Optimizing Access to Distributed Scientific Datasets

OPeNDAP is a free, open-source software that streamlines workflows & reduces costs for researchers, data managers & data providers.

Did you know? OPeNDAP is also a 501(c)(3) nonprofit corporation with the mission to Democratize Data Access.

GET INVOLVED

New to OPeNDAP? Start here.

Learn How to Get Started with OPeNDAP

Check out our library of helpful resources including quickstart guides, user-created video tutorials, and more.

Contribute to the OPeNDAP Community

How do YOU use OPeNDAP? We invite you to share your insights with fellow users, attend our events, or contribute to our open-source code.

Work with the OPeNDAP Team

Have some unique data needs? The OPeNDAP team is always open to collaborations on research proposals and contracts.

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

  years

  of experience in open data access frameworks

  data handlers

  broad data format compatibility

  access patterns

  broad adoption from distinct client APIs.

  petabytes

  of data accessed through OPeNDAP’s framework

  Sign Up for Email Updates

  Join the OPeNDAP Google group to get notified of new releases, tutorials, and community events.

  We facilitate scientific inquiry through free, open-source software that simplifies distributed data access.

  

  Links

  • Documentation
  • Upcoming Events
  • Work With Us
  • Download Software

  Contact

  165 Dean Knauss Dr.
  Narragansett, RI 32882