Timothy Dube
YOU?
Author Swipe
View article: Land use land cover classification in Japanese wetland and agricultural landscapes via machine learning and multi-source sentinel data
Land use land cover classification in Japanese wetland and agricultural landscapes via machine learning and multi-source sentinel data Open
This study assessed land use and land cover (LULC) in the Oze wetland and Hatase agricultural fields using Random Forest (RF) and Support Vector Machine (SVM). Sentinel-1 Synthetic Aperture Radar (SAR) and Sentinel-2 optical data from 2023…
View article: Fine-scale mapping of irrigation suitability in South Africa using ensemble modelling
Fine-scale mapping of irrigation suitability in South Africa using ensemble modelling Open
Food insecurity, exacerbated by a growing population and environmental change, poses a significant challenge in Southern Africa. Enhancing agricultural productivity through efficient irrigation practices is crucial for achieving food and w…
View article: Synergistic use of Sentinel-1 and Sentinel-2 data for Fall Armyworm infestation detection and mapping in maize croplands
Synergistic use of Sentinel-1 and Sentinel-2 data for Fall Armyworm infestation detection and mapping in maize croplands Open
View article: Integrated flood modelling and risk assessment in urban areas: A review on applications, strengths, limitations and future research directions
Integrated flood modelling and risk assessment in urban areas: A review on applications, strengths, limitations and future research directions Open
Study region: Global scale. Study focus: The purpose of this study is to provide a comprehensive global assessment of urban flood modelling by: (i) critically reviewing the most widely used flood models in urban settings; (ii) synthesizing…
View article: Understanding the Spatiotemporal Variation of Water Quality and Phytoplankton Biomass in Subtropical Reservoir Using the Blue–Sky Multispectral Data
Understanding the Spatiotemporal Variation of Water Quality and Phytoplankton Biomass in Subtropical Reservoir Using the Blue–Sky Multispectral Data Open
Chlorophyll‐ a (chl‐ a ) is an optically active compound used as a proxy for phytoplankton biomass to determine the trophic states of aquatic ecosystems. Blue–sky remote sensing technologies present low‐cost and effective monitoring techni…
View article: Interactive effect of staggered sowing and genotype on pearl millet productivity under semiarid Sub-Saharan climatic conditions
Interactive effect of staggered sowing and genotype on pearl millet productivity under semiarid Sub-Saharan climatic conditions Open
View article: Multi-temporal catchment and wetland scale soil moisture and vegetation analysis in Shashe, Tugwi and Zibagwe sub-catchments of Zimbabwe
Multi-temporal catchment and wetland scale soil moisture and vegetation analysis in Shashe, Tugwi and Zibagwe sub-catchments of Zimbabwe Open
We utilized Sentinel-1 Synthetic Aperture Radar (SAR) surface soil moisture, Sentinel-2 L1C-derived Enhanced Vegetation Index (EVI), and Soil Moisture Active Passive (SMAP) surface and root zone soil moisture data to assess soil moisture d…
View article: A Summary of Recent Advances in the Literature on Machine Learning Techniques for Remote Sensing of Groundwater Dependent Ecosystems (GDEs) from Space
A Summary of Recent Advances in the Literature on Machine Learning Techniques for Remote Sensing of Groundwater Dependent Ecosystems (GDEs) from Space Open
While groundwater-dependent ecosystems (GDEs) occupy only a small portion of the Earth’s surface, they hold significant ecological value by providing essential ecosystem services such as habitat for flora and fauna, carbon sequestration, a…
View article: Detection of Fall Armyworm infestation in maize fields during vegetative growth stages using temporal Sentinel-2
Detection of Fall Armyworm infestation in maize fields during vegetative growth stages using temporal Sentinel-2 Open
View article: Remote sensing of land cover change dynamics in mountainous catchments and semi-arid environments: a review
Remote sensing of land cover change dynamics in mountainous catchments and semi-arid environments: a review Open
This paper investigates the impacts and dynamics of land use/land cover (LULC) change dynamics in mountainous catchments in semi-arid regions, focusing on drivers, methods, and hydrological impacts. This study reviews studies using the app…
View article: Seasonal and Spatial Dynamics of Surface Water Resources in the Tropical Semi-Arid Area of the Letaba Catchment: Insights from Google Earth Engine, Landscape Metrics, and Sentinel-2 Imagery
Seasonal and Spatial Dynamics of Surface Water Resources in the Tropical Semi-Arid Area of the Letaba Catchment: Insights from Google Earth Engine, Landscape Metrics, and Sentinel-2 Imagery Open
Understanding the spatial and seasonal dynamics of surface water bodies is imperative for addressing water security challenges in water-scarce regions. This study aimed to evaluate the efficacy of multi-date Sentinel-2-derived spectral ind…
View article: Macroinvertebrate diversity within pan wetlands in relation to geological type and hydroperiod in a protected subtropical Austral national park
Macroinvertebrate diversity within pan wetlands in relation to geological type and hydroperiod in a protected subtropical Austral national park Open
View article: A New Theory of Global Climate and Ecosystem Change Based on Planetary Orbital Variations
A New Theory of Global Climate and Ecosystem Change Based on Planetary Orbital Variations Open
Traditional climate change research has primarily focused on internal factors of Earth, particularly the impact of human activities on greenhouse gas emissions. This paper proposes the "Mao's Theory of Global Climate and Ecosystem Change B…
View article: Machine Learning and Spatio Temporal Analysis for Assessing Ecological Impacts of the Billion Tree Afforestation Project
Machine Learning and Spatio Temporal Analysis for Assessing Ecological Impacts of the Billion Tree Afforestation Project Open
This study evaluates the Billion Tree Afforestation Project (BTAP) in Pakistan's Khyber Pakhtunkhwa (KPK) province using remote sensing and machine learning. Applying Random Forest (RF) classification to Sentinel‐2 imagery, we observed an …
View article: Derivation of allometric equations and carbon content estimation in mangrove forests of Malaysia
Derivation of allometric equations and carbon content estimation in mangrove forests of Malaysia Open
Mangrove forests play a vital role in carbon sequestration and climate change mitigation, yet comprehensive data on their carbon storage capacity in Malaysia remain limited. This study investigated allometric relationships and carbon conte…
View article: Influence and Prediction of Planetary Orbital Changes on Earth's Atmospheric Water Vapor Variations
Influence and Prediction of Planetary Orbital Changes on Earth's Atmospheric Water Vapor Variations Open
A few people have gradually realized that the superposition effect of different planets in the solar system on Earth under high-speed motion and dynamic equilibrium can sometimes trigger extreme natural disasters. Due to the relatively reg…
View article: Gis-Based Assessment of Sika Deer (Cervus Nippon) Habitat Suitability and Human Conflict Risk Using Integrated Analytical Hierarchy Process-Multi Criteria Decision Analysis
Gis-Based Assessment of Sika Deer (Cervus Nippon) Habitat Suitability and Human Conflict Risk Using Integrated Analytical Hierarchy Process-Multi Criteria Decision Analysis Open
View article: Bayesian Spatial-Temporal Modelling of Relative Mortality Risk in East Africa: The Role of Climate, Air Pollution, and Urbanization
Bayesian Spatial-Temporal Modelling of Relative Mortality Risk in East Africa: The Role of Climate, Air Pollution, and Urbanization Open
View article: Spatiotemporal analysis of surface Urban Heat Island intensity and the role of vegetation in six major Pakistani cities
Spatiotemporal analysis of surface Urban Heat Island intensity and the role of vegetation in six major Pakistani cities Open
The Urban Heat Island (UHI) phenomenon exacerbates thermal discomfort in urban areas and significantly contributes to urban overheating when combined with climate change. This study investigates the spatiotemporal patterns of Surface Urban…
View article: Assessing drivers of vegetation fire occurrence in Zimbabwe - Insights from Maxent modelling and historical data analysis
Assessing drivers of vegetation fire occurrence in Zimbabwe - Insights from Maxent modelling and historical data analysis Open
View article: A critical review of literature on remote sensing grass quality during the senescence phenological stage
A critical review of literature on remote sensing grass quality during the senescence phenological stage Open
This article provides a critical review of progress, challenges, emerging gaps as well as future recommendations on the remote sensing of grass quality during the senescence phenological stage. The study adopted a critical approach and ana…
View article: Leveraging climate and remote sensing metrics for predicting forest carbon stock using Bayesian geostatistical modelling under a projected climate warming in Zimbabwe
Leveraging climate and remote sensing metrics for predicting forest carbon stock using Bayesian geostatistical modelling under a projected climate warming in Zimbabwe Open
Climate change, driven by escalating carbon dioxide (CO2) emissions, poses a significant threat to forest ecosystems and the livelihoods of communities reliant on them, especially for the global south countries and regions like the eastern…
View article: Assessing the Seasonal Water Requirement of Fully Mature Japanese Plum Orchards: A Systematic Review
Assessing the Seasonal Water Requirement of Fully Mature Japanese Plum Orchards: A Systematic Review Open
Japanese plums have relatively high water requirements, which depend on supplementing rainfall volumes with accurately quantified irrigation water. There is a lack of knowledge on the seasonal water requirements of plum orchards. This gap …
View article: Selected Driver Variables for the Simulation of Land-Use and Land-Cover Change for the Republic of Djibouti: A Study from Semi-Arid Region
Selected Driver Variables for the Simulation of Land-Use and Land-Cover Change for the Republic of Djibouti: A Study from Semi-Arid Region Open
This study aims to integrate driver variables with a land use change model (LCM) to explore their impact on the natural environment within the context of land-use changes in the Republic of Djibouti, considering possible Business-as-usual …
View article: Remote sensing crop water productivity and water use for sustainable agriculture during extreme weather events in South Africa
Remote sensing crop water productivity and water use for sustainable agriculture during extreme weather events in South Africa Open
The impact of climate variability and extreme weather events on agricultural productivity in arid environments has become a focal point in contemporary research. Monitoring crop water productivity (CWP) is critical and urgently required es…
View article: Using multisource remotely sensed data and cloud computing approaches to map non-native species in the semi-arid savannah rangelands of Mpumalanga, South Africa
Using multisource remotely sensed data and cloud computing approaches to map non-native species in the semi-arid savannah rangelands of Mpumalanga, South Africa Open
Semi-arid savannah rangelands are diverse environments (in terms of species) that play an important role in sustaining biodiversity and providing ecosystem services. However, the emergence of non-native species, as well as bush encroachmen…
View article: Comprehensive analysis of land use and cover dynamics in djibouti using machine learning technique: A multi-temporal assessment from 1990 to 2023
Comprehensive analysis of land use and cover dynamics in djibouti using machine learning technique: A multi-temporal assessment from 1990 to 2023 Open
Understanding land use and land cover (LULC) dynamics in semi-arid regions is vital for unraveling complex environmental processes and resource management. This study delves into the intricate interplay of land patterns and resource dynami…
View article: National-scale spatiotemporal patterns of vegetation fire occurrences using MODIS satellite data
National-scale spatiotemporal patterns of vegetation fire occurrences using MODIS satellite data Open
As the risk of climate change increases, robust fire monitoring methods become critical for fire management purposes. National-scale spatiotemporal patterns of the fires and how they relate to vegetation and environmental conditions are no…
View article: Water hyacinths: Use them or lose them? A holistic approach to a multi-faceted problem
Water hyacinths: Use them or lose them? A holistic approach to a multi-faceted problem Open
Lakes in tropical regions around the world suffer from the infestation of water hyacinth. Its proliferation is attributable to the influx of nutrient-rich waters, as rivers feeding the lakes are polluted with wastewater and run-off of fert…
View article: Assessment of the spatiotemporal dynamics of the hydrological state of non-perennial river systems and identification of flow-contributing areas
Assessment of the spatiotemporal dynamics of the hydrological state of non-perennial river systems and identification of flow-contributing areas Open
Non-perennial rivers (NPRs) have three hydrological states; each state has its importance, function and implication for water resource management. The dynamics of these states have been inadequately assessed and understood. Hence, this stu…