https://www.jpl.nasa.gov/spaceimages/details.php?id=PIA13243
The amount of water stored in the Amazon basin varies from month to month, and can be monitored from space by looking at how it alters Earth’s gravity field. This series of images was produced using data from Gravity Recovery and Climate Experiment (GRACE) in 2008 and shows month-to-month water mass changes (relative to a three-year average) over the Amazon and neighboring regions. Oranges, reds and pinks show where mass is lower than average; greens, blues and purples show where mass is higher than average. The Amazon has distinct rainy and dry seasons, and the seasons show up clearly through the monthly maps
