Contents

26 February 2021
Vol 371, Issue 6532

About The Cover

Cover image expansion

COVER Flooding damage in the Bahamas, from Hurricane Dorian in 2019, was remotely assessed by NASA's Jet Propulsion Laboratory and the Earth Observatory of Singapore using synthetic aperture radar (SAR) data from Europe's Sentinel-1 satellites. By comparing SAR images acquired before and after the hurricane, researchers can see shifts in ground surface related to flooding (yellow and red indicate increasingly substantial surface change). A surge in SAR data is enabling researchers to study changes like these at finer scales and frequencies. See page 876.
Image: ARIA, JPL-Caltech, Earth Observatory of Singapore, Nanyang Technological University, NASA Earth Applied Sciences Disasters Program. Contains modified Copernicus Sentinel data (2019)