Skip to main content

The Open-source Project for a Network Data Access Protocol (OPeNDAP), developed at the University of Rhode Island, enables remote datasets to be accessed through familiar data analysis and visualization packages, just as if they resided locally on the user's machine. OPeNDAP handles transport, translation, and subsetting of data residing in most Earth science data formats, and provides tools for transforming existing applications into OPeNDAP clients (for example, enabling them to remotely access OPeNDAP served data). View OPeNDAP documentation and resources.

OPeNDAP requires the use of Earthdata Login account. Watch our video tutorial to learn how to sign up for an account.

Tool at a Glance

OPeNDAP News

Filters
The  Climate Prediction Center (CPC) 4 km Infrared (IR) dataset archive now extends back to January 1998, offering over 25 years of high-resolution infrared observations and continuing into the present.
News
June 20, 2025
SHOWING 4 OF 5

OPeNDAP Learning Resources

Filters

Daymet Daily V4 R1 from NASA Earthdata Cloud via OPeNDAP

This tutorial shows how to perform complex regional and temporal subsetting directly on Daymet Daily datasets using the NASA Earthdata OPeNDAP Hyrax.
External Resource
Jupyter Notebook
Sept. 29, 2026

How to Access DSCOVR_EPIC_L4_TO3 Data using OPeNDAP with Python3 and Calculate Daily Statistics from Instantaneous Data

Demonstrates how to remotely access the Deep Space Climate Observatory (DSCOVR) L4 instantaneous total ozone column data files via OPeNDAP, and then analyze the data by resampling instantaneous data into daily averages.
External Resource
Jupyter Notebook
April 10, 2026
SHOWING 4 OF 16

Join Our Community of NASA Data Users

While NASA data are openly available without restriction, an Earthdata Login is required to download data and to use some tools with full functionality.

Learn About the Benefits of Earthdata Login

Get Help

QUESTIONS & SUPPORT

Have a question?

Get help with NASA Earth science data, datasets, tools, services, and metadata on the Earthdata Forum. Experienced staff in the data user community review and answer questions.

Get help on Earthdata Forum
Earthdata
Forum