The modeling of caves is constantly evolving and the classic modeling tools are giving way to new... more The modeling of caves is constantly evolving and the classic modeling tools are giving way to new techniques that are more precise and more practical, indeed scientists are increasingly using 3D modeling to improve the representations of caves, in this study we have used lasergrammetry and photogrammetry which occupy an increasing place in the 3D representation of caves. Their simplicity favors their use for recording and modeling the parietal morphology of caves and the detailed representation of the complexity of Endokarst. As part of the geomorphological study of the Kef El Baroud Cave which is located in the province of Benslimane in Morocco, two modeling methods were carried out, it is a digital survey by lasergrammetry and by photogrammetry of the cave. and its parietal morphologies. The study was completed by a topographical survey with a DistoX rangefinder. The geophysical contribution by electrical tomography was also carried out. The 3D terrestrial laser scanning technique...
To model the geothermal flow in northern Morocco, we apply a machine learning (ML) approach by an... more To model the geothermal flow in northern Morocco, we apply a machine learning (ML) approach by analyzing the geological and geophysical data at boreholes, where direct heat flow data is available. The data includes geothermal flow, geothermal gradient, Bouguer gravity, aero-magnetic field, tectonic fracture density and the proximity level to the major faults, thermal spring data (location, temperature, density), geochronological age of formations, Earthquake data (density, magnitude, location), and the proximity level to the recent volcanism in Morocco. These data represent factors that generally control the spatial variation of geothermal flow. For this purpose, we used four ML techniques: Multi-Layer Perceptron, Support Vector Regression, K-Nearest Neighbors, and Decision trees, and examined the impact of parameter settings for each ML technique on the performance results. In specifically, we examine two parameter tuning methods: Grid Search (GS) and the Python Tool’s default parameters. To determine the significance of the performance differences and rank ML techniques according to their performances, the Skott-Knott test, and the Borda Count voting system were investigated. We identified the optimized MLP by means of GS as the best ML technique. The cartographic representation of predicted geothermal flow values, by the optimized MLP (GS + MLP) model over the northern Morocco, shows areas of high geothermal flow values. These areas often correspond to magmatic intrusions at depth connected to the regional geodynamic context. The lowest values of geothermal flow are less than 40 mW m-2 and are mainly predicted in the Anti-Atlas chain of Precambrian age and in which is part of the West African Craton. This method is a new approach that may help to identify areas with high geothermal potential based on geological and geophysical data.
HAL (Le Centre pour la Communication Scientifique Directe), Dec 1, 2019
HAL is a multidisciplinary open access archive for the deposit and dissemination of scientific re... more HAL is a multidisciplinary open access archive for the deposit and dissemination of scientific research documents, whether they are published or not. The documents may come from teaching and research institutions in France or abroad, or from public or private research centers. L'archive ouverte pluridisciplinaire HAL, est destinée au dépôt et à la diffusion de documents scientifiques de niveau recherche, publiés ou non, émanant des établissements d'enseignement et de recherche français ou étrangers, des laboratoires publics ou privés.
The Early–Mid Holocene transition is a period of profound changes in climatic mechanisms and hydr... more The Early–Mid Holocene transition is a period of profound changes in climatic mechanisms and hydrological features in Europe and North Africa. The melting of the Laurentide ice sheet led to an oceanic and atmospheric reorganisation in the North Atlantic, while the Mediterranean underwent a major hydrological shift. The impacts on Mediterranean rivers remain unclear, as there are few records documenting responses to the 8.2 ka event (the main Holocene climatic degradation). We present a fluvial record from Eastern Morocco documenting detailed hydrological variations from 8200 to 7500 cal. BP and their climatic forcing. A major hydrogeomorphic evolution of the Charef River occurred at that time, marked by two major incision stages close in time, under hyper-arid conditions at 8200 and ca. 7500 cal. BP. The impacts of these phenomena on the alluvial plains and associated archaeological records during Neolithisation, a major process in human history, currently remain unidentified. This ...
From the middle of the 19th century, speleological topography became a discipline, if not an art,... more From the middle of the 19th century, speleological topography became a discipline, if not an art, which supported the work of both explorers and scientists. Underground explorations in Morocco remain an area to be discovered and developed. The Moroccan 99,890 km² limestone surface, represents 14% of the total surface which potentially contains a large number of caves, only 3 of them are developed. This under-exploitation is explained by the lack of evaluation of the richness of Morocco’s karst and cave heritage, the topographic maps of Moroccan Caves are poorly carried out or absent, the last inventory of Moroccan Caves dates from 1981.The objective of this study is to represent the AZIZA Cave virtually, appreciate its volume, and optimize the topography of the latter based on 3D technologies. Two methods were used, the topography of the cave by a DISTO-X, and the results of the 3D projection of the cave were carried out on the software VISUAL TOPO. Secondly, we carried out 3D model...
Travaux et Documents des Laboratoires de Géologie de Lyon, 2008
Amiot Romain, Buffetaut Éric, Lecuyer Christophe, Boudad Larbi, Hutt Steven, Mo Jin You, Suteetho... more Amiot Romain, Buffetaut Éric, Lecuyer Christophe, Boudad Larbi, Hutt Steven, Mo Jin You, Suteethorn Varavudh, Sweetman Steven, Tong Haiyan, Wang Xu, Fusong Zhang. Were some dinosaurs aquatic?. In: Documents des Laboratoires de Géologie, Lyon, n°164, 2008. Mid-Mesozoic life and environments. Cognac (France), June 24th-28th 2008. pp. 7-8
Iranian Journal of Science and Technology, Transactions of Civil Engineering, 2021
Natural disasters like floods are happening worldwide. Due to their negative impact on different ... more Natural disasters like floods are happening worldwide. Due to their negative impact on different social, economic and environmental aspects need to monitor and map these phenomena have increased. In fact, to access the zones affected by the flood, we use open source remote sensing (RS) images acquired by optical and radar sensors. Furthermore, we present a method using Sentinel-1 images; we suggest applying Ground Range Detected (GRD) images. For this purpose, pre-processed built and provided by the European Space Agency (ESA), preserved by free software Sentinel Application Platform (SNAP) for data extraction around appropriate demand. Moreover, the principal objective of this article is to assess the capability of Sentinel-1 Synthetic Aperture Radar (SAR) images in order to visualize flood areas in the Inaouene watershed located in north-eastern of Morocco. The origin of this natural hazard is the combination of natural and anthropogenic factors that makes the watershed vulnerable with a sub-annual frequency. The results of this work help decision-makers and managers in the field of natural risk management and land-use planning to implement a strategy and action plan for the protection of the populations and the environment against the negative impact of floods.
The descriptive study of dune facies plain Tafilalet enlightened us on the likely sand sheets, th... more The descriptive study of dune facies plain Tafilalet enlightened us on the likely sand sheets, the axis of advance of the sands, and any remobilisassions. Only a more detailed analysis will shed light on the behavior of particles during transport, according to their size or nature of their origin, their specific areas of migration, deposition and remobilization. This characterization of the sand through his elementary particle, will be by laboratory analyzed by granulometric by sieving, morphoscopic by observing the insoluble fraction and mineral by separating the soluble fraction and heavy mineral Identification
The modeling of caves is constantly evolving and the classic modeling tools are giving way to new... more The modeling of caves is constantly evolving and the classic modeling tools are giving way to new techniques that are more precise and more practical, indeed scientists are increasingly using 3D modeling to improve the representations of caves, in this study we have used lasergrammetry and photogrammetry which occupy an increasing place in the 3D representation of caves. Their simplicity favors their use for recording and modeling the parietal morphology of caves and the detailed representation of the complexity of Endokarst. As part of the geomorphological study of the Kef El Baroud Cave which is located in the province of Benslimane in Morocco, two modeling methods were carried out, it is a digital survey by lasergrammetry and by photogrammetry of the cave. and its parietal morphologies. The study was completed by a topographical survey with a DistoX rangefinder. The geophysical contribution by electrical tomography was also carried out. The 3D terrestrial laser scanning technique...
To model the geothermal flow in northern Morocco, we apply a machine learning (ML) approach by an... more To model the geothermal flow in northern Morocco, we apply a machine learning (ML) approach by analyzing the geological and geophysical data at boreholes, where direct heat flow data is available. The data includes geothermal flow, geothermal gradient, Bouguer gravity, aero-magnetic field, tectonic fracture density and the proximity level to the major faults, thermal spring data (location, temperature, density), geochronological age of formations, Earthquake data (density, magnitude, location), and the proximity level to the recent volcanism in Morocco. These data represent factors that generally control the spatial variation of geothermal flow. For this purpose, we used four ML techniques: Multi-Layer Perceptron, Support Vector Regression, K-Nearest Neighbors, and Decision trees, and examined the impact of parameter settings for each ML technique on the performance results. In specifically, we examine two parameter tuning methods: Grid Search (GS) and the Python Tool’s default parameters. To determine the significance of the performance differences and rank ML techniques according to their performances, the Skott-Knott test, and the Borda Count voting system were investigated. We identified the optimized MLP by means of GS as the best ML technique. The cartographic representation of predicted geothermal flow values, by the optimized MLP (GS + MLP) model over the northern Morocco, shows areas of high geothermal flow values. These areas often correspond to magmatic intrusions at depth connected to the regional geodynamic context. The lowest values of geothermal flow are less than 40 mW m-2 and are mainly predicted in the Anti-Atlas chain of Precambrian age and in which is part of the West African Craton. This method is a new approach that may help to identify areas with high geothermal potential based on geological and geophysical data.
HAL (Le Centre pour la Communication Scientifique Directe), Dec 1, 2019
HAL is a multidisciplinary open access archive for the deposit and dissemination of scientific re... more HAL is a multidisciplinary open access archive for the deposit and dissemination of scientific research documents, whether they are published or not. The documents may come from teaching and research institutions in France or abroad, or from public or private research centers. L'archive ouverte pluridisciplinaire HAL, est destinée au dépôt et à la diffusion de documents scientifiques de niveau recherche, publiés ou non, émanant des établissements d'enseignement et de recherche français ou étrangers, des laboratoires publics ou privés.
The Early–Mid Holocene transition is a period of profound changes in climatic mechanisms and hydr... more The Early–Mid Holocene transition is a period of profound changes in climatic mechanisms and hydrological features in Europe and North Africa. The melting of the Laurentide ice sheet led to an oceanic and atmospheric reorganisation in the North Atlantic, while the Mediterranean underwent a major hydrological shift. The impacts on Mediterranean rivers remain unclear, as there are few records documenting responses to the 8.2 ka event (the main Holocene climatic degradation). We present a fluvial record from Eastern Morocco documenting detailed hydrological variations from 8200 to 7500 cal. BP and their climatic forcing. A major hydrogeomorphic evolution of the Charef River occurred at that time, marked by two major incision stages close in time, under hyper-arid conditions at 8200 and ca. 7500 cal. BP. The impacts of these phenomena on the alluvial plains and associated archaeological records during Neolithisation, a major process in human history, currently remain unidentified. This ...
From the middle of the 19th century, speleological topography became a discipline, if not an art,... more From the middle of the 19th century, speleological topography became a discipline, if not an art, which supported the work of both explorers and scientists. Underground explorations in Morocco remain an area to be discovered and developed. The Moroccan 99,890 km² limestone surface, represents 14% of the total surface which potentially contains a large number of caves, only 3 of them are developed. This under-exploitation is explained by the lack of evaluation of the richness of Morocco’s karst and cave heritage, the topographic maps of Moroccan Caves are poorly carried out or absent, the last inventory of Moroccan Caves dates from 1981.The objective of this study is to represent the AZIZA Cave virtually, appreciate its volume, and optimize the topography of the latter based on 3D technologies. Two methods were used, the topography of the cave by a DISTO-X, and the results of the 3D projection of the cave were carried out on the software VISUAL TOPO. Secondly, we carried out 3D model...
Travaux et Documents des Laboratoires de Géologie de Lyon, 2008
Amiot Romain, Buffetaut Éric, Lecuyer Christophe, Boudad Larbi, Hutt Steven, Mo Jin You, Suteetho... more Amiot Romain, Buffetaut Éric, Lecuyer Christophe, Boudad Larbi, Hutt Steven, Mo Jin You, Suteethorn Varavudh, Sweetman Steven, Tong Haiyan, Wang Xu, Fusong Zhang. Were some dinosaurs aquatic?. In: Documents des Laboratoires de Géologie, Lyon, n°164, 2008. Mid-Mesozoic life and environments. Cognac (France), June 24th-28th 2008. pp. 7-8
Iranian Journal of Science and Technology, Transactions of Civil Engineering, 2021
Natural disasters like floods are happening worldwide. Due to their negative impact on different ... more Natural disasters like floods are happening worldwide. Due to their negative impact on different social, economic and environmental aspects need to monitor and map these phenomena have increased. In fact, to access the zones affected by the flood, we use open source remote sensing (RS) images acquired by optical and radar sensors. Furthermore, we present a method using Sentinel-1 images; we suggest applying Ground Range Detected (GRD) images. For this purpose, pre-processed built and provided by the European Space Agency (ESA), preserved by free software Sentinel Application Platform (SNAP) for data extraction around appropriate demand. Moreover, the principal objective of this article is to assess the capability of Sentinel-1 Synthetic Aperture Radar (SAR) images in order to visualize flood areas in the Inaouene watershed located in north-eastern of Morocco. The origin of this natural hazard is the combination of natural and anthropogenic factors that makes the watershed vulnerable with a sub-annual frequency. The results of this work help decision-makers and managers in the field of natural risk management and land-use planning to implement a strategy and action plan for the protection of the populations and the environment against the negative impact of floods.
The descriptive study of dune facies plain Tafilalet enlightened us on the likely sand sheets, th... more The descriptive study of dune facies plain Tafilalet enlightened us on the likely sand sheets, the axis of advance of the sands, and any remobilisassions. Only a more detailed analysis will shed light on the behavior of particles during transport, according to their size or nature of their origin, their specific areas of migration, deposition and remobilization. This characterization of the sand through his elementary particle, will be by laboratory analyzed by granulometric by sieving, morphoscopic by observing the insoluble fraction and mineral by separating the soluble fraction and heavy mineral Identification
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