ENVISAT Interferometry for mapping and monitoring:preliminary results
Andrea Monti Guarnieri(1) and Y.L Desnos(2)
Politecnico di Milano,
Piazza Leonardo da Vinci 32,
(2) ESA, Via Galileo Galilei, Frascati 00044, Italy
In the paper we provide an overview of the techniques for getting
repeat pass interferometric surveys by exploiting the very different
ASAR modes: Image Mode, Alternating Polarization and Wide-Swath Mode.
In particular, we summarize the conclusions of the ESA contract N.
14143/00/NL/GD “ENVISAT ASAR SCANSAR Interferometric Products”:
- we briefly discuss the architecture of the modular processor,
able to accept any of the cited modes, together with a DEM (if
available, if not a global one like GTOPO30 or ENVI is assumed by
- we detail the features of the new phase preserving WSM product,
that ESA will soon add to its Level-1 products
- we provide hints and refinement achieved after completion the
of the validation phase.
Together with this technical description, we provide some examples of
the final products (at least one in all the possible modes), achieved
in the first year of ENVI SAT life, and we highlight the sensor
applications in the fields of mapping and differential interferometry.
Keywords: ESA European
Space Agency - Agence spatiale europeenne,
observation de la terre, earth observation,
satellite remote sensing,
teledetection, geophysique, altimetrie, radar,
chimique atmospherique, geophysics, altimetry, radar,