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In Mankerni, Sri Lanka, four eyewitnesses to the December 26, 2004 tsunami stand on the remains of the house where they were when they first realized a tsunami was about to strike.

Making Waves in Tsunami Research

Data from Jason and TOPEX/Poseidon give scientists the first detailed profile of a major tsunami event.
Feature Article
July 22, 2020
The image above shows ocean images translating to a model

Lovely, Dark, and Deep

Scientists use TOPEX/Poseidon data to better gauge the impact of the ocean on climate change.
Feature Article
July 22, 2020
This picture of the Hawaiian Islands was taken from the Shuttle Discovery in September 1988.

Little Islands, Big Wake

QuikSCAT and TOPEX help scientists notice the long wake near Hawaii.
Feature Article
July 22, 2020
The above image shows a research vessel at the edge of a first year ice floe.

Ice & Sky

Canadian RADARSAT data is used to indicate the presence of open water in polar ice.
Feature Article
July 22, 2020
SeaWinds can produce a detailed structure of a hurricane, as in this image of Hurricane Floyd. (Image courtesy of the Winds at JPL).

Forecasting Fury

Data from NASA satellites allow researchers to detect potential hurricanes up to two days earlier than with traditional forecasting methods.
Feature Article
July 22, 2020
The image above shows Pacific Ocean temperatures at their peak on December 10, 1997.

Eye on the Ocean

TOPEX/Poseidon measured the gradual build-up of warm water in the easter equatorial Pacific.
Feature Article
July 22, 2020
The SSM/I image above shows the El Nino that occurred in 2014.

El Niño or Not?

An ocean general circulation model produces sea level and temperature responses to four separate events.
Feature Article
July 21, 2020
A worker maintains a Tropical Atmosphere Ocean (TAO) buoy on the equatorial El Niño array in the Pacific Ocean.

Double Vision

The TOPEX and Poseidon satellites monitor ocean surface topography.
Feature Article
July 21, 2020
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