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Optimizing Access to Distributed Scientific Datasets
OPeNDAP is a free, open-source software that streamlines workflows & reduces costs for researchers, data managers & data providers.
Photo by NASA
GET INVOLVED
New to OPeNDAP? Start here.
WHAT IS OPeNDAP?
OPeNDAP enables scientists to share data more easily over the internet.
OPeNDAP refers to:
- The nonprofit corporation Open-source Project for a Network Data Access Protocol, Inc.
- Open-source software to realize a Web-based data access protocol (or “DAP”), including:
- Server software deployed by NASA and hundreds of otherdata providers
- Client software employed for data retrieval in data analysis apps (e.g. those utilizing NetCDF) and bespoke programs in many languages (e.g. Python)
BENEFITS OF OPeNDAP
Why Use OPeNDAP?
Retrieve Specific Subsets of Data
Access only the data points you need, eliminating the prohibitive time and cost of downloading full datasets.
Multiple File Formats
OPeNDAP “translates” data so that you can access data originally stored in a wide variety of file formats.
Multiple Data Types
OPeNDAP supports many types of data analyzed in scientific inquiry including gridded data, time series, and more.
Integration with Preferred Tools
Data files served through OPeNDAP can be accessed and read by commonly used tools including NetCDF, Python libraries, MATLAB, ArcGIS, and Panoply.
Extensibility & Customization
Have a unique distributed data need? Build on our open-source code yourself, or work with our team to create a custom server application.
CLIENTS & FUNDERS
OPeNDAP Supporters
The following institutions have provided (and some continue to provide) financial support to OPeNDAP.
Open Data Access Accelerates Discovery
30+
years
of experience in open data access frameworks
14+
data handlers
broad data format compatibility
10+
access patterns
broad adoption from distinct client APIs.
10+
petabytes
of data accessed through OPeNDAP’s framework
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