Recently added to the directory

PAINT

paint-database.org

PAINT is a database making operational data of concentrating solar power plants available under FAIR data principles: findable, accessible, interoperable, and reusable. Its current data covers calibration images, deflectometry measurements, kinematics settings, and weather information from the solar tower plant in Jülich, Germany. Metadata follows the STAC standard, and software for data processing is publicly available in the project's source code repository.

Searchable repository for finding basic in biology and medicine datasets and datasets.

Pacific Northwest National Laboratory DataHub: Scientific Data Repository

data.pnnl.gov

The Pacific Northwest National Laboratory DataHub is a searchable repository of scientific data and publications. The site offers filtering by category, content type and tags across topics such as biology, earth system science and computing. Listed content types include publications, datasets, people, projects, data sources, institutions and software.

Research data portal for exploring empirical social records, including datasets.

Open data portal depending on ArcGIS.

Ozone Mapping and Profiler Suite

ozoneaq.gsfc.nasa.gov

The Ozone Mapping and Profiler Suite is a NASA resource focused on ozone and atmospheric composition data. It provides access to data and products related to ozone, aerosols, trace gases, reflectivity maps and cloud products, alongside publications, instrument status updates and educational materials. The suite covers data from instruments including TOMS, BUV-SBUV-SBUV/2 and sensors on the S-NPP, NOAA-20 and NOAA-21 satellites.

Oxfordshire Open Data

oxopendata.uk

Oxfordshire Open Data provides a place for the public, researchers and developers to access, analyse and share information about the area. Data may be viewed, re-used and downloaded under licence. The site offers browsing by categories including population, finance, economy, education, elections, environment, food, health, parks, planning, public safety, land and property, and transportation.

Oxford University Research Archive

ora.ox.ac.uk

Oxford University Research Archive is the University of Oxford's repository for its research output. Members of the University of Oxford can deposit research including articles, conference papers, theses and data. The site also presents latest additions.

Find and access humanities research data, with indexed recorded data.

Oxford Brookes University: RADAR

radar.brookes.ac.uk

Find and access engineering research data, with indexed datasets.

Otzar HaHochma

otzar.org

Find data collections, study records and related research documentation.

An ArcGIS Hub open data portal from Ottawa Riverkeeper for discovering, analyzing and downloading data. Data can be downloaded in CSV, KML, Zip, GeoJSON, GeoTIFF or PNG, and API links are provided for GeoServices, WMS and WFS. Analysis is available through charts and thematic maps, with options to create StoryMaps and Web Maps.

Search a government or civic data catalog for reusable public information.

Östersund Municipality Open Data portal

ostersund.se

Browse public datasets, metadata and downloadable records in an open catalog.

OstData

ostdata.osmikon.de

Research data portal for exploring history records, including dataset.

ArcGIS Hub site for discovering, analyzing and downloading data. It supports downloads in CSV, KML, Zip, GeoJSON, GeoTIFF and PNG formats, provides API links for GeoServices, WMS and WFS, and offers analysis with charts and thematic maps.

osnaData

osnadata.ub.uni-osnabrueck.de

osnaData is the research data repository of Osnabrück University, built on the Dataverse platform. It supports the deposit, management and open publication of research datasets in alignment with the university's research data policy.

OSM boundaries

osm-boundaries.com

A web interface for extracting administrative boundaries from OpenStreetMap, such as country and state borders. Users can preview boundaries in the browser and download specific boundaries, whole countries, or filtered selections in various output formats. Data is served unmodified from OpenStreetMap, and downloading requires authentication through an OpenStreetMap.org account.

Orust Municipality Open Data portal

orust.se

Open data portal for searching and downloading public datasets.

Ortolang

ortolang.fr

Search humanities data collections and supporting dataset from FRA.

OrthoMCL

orthomcl.org

Research data portal for exploring basic in biology and medicine records, including datasets.

OrtholugeDB

ortholugedb.ca

OrtholugeDB is a database of Ortholuge-based orthology predictions for completely sequenced bacterial and archaeal genomes. It also contains reciprocal best hit-based ortholog predictions, in-paralog predictions and proposed ortholog groups. Users can compare orthologs across multiple genomes, obtain orthologs between two genomes or for a single gene, and filter results by strain.

Organic Synthesis Search

organic-chemistry.org

A page on the Organic Chemistry Portal that lets users browse synthetic transformations by desired bond formation through a graphical index with links. It also explains target-oriented synthesis, which develops a short high-yielding route to a specific molecule via retrosynthesis, and diversity-oriented synthesis, which builds libraries of varied compounds for screening.

Browse government and civic datasets for Oregon, United States.