Siham Acharki

Mohammed VI Polytechnic University · Center for Remote Sensing Application

Up-to-date and accurate land use and land cover (LULC) maps are vital for monitoring various environmental and natural resources management. In this study, we evaluate classification performance of three optical satellite data in an area located in northwestern Morocco. Images from Landsat-8, Sentinel-2, and PlanetScope were exploited between 2020...

Climate change is one of the most important factors impacting hydrological regimes. In this paper, climate change impact on streamflow of Loukkos basin (northwestern Morocco) is evaluated using SWAT model for three future periods: near (2021–2040), mid (2041–2070), and far (2071–2100), compared to baseline 1981–2020. A set of bias-corrected climate...

Drought is a complex and devastating natural disaster that needs to be constantly investigated. In this study, standardized precipitation indexes (SPI-3 and SPI-6) were computed using daily precipitation data collected from six meteorological stations in a Mediterranean coastal basin (Northwestern Morocco) during the period from 1984 to 2021. Subse...

With the ever-increasing demand for food production, monitoring plastic-covered greenhouse (PCG) spatiotemporal distribution accurately holds significant importance for monitoring agricultural expansion and environmental impacts. For this purpose, in this paper, we used a random forest (RF) algorithm to produce multi-temporal PCGs maps in three dif...

Modeling and remote sensing contributions in study of climate change impact on water resources: Application to irrigated areas of Loukkos and Gharb (Morocco). In the current context of perceptible climate change, this thesis work mainly aims to assess the impact of these climate changes on water resources, at the level of irrigated perimeters of L...

Managing water resources in Morocco has always been a difficult task due to the scarcity of ground measurements and the diverse climatic and physical conditions. Over the past decade deep learning have proven to be valuable tools for watershed planning, offering high performance, accuracy, and predictive capabilities. In many Moroccan basins, snowm...

Snow is one of the important sources of water in most parts of the world, especially in regions with scarce precipitation, supplying approximately a third of the water needed for agricultural activities, drinking, and underground water sources. Accurate snow-cover information is important for scientific studies, water supply management and various...

Context Seawater intrusion into coastal aquifers represents a major global environmental challenge, leading to salinisation of these water resources. Aims This study aims to protect coastal aquifers from marine salinisation by assessing their vulnerability to seawater intrusion. Methods The DCG method was adapted by considering the weighted sum of...

The objectives of this study are to determine vegetation loss, changes in land surface temperature (LST) and their relation with vegetation indices (VIs) by utilizing multi-temporal satellite imagery over a thirty-year (1993–2023) period in Zhenjiang city located in Jiangsu province of China. For this purpose, a supervised classification technique...

Evapotranspiration plays a pivotal role in the hydrological cycle. It is essential to develop an accurate computational model for predicting reference evapotranspiration (RET) for agricultural and hydrological applications, especially for the management of irrigation systems, allocation of water resources, assessments of utilization and demand and...

Evapotranspiration plays a pivotal role in the hydrological cycle. It is essential to develop an accurate computational model for predicting reference evapotranspiration (RET) for agricultural and hydrological applications, especially for the management of irrigation systems, allocation of water resources, assessments of utilization and demand and...

In contemporary agriculture and environmental management, the need for precise and accurate crop maps has never been more vital. Although object-based (OB) methods within Google Earth Engine (GEE) improve accuracy and output quality in contrast to pixel-based approaches, their application to crop classification remains relatively rare. Therefore, t...

Monitoring and understanding Land Use/Land Cover (LU/LC) is critical for sustainable development, as it can impact various environmental, social, and economic systems. For example, deforestation and land degradation can lead to soil erosion, loss of biodiversity, and greenhouse gas emissions, affecting the quality of soil, air, and water resources....

Microplastic pollution in estuarine, coastal and riverine areas is considered a serious environmental and human health concern in Vietnam. The present study investigated potential sources, location, transport, and environmental impacts of microplastics in Vietnamese aquatic environments through a literature review and scientometrics analysis. Findi...

The agricultural sector faces several challenges that hinder productivity, including poor soil management, insect and parasite invasion, output impedance, and a lack of understanding among agricultural producers. A new generation of technologies, such as artificial intelligence (AI) and machine learning (ML), has recently been introduced into the a...

The Senegal-Mauritanian Basin onshore is the largest among the northwest African Atlantic margin basins, covering approximately 350,000 km2 and extending from Morocco to Guinea Bissau. Although valuable information is provided on the Senegalese part, data on other parts of the basin are scarce. The study aims to visualise the subsurface structure a...

The Bir Guendouz region, situated in Southern Morocco, is affected by saltwater intrusion. The transboundary aquifer is shared by Morocco and Mauritania, and it serves as the primary source of freshwater in this arid region. To differentiate between freshwater and saltwater areas, 750 non-invasive vertical electrical soundings (VES) were utilized a...

The consequences of global warming will aggravate the impacts of droughts. Future drought patterns are important for planning and policy formulation to mitigate the adverse effect of climate change. Consequently, this study aims at examining the projected the drought characteristics in seven meteorological stations in the Upper Draa Catchment (UDC)...

Monitoring changes in water areas within arid regions is vital for directing water resource development and ensuring efficient use, and addressing the impacts of drought and climate change. Thus, in this research, we examined the annual changes in surface water at the El Mansour Eddahbi (EME) dam (southeastern Morocco) from 1984 to 2023. To achieve...

Drought forecasting has implications for managing water and irrigation. Currently, with improved technology like artificial intelligence, forecasting can be more accurate. In this research, we chose standardized potential evapotranspiration index (SPEI) to characterize drought pattern. To achieve this, the data used was acquired from five meteorolo...

Improving reference evapotranspiration (RET) estimation accuracy contributes to effective water resource management, irrigation planning, and climate change assessments in agricultural systems. The widely recommended FAO-56 Penman-Monteith (PM-FAO56) model for RET estimation often faces limitations due to incomplete meteorological data availability...

Mapping and monitoring cropping patterns is essential for a sustainable agriculture. This study aims to map and monitor cropping patterns in the Multan district located in Pakistan. For this purpose, the dataset comprising 16-day composite products at a 250-m resolution from MODIS (onboard the Terra platform) and Landsat satellite images was used o...

Quantifying variation in precipitation and drought in the context of a changing climate is important to assess climate-induced changes and propose feasible mitigation strategies, particularly in agrarian economies. This study investigates the main characteristics and historical drought trend for the period 1980–2016 using the Standard Precipitation...

The current study determined the changes in Land Use/Land Change (LU/LC) and variation in land surface temperature (LST) in the Green Belt (Nasirabad district) area of Balochistan, Pakistan. To achieve this, we used GIS software (ArcMap 10.7.1) to analyze remote sensing data acquired from Landsat imagery taken in 1993, 2003, 2013, and 2023. A super...

Crop type identification is critical for agricultural sustainability policy development and environmental assessments. Therefore, it is important to obtain their spatial distribution via different approaches. Medium-, high- and very high-resolution optical satellite sensors are efficient tools for acquiring this information, particularly for challe...

Evapotranspiration (ET) is an important component of the water cycle and agricultural water balance. Planning, managing, and regulating agricultural water resources rely on reliable estimates of agricultural water consumption. It leads to establishing a sustainable water balance, mitigates the consequences of water scarcity, and prevents the waste...

Pakistan experiences extreme water scarcity, which has an impact on the sustainability of agricultural output. Irrigated agriculture could benefit from effective water management employing geographic information system (GIS) and remote sensing (RS) approaches. This study has shown that quantifying the transfer of soil-vegetation and atmosphere coul...

Proliferation of plastic-covered greenhouse (PCG) farming areas has been unparalleled in recent decades around the globe. Therefore, PCG’s proper mapping and continuous monitoring are required to maintain protected farming sustainability and to reduce plastic pollution. Topography is one of the key factors affecting PCG mapping accuracy from satell...

Land use/land cover (LULC) changes are among the most significant human-caused global variations affecting the natural environment and ecosystems. Pakistan's LULC patterns have undergone huge changes since the 1900s, with no clear mitigation plan. This paper aims to determine LULC and normalized difference vegetation index (NDVI) changes as well as...

The proliferation of plastic-covered greenhouse (PCG) farming has resulted in high horticulture crop yields worldwide during the last few decades. A proper and cost-effective PCG monitoring method is necessary for maintaining sustainable horticulture and high-quality agricultural production with less plastic pollution. Remote sensing applications f...

Wind energy is critical to traditional energy sources replacement in France and throughout the world. Wind energy generation in France is quite unevenly spread across the country. Despite its considerable wind potential, the research region is among the least productive. The region is a very complicated location where socio-environmental, technolog...

One of the most important parts of the hydrological cycle is evapotranspiration (ET). Accurate estimates of ET in irrigated regions are critical to the planning, control, and regulation of agricultural natural resources. Accurate ET estimation is necessary for agricultural irrigation scheduling. ET is a nonlinear and complex process that cannot be...

Volcanic ash fallout is a recurrent environmental disturbance of flora ash deposits from the Icelandic volcano Eyjafjöll (2010) over large areas are responsible for several impacts on ecological processes, agricultural production, and human health in Western Europe. This study assessed the ash fall effects from the subject volcano on the surroundin...

Dans le contexte des changements climatiques perceptibles actuellement, notre étude de recherche vise principalement à évaluer l’impact de ces changements climatiques sur les ressources en eau de deux périmètres irrigués du Maroc (Gharb et Loukkos), connus par une intense activité agricole. Pour atteindre cet objectif, la méthodologie adoptée s'est...

Dans cet article, nous évaluons les performances de classification de trois algorithmes non paramétriques (kNN, RF et SVM) en utilisant les données multi-temporelles de trois satellites (Sentinel-1, Alos-Palsar-2 et Sentinel-2) et de leurs combinaisons. La zone d'étude choisie se caractérise par un climat méditerranéen subhumide et une topographie...

Dans cet article, nous analysons la possibilité d’amélioration de la classification des cultures dans un périmètre irrigué du nord du Maroc en se basant sur la combinaison des données multi-temporelles de deux satellites (Sentinel-1 et Sentinel-2) avec l’inclusion de neuf indices. Le périmètre concerné (Loukkos), en plus de sa position stratégique,...

My Ph.D. presentation: "Modeling and remote sensing contributions in study of climate change impact on water resources: Application to irrigated areas of Loukkos and Gharb (Morocco)"

Assessment of land use and land cover change is a necessary technical tool to solve a series of current environmental issues in a specific region. Issues such as climate change impact on agriculture and water resources. A lot of projects have been carried out to find solutions to some of these environmental problems. To contribute to these efforts,...

Afin d’évaluer l’impact des changements climatiques sur les ressources en eau, nous réalisons dans ce travail une analyse statistique spatio-temporelle de certaines variables climatiques du bilan hydrique. En effet, pour comprendre les variations climatiques ayant eu lieu dans le passé, l’analyse statistique doit se faire sur des séries chronologiq...

This work is realized in the project context: PPR2 / 2016/79, OGI-Env, supported by MENFPESRS and CNRST.

Les impacts des changements climatiques deviennent de plus en plus alarmants pour l’ensemble du globe, notamment la fréquence accrue de certains phénomènes considérés rares dans le passé comme les inondations, les sécheresses, les feux de forêts et les vagues de chaleur intense. Il ressort des études scientifiques, une variabilité des précipitation...