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Jeffrey Nii Armah Aryee

Meteorology and Climate Science

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About

Dr. Jeffrey N. A. Aryee is a Senior Lecturer at the Department of Meteorology and Climate Science, Kwame Nkrumah University of Science and Technology (KNUST), Ghana, and a foundational Senior Fellow of the Microsoft AI Economy Institute. His academic journey began with a PhD in Meteorology and Climate Science at KNUST, undertaken through the European Union’s DACCIWA project, where he explored the interactions between aerosols, clouds, and atmospheric dynamics in West Africa.Jeffrey’s research bridges traditional climate science and emerging technologies. He works at the interface of boundary-layer dynamics, atmospheric measurement, and climate variability, while also advancing the use of artificial intelligence and data science in weather and climate applications. This dual focus reflects both a deep respect for physical processes and a commitment to innovation in tools and methods that can transform how climate knowledge is produced and used.His project work reflects this philosophy of blending science with real-world impact. Through ANDeL (Advancing Nowcasting with Deep Learning), he is pioneering the use of deep learning techniques for rainfall nowcasting across West Africa. With RetAIn (Microsoft AI Economy Institute Fellowship), he is contributing to a wider conversation on inclusive AI education and its role in Africa’s climate and development agenda. TechAir is building and validating low-cost air quality sensor networks tailored for African contexts, while EW4Energy strengthens storm and lightning early warning systems to support Ghana’s energy sector. In parallel, he has collaborated on RAGA (Rapid Assessment of Groundwater Availability) which focuses on water security, and TIDEKIT which applies geophysical methods to protect the vulnerable coastline and cultural heritage of Keta. His work also supports the establishment of the Ghana Air Quality Data Hub, a national platform designed to improve air quality monitoring and decision-making. Most recently, he is engaged in the Cumulus project under the Nimbus Consortium, which is developing bespoke AI forecasting systems to support farming communities in West Africa.Jeffrey’s research interests include AI and weather, climate data reconstruction, boundary-layer meteorology, atmospheric measurement techniques, upper atmosphere monitoring, and the socio-economic impacts of climate extremes. He is also interested in the social dimensions of AI uptake, particularly in climate and environmental applications. His work is widely published in international peer-reviewed journals, and he serves as a reviewer for several high-impact titles.Alongside his research, Jeffrey is committed to mentorship and capacity building. He leads PY4CA, a scientific computing team that develops problem-solving tools for climate applications, and continues to support students and young researchers in building careers at the intersection of science, technology, and society. Beyond academia, he maintains a passion for nature, music, and computing, bringing balance to a career dedicated to advancing climate science and its practical impact on communities.

Research Summary

(inferred from publications by AI)

This researcher's work is centered on the study of Earth processes, particularly focusing on precipitation patterns and their implications across various domains. Their research encompasses a broad range of topics, including atmospheric phenomena, hydrological dynamics, land-use changes, and agricultural resilience, all within the context of climate change and its impacts. Key areas of focus include extreme rainfall events, the effects of climate change on water cycles, and the development of methodologies for improving flood management in Ghana. Their work reflects a commitment to advancing understanding of Earth systems and enhancing the ability to predict and mitigate environmental hazards.

Research Themes

All Papers

Variabilities in Rainfall Onset, Cessation and Length of Rainy Season for the Various Agro-Ecological Zones of Ghana(2015)
Assessment of Long-Term Spatio-Temporal Rainfall Variability over Ghana using Wavelet Analysis(2017)
Comparison of Rainy Season Onset, Cessation and Duration for Ghana from RegCM4 and GMet Datasets(2016)
Long-term spatio-temporal variability and change in rainfall over Ghana (1960–2015)(2023)
Quantifying climatic heavy-precipitation-induced floods in West Africa using multiple precipitation indices(2024)
Revisiting The Agro-Climatic Zones Of Ghana: A Re-Classification In Conformity With Climate Change And Variability(2022)
A Half Century Dataset on Etccdi Annual Precipitation Indices for the Northern Savanna Agro-Ecological Zone (Ghana) and the Entire Country(2023)
The evolution of African monsoons and its impacts on precipitation seasonality in the late Cenozoic and future climate change(2023)
Modelling atmospheric behaviour over southern West Africa using RegCM 4.7.1: Case assessment of relative humidity and zonal wind profiles based on the 2016 DACCIWA summertime field campaign(2024)
A half century dataset on ETCCDI annual precipitation indices for the Northern savanna agro-ecological zone (Ghana) and the entire country(2025)
The Dynamics–Aerosol–Chemistry–Cloud Interactions in West Africa Field Campaign: Overview and Research Highlights(2017)
An overview of the diurnal cycle of the atmospheric boundary layer during the West African monsoon season: results from the 2016 observational campaign(2018)
An overview of the diurnal cycle of the atmospheric boundary layer during the West African monsoon season: Results from the 2016 observational campaign(2017)
Low‐Level Cloud Development and Diurnal Cycle in Southern West Africa During the DACCIWA Field Campaign: Case Study of Kumasi Supersite, Ghana(2021)
A meteorological dataset of the West African monsoon during the 2016 DACCIWA campaign(2022)
Low-Level Cloud Development and Diurnal Cycle in southern West Africa during the DACCIWA Field Campaign: Case Study of Kumasi Supersite, Ghana(2020)
Machine learning-based assessment of aerosol optical depth over Ghana, West Africa using MODIS satellite data(2025)
Assessment of urban heat island warming in the greater accra region(2020)
Validation of Satellite and Merged Rainfall Data over Ghana, West Africa(2020)
Development of high spatial resolution rainfall data for Ghana(2017)
Validation of TRMM and FEWS Satellite Rainfall Estimates with Rain Gauge Measurement over Ashanti Region, Ghana(2016)
Verification of satellite and model products against a dense rain gauge network for a severe flooding event in Kumasi, Ghana(2023)
Triggers of inland heavy rainfall inducing convective storms in West Africa : Case study of June, 2021(2024)
Triggers of Inland Heavy Rainfall Inducing Convective Storms in West Africa: Case Study of June, 2021(2024)
Revisiting the agro-climatic zones of Ghana: A re-classification in conformity with climate change and variability(2023)
Estimation of the return periods of maxima rainfall and floods at the Pra River Catchment, Ghana, West Africa using the Gumbel extreme value theory(2021)
Gridded daily rainfall data for Ghana for the period 1960 - 2015: Approach and validation process(2023)
Estimation of planetary boundary layer height from radiosonde profiles over West Africa during the AMMA field campaign: Intercomparison of different methods(2019)
Overview of surface to near-surface atmospheric profiles over selected domain during the QWeCI project(2018)
Environment of severe storm formations over West Africa on the 26‐28 June 2018(2023)
The dynamics of dry and wet monsoon MCS formation over West Africa: Case assessment of February 13, 2018 and June 18, 2018(2022)
Lightning and thunderstorms, the source of severe weather over Ghana, West Africa(2025)
Land use land cover change and intensity analysis of land transformation in and around a moist semi-deciduous forest in Ghana(2024)
Land Use Land Cover Change and Intensity Analysis of Land Transformation in a Moist Semi-Deciduous Forest in Ghana(2023)
Review of machine learning algorithms used in groundwater availability studies in Africa: analysis of geological and climate input variables(2024)
A Systematic Review of Machine Learning Algorithms in Groundwater Level Simulations and Forecasting(2023)
A Review of Geological and Climatic Variables in Groundwater Availability Prediction in Africa: Machine Learning Approaches(2024)
A systematic review of neural network applications for groundwater level prediction(2025)
Machine Learning-Based Modeling of Groundwater Recharge Under Three Climate Change Scenarios in the Densu Basin of Ghana, West Africa(2025)
Bias-corrected NASA data for aridity index estimation over tropical climates in Ghana, West Africa(2023)
West African Monsoon Dynamics and Its Control on the Stable Oxygen Isotopic Composition of Precipitation in the Late Cenozoic(2024)
West African Monsoon dynamics and its control on stable oxygen isotopic composition of precipitation in the Late Cenozoic(2024)
Groundwater Exploration Methods in West Africa: A Review.(2024)
The Leeds Africa Climate Hackathon – experiences of running a hackathon and highlights of results(2022)
Empowering the Next-Generation Climate Scientists: Insights from the 2023 Forecasters’ WEB (ForWEB) Exchange Program/Hackathon at KNUST, Ghana(2024)
Machine-Learning Approaches for Assessing Aerosol Optical Depth (AOD) in Ghana, West Africa(2024)
A Half Century Dataset on ETCCDI Annual Precipitation Indices for the Northern Savanna Agro-ecological Zone (Ghana) and the entire Country(2024)
Prediction of rainfall response to the 21st-century climate change in Ghana using machine learning empirical statistical downscaling(2023)
Utilizing Machine Learning Techniques to Enhance Climate-Crop Yield Nexus in the Akyemansa District of Ghana(2025)
HIGH-IMPACT WEATHER (HIW) FORECASTING IN GHANA: CHALLENGES AND PROSPECTS OF THE NOWCASTING SATELLITE FACILITY (NWCSAF) FOR IMPROVED EARLY WARNING AND DECISION-MAKING(2022)
From: Godfred Abbey Torsah“Frequency and Characteristics of Extreme Rainfall and Flood Events in the Ashanti Region, Ghana"(2025)
Nocturnal boundary layer observations in Kumasi during the DACCIWA field campaign(2017)
An Assessment of the Accuracy of Wind Speeds from Selected Analyses and Reanalyses Datasets Downscaled with the Weather Research and Forecasting Model(2023)
An assessment of the accuracy of wind speeds from selected Analyses and Reanalyses datasets downscaled with the Weather Research and Forecasting model for Coastal Ghana(2024)
GROUNDWATER POTENTIAL MAPPING OF THE CENTRAL REGION USING INTEGRATED GEOLOGICAL AND GEOPHYSICAL METHODS(2024)
Empowering the next‐generation climate scientists: insights from the 2023 Forecasters' <scp>WEB</scp> exchange program/hackathon at <scp>KNUST</scp>, Ghana(2024)
Trends and Spatial Patterns of Sorghum and Millet Production in the Northern Savannah Agro-climatic Zone of Ghana; A statistical Appraisal(2025)
A New Workflow for Estimating Groundwater Recharge in Data-Scarce Environments.(2025)
Shoreline change detection along the eastern coast of Ghana: leveraging GIS and advanced remote sensing techniques(2025)

Collaboration Network

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About This Profile

This profile is generated from publicly available publication metadata and is intended for research discovery purposes. Themes, summaries, and trajectories are inferred computationally and may not capture the full scope of the lecturer's work. For authoritative information, please refer to the official KNUST profile.