BIOMASS radar image – The 'Reentrâncias Maranhenses' region in the state of Maranhão, northern Brazil
BIOMASS radar image – The 'Reentrâncias Maranhenses' region in the state of Maranhão, northern Brazil
This region is an extensive mangrove ecosystem, recognised as a 'Ramsar site'. The bluish hues in the image indicate surface-dominated scattering, while the mangroves themselves appear green – as is typical for vegetation scattering.
Polarimetric HSI representation (hue, saturation, intensity): The colour (hue component) indicates the type of scattering mechanism. Blue colours represent surface-like scatterers (like bare ground), green tones represent dipole-like scatterers (such as vegetation or volumetric scatterers) and red colours indicate dihedral-like scatterers (such as interactions between ground and tree trunks in forests or between ground and building walls in urban areas). These images and results were produced as part of the ESA-funded 'ESA Biomass In-Orbit Commissioning' project. All radar images were processed by DLR.
Credit:
ESA