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GNSS Resources

Earthdata resources for users working with NASA’s Global Navigation Satellite System (GNSS) data include summary reports, news announcements, and related links.

GNSS Data Summary Reports

GNSS Related Links

GNSS Learning Resources

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The atmosphere visible from space.

NASA CSDA Vendor Focus- PlanetiQ

Join us on Tues., Sept. 30, to learn more about NASA CSDA program vendor PlanetiQ and to learn how to discover, access, and work with their GNSS Radio Occultation (GNSS-RO) data.
Webinar
Sept. 16, 2025
CSDA Vendor Webinar- Spire false color map showing GNSS reflectivity signals

NASA CSDA Program Vendor Focus—Spire

Learn more about about the NASA Commercial Satellite Data Acquisition (CSDA) program vendor Spire and how to discover, access, and work with Spire data.
Webinar
Nov. 7, 2024
image of tsunami impact on the ionosphere

GUARDIAN—Monitoring Earth's Ionosphere for Natural Hazards in Near Real-Time

Learn how to use the GNSS-based Upper Atmospheric Realtime Disaster Information and Alert Network (GUARDIAN) ionospheric monitoring software to supplement early warning systems (EWS) detections of natural hazards such as tsunamis, volcanic eruptions, earthquakes, and geomagnetic and solar storms.
Webinar
Sept. 18, 2023
Crustal Dynamics Data Information System webinar banner image showing Global Navigation Satellite System data.avigation

GNSS Products at NASA's CDDIS for Disaster Monitoring, Crustal Deformation, Extreme Weather, and Other Applications

Join us on Sept. 28 to learn about the NASA Making Earth System Data Records (ESDR) for Use in Research Environments (MEaSUREs) Extended Solid Earth Science ESDR System (ESESES) project, whose Global Navigation Satellite System (GNSS)-derived data products enable research on tectonic motion, crustal deformation, earthquakes, tsunamis, sea level rise, extreme weather, and more!
Webinar
Sept. 8, 2022
image collage of satellite data images of Earth

GNSS Radio Occultation Science and Applications

Join us to learn more about Global Navigation Satellite System (GNSS) radio occultation science and applications! We will highlight science impacts in the areas of numerical weather prediction, forecasting cyclone genesis, and space weather.
Webinar
April 19, 2022
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GNSS News

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This graphic shows a global positioning system satellite beaming a signal through Earth's atmosphere. The navigation satellite is on the far left of the image and has an orange-colored signal line extending in a straight line to the right. A light blue box with the words GPS Satellite is in the upper left corner. In the lower right corner of the image is Earth colored in blue and green. The image background is colored black.

Weather Ballooning from Space

A NASA-funded project is creating a cloud-based radio occultation data archive for atmospheric researchers.
Feature Article
Sept. 18, 2023
A headshot of Dr. Yehuda Bock, Distinguished Researcher and Senior Lecturer at the Scripps Institution of Oceanography’s Institute of Geophysics and Planetary Physics. Dr. Bock is standing before an ocean backdrop, wearing a brown suitcoat, dark gray shirt, and gray tie.

Dr. Yehuda Bock

Bock provides NASA's Crustal Dynamics Data Information System (CDDIS) with data products based on ground displacement data.
Data User Story
Aug. 24, 2023
Headshot of Dr. Byram taken outside

Dr. Sharyl Byram

Data from NASA’s Crustal Dynamics Data Information System help Dr. Sharyl Byram find the exact coordinates of any point on Earth.
Data User Story
Aug. 25, 2022
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