One of the main scientific objectives of the next missions to Mars will be the search of evidences that could demonstrate present or past forms of life. In such a context, various of the landing instrumental packages proposed for future missions include drill systems able to perform the core boring and in situ analysis of ground. The search for traces of water in the subsoil, both in liquid and iced phases, represent one of the most important experimental tasks. Moreover the identification of different geofaces, can be useful to define the most suitable locations for drilling. This paper describes a Multi-sensor Soil Electromagnetic Sounding (MuSES) that using different concepts and techniques: i) performs the electromagnetic detection of suitable subsoil targets to guide the drilling operations; ii) provides measurements of the subsurface dielectric profile and detects the interfaces characterized by different electromagnetic parameters (i.e. conductivity, dielectric constant and permeability). MuSES consists of three subsystems: 1) Soil Dielectric Spectroscopy Probe (SDSP), capable to provide complex permittivity measurements of the shallow soil, down to some tens of centimeters. The probe is based on a quadrupole array of electrodes AC coupled with ground in the band 100 Hz – 1 MHz. 2) Time Domain Electro-Magnetic system (TDEM), which, through a bi-static configuration of loops, operating in diffusion regime of fields (low frequencies), probes the apparent resistivity profile of subsoil, down to several meters. 3) Ground Penetrating Radar (GPR), which provides the vertical profile of the dielectric/magnetic discontinuities of the ground (down to a few meters) through high frequency electromagnetic fields in propagation regime (in the band 500 MHz – 1 GHz). The authors describe the rationale of the integrated package of instruments, the complementary features of the three subsystems and illustrate the enhancement of the scientific return achieved with the relevant data fusion.
MuSES (Multi-sensor Soil Electromagnetic Sounding) / Vannaroni, G.; Filippini, R.; Pettinelli, E.; Storini, M.; DELLA MONICA, G.; DI MAIO, Rosa; Orosei, R.; Ottonello, C.; Tacconi, G.; Pagnan, S.; Galli, A.; Schettini, G.; Menghini, A.; DI LELLIS, A. M.; DEL VENTO, D.; Paolucci, F.; Cereti, A.. - (2002). (Intervento presentato al convegno ASI International Workshop “Exploring Mars Surface and its Earth Analogues tenutosi a Cannizzaro (Catania, Italy) nel 23-25 September 2002).
MuSES (Multi-sensor Soil Electromagnetic Sounding)
DI MAIO, ROSA;
2002
Abstract
One of the main scientific objectives of the next missions to Mars will be the search of evidences that could demonstrate present or past forms of life. In such a context, various of the landing instrumental packages proposed for future missions include drill systems able to perform the core boring and in situ analysis of ground. The search for traces of water in the subsoil, both in liquid and iced phases, represent one of the most important experimental tasks. Moreover the identification of different geofaces, can be useful to define the most suitable locations for drilling. This paper describes a Multi-sensor Soil Electromagnetic Sounding (MuSES) that using different concepts and techniques: i) performs the electromagnetic detection of suitable subsoil targets to guide the drilling operations; ii) provides measurements of the subsurface dielectric profile and detects the interfaces characterized by different electromagnetic parameters (i.e. conductivity, dielectric constant and permeability). MuSES consists of three subsystems: 1) Soil Dielectric Spectroscopy Probe (SDSP), capable to provide complex permittivity measurements of the shallow soil, down to some tens of centimeters. The probe is based on a quadrupole array of electrodes AC coupled with ground in the band 100 Hz – 1 MHz. 2) Time Domain Electro-Magnetic system (TDEM), which, through a bi-static configuration of loops, operating in diffusion regime of fields (low frequencies), probes the apparent resistivity profile of subsoil, down to several meters. 3) Ground Penetrating Radar (GPR), which provides the vertical profile of the dielectric/magnetic discontinuities of the ground (down to a few meters) through high frequency electromagnetic fields in propagation regime (in the band 500 MHz – 1 GHz). The authors describe the rationale of the integrated package of instruments, the complementary features of the three subsystems and illustrate the enhancement of the scientific return achieved with the relevant data fusion.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
