/?format=api", "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/2725/?format=api", "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/2726/?format=api", "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/9557/?format=api", "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/9558/?format=api", "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/9559/?format=api", "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/9560/?format=api", "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/9561/?format=api", "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/9562/?format=api", "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/9563/?format=api" ], "dataLineage": "These data were provided to NEODC by university of Southampton, who carried out work to convert formats to NASA-Ames, and write metadata documents. The metadata documents describing the processing are archived alongside the data as PDF files.", "removedDataTime": null, "removedDataReason": "", "language": "English", "identifier_set": [ "https://api.catalogue.ceda.ac.uk/api/v2/identifiers/5121/?format=api" ], "projects": [ "https://api.catalogue.ceda.ac.uk/api/v2/projects/7827/?format=api" ], "observationcollection_set": [ "https://api.catalogue.ceda.ac.uk/api/v2/observationcollections/7824/?format=api", "https://api.catalogue.ceda.ac.uk/api/v2/observationcollections/30128/?format=api" ], "responsiblepartyinfo_set": [ "https://api.catalogue.ceda.ac.uk/api/v2/rpis/32432/?format=api", "https://api.catalogue.ceda.ac.uk/api/v2/rpis/32437/?format=api", "https://api.catalogue.ceda.ac.uk/api/v2/rpis/32431/?format=api", "https://api.catalogue.ceda.ac.uk/api/v2/rpis/32434/?format=api", "https://api.catalogue.ceda.ac.uk/api/v2/rpis/32435/?format=api", "https://api.catalogue.ceda.ac.uk/api/v2/rpis/32436/?format=api", "https://api.catalogue.ceda.ac.uk/api/v2/rpis/32438/?format=api", "https://api.catalogue.ceda.ac.uk/api/v2/rpis/32433/?format=api" ], "procedureAcquisition": "https://api.catalogue.ceda.ac.uk/api/v2/acquisitions/7884/?format=api", "procedureCompositeProcess": null, "procedureComputation": null, "permissions": [ { "ob_id": "https://api.catalogue.ceda.ac.uk/api/v2/observations/2522/?format=api", "useLimitation": null, "accessConstraints": null, "accessCategory": "registered", "accessRoles": null, "label": "registered: None group", "licenceURL": "http://www.nationalarchives.gov.uk/doc/open-government-licence/version/3/", "licenceClassifications": "any" } ], "discoveryKeywords": [ { "ob_id": 1138, "name": "NDGO0003" } ] }
