ALT Sea level data gathered Jan. 21 in the Gulf Stream by SWOT’s KaRIn instrument. The ocean is grey and the land is white. A data overlay, generated from SWOT’s measurements, shows up as a colorful stripe on the right side of the image. A color code at the bottom of the image shows that color in the data stripe corresponds to sea surface height anomaly in meters, where dark blue is less than or equal to 0.25, white is 0, and dark red is greater than or equal to 0.25.

ALT Sea level data generated from 7 active nadir altimeter missions shows up as a colorful stripe that is fuzzier than the first image. A color code at the bottom of the image shows that color in the data stripe corresponds to sea surface height anomaly in meters, where dark blue is less than or equal to 0.25, white is 0, and dark red is greater than or equal to 0.25.