Gift Dumedah

ORCID: 0000-0002-1572-8104
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About
Contact & Profiles
Research Areas
  • Hydrology and Watershed Management Studies
  • Soil Moisture and Remote Sensing
  • Urban Transport and Accessibility
  • Hydrological Forecasting Using AI
  • Climate change and permafrost
  • Meteorological Phenomena and Simulations
  • Transportation Planning and Optimization
  • Air Quality and Health Impacts
  • Human Mobility and Location-Based Analysis
  • Flood Risk Assessment and Management
  • Water resources management and optimization
  • Vehicle emissions and performance
  • Cryospheric studies and observations
  • Geographic Information Systems Studies
  • Precipitation Measurement and Analysis
  • Urban and Freight Transport Logistics
  • Plant Water Relations and Carbon Dynamics
  • Urban and Rural Development Challenges
  • Rough Sets and Fuzzy Logic
  • Climate variability and models
  • Groundwater and Watershed Analysis
  • Smart Parking Systems Research
  • Land Use and Ecosystem Services
  • Air Quality Monitoring and Forecasting
  • Soil and Unsaturated Flow

Kwame Nkrumah University of Science and Technology
2017-2024

Kwame Nkrumah University
2019-2022

Monash University
2012-2015

McMaster University
2011-2012

University of Guelph
2007-2012

Australian Regenerative Medicine Institute
2012

Soil moisture retrievals, delivered as a CATDS (Centre Aval de Traitement des Données SMOS) Level-3 product of the Moisture and Ocean Salinity (SMOS) mission, form an important information source, particularly for updating land surface models. However, coarse resolution SMOS requires additional treatment if it is to be used in applications at higher resolutions. Furthermore, remotely sensed soil often does not reflect climatology predictions, bias between model predictions observations needs...

10.1109/tgrs.2014.2378913 article EN IEEE Transactions on Geoscience and Remote Sensing 2015-01-08

Operation cost of public transport has been universally recognized as a vital consideration in its implementation, operation and management worldwide. The structure is even more complex Sub-Saharan Africa (SSA), where the system dominated by paratransit, which largely characterized private sector that owns, operates, maintains, manages their vehicles separately. There limited knowledge paratransit structure, extent to they vary mode, use fare-setting design regulatory policies. Accordingly,...

10.5539/jsd.v18n2p100 article EN Journal of Sustainable Development 2025-03-26

The perception and behavior of the public is key in reducing Traffic-related air pollution health burdens which has become an increasingly alarming problem many cities across globe. study assessed about vehicle traffic emissions hazard associated with them Lagos, Nigeria using structured questionnaires. Multivariate statistical analysis structural equation modeling were performed to determine factors that participant's risks it presents. findings revealed majority (78.9%) respondents aware...

10.1016/j.heliyon.2023.e15712 article EN cc-by-nc-nd Heliyon 2023-04-26

Abstract The Soil Moisture Ocean Salinity (SMOS) satellite mission routinely provides global multiangular observations of brightness temperature TB at both horizontal and vertical polarization with a 3-day repeat period. assimilation such data into land surface model (LSM) may improve the skill operational flood forecasts through an improved estimation soil moisture SM. To accommodate for direct SMOS data, LSM needs to be coupled radiative transfer (RTM), serving as forward operator...

10.1175/jhm-d-14-0052.1 article EN Journal of Hydrometeorology 2015-02-24

Emissions from vehicular traffic are one of the key drivers urban environmental air pollution, degrading ambient quality in many African cities and across globe. This study sought to assess impact mobility measures on emission levels pollutants vehicle exhaust Lagos, Nigeria. Traffic flow mix were collected daily during morning, afternoon, evening peak periods along selected arterial two-lane collector roadways. Simultaneously, five (5) emissions observed at distinct monitoring stations...

10.1016/j.sciaf.2023.e01822 article EN cc-by Scientific African 2023-08-06

The study delves into how vehicle engine characteristics impact the release of air pollutants from various fleets in Lagos, Nigeria. It involved direct measurement emissions exhaust pipes 88 vehicles using gas analyzers. encompassed motorcycles, tricycles, private cars, minibuses, large buses, and trucks. A statistical analysis was conducted on carbon monoxide (CO) nitrogen oxide (NOx) to develop a model equation based type, age, purchase status. Results indicate that personal cars minibuses...

10.1080/21650020.2024.2319328 article EN cc-by Urban Planning and Transport Research 2024-02-18

Abstract This study has applied the Nondominated Sorting Genetic Algorithm II (NSGA-II) in a two-step assimilation procedure to jointly assimilate brightness temperature into radiative transfer model and soil moisture land surface model. The first generates time series of by assimilating from Advanced Microwave Scanning Radiometer for Earth Observing System (AMSR-E) Land Parameter Retrieval Model (LPRM). second assimilated LPRM Canadian Surface Scheme (CLASS). Note that was generated merging...

10.1175/jhm-d-10-05029.1 article EN other-oa Journal of Hydrometeorology 2011-04-07
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