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

Sea Surface Topography News

Articles, resources, and announcements from Sea Surface Topography.

View all News and Announcements

This visualization from the Ice, Cloud, and land Elevation Satellite (ICESat) shows changes in elevation over Greenland.

Tracking the Itinerant

Geodesists seek crazy precision in measuring sea level.

Feature Article

Dec. 28, 2020

The Un-Ice Age

Earth’s remaining ice sheets head for the ocean.

Feature Article

Dec. 28, 2020

This image of Turkey offers a comparison of the color of the Black Sea (top of the image), which shows a phytoplankton bloom, and the Mediterranean Sea (bottom of the image)

Spin Cycle

So much depends on the ocean's deep churn.

Feature Article

Dec. 28, 2020

In this image from the NASA Aqua satellite, a swirling phytoplankton bloom becomes visible from space when warm waters from the Kuroshio Current collide with the frigid waters of the Oyashio Current off the eastern coast of Japan.

Probing the Black Current

Satellites and ocean bottom instruments tell similar stories.

Feature Article

Dec. 28, 2020

Dr. Philip Thompson

The global average sea level is rising. Dr. Philip Thompson uses NASA Earth science data to explore how—and when—this will affect vulnerable communities.

Data User Story

Dec. 22, 2020

Cara Wilson

Who uses NASA Earth science data? Cara Wilson, to better understand the possible connection between harmful algal blooms and southern right whale mortality.

Data User Story

Dec. 22, 2020