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Poseidon-4 Radar Altimeter Resources
Earthdata resources for users working with NASA’s Poseidon-4 Radar Altimeter data include tutorials and other learning resources, news announcements such as instrument updates and data releases, user guides and related documents, and frequently asked questions.
Poseidon-4 Radar Altimeter Learning Resources
Charting global mean sea level rise since 1900.
Data in Action
Nov. 19, 2020
Join us to learn about NASA's archive for physical oceanography data in the context of Open Science. We'll provide you with an introduction to remote sensing and in situ products at PO.DAAC and show you how to work with these data in the cloud.
Webinar
April 22, 2021
Esta capacitación de ARSET introduce datos, métodos y herramientas útiles para monitorear peligros naturales en pequeñas naciones insulares.
Training
Aug. 18-26, 2021
This ARSET training introduces data, methods, and tools useful for monitoring natural hazards on small island nations.
Training
Aug. 18-26, 2021
This ARSET workshop provides an overview of NASA resources for monitoring climate impacts on extreme weather, water, food, and health.
Training
Oct. 24, 2022
Satellite data provides indicators of El Niño events.
Data in Action
June 15, 2023
Sea surface height data from the Sentinel-6 Michael Freilich mission reveal complex interactions between the ocean and the atmosphere that affect global weather and climate such as El Niño.
Data in Action
Oct. 31, 2023
For more than 30 years, NASA and its partners have flown satellite altimeter missions providing essential sea level change data to inform coastal communities.
Data in Action
Feb. 5, 2025
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Sentinel-6B observations will also inform early warnings and forecasts systems.
News
Dec. 16, 2025
A summary of datasets, products, and resources released by NASA’s Distributed Active Archive Centers (DAACs) in April 2025.
News
May 13, 2025
The new Sea Level Change Data Pathfinder highlights the different datasets used to piece together the status and drivers of sea level rise.
Feature Article
Feb. 18, 2022
NASA and several partners are renaming a key ocean observation satellite in honor of Dr. Michael Freilich, former head of NASA’s Earth Science Division.
News
Nov. 4, 2020
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Frequently Asked Questions
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