Spaceborne altimetry and scatterometry backscattering signatures at C- and Ku-bands over West Africa

摘要

This study presents a comprehensive comparison of radar signatures acquired over West Africa (between latitudes 0 degrees-25 degrees N and longitudes 5 degrees W-25 degrees E) at both C- and Ku-bands using nadir-looking altimeters (35-day orbital period ENVISAT RA-2 over 2003-2010 and 10-day orbital period Jason-2 over mid-2008-2011) and side-looking scatterometers (QuikSCAT over 2003-2009 and ASCAT over mid-2008-2011) that covers the major biodimatic zones, soil and vegetation types encountered in this region.