Pascal Allemand
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View article: Geological Complexity of Glinka Crater (Mercury): A Hybrid Mapping Approach Based on Spectral and Morphological Analysis
Geological Complexity of Glinka Crater (Mercury): A Hybrid Mapping Approach Based on Spectral and Morphological Analysis Open
INTRODUCTIONMercury's surface has undergone intense modification by impact cratering and space weathering, which makes delineating distinct geological units particularly complex. In this study, we focus on Glinka crater (Fig. 1), situated …
View article: Hectometric-scale mounds on Mars: insights from Bernard Crater and surrounding terrains in Terra Sirenum, Mars
Hectometric-scale mounds on Mars: insights from Bernard Crater and surrounding terrains in Terra Sirenum, Mars Open
Hectometric-scale mound-like features in Terra Sirenum, Mars, have been hypothesized to result from either sedimentary volcanism or small-scale igneous volcanic activity. Discriminating between these processes is essential for understandin…
View article: Hyperspectral Mineral Mapping for Sustainable Lunar Exploration: Targeting ISRU Resources in Key Lunar Regions
Hyperspectral Mineral Mapping for Sustainable Lunar Exploration: Targeting ISRU Resources in Key Lunar Regions Open
Introduction and ObjectivesFor ISRU and sustainable lunar habitats, characterizing the mineralogical heterogeneity of candidate landing sites is critical for identifying regions of high resource potential. This study investigates four geol…
View article: ArchiSpace: Space Architecture Design and Prototyping in Planetary Analogue Environments
ArchiSpace: Space Architecture Design and Prototyping in Planetary Analogue Environments Open
IntroductionThis decade marks our goal to return to the Moon—this time, to stay.It is therefore crucial to develop reliable and safe settlements that adequately protect astronaut’s physical and mental well-being from all possible threats t…
View article: FlyRadar – targets for future drone based GPR survey on mars
FlyRadar – targets for future drone based GPR survey on mars Open
View article: Investigation of the Regolith Thickness and Boulder Density at the Four Candidate Landing Sites of the Emirates Lunar Mission Rashid-1 Rover
Investigation of the Regolith Thickness and Boulder Density at the Four Candidate Landing Sites of the Emirates Lunar Mission Rashid-1 Rover Open
View article: Drone based GPR survey on Mars – targets and expectations from a “FlyRadar type” mission
Drone based GPR survey on Mars – targets and expectations from a “FlyRadar type” mission Open
The possibility and feasibility of future drone-based shallow subsurface GPR radar survey for Mars have been examined. Various observations indicate shallower features are present on Mars, could be surveyed ideally from a low altitude flyi…
View article: Testing the FlyRadar instrument in glacial environment on Earth for future ice/water investigations on Mars
Testing the FlyRadar instrument in glacial environment on Earth for future ice/water investigations on Mars Open
IntroductionThe goal of the FlyRadar project (a 2020 Horizon 2020 MSCA-RISE project funded by the European Commission) was to design and develop a multimodal Ground Penetrating Radar (GPR) and Synthetic Aperture Radar (SAR), multi-frequenc…
View article: Tectonic and hydrothermal activity at the Yellow Lake fissure in response to the 2004 Dallol dyke intrusion event in Afar
Tectonic and hydrothermal activity at the Yellow Lake fissure in response to the 2004 Dallol dyke intrusion event in Afar Open
The Danakil depression in Ethiopia, at the southern end of the Red Sea, has been the place of volcanic crises in 2004–10, with emplacement of at least 15 dykes. One of them, non-emergent, occurred in dry lake Asale next to Black Mountain a…
View article: location of landslides and mudflows produced during the storm Helena on October 26, 1963 on the island of Basse Terre (Guadeloupe)
location of landslides and mudflows produced during the storm Helena on October 26, 1963 on the island of Basse Terre (Guadeloupe) Open
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View article: Phenomenological model of suspended sediment transport in a small catchment
Phenomenological model of suspended sediment transport in a small catchment Open
We develop a phenomenological model of suspended sediment transport on the basis of data acquired in the Capesterre river, which drains a small tropical catchment in Guadeloupe. The model correctly represents the concentration of suspended…
View article: Characterization of Shalbatana Vallis landslides
Characterization of Shalbatana Vallis landslides Open
Shalbatana Vallis is a valley located in the Oxia Palus quadrangle, characterized by a simple system and a homogeneous coverage. Shalbatana vallis flows into the Chryse Planitia basin, alongside Ares Vallis, Kasei Valles, Simud Valles and …
View article: Methane on Mars: Correlation of geomorphological features with current methane emissions
Methane on Mars: Correlation of geomorphological features with current methane emissions Open
This research deals with the detailed study of some global-scale geomorphological structures on Mars to identify possible current or fossil methane emission points. For years, attempts have been made to understand the mechanism that led to…
View article: D1.5: DESCRIPTION AND SIMULATION OF GPR INVESTIGATION IN A MARTIAN ENVIRONMENT
D1.5: DESCRIPTION AND SIMULATION OF GPR INVESTIGATION IN A MARTIAN ENVIRONMENT Open
This deliverable presents models of the response of the FlyRadar instrument to different lithological and geometric configurations of the Martian subsurface. The GprMax software was used to model the response of a lava tube, ice lenses, a …
View article: Entrainment and deposition of boulders in a gravel bed river
Entrainment and deposition of boulders in a gravel bed river Open
Bedload transport, entrainment of coarse sediment by a river, is inherently a stochastic and intermittent process whose monitoring remains challenging. Here, we propose a new method to characterize bedload transport in the field. Using an …
View article: New Detections of Feldspar‐Bearing Volcanic Rocks in the Walls of Valles Marineris, Mars
New Detections of Feldspar‐Bearing Volcanic Rocks in the Walls of Valles Marineris, Mars Open
Plagioclase‐bearing rocks were first detected in the vicinity of large impact basins on Mars using visible/near‐infrared (VNIR) data. The geologic context is consistent with excavated plutons or ancient crustal outcrops. Our analyses revea…
View article: Comment on esurf-2022-50
Comment on esurf-2022-50 Open
Abstract. We develop a phenomenological model of suspended-sediment transport on the basis of data acquired in the Capesterre river, which drains a small tropical catchment in Guadeloupe. The model correctly represents the…
View article: Mineral Identification and Abundance Mapping through the hyperspectral PRISMA images on the Dallol Planetary Analog
Mineral Identification and Abundance Mapping through the hyperspectral PRISMA images on the Dallol Planetary Analog Open
<p><strong>Introduction</strong></p> <p>Studying planetary field analog environments is a key point in order to define the physical and chemical parameters that favor life on Earth and other planets. Terrestri…
View article: Phenomenological model of suspended sediment transport in a small tropical catchment
Phenomenological model of suspended sediment transport in a small tropical catchment Open
We develop a phenomenological model of suspended-sediment transport on the basis of data acquired in the Capesterre river, which drains a small tropical catchment in Guadeloupe. The model correctly represents the transport of suspended sed…
View article: Reply on RC1
Reply on RC1 Open
Abstract. Rivers transports coarse sediment (gravel, cobbles, or boulder) as bedload. During a flood, when the discharge is high enough, the sediment grains move by rolling and bouncing on the river bed. Measuring bedload …
View article: Reply on RC2
Reply on RC2 Open
Abstract. Rivers transports coarse sediment (gravel, cobbles, or boulder) as bedload. During a flood, when the discharge is high enough, the sediment grains move by rolling and bouncing on the river bed. Measuring bedload …
View article: Hydro cyclone flow as a physical process of ejection of material in the plumes of Enceladus and influence in the atmosphere.
Hydro cyclone flow as a physical process of ejection of material in the plumes of Enceladus and influence in the atmosphere. Open
<p>On Enceladus, the first sign of water vapor plumes was detected by the UVIS instrument of Cassini during a stellar occultation in July 2005. The dynamics of these water plumes, probably related to the ocean activity, are an import…
View article: Possible geomorphic indicators of methane emission in three Martian impact craters
Possible geomorphic indicators of methane emission in three Martian impact craters Open
<p>Methane has been detected these last years in the Martian atmosphere both from orbit (TGO-ExoMars mission - still active) and from ground (Curiosity rover – Mars Science laboratory mission). The sources of methane remain…
View article: First Evaluation of PRISMA Scene for geological mapping: the Dallol hydrothermal area in the salt flat of Danakil Desert, NE Ethiopia
First Evaluation of PRISMA Scene for geological mapping: the Dallol hydrothermal area in the salt flat of Danakil Desert, NE Ethiopia Open
<p>Hyperspectral sensors offer the opportunity of analysing the chemical and physical composition of the remote sensed scene thanks to their ability of measuring the spectrum of the observed pixels in a large number of contiguous and…
View article: First Evaluation of PRISMA Scene for geological mapping: the Dallol hydrothermal area in the salt flat of Danakil Desert, NE Ethiopia
First Evaluation of PRISMA Scene for geological mapping: the Dallol hydrothermal area in the salt flat of Danakil Desert, NE Ethiopia Open
Hyperspectral sensors offer the opportunity of analysing the chemical and physical composition of the remote sensed scene thanks to their ability of measuring the spectrum of the observed pixels in a large number of contiguous and narrow s…
View article: FlyRadar: A Multimode/Multiband Radar on Board of a UAV to Explore Mars and the Earth
FlyRadar: A Multimode/Multiband Radar on Board of a UAV to Explore Mars and the Earth Open
The aim of the FlyRadar project (H2020-MSCA-RISE-2020 project of European Commission) is to develop a multimode (GPR and SAR) multi-frequency radar installed on board a UAV dimensioned for Martian exploration and tested on Earth. A GPR is …
View article: Comment on esurf-2021-77
Comment on esurf-2021-77 Open
Rivers transports coarse sediment (gravel, cobbles, or boulder) as bedload. During a flood, when the discharge is high enough, the sediment grains move by rolling and bouncing on the river bed. Measuring bedload transport in the field is n…
View article: Entrainment and deposition of boulders in a gravel bed river
Entrainment and deposition of boulders in a gravel bed river Open
Rivers transports coarse sediment (gravel, cobbles, or boulder) as bedload. During a flood, when the discharge is high enough, the sediment grains move by rolling and bouncing on the river bed. Measuring bedload transport in the field is n…
View article: Entrainment and deposition of boulders in a gravel bed river
Entrainment and deposition of boulders in a gravel bed river Open
Images and datasets described in the paper "Entrainment and deposition of boulders in a gravel bed river" submitted to Esurf in October 2021, By Allemand et al.
View article: Shallow-water hydrothermalism at Milos (Greece): Nature, distribution, heat fluxes and impact on ecosystems
Shallow-water hydrothermalism at Milos (Greece): Nature, distribution, heat fluxes and impact on ecosystems Open