SWOT - Surface Water and Ocean Topography

Science Center Objects

Satellite altimetry associated with the Surface Water and Ocean Topography (SWOT) mission offers a solution for measuring (1) river stage and slope, (2) water surface area including mean channel width and (3) derivatives such as river discharge. The measurements can be used to track changes in these variables and provide an accounting of the Earth's fresh-water bodies from space at the reach scale

In preparation for the SWOT mission, our Science Definition Team will offer expertise in applying altimetry data to   compute, calibrate and validate river stage and slope, water surface area, and river discharge.



UAS discharge measurement Tanana River Train Bridge AK

Velocity radar mounted on drone as remote sensing platform to determine discharge on the Tanana River, AK.  Discharge measurements were compared to measurement made from boat.