Delivery of Suomi National Polar-orbiting Partnership (Suomi NPP) satellite data products will cease on November 1, 2026. Data users should transition now to alternative products from NOAA-21 and NOAA-20. Suomi NPP data announcement

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Read the latest Ka-band Radar Interferometer (KaRIn) news and access learning resources designed to help you optimize your Earth science research.

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visualization of SWOT sea surface height data in the western hemisphere

Unveiling the First Global Observations of High Resolution Sea Surface Height From SWOT

SWOT data reveals the topography of the ocean surface at finer scales than ever before.

Data in Action

Dec. 7, 2023

SWOT simulated data of the Mississippi River

SWOT – An Essential Instrument for Assessing Freshwater Availability Set to Launch

The Surface Water and Ocean Topography (SWOT) mission will provide the first-ever full view of Earth's freshwater bodies from space.

Data in Action

Dec. 12, 2022

sea surface height grid at the spatial resolution of 2 degrees

Sea Surface Height Grids With Different Spatial Resolutions

SWOT and ECCO can measure sea surface height at different resolutions for monitoring the ocean's vertical heat, carbon transport, and other processes.

Data in Action

Nov. 2, 2022

Webinar Banner Image- PO.DAAC (03/24/21)

An Open Ocean of Remote Sensing and In Situ Data for Science in the Cloud

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

image of phytoplankton bloom in the Baltic Sea

Globally Averaged Sea Level

Charting global mean sea level rise since 1900.

Data in Action

Nov. 19, 2020

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PO.DAAC Releases a Virtual Data Store for SWOT Sea Surface Height Data

This virtualized data representation of the SWOT version D Basic time series allows users to access and download only the parts they want.

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June 5, 2026

data visualization shows the mean flow of global rivers for March 2023 to May 2025, as seen by the Surface Water and Ocean Topography (SWOT) platform (m3/s). Yellow indicates larger water flow estimates, while blues reflect smaller river flow estimates.

NASA and CNES Release Unprecedented Global River Discharge and Water Quality Estimates

New SWOT L4 river water flow and quality estimates support water resources management, extremes forecasting, and science research.

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Jan. 16, 2026

New Data in Action: Potential of SWOT for Sea Ice Monitoring Unveiled

Learn how SWOT data may fill gaps in the observational record of sea ice thickness change.

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Nov. 13, 2025

New Tutorial: Get Started with OPeNDAP to Subset and Download NASA Earth Data

Drill down to the specific NASA Earth science data you need using OPeNDAP.

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Sept. 10, 2025

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Unveiling the First Global Observations of High Resolution Sea Surface Height From SWOT

SWOT – An Essential Instrument for Assessing Freshwater Availability Set to Launch

Sea Surface Height Grids With Different Spatial Resolutions

An Open Ocean of Remote Sensing and In Situ Data for Science in the Cloud

Globally Averaged Sea Level

KaRIn News

PO.DAAC Releases a Virtual Data Store for SWOT Sea Surface Height Data

NASA and CNES Release Unprecedented Global River Discharge and Water Quality Estimates

New Data in Action: Potential of SWOT for Sea Ice Monitoring Unveiled

New Tutorial: Get Started with OPeNDAP to Subset and Download NASA Earth Data

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