Monitoring water bodies such as lakes is expensive, but remote sensing made it cost-effective. The extensive anthropogenic activities negatively impact the water lakes everywhere. Moreover, the Egyptian coastal lakes are not an exception. This paper investigates changes in land use/land cover and detects coastal changes of Buullus Lake, ranked to be the second-largest Egyptian northern Mediterranean

This study is the first to document an algal bloom caused by Noctiluca scintillans, which was detected using remote sensing techniques and confirmed in the field along the coast of Elba National Park. Noctiluca scintillans is a phytoplankton species that accumulate toxic ammonia that endangers various organisms, including fish, birds, mammals, and human. Therefore, monitoring red tide is essential

One of the analyses in hyperspectral images is target detection. With recent developments and the creation of high spatial resolution images, the need to use both spectral and spatial information in the target detection has increased. Recently, an effective approach for spectral and spatial classification has been proposed using minimum spanning forest (MSF) algorithm. It was attempted to improve this

In the era of communication technology and its integration with the learning process, the role of the educational institutions has significantly changed, especially after the expansion of Internet use and the rise of what's currently known as “Internet-based learning environments”. After the COVID-19 pandemic, it was necessary for researchers to search for alternatives to the traditional pedagogical

Groundwater demand has dramatically increased due to the swift demographic explosion, especially in arid areas, where groundwater is considered the main source for all purposes. Thus, this research integrates climatological, lithological, structural, topographical, hydro-morphological, and geoelectrical data to explore groundwater potential zones in the central part of Sinai Peninsula, Egypt using

Precipitable water vapor (PWV) is a meteorological variable that impacts the major atmospheric processes. It is a non-homogeneous variable that differs spatially and temporally. The spatial and temporal variability of the PWV in Egypt is investigated in this study using Global Navigation Satellite Systems (GNSS) Radio Occultation (RO) from 2006 to 2021. The GNSS RO technique was used to obtain PWV

Environmental multihazard assessment modeling is essential for developing plans to mitigate the impact of future risks. They can be generated for a specific location by combining assessment maps of different types of natural hazards. Multiple approaches were used in this study to achieve an analytical hierarchy. “, including the usage of a geographical information system (GIS), fieldwork, geoanalytical

Geomorphology refers to the study of the Earth’s physical land surface features. Digital Elevation Model (DEM) is a digital imagery where each pixel represents elevation value above or below mean sea level. The availability of DEM allows analysis of landscape morphology and related processes in terms of geomorphometry. DEM of Difference (DoD) techniques are used to estimate the elevation variations

In the present work, a deep learning-based network called LeNet is applied for accurate grassland map production from Sentinel-2 data for the Greater Sydney region, Australia. First, we apply the technique to the base date Sentinel-2 data (non-seasonal) to make the vegetation maps. Then, we combine short time-series (seasonal) data and enhanced vegetation index (EVI) information to the base date imagery

Synthetic aperture radar (SAR) is considered a prevailing tool for remote sensing. It benefits working with high efficiency in all weather and all-day circumstances, making SAR is very confident compared to other types of remote sensing. The SAR platform moves with constant velocity and height, with a linear path for ideal situations. However, this assumption is not realized in satellite movement,

Egypt, the region’s agricultural powerhouse, has the largest irrigation area among the eleven Nile Basin countries. Meanwhile, the demand for water and irrigation management is becoming necessary. The Internet of Things (IoT) plays a key role in smart agriculture and water management to cope with modern water scarcity. This paper presents the methodology of design and assessment of a small IoT satellite

Abstract not available

Pre-harvest prediction of a crop yield may prevent a disastrous situation and help decision-makers to apply more reliable and accurate strategies regarding food security. Remote sensing has numerous returns in the area of crop monitoring and yield prediction which are closely related to differences in soil, climate, and any biophysical and biochemical changes. Different remote techniques could be used

Abstract not available

The intangible cultural heritage is considered part of the identity and history of any country as well as it plays a vital role in economics. Traditional craftsmanship is perhaps the most tangible manifestation of intangible cultural heritage. Egypt's heritage in handicrafts is rich, unique and diversified, all stemming from its long history. The handicraft centers are available in all the governorates

The present study estimates spatial and temporal (seasonal/annual) trends in daytime land surface temperature (LST) and its drivers (elevation, cloud fraction (CF), atmospheric water vapor (AWV), normalized difference vegetation index (NDVI), and snow cover area (SCA)) over the High Mountain Asia (HMA) during 2001–2019 using MODIS remote sensing data. The findings of the study showed mixed trends in

Abstract not available

Historical conservation and restoration is an important issue for heritage structures, this research aims to develop heritage building information model (HBIM) for Amman citadel in Jordan. In Jordanian Heritage Management, such models are still regarded a long way from becoming a well-established and widely used technique. Using terrestrial laser scanning technologies, the research will bridge the

Modern-day devices, transport, and green energy require growing supply of rare earth elements (REEs), which subsequently provide the basics for attempts on developing the efficient and innovative methods for their detection and exploration. Remote sensing data / techniques provide great possibilities to quick and non‑destructive exploration of such deposits, even in relatively unreachable and socially

Remote sensing satellites require very accurate pointing to specific locations of interest with high resolution and small latency. Therefore, the space imaging systems attempted to achieve the possible highest ground resolution with minimum cost as possible. In this paper, design process of an electro-optical imaging payload is described considering the limited weight and small volume in addition to

Renewable energy resources are strategic solutions to develop remote urban areas, provide accessibility, meet the growing energy needs, prevent and mitigate adverse environmental impacts of anthropogenic activities. The purpose of the current research paper is to map and designate optimal sites for locating new hybrid solar and wind farms that fulfill suitability criteria for photovoltaic power plants

Urban heat islands (UHIs) represent one of the significant factors in regard to environmental and human health. UHIs are significantly changeable, responding to the land use type and the dominant anthropogenic activities. In this research, UHIs in El-Minya cities were identified based on Land Surface Temperature (LST) measurements. Thermal bands of Landsat imagery were processed to produce LST in the

Rooftop detection has numerous applications such as change detection in human settlements, land encroachments, planning routes to rural areas and estimation of solar generation potential of cities. Detecting the number, type and shape of building roofs form part of preliminary procedures to perform a variety of tasks for making decisions. Assessment of rooftops in rural areas is an important task in

The Wadi Sa'al-Wadi Zaghara area, southern Sinai, Egypt is a key geologic region within the framework of the Arabian-Nubian Shield (ANS). It almost documents the whole tectono-thermal evolution history of the Pan-African orogeny; hence it records the latest stages of Rodinia breakup (Late Mesoproterozoic) till the penultimate regional deformation event (D3) that impacted the northern tip of the ANS

Since 2010, a slew of new satellite altimetry missions has started providing gravity data generated from altimetry with worldwide coverage and high quality that rivals shipborne gravity measurements in several areas. As a result, worldwide offshore high-resolution gravity fields have considerably improved. This paper aims to compare two altimetry gravity models i.e. DTU21 and SSv29.1 with shipborne

Global Navigation Satellite System (GNSS) Radio Occultation (RO) is an excellent remote sensing technique for sounding the atmosphere. GNSS satellites send signals through the atmosphere of the Earth, and a GNSS receiver mounted on a Low Earth Orbit (LEO) satellite receives them. Through GNSS RO, refractivity will be estimated, which is considered the main parameter in the determination of planetary

LULC maps are important thematic maps that provide a baseline for monitoring, assessing, and planning activities. This study incorporates spatio-temporal land use/ land cover (LULC) monitoring (1991–2021) and urban growth modeling (2021–2041) of Islamabad, Pakistan to deduce the changes in various LULC classes in the past and the future by incorporating realistic influential thematic layers and Artificial

This study presents a novel, semi-automated approach for integrating decision rules and object-based image analysis (OBIA) methods for identifying and mapping karst zones and landforms. We developed a multi-resolution segmentation approach using an Approximate Gaussian function to compute the degree of fuzzy memberships of object-based features and applied it to Sentinel-2 satellite images and a digital

Rockfalls and unstable slopes pose a serious threat to people and property along roads/highways in the southwestern mountainous regions of Saudi Arabia. In this study, the application of terrestrial light detection and ranging (LiDAR) technology was applied aiming to propose a strategy to analyze and accurately depict the detection of rockfall changes, calculation of rockfall volume, and evaluate rockfall

Sinai Mesozoic basalts are restricted in its southwestern portion at Um Bogma area, where they occur as intra-continental fissure-fed sills, dykes, plugs and lava flows, following mainly the older structural and crustal weaknesses planes. During Late Paleozoic - Middle to Late Triassic, Egypt had witnessed sporadic tectonic disturbances and faulting activities accompanied by volcanisms. Faulting activity

Landslides are geological hazards that can have severe impacts, threatening both the people and the local environment of highlands or mountain slopes. Landslide susceptibility mapping is an essential tool for predicting landslides and mitigating landslide-associated damage in areas prone to these events. This study aims to investigate the combination of using an adaptive network-based fuzzy inference

Present paper is an initial attempt to study chemical and hyperspectral characteristics of topsoil of different soil taxonomic units in El-Fayoum depression. Archival data, field survey, soil profiles sampling and analyses, hyperspectral data assessment and spectral indices applications were integrated with statistical investigations to achieve the aim of the present study. Soil map of El-Fayoum shows

The present research aims to find the groundwater prospective areas by using Geographic Information System and Remote Sensing based frequency ratio technique. The data sets that affect groundwater such as geomorphology, lithology, slope, soil, rainfall, drainage density, lineament density and land use/ land cover were taken under consideration for finding the groundwater prospective areas in the Bundelkhand

Wadi-Allaqi district, in the southern part of the Eastern Desert of Egypt, is a historic well-known gold resource that has been exploited since the Pharaonic era. The study area represents the western segment of Wadi-Allaqi, about 220 km southeast Aswan city, Upper Egypt. It covers approximately 4702 km2. Exploring new potential mineralization zones was conducted by integrating the Landsat-8 and aeromagnetic

The tectonic framework, lithostructural and mineralised zones of Iwo-Apomu region of Precambrian Basement Complex rocks were investigated using integrated aeromagnetic and satellite remote datasets. Fast Fourier Transforms (FFT) performed on aeromagnetic data were: Butterworth Filter (BF), Reduction to Magnetic Equator (RTE), Regional field, Residual field, Tilt-Angle Derivative (TDR), First and Second

In practice, urban and regional planners often use a pixel-based method for image classification. Unfortunately, it produces lower accuracy than an Object-Based Image Analysis (OBIA) method, especially for the high-resolution images. To assess spatial planning, scholars rarely used the OBIA method in open-source software. This paper aims to develop a method for classifying land cover and assessing

The development of polarimetric decomposition techniques improves the capability to understand the complex scattering mechanisms occurring in the dryland crops. The present study is focused on assessing the sensitivity of coherent, incoherent, model and Eigen vector-based decomposition techniques from multitemporal Radarsat-2 polarimetric dataset to scattering mechanisms occurring in the critical growth

Recently, detecting the edges and geologic structures (deep and shallow) from potential field sources provides a fundamental tool for interpreting geological structures. Therefore, the high precision computation of the edges of potential sources is becoming an essential requirement for studying subsurface structures. In this study, nine common detectors like tilte angle (TA), Theta-map (TM), Horizontal

Difference values between Global Positioning System (GPS)-Radio Occultation (RO) and radiosonde (RS) profiles are analyzed to assess the integration applicability between them in Egypt. Compared profiles which have altitudes ranged from 3 to 25 km are used in analysis for ten years of RO and RS data. According to single profile comparison and t test, all difference values are not significant except

The Oligo-Miocene basaltic exposures at Wadi Abu Qada – Wadi Wata area, west-central Sinai Peninsula occur as intra-continental fissure-fed eruptions in the form of km-scale sill attaining thickness of about 30 m and dyke of about 70 m thick, intruding/extruding the Early Cretaceous to Early Eocene sedimentary sequences. Stratigraphy of the study area was dealt with in the context of the geologic setting

Integrated automated application for Water Resources and Agriculture Spatial Indicators System (WRASIS) using remote sensing Data was developed to monitor and assess different developments projects in agriculture field. This system is based on the analysis of remotely sensed time series data of (Agriculture Moderate Resolution Imaging Spectra-radiometer MODIS NDVI – Rain-Fall Estimate RFE 2.0). Three

The Sinn El-Kaddab plateau, south-west Aswan, Egypt is topped by the Lower Eocene Dungul Formation, which comprises the Nagb Dungul Limestone Member, being underlain by the Abu Ghurra Shale Member (Ca-bentonite). Remote sensing techniques were employed to discriminate the different geological formations of the area. Mineralogy and chemical composition of Ca-bentonite were highlighted. It is composed

Remote sensing data, spectral analyses, Geographic Information System (GIS) tools and field work were integrated for detecting the spatial distribution of the alteration zones in the study area. Remote sensing studies including; spectral signatures analyses and satellite image processing, were used for identifying the alteration minerals setting of the study area then extracting the alteration zones

This study uses remote sensing techniques and Geographic Information Systems GIS to monitor and evaluate the changes in the shoreline and the surface water area of Al-Razzazah Lake in Iraq from the year 1989 until 2020. Based on six satellite Landsat images of the study area for the years 1989, 1999, 2002, 2015, 2019, and 2020, changes were evaluated and mapped. Two methods; Support Vector Machine

The development of Agro-Ecological Zones (AEZs) is a vital step in sustainable agricultural development. This study proposes a quantitative method for developing the AEZs and land suitability for Wadi El-Grawla, North-Western Coastal Region (NWCR), Egypt. Hundreds of surface soil samples and twenty soil profiles covering the variations in the study area were collected; then, the inverse distance weighted

A collaborative representation (CR) based method is proposed for polarimetric synthetic aperture radar (PolSAR) data classification in this work. Although CR can well smooth the PolSAR data and remove the speckle noise but it may degrade the class boundaries in heterogeneous regions. To deal with this difficulty, a weighted CR with considering the edge information is proposed. In addition, to further

Machine learning (ML) classifiers provide convenience and accuracy in coastline extraction compared to traditional methods and image processing techniques. In literature, the studies about coastline extraction with machine learning classifiers are not focused adequately on the coast types that affect the process. To eliminate this gap, machine learning classifiers were examined in terms of their accuracies

The late Neoproterozoic granitoids of Gebel Um Shager and Gebel Hamadat, Central Eastern Desert of Egypt, in addition to Paleozoic trachytes of both areas were discriminated using Landsat-8, and Sentinel-2 dataset. Band rationing and Principal Component Analysis techniques were applied. The studied granitoids represent the extreme end-members of the subduction-related I-type calc-alkaline granitic

Floods, along with coastal erosion, are among the most dangerous events that threaten heritage sites worldwide. Space agencies (e.g. NASA and ESA) create new platforms and applications that can help for providing the time in studying the changes occurring in the land use/land cover besides flood events such as the Google Earth Engine platform. This study aims to use the most up-to-date data, methods

Increased human activity and dynamic climate variables have radically altered the global land use land cover (LULC) pattern and the ecosystem services (ES) they offer. However, assessing the impact of such LULC dynamics on ecological resources has rarely been attempted, especially in Bangladesh. Here, we assessed the dynamics of LULC change and associated ecosystem service values (ESVs) of coastal

Crop acreage analysis and yield estimation are of prime importance in field-level agricultural monitoring and management. This enables prudent decision making during any crop failure event and for ensuing crop insurance. The free availability of the high resolution Sentinel-2 satellite datasets has created new possibilities for mapping and monitoring agricultural lands in this regard. In the present

Port Said Governorate is one of the distinguished Egyptian coastal areas in regard to location, activities and resources. Present study aims to evaluate spatial and temporal changes in Land Use/Cover (LULC), Land Surface Temperature (LST) and Shoreline as a result of natural and anthropogenic factors using geospatial techniques. To achieve this aim, four calibrated multi-temporal Landsat images dated

Drought is a complex natural phenomenon with a wide variety of natural and socioeconomic impacts, including water scarcity, health, agriculture, etc. This study provides a short-term (2000–2019) trend assessment of drought in Hail region, Saudi Arabia, using the Normalized Difference Vegetation Index (NDVI) and rainfall dataset synchronized by the assessment of the decadal trends of the local land

The goal of this research is to assess the accuracy of the global geopotential models (GGMs) from 2018 until the present in the Red Sea. The assessment was done by using the gravitational spectral analysis of models with each other and with the comparison with the shipborne gravity anomalies gathered along the Red Sea. In this study, combined models such as (XGM2019e 2159, SGG-UGM 2 and SGG-UGM 1)

The Corona pandemic limits human activities at a time when the world is facing challenges in food safety. Wheat is foremost cereal crop grown healthy in Egypt, especially in El Sharkia Governorate. The target of this work is to monitor wheat cultivation in El Sharkia Governorate during COVID-19 pandemic. The Normalized Difference Vegetation Index (NDVI) estimates were made by band 4 and band 5 of Landsat-8

The basement rocks around Baranis-Aswan Road, South Eastern Desert of Egypt encompasses a variety of the oldest Pan-African rock units including medium-grade hornblende schist, a variety of gneisses and migmatite as well as medium- to low-grade metavolcanics. These were intruded by syn- to late-tectonic tonalite, granodiorite, quartz diorite as well as gabbros. The exposed basement rock units in the

The emergence of 2019 novel corona virus disease (COVID-19) raised global health concerns throughout the world. It has become a major challenge for healthcare personnel and researchers throughout the world to efficiently track and prevent the transmission of this virus. In this paper, the role of geographic information system (GIS) based spatial models for tracking the spread of COVID-19 and discovery

The initial phase of the Gulf of Suez rifting in the late Oligocene was accompanied by the eruption of continental basaltic magmas, which continued to the early Miocene. Within the rift zone at Abu Zenima area, west-central Sinai, several km-scale Oligo-Miocene basaltic exposures in the form of dykes, sills and lava flows intruded/extruded the Phanerozoic sedimentary successions. These basaltic outcrops

For the last 6 decades, the Nile Valley region has been subjected to expanding reclamation, advancing agricultural and human activities. Extreme changes in the groundwater regime and land cover have been detected. Evaluation and mapping of groundwater and its controlling factors as important environmental factors have been assessed and managed based on their Spatio-temporal distribution and effect

Diversity and abundance of mosquito larvae have significant impact on the dynamics of disease transmission. In the present study, remote sensing (RS) technology integrated with field survey and spatial analyses were utilized to map mosquito breeding habitats and assess areas vulnerable to disease transmission in the Nile Valley of Giza governorate. An entomological survey was carried out to 20 accessible