Spaceborne Interferometric Synthetic Aperture Radar (InSAR) is a well established technique useful in many land applications, such as tectonic movements, landslide monitoring and digital elevation model extraction. One of its major limitation is the atmospheric effect, and in particular the high water vapour spatial and temporal variability which introduces an unknown delay in the signal propagation. This paper describes the approach and some results achieved in the framework of an ESA funded project devoted to the mapping of the water vapour with the aim to mitigate its effect in InSAR applications. Ground based (microwave radiometers, radiosoundings, GPS) and spaceborne observations (AMSR-E, MERIS, MODIS) of columnar water vapour were compared with Numerical Weather Prediction model runs in Central Italy during a 15-day experiment. The acquired experimental data and their comparison give a first idea of what can be done to gather valuable information on water vapour, which play a fundamental role in weather prediction and radio propagation studies. © 2011 EurAAP.
Synergic use of EO, NWP and ground based data for the characterisation of water vapour field / Pierdicca, Nazzareno; F., Rocca; B., Rommen; Patrizia, Basili; S., Bonafoni; G., Carlesimo; N., Cimini; Piero, Ciotti; R., Ferretti; Marzano, FRANK SILVIO; V., Mattioli; M., Montopoli; R., Notarpietro; D., Perissin; E., Pichelli; G., Venuti. - (2011), pp. 3247-3250. (Intervento presentato al convegno 5th European Conference on Antennas and Propagation, EUCAP 2011 tenutosi a Rome nel 10 April 2011 through 15 April 2011).
Synergic use of EO, NWP and ground based data for the characterisation of water vapour field
PIERDICCA, Nazzareno;MARZANO, FRANK SILVIO;
2011
Abstract
Spaceborne Interferometric Synthetic Aperture Radar (InSAR) is a well established technique useful in many land applications, such as tectonic movements, landslide monitoring and digital elevation model extraction. One of its major limitation is the atmospheric effect, and in particular the high water vapour spatial and temporal variability which introduces an unknown delay in the signal propagation. This paper describes the approach and some results achieved in the framework of an ESA funded project devoted to the mapping of the water vapour with the aim to mitigate its effect in InSAR applications. Ground based (microwave radiometers, radiosoundings, GPS) and spaceborne observations (AMSR-E, MERIS, MODIS) of columnar water vapour were compared with Numerical Weather Prediction model runs in Central Italy during a 15-day experiment. The acquired experimental data and their comparison give a first idea of what can be done to gather valuable information on water vapour, which play a fundamental role in weather prediction and radio propagation studies. © 2011 EurAAP.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
