Cyril Grima Dataverse

Cyril’s work aims to characterize the environments of planetary bodies in the solar system and to understand their fundamental evolution processes, especially with space-born radar instruments. His research interests are focused on planetary analogs (Antarctica/Arctic), surface properties inversion, planetary landing site selection, and radar wave propagation in planetary ionospheres.

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1 to 10 of 10 Results

MARSIS Surface Reflectivity Jun 3, 2025 Grima, Cyril, 2024, "MARSIS Surface Reflectivity", https://doi.org/10.18738/T8/UOPDFF, Texas Data Repository, V2, UNF:6:tAGPpwba4sMg6HxxLhYvHA== [fileUNF] Surface reflectivity of the Mars Advanced Radar for Subsurface and Ionosphere Sounding (MARSIS), supported by NASA grant #80NSSC23K1161. We use data from the Optimized MARSIS Radargram dataset (https://pds-geosciences.wustl.edu/mex/urn-nasa-pds-mex_marsis_optim). Our analysis is...
MARSIS_surface_reflectivity_1.8MHz.tab Jun 3, 2025 - MARSIS Surface Reflectivity Tabular Data - 81.2 MB - 20 Variables, 449117 Observations - UNF:6:E6k5p8EE6gRoQuop2AvqJQ== Surface reflectivity of Mars from MARSIS at 1.8 MHz
MARSIS_surface_reflectivity_3MHz.tab Jun 3, 2025 - MARSIS Surface Reflectivity Tabular Data - 887.6 MB - 20 Variables, 4868537 Observations - UNF:6:99036GzIqfApwRV+aPBZSA== Surface reflectivity of Mars from MARSIS at 3 MHz
MARSIS_surface_reflectivity_4MHz.tab Jun 3, 2025 - MARSIS Surface Reflectivity Tabular Data - 1.5 GB - 1 Variables, 8381373 Observations - UNF:6:NJkwKyuTy+YYa2QPHbtOxQ== Surface reflectivity of Mars from MARSIS at 4 MHz.
MARSIS_surface_reflectivity_5MHz.tab Jun 3, 2025 - MARSIS Surface Reflectivity Tabular Data - 702.9 MB - 20 Variables, 3912477 Observations - UNF:6:Q37iuHj4WEfTDtT57gc0Yw== Surface reflectivity of Mars from MARSIS at 5 MHz.
README.txt Jan 9, 2024 - MARSIS Surface Reflectivity Plain Text - 1.0 KB - MD5: e21fc9356c847d6b837c1545f4d5b84d Field definitions
Replication Data for: Investigating the Martian Surface at Decametric Scale: Population, Distribution and Dimension of Hetereogeneities from Radar Statistics Aug 25, 2022 Grima, Cyril, 2022, "Replication Data for: Investigating the Martian Surface at Decametric Scale: Population, Distribution and Dimension of Hetereogeneities from Radar Statistics", https://doi.org/10.18738/T8/GR884G, Texas Data Repository, V1, UNF:6:ldPbCV//UPFfhB+ucCHCAQ== [fileUNF] Building on one decade of theory and methodology maturation, we investigate the coherent and incoherent components of the response of the Martian surface to nadir-looking orbital radar. We apply a reflectometry technique known as radar statistical reconnaissance to Mars Reconnais...
SHARAD_elysium_surface.tab Aug 25, 2022 - Replication Data for: Investigating the Martian Surface at Decametric Scale: Population, Distribution and Dimension of Hetereogeneities from Radar Statistics Tabular Data - 15.3 MB - 13 Variables, 67378 Observations - UNF:6:ldPbCV//UPFfhB+ucCHCAQ== longitude: Mars East longitude [degree]; latitude: Mars latitude [degree]; a: HK amplitude; s: HK scale parameter; mu: HK clustering parameter; chisqr: Chi-square of the HK fit; correlation_coefficient: Correlation coefficient of the HK fit; pc: Relative coherent power [dB...
Replication Data for: The Basal Detectability of an Ice-covered Mars by MARSIS Jan 25, 2022 Grima, Cyril, 2021, "Replication Data for: The Basal Detectability of an Ice-covered Mars by MARSIS", https://doi.org/10.18738/T8/HMNDH1, Texas Data Repository, V2, UNF:6:Q6uA5EM1VDG/qPbeoHSNXg== [fileUNF] The detection of anomalously strong relative basal reflectivity beneath the Martian South Polar Layered Deposits (SPLD) from the Mars Advanced Radar for Subsurface and Ionosphere Sounding (MARSIS) has led to hypotheses suggesting the presence of basal materials such as liquid wat...
MARSIS_R13_4MHz.tab Jan 25, 2022 - Replication Data for: The Basal Detectability of an Ice-covered Mars by MARSIS Tabular Data - 5.4 MB - 3 Variables, 173450 Observations - UNF:6:Q6uA5EM1VDG/qPbeoHSNXg== Surface reflectivity normalized to the SPLD surface reflection at 192-194E and 80-82S (the so-called R_{13}/R_{12} in the main paper). Data are binned into a 0.5deg x 0.5deg grid. The data format is a comma-separated-value file with three columns. The first and second columns are...

MARSIS Surface Reflectivity

Jun 3, 2025

Grima, Cyril, 2024, "MARSIS Surface Reflectivity", https://doi.org/10.18738/T8/UOPDFF, Texas Data Repository, V2, UNF:6:tAGPpwba4sMg6HxxLhYvHA== [fileUNF]

Surface reflectivity of the Mars Advanced Radar for Subsurface and Ionosphere Sounding (MARSIS), supported by NASA grant #80NSSC23K1161. We use data from the Optimized MARSIS Radargram dataset (https://pds-geosciences.wustl.edu/mex/urn-nasa-pds-mex_marsis_optim). Our analysis is...

MARSIS_surface_reflectivity_1.8MHz.tab

Jun 3, 2025 - MARSIS Surface Reflectivity

Tabular Data - 81.2 MB - 20 Variables, 449117 Observations -

Surface reflectivity of Mars from MARSIS at 1.8 MHz

MARSIS_surface_reflectivity_3MHz.tab

Jun 3, 2025 - MARSIS Surface Reflectivity

Tabular Data - 887.6 MB - 20 Variables, 4868537 Observations -

Surface reflectivity of Mars from MARSIS at 3 MHz

MARSIS_surface_reflectivity_4MHz.tab

Jun 3, 2025 - MARSIS Surface Reflectivity

Tabular Data - 1.5 GB - 1 Variables, 8381373 Observations -

Surface reflectivity of Mars from MARSIS at 4 MHz.

MARSIS_surface_reflectivity_5MHz.tab

Jun 3, 2025 - MARSIS Surface Reflectivity

Tabular Data - 702.9 MB - 20 Variables, 3912477 Observations -

Surface reflectivity of Mars from MARSIS at 5 MHz.

README.txt

Jan 9, 2024 - MARSIS Surface Reflectivity

Plain Text - 1.0 KB -

Field definitions

Replication Data for: Investigating the Martian Surface at Decametric Scale: Population, Distribution and Dimension of Hetereogeneities from Radar Statistics

Aug 25, 2022

Grima, Cyril, 2022, "Replication Data for: Investigating the Martian Surface at Decametric Scale: Population, Distribution and Dimension of Hetereogeneities from Radar Statistics", https://doi.org/10.18738/T8/GR884G, Texas Data Repository, V1, UNF:6:ldPbCV//UPFfhB+ucCHCAQ== [fileUNF]

Building on one decade of theory and methodology maturation, we investigate the coherent and incoherent components of the response of the Martian surface to nadir-looking orbital radar. We apply a reflectometry technique known as radar statistical reconnaissance to Mars Reconnais...

SHARAD_elysium_surface.tab

Aug 25, 2022 - Replication Data for: Investigating the Martian Surface at Decametric Scale: Population, Distribution and Dimension of Hetereogeneities from Radar Statistics

Tabular Data - 15.3 MB - 13 Variables, 67378 Observations -

longitude: Mars East longitude [degree]; latitude: Mars latitude [degree]; a: HK amplitude; s: HK scale parameter; mu: HK clustering parameter; chisqr: Chi-square of the HK fit; correlation_coefficient: Correlation coefficient of the HK fit; pc: Relative coherent power [dB...

Replication Data for: The Basal Detectability of an Ice-covered Mars by MARSIS

Jan 25, 2022

Grima, Cyril, 2021, "Replication Data for: The Basal Detectability of an Ice-covered Mars by MARSIS", https://doi.org/10.18738/T8/HMNDH1, Texas Data Repository, V2, UNF:6:Q6uA5EM1VDG/qPbeoHSNXg== [fileUNF]

The detection of anomalously strong relative basal reflectivity beneath the Martian South Polar Layered Deposits (SPLD) from the Mars Advanced Radar for Subsurface and Ionosphere Sounding (MARSIS) has led to hypotheses suggesting the presence of basal materials such as liquid wat...

MARSIS_R13_4MHz.tab

Jan 25, 2022 - Replication Data for: The Basal Detectability of an Ice-covered Mars by MARSIS

Tabular Data - 5.4 MB - 3 Variables, 173450 Observations -

Surface reflectivity normalized to the SPLD surface reflection at 192-194E and 80-82S (the so-called R_{13}/R_{12} in the main paper). Data are binned into a 0.5deg x 0.5deg grid. The data format is a comma-separated-value file with three columns. The first and second columns are...

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