United Kingdom Space Agency

A photograph of the Amazon River Delta, captured by Landsat in 2006.

AirSWOT is using parts of Saskatchewan as a testing ground for mapping water levels.

Pictured are team members who helped load the hardware for the Surface Water and Ocean Topography (SWOT) satellite's research instruments onto a C-17 airplane pose for a picture. The payload left M...

Part of the Surface Water and Ocean Topography (SWOT) satellite's science instrument payload sits in a clean room at NASA's Jet Propulsion Laboratory during assembly.  

Canada is home to more than 30,000 lakes including these water bodies in Northern Alberta. The abundance of surface freshwater in Canada makes it a prime target for AirSWOT investigations.

Visiting Scout uses a color-coded, calibrated stick to determine "sea surface topography" within a wooden box while his sister records his results by placing stickers on a card.

SWOT will collect data across a 75-mile (120-kilometer) wide swath, with a gap in the center for an altimetry track. This animation shows the collection of data over the state of Florida, which is ...

A view of SWOT from inside a U.S. Air Force C-17 aircraft, as it was being loaded en route to Thales Alenia Space near Cannes, France.

Teams from NASA's Jet Propulsion Laboratory in Southern California and the March Air Reserve Base in Riverside County, California, loaded the scientific payload for the SWOT Earth-observing satelli...

Artist’s concept of seven altimeters orbiting Earth: Jason-CS/Sentinel-6B, SWOT, Sentinel-6A, Jason 3, TOPEX/Poseidon, Jason 1 and OSTM/Jason 2.

SWOT's nominal coverage during its 3-year science orbit will include measurements between 78°N and 78°S collected over a period of 21 days. Maps show the coverage after 3 days (left) and the full 2...

The first 90 days of the SWOT science mission will be flown in a "fast-sampling" phase that revisits specific areas once per day. This phase will begin after a 90-day commissioning phase for engine...

SWOT will provide NASA’s first global survey of Earth’s surface water.

NASA has selected Space Exploration Technologies (SpaceX) of Hawthorne, California, to provide launch services for SWOT.

SWOT technologies - advanced wide-swath technology, ocean and surface water topography measurements, and high-resolution products - will support such societal needs as dams, shipping, and surface w...

NASA’s Blue Marble

A photograph of the Varzea Forest area of Brazil (3 of 4).

An alternate logo for the Surface Water Ocean Topography (SWOT) Mission.

Floodplain Channel in the Amazon

SWOT leaving NASA’s Jet Propulsion Laboratory in Southern California, en route to March Air Reserve Base in Riverside County, California. Once the scientific payload arrived, it was sent to a Thale...

An artist’s concept of the SWOT spacecraft (January 2012).

An artist’s concept of the SWOT spacecraft (March 2012).

Alaska lakes.

AirSWOT plays a key role in SWOT mission development. It allows scientists to study interferometric data before launch and thus be prepared to effectively interpret SWOT data after launch.

A photograph of the Varzea Forest area of Brazil (1 of 4).