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  • Masthead platform instrument info GNSS Network Stations
  • Masthead date range January 2018

The Global GNSS Network

NASA’s CDDIS supports the International GNSS Service (IGS) and its Real-Time Service as a Global Data Center. The symbols on this map indicate the current locations of Global Navigation Satellite System (GNSS) sites providing data in files (red symbols) and in real-time “streams” (circles).

Tsunami Detection Using GNSS Data

GNSS sites provide daily, hourly, and sub-hourly data. In addition, the CDDIS disseminates data in real-time “streams.” Scientists are studying the use of GNSS data in developing timely tsunami detection systems to warn coastal communities in real-time of possible earthquake-related events.

ACCESS NASA EARTH SCIENCE DATA

NASA's data policy ensures that all NASA data are available fully, openly, and without restrictions. Here's what this means to you.

About EOSDIS

The Earth Observing System Data and Information System is a key core capability in NASA’s Earth Science Data Systems Program. It provides end-to-end capabilities for managing NASA’s Earth science data from various sources—satellites, aircraft, field measurements, and various other programs.

Dust Storm in the Persian Gulf

Image captured on 21 January 2018, by the VIIRS instrument, on board the joint NOAA/NASA Suomi-NPP satellite.

Webinar: NASA PO.DAAC State Of The Ocean- I spy with my little eye something...

Event Date: January 30, 2018

Join us to learn how to use the NASA Physical Oceanography Distributed Active Archive Center (PO.DAAC) State Of The Ocean (SOTO) toolkit to visualize and compare physical oceanography data!

Webinar: Bio-Optical in situ Data Discovery and Access with SeaBASS

Event Date: January 24, 2018

This webinar will cover how SeaBASS can be leveraged for data search, discovery, and access, and will demonstrate how SeaBASS supports NASA’s ocean color satellite products and the broader scientific community. Join us to learn more!

The big fat puzzle

Can cold melt fat?

User Profile: Dr. Laura Bourgeau-Chavez

Who uses NASA Earth science data? Dr. Laura Bourgeau-Chavez, for studying wetlands and wildfire.

OMPS Near Real-Time Data Now Available Through LANCE

Near real-time ozone and sulfur dioxide data products from the OMPS instrument are now available through the Land, Atmosphere Near real-time Capability for EOS (LANCE) system.

AppEEARS 2.0: New Features and Data to Further Improve User Workflow Efficiency

The latest enhancements to the AppEEARS program provide access to more datasets along with greater flexibility for working with Earth observing data from NASA and other federal data archives.

Getting Ready for NISAR—and for Managing Big Data using the Commercial Cloud

The upcoming NISAR satellite mission is expected to add as much as 85 TB of data each day to the EOSDIS archive. The commercial cloud is being explored as a way to archive and disseminate this extremely high volume of data efficiently.

Bringing Light to the Night: New VIIRS Nighttime Imagery Available through GIBS

New imagery products available through GIBS provide stunning views of Earth at night.

News & Events

Collaborate With Us

EOSDIS has several channels that allow collaboration with the scientific community, EOSDIS data holdings and directly with NASA.

  1. Welcome to Earthdata 3.0

    Enter your search term to search datasets, news, and articles.

  2. Science Disciplines

    Browse by science discipline to see available measurements and supporting DAACs.

  3. News & Events

    Click on one of these filters to see news & events specifically related to your selection.

  4. Collaborate

    Collaborate with us through our API & program access points.

  5. Feedback Module

    Have a question or comment? Send us your feedback and we'll get back to you as soon as we can.