Éric Hallot
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View article: Exploring the Phytochemical Diversity and Anti-Plasmodial Potential of Artemisia annua and Artemisia afra from Different Geographical Locations in Cameroon
Exploring the Phytochemical Diversity and Anti-Plasmodial Potential of Artemisia annua and Artemisia afra from Different Geographical Locations in Cameroon Open
In Cameroon, like in other African countries, infusions of Artemisia afra and Artemisia annua are widely used for the management of health-related problems, including malaria. The secondary metabolite contents of medicinal plants vary betw…
View article: WaRM: A Roof Material Spectral Library for Wallonia, Belgium
WaRM: A Roof Material Spectral Library for Wallonia, Belgium Open
The exploitation of urban-material spectral properties is of increasing importance for a broad range of applications, such as urban climate-change modeling and mitigation or specific/dangerous roof-material detection and inventory. A new s…
View article: Reducing uncertainty in extreme weather vegetation stress modeling using satellite-model approach at high resolution
Reducing uncertainty in extreme weather vegetation stress modeling using satellite-model approach at high resolution Open
Vegetation is a key driver for carbon uptake from the atmosphere to the land. Yet episodes of plant stress and mortality associated with drought and heat waves due to persistent lack of precipitation have been reported over the last decade…
View article: Walloon roof material (WaRM) spectral library
Walloon roof material (WaRM) spectral library Open
The Walloon Roof Material spectral library (WaRM) was created in the framework of the CASMATTELE project to reflect regional peculiarities of roof materials employed in Wallonia, Belgium. This library accounts for 26 roof material spectra …
View article: Walloon roof material (WaRM) spectral library
Walloon roof material (WaRM) spectral library Open
The Walloon Roof Material spectral library (WaRM) was created in the framework of the CASMATTELE project to reflect regional peculiarities of roof materials employed in Wallonia, Belgium. This library accounts for 26 roof material spectra …
View article: GREEN INFRASTRUCTURE PLANNING THROUGH EO AND GIS ANALYSIS: THE CANOPY PLAN OF LIÈGE, BELGIUM, TO MITIGATE ITS URBAN HEAT ISLAND
GREEN INFRASTRUCTURE PLANNING THROUGH EO AND GIS ANALYSIS: THE CANOPY PLAN OF LIÈGE, BELGIUM, TO MITIGATE ITS URBAN HEAT ISLAND Open
As a place to live, work and play, urban spaces are the nerve centers of human activity. The urban spaces, which are becoming increasingly extensive and dense, are particularly sensitive to the effects of climate change. Greening cities ha…
View article: UAV-Based Landfill Land Cover Mapping: Optimizing Data Acquisition and Open-Source Processing Protocols
UAV-Based Landfill Land Cover Mapping: Optimizing Data Acquisition and Open-Source Processing Protocols Open
Earth observation technologies offer non-intrusive solutions for monitoring complex and risky sites, such as landfills. In particular, unmanned aerial vehicles (UAVs) offer the ability to acquire data at very high spatial resolution, with …
View article: A New Earth Observation Service Based on Sentinel-1 and Sentinel-2 Time Series for the Monitoring of Redevelopment Sites in Wallonia, Belgium
A New Earth Observation Service Based on Sentinel-1 and Sentinel-2 Time Series for the Monitoring of Redevelopment Sites in Wallonia, Belgium Open
Urban planning is a challenge, especially when it comes to limiting land take. In former industrial regions such as Wallonia, the presence of a large number of brownfields, here called “redevelopment sites”, opens up new opportunities for …
View article: UAVs for Fine-Scale Open-Source Landfill Mapping
UAVs for Fine-Scale Open-Source Landfill Mapping Open
Landfill managers are subject to obligations which include the regular monitoring of the topographical and land cover (LC) evolution of the site. This research aims at developing a cost-effective non-intrusive methodology for mapping landf…
View article: Evaluating the Potentiality of Sentinel-2 for Change Detection Analysis Associated to LULUCF in Wallonia, Belgium
Evaluating the Potentiality of Sentinel-2 for Change Detection Analysis Associated to LULUCF in Wallonia, Belgium Open
Land Use/Cover changes are crucial for the use of sustainable resources and the delivery of ecosystem services. They play an important contribution in the climate change mitigation due to their ability to emit and remove greenhouse gas fro…
View article: First 1-M Resolution Land Cover Map Labeling the Overlap in the 3rd Dimension: The 2018 Map for Wallonia
First 1-M Resolution Land Cover Map Labeling the Overlap in the 3rd Dimension: The 2018 Map for Wallonia Open
Land cover maps contribute to a large diversity of geospatial applications, including but not limited to land management, hydrology, land use planning, climate modeling and biodiversity monitoring. In densely populated and highly fragmente…
View article: Quantifying Focused Groundwater Recharge Induced by Irrigation Surface Water Reservoirs in Crystalline Basement Areas for Complementary Irrigation
Quantifying Focused Groundwater Recharge Induced by Irrigation Surface Water Reservoirs in Crystalline Basement Areas for Complementary Irrigation Open
Through the practice of irrigation, surface water reservoirs (SWRs) contribute to the socio-economic development and food production activities of populations in Sub-Saharan Africa (SSA). However, they tend to dry up prematurely. One solut…
View article: Future evolution of the hydroclimatic conditions favouring floods in the south‐east of Belgium by 2100 using a regional climate model
Future evolution of the hydroclimatic conditions favouring floods in the south‐east of Belgium by 2100 using a regional climate model Open
In Belgium, most flood events occur in winter as a result of intense precipitation events but also through the abrupt melting of the snowpack that covers the Ardennes summits. These conditions favourable to floods exhibit a decreasing tren…
View article: Analysis of carbon sequestration sensitivity to recent changes in land use patterns over Belgium using a combination of models and remote sensing techniques
Analysis of carbon sequestration sensitivity to recent changes in land use patterns over Belgium using a combination of models and remote sensing techniques Open
<p>Changes in land use/land cover (LU/LC) practices are critical to determine and this is one of the crucial driving forces of terrestrial ecosystem productivity and carbon sink variability. However, relatively few studies have quant…
View article: Using Multi-Temporal Landsat Images and Support Vector Machine to Assess the Changes in Agricultural Irrigated Areas in the Mogtedo Region, Burkina Faso
Using Multi-Temporal Landsat Images and Support Vector Machine to Assess the Changes in Agricultural Irrigated Areas in the Mogtedo Region, Burkina Faso Open
Over the last few decades, small-scale irrigation has been implemented in Burkina Faso as a strategy to mitigate the impacts of adverse climate conditions. However, the development of irrigated perimeters around small and medium water rese…
View article: Multiscale image fusion for submetric land cover mapping
Multiscale image fusion for submetric land cover mapping Open
info:eu-repo/semantics/published
View article: Use of Sentinel-2 and LUCAS Database for the Inventory of Land Use, Land Use Change, and Forestry in Wallonia, Belgium
Use of Sentinel-2 and LUCAS Database for the Inventory of Land Use, Land Use Change, and Forestry in Wallonia, Belgium Open
Due to its cost-effectiveness and repeatability of observations, high resolution optical satellite remote sensing has become a major technology for land use and land cover mapping. However, inventory compilers for the Land Use, Land Use Ch…
View article: EXPOSURE AND VULNERABILITY GEOSPATIAL ANALYSIS USING EARTH OBSERVATION DATA IN THE CITY OF LIEGE, BELGIUM
EXPOSURE AND VULNERABILITY GEOSPATIAL ANALYSIS USING EARTH OBSERVATION DATA IN THE CITY OF LIEGE, BELGIUM Open
Risk situation can be mitigated by prevention measures, early warning tools and adequate monitoring of past experiences where Earth Observation and geospatial analysis have an adding value. This paper discusses the potential use of Earth O…
View article: SUSTAINABLE AND SMART CITY PLANNING USING SPATIAL DATA IN WALLONIA
SUSTAINABLE AND SMART CITY PLANNING USING SPATIAL DATA IN WALLONIA Open
Simulating population distribution and land use changes in space and time offer opportunities for smart city planning. It provides a holistic and dynamic vision of fast changing urban environment to policy makers. Impacts, such as environm…
View article: From Regional LULC Model to Urban Population Density Simulation in Wallonia
From Regional LULC Model to Urban Population Density Simulation in Wallonia Open
Cities must develop ''Smart'' management and planning strategies to mitigate the challenges caused by urban population growth. The SmartPop project proposes a LULC model and dasymetric population density maps to Walloon policy makers for a…
View article: Suspended sediment and contaminant transport monitoring in navigable and unnavigable waterways (Wallonia, Belgium)
Suspended sediment and contaminant transport monitoring in navigable and unnavigable waterways (Wallonia, Belgium) Open
GISSeD
View article: Flash floods and muddy floods in Wallonia: recent temporal trends, spatial distribution and reconstruction of the hydrosedimentological fluxes using flood marks and sediment deposits
Flash floods and muddy floods in Wallonia: recent temporal trends, spatial distribution and reconstruction of the hydrosedimentological fluxes using flood marks and sediment deposits Open
Flash floods and muddy floods may cause severe human and material damage despite their small spatial extent and low occurrence. In late May 2008, a major event has affected the area of Liège. This paper describes the methodology used to re…