Malik Amraoui

Malik Amraoui
Universidade de Trás-os-Montes e Alto Douro | utad · Departamento de Física

BSc; MSc; PhD

About

40
Publications
9,826
Reads
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681
Citations
Additional affiliations
January 2015 - present
Universidade de Trás-os-Montes e Alto Douro
Position
  • Researcher
October 2011 - present
Universidade de Trás-os-Montes e Alto Douro
Position
  • Professor (Assistant)
January 2008 - December 2014
University of Lisbon
Position
  • Researcher

Publications

Publications (40)
Article
In Portugal, drought characterizes the climatic variability, contributes to the increase of fire risk and its duration and intensity are expected to increase in future climate. Surprisingly, the quantitative and objective analysis to characterize the drought regime in current climate conditions as well as its influence on the occurrence of large wi...
Article
Full-text available
Heat waves (HW) can have devastating social, economic and environmental impacts. Together with long-term drought, they are the main factors contributing to wildfires. Surprisingly, the quantitative and objective analysis leading to the identification and characterization of HW in current and future climate conditions as well as its influence on the...
Article
Full-text available
Every year worldwide some extraordinary wildfires occur, overwhelming suppression capabilities, causing substantial damages, and often resulting in fatalities. Given their increasing frequency, there is a debate about how to address these wildfires with significant social impacts, but there is no agreement upon terminology to describe them. The con...
Article
In the European context, Portugal is the country with the highest number of wildfires and the second with more burnt area. The vast majority of these events are of human origin, whether caused by accident, negligence or arson, reason why it is particularly important to know the regime of these wildfires for forest and wildfire management activities...
Article
Active fire information provided by TERRA and AQUA instruments on-board sun-synchronous polar MODIS platform is used to describe fire activity in the Western Mediterranean and to identify and characterize the synoptic patterns of several meteorological fields associated with the occurrence of extreme fire activity episodes (EEs). The spatial distri...
Article
Full-text available
Monitoring the main grapevine phenological stages is a key procedure for optimizing vineyard activities and improving yield and quality attributes. Remote sensing may be an effective and practical monitoring tool, as data from on-board satellite sensors can measure vegetative growth. In the current study, a 12-year time series of four main phenopha...
Article
Full-text available
Aim of study: The characterization of the fuels is an important aspect of the fire regime in each specific ecosystem while fire is an important disturbance for global vegetation dynamics. This study aims to identify and characterize the spatial and temporal evolution of the fire incidence and of the vegetation types that are most affected by forest...
Conference Paper
Full-text available
Representing more than 85% of burned area in Europe, the Mediterranean is one of the regions of the world most affected by large wildfires that burn half a million of ha of vegetation cover every year causing extensive economic losses and ecological damage. Fire in the Mediterranean region is a natural phenomenon and, like fire in general, it links...
Chapter
Full-text available
Biomass burning is extremely important at the global, regional and local scales and has impressive impacts at the atmospheric, climatic, environmental and socio-economical levels. The temperate biome of the Mediterranean regions is characterised by rainy and mild winters followed by warm and dry summers that make the region especially prone to the...
Article
Full-text available
Here we present a procedure that allows the operational generation of daily maps of fire danger over Mediterranean Europe. These are based on integrated use of vegetation cover maps, weather data and fire activity as detected by remote sensing from space. The study covers the period of July–August 2007 to 2009. It is demonstrated that statistical m...
Conference Paper
Full-text available
Mediterranean Europe is characterized by cold wet winters followed by hot dry summers that make the region especially prone to the occurrence of a large number of fires, especially when the summer season is affected by extreme weather events. There are a number of rating systems of fire danger, but the Canadian Forest FireWeather Index System (CFFW...
Article
Mediterranean regions are some of the most affected by wildfires and remote-sensed information about fire activity, as provided by the SEVIRI instrument on-board Meteosat-8, is especially valuable for forest and civil protection activities. An analysis is performed of the spatial distribution of fire events during the period of July and August 2007...
Conference Paper
Full-text available
For Europe, several databases of wildfires based on the satellite imagery are currently available and being used to conduct various studies and produce official reports. The European Forest Fire Information System (EFFIS) burned area perimeters database comprises fires with burnt area greater than 1.0 ha occurred in the Europe countries during the...
Conference Paper
Full-text available
Hot spot detection by means of sensors on-board geostationary satellites allows studying wildfire activity at hourly and even sub-hourly intervals, an advantage that cannot be met by polar orbiters. Since 1997, the Satellite Application Facility for Land Surface Analysis has been running an operational procedure that allows detecting active fires b...
Conference Paper
Fire is a prominent global phenomenon and wildfires are critical elements in the Earth system, linking climate, human activity, and vegetation. Detection of fire activity has long been identified as a task with great potential to be derived from space. The launch in 2002 of Meteosat-8, the first geostationary satellite of the Meteosat Second Genera...
Conference Paper
Biomass burning is a significant global source of greenhouse gases (e.g. carbon dioxide and methane) as well as of nitric and carbon monoxides, methyl bromide and hydrocarbons that lead to acid rain and the photochemical production of tropospheric ozone and destruction of stratospheric ozone which impact global climate. Other impacts of biomass bur...
Conference Paper
Full-text available
Encompassing the lands around the Mediterranean Sea, the Mediterranean Basin is associated to Mediterranean forests, woodlands, and scrub. This temperate biome is characterised by rainy and mild winters followed by warm and dry summers that make the region especially prone to the occurrence of a large number of fire events. Meteorological factors p...
Conference Paper
Full-text available
Rainy and mild winters followed by warm and dry summers make of Mediterranean Europe a region especially prone to the occurrence of fire episodes. It is therefore not surprising that the largest number of fires and amounts of burnt area are found to occur in southern European countries, namely Portugal and Spain. Used alone or combined with vegetat...
Article
An operational procedure is presented that allows detecting active fires based on information from Meteosat-8/SEVIRI over Africa. The procedure takes advantage of the temporal resolution of SEVIRI (one image every 15 min), and relies on information from SEVIRI channels (namely 0.6, 0.8, 3.9, 10.8 and 12.0 µm) together with information on illuminati...
Conference Paper
Full-text available
The relevance of Science and Technology in our daily routines makes it compulsory to educate citizens who have both scientific literacy and scientific knowledge. These will allow them to be intervening citizens in a constantly changing society. Thus, physical and natural sciences are included in school curricula, both in primary and secondary educa...
Conference Paper
In Portugal, geosciences are included in the program of study of the primary (grade 1-9, for students between the ages of 6-14 years) and secondary school (grades 10-12, between the ages of 15-18 years) in the disciplines of geography, natural sciences and in physical sciences. The concepts of temperature, pressure, precipitation, humidity and radi...
Conference Paper
Full-text available
Earth sciences are included in both elementary and secondary education school curricula in Portugal because it increases students' skills concerning living in planet Earth. Astronomy concepts and laws are learned to provide a global understanding of the constitution and characterization of the universe, the solar system and the position of Earth in...
Chapter
Full-text available
Biomass burning is a significant global source of greenhouse gases (e.g. carbon dioxide and methane) as well as of nitric and carbon monoxides, methyl bromide and hydrocarbons that lead to acid rain and the photochemical production of tropospheric ozone and destruction of stratospheric ozone which impact global climate. Other impacts of biomass bur...
Conference Paper
Full-text available
A queima de biomassa é um fenómeno global que ocorre, tanto nas regiões tropicais, como nas zonas temperadas e boreais. Trata-se de um acontecimento regular que se observa nas florestas tropicais do Brasil e da Indonésia, nas florestas temperadas dos Estados Unidos da América e da Europa, nas florestas boreais da Sibéria, China e Canadá, nas savana...
Chapter
Full-text available
Fire-related processes have long been identified as applications with great potential to be derived from SEVIRI/Meteosat and AVHRR/Metop. The set of applications range from pre-fire signal, which merged with meteorological parameters provide indicators of fire risk, up to fire detection and monitoring and fire scar identification. The severity of w...

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Projects

Projects (2)
Project
To advance the knowledge on the prevention and preparation of society to cope with extreme fires; to enhance the social capacities of Portuguese communities and institutions; to prevent and prepare for this kind of extreme phenomenon, through more balanced prevention, mitigation and suppression procedures; to provide a new model of suppression organization; to transfer knowledge and dissemination of research to operational world in a friendly way; and to provide a new model of wildfire governance in Portugal.
Project
The overarching goal is to advance the understanding of fire behaviour potential and systematize its prediction on a global scale. This requires compilation of the available fire behaviour information in a worldwide database, and integrated analysis of variation in fire behaviour characteristics. Our expectation is that universal functional relationships will be able to tackle the differences in fire behaviour potential that arise from distinct environmental configurations. The analysis of global fire behaviour and climatic data will enable BONFIRE to accomplish: 1. Characterization and synthesis of regional fire behaviour patterns and assessment of the influences of its environmental drivers, at the scale of broad vegetation types and/or biomes. Results will increase the understanding of fire regime shifts in relation to global change. 2. Development of empirically-based models to predict fire behaviour characteristics, fuel consumption and carbon emissions for (sub)-regional vegetation classification units. Results will provide a sound foundation for fire management and fire research applications. 3. Development of an optimized set of fuel models for (sub)-regional vegetation types to use with semi-empirical fire behaviour simulation tools, as an alternative to empirically-based models. 4. Identification and characterization of regional fire climates and, informed by the fire behaviour models, definition of fire danger classes for (sub)-regional vegetation types. Results will enable objective fire danger assessments on a global scale.