data.csiro.au
Dataset repository covering astrophysics and astronomy, with searchable image.
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Browse dated community launches and imported or editorial directory additions.
crystallography.net
The Crystallography Open Database is an open-access collection of crystal structures of organic, inorganic, metal-organic compounds and minerals, excluding biopolymers. It provides browsing and searching, including search by structural formula and JSME search, and accepts deposited data. The site reports 535015 entries. All data and the database are dedicated to the public domain under the CC0 license.
cryptodb.org
Browse research datasets and datasets related to biology.
cryoseek.org
Browse research datasets and image related to basic in biology and medicine.
cddis.nasa.gov
The Crustal Dynamics Data Information System (CDDIS) is a NASA data system that has migrated to the Earthdata platform, with its former page redirecting users to the new CDDIS location on the Earthdata website.
cnefdata.org
The Cross-National Equivalent File is a household panel data package of equivalently defined variables for 9 general population household panel surveys. It harmonizes and makes available cross-national panel data for social science research, with country-specific data offered online through the CNEF-Investigator platform. Access requires an application.
data.crossda.hr
CROSSDA is a searchable archive of social science research data, presenting datasets with metadata and DOI references. Its listings include studies from Croatian researchers on topics such as artificial intelligence and work, definitions of terrorism, misinformation, and youth wellbeing. Records can be sorted and browsed by name, date and version.
czo-archive.criticalzone.org
An archived national data page for the U.S. Critical Zone Observatories program, which ended in December 2020 and was succeeded by the Critical Zone Collaborative Network. It provides dataset listings, other data access routes, data policies, and cyberinfrastructure information, with a metadata catalog spanning over 400 datasets across the observatory network.
criik.com
Open-data catalog covering South America, with filters and downloadable records.
dspace.lib.cranfield.ac.uk
Research data portal for exploring agriculture, forestry and veterinary medicine records, including experimental data.
cranach.ub.uni-heidelberg.de
Browse research datasets and datasets related to art history.
apex.ipk-gatersleben.de
Research data portal for exploring biology records, including genomic data.
covid19dataportal.org
Research data portal for exploring biology records, including datasets.
pcmdi.llnl.gov
CMIP5 is the fifth phase of the Coupled Model Intercomparison Project, promoted by the WCRP Working Group on Coupled Modelling with input from IGBP AIMES. It provides a multi-model framework for coordinated climate model experiments, including assessment of carbon cycle and cloud feedbacks, climate predictability on decadal timescales, and differing responses of similarly forced models.
nercrd.psu.edu
Searchable repository for finding economic policy, applied economics datasets and datasets.
maps-nevcounty.opendata.arcgis.com
Search and download open datasets published for Nevada City, California, United States.
opendata.countygp.ab.ca
Search engineering data collections and supporting datasets from CAN.
cottongen.org
Find and access agriculture, forestry and veterinary medicine research data, with indexed datasets.
cottonfgd.org
Dataset repository covering basic in biology and medicine, with searchable datasets.
cosmosim.org
CosmoSim is a database providing results from cosmological simulations performed within the MultiDark and Bolshoi projects and Galaxies. It reports dark matter simulations of the universe and galaxy catalogs for the MDPL2 simulation. The database can be queried by entering SQL statements directly into a query interface or through scripted access; registration provides full access.
cdaac-www.cosmic.ucar.edu
Research data portal for exploring atmospheric, oceanography and climate records, including datasets.
about.coscine.de
Browse indexed datasets and documentation for research and secondary analysis.
correlatesofwar.org
The Correlates of War Project collects, disseminates and supports quantitative data on international relations. It states commitments to replication, data reliability, documentation, review and transparency of collection procedures, and to free public release of datasets to the research community, with version numbers, documentation and follow-on versions where possible.
corpus-musicae-ottomanicae.de
Research data portal for exploring art history, music, theatre and media studies records, including dataset.