A5053834532- Climate variability and models
- Meteorological Phenomena and Simulations
- Hydrology and Watershed Management Studies
- Flood Risk Assessment and Management
- Tropical and Extratropical Cyclones Research
- Geophysics and Gravity Measurements
- Plant Water Relations and Carbon Dynamics
- Hydrological Forecasting Using AI
- Precipitation Measurement and Analysis
- Hydrology and Drought Analysis
- Soil Moisture and Remote Sensing
- Climate change impacts on agriculture
- Water resources management and optimization
- Ocean Waves and Remote Sensing
- Atmospheric Ozone and Climate
- Water-Energy-Food Nexus Studies
- Remote Sensing in Agriculture
- Oceanographic and Atmospheric Processes
- Aeolian processes and effects
- Groundwater and Isotope Geochemistry
- Ionosphere and magnetosphere dynamics
- Atmospheric and Environmental Gas Dynamics
- Environmental Monitoring and Data Management
- Leaf Properties and Growth Measurement
- Geological formations and processes
University of Augsburg
2015-2024
Karlsruhe Institute of Technology
2015-2024
Norsk Hydro (Germany)
2024
Garmisch-Partenkirchen Medical Center
2021-2023
Kwame Nkrumah University of Science and Technology
2022
University of Energy and Natural Resources
2022
Swedish Institute of Space Physics
2012-2014
Université de Toulouse
2009-2011
Centre National de la Recherche Scientifique
2009-2011
Laboratoire d'Aérologie
2007-2010
Abstract The analysis of land–atmosphere feedbacks requires detailed representation land processes in atmospheric models. focus here is on runoff–infiltration partitioning and resolved overland flow. In the standard version WRF, described as a purely vertical process. WRF-Hydro, runoff enhanced with lateral water flows. study region Sissili catchment (12 800 km2) West Africa, period from March 2003 to February 2004. WRF setup includes an outer inner domain at 10- 2-km resolution covering...
Abstract Lateral terrestrial water flow is usually not considered in regional climate modeling. This study focuses on the impact of increased hydrological model complexity for description land‐atmosphere interactions a complex terrain region. For this purpose, we apply Weather Research and Forecasting (WRF) with its modeling extension package WRF‐Hydro case Heihe River Basin convection permitting atmospheric resolution (3 km). The (143,200 km 2 ) an arid‐semiarid inland river basin...
Abstract Understanding the role of reservoirs in terrestrial water cycle is critical to support sustainable management resources especially for China where have been extensively built nationwide. However, this has a scientific challenge due limited availability continuous, long‐term reservoir operation records at large scales, and process‐based modeling tool accurately depict as part still lacking. Here, we develop continental‐scale land surface‐hydrologic model over mainland by explicitly...
The fast and accurate yield estimates with the increasing availability variety of global satellite products rapid development new algorithms remain a goal for precision agriculture food security. However, consistency reliability suitable methodologies that provide crop outcomes still need to be explored. study investigates coupling modeling machine learning (ML) improve prediction winter wheat (WW) oil seed rape (OSR) provides examples Free State Bavaria (70,550 km 2 ), Germany, in 2019....
Abstract Recent developments in hydrometeorological modeling aim toward a more sophisticated treatment of terrestrial hydrologic processes. The objective this study is to investigate the role lateral water flows on regional atmospheric and cycle humid region Central Europe. This accomplished by evaluating model results from both standard Weather Research Forecasting (WRF) hydrologically enhanced version WRF‐Hydro, which allows for comprehensive process description interdependencies between...
Water resources are a major source of economic development for most West African (WA) countries. There is, however inadequate information on these the purposes planning, decision-making and management. This paper explores potential using state art hydrological model (WRF-Hydro) in fully coupled (i.e. land surface hydrology-atmosphere) mode to assess water resources, particularly Tono basin Ghana. The WRF-Hydro is an enhanced version Weather Research Forecasting (WRF) which allows simulating...
Abstract The study investigates how the rising global temperature will affect spatial pattern of rainfall and consequently drought in West Africa. precipitation potential evapotranspiration variables that are obtained from Rossby Centre regional atmospheric model (RCA4) driven by ten (10) climate models under RCP8.5 scenario were used. data Coordinated Regional Climate Downscaling Experiment (CORDEX) analyzed at four specific warming levels (GWLs) (i.e., 1.5 °C, 2.0 2.5 3.0 °C) above...
The discharge of the transboundary Komadugu-Yobe Basin, Lake Chad Area, West Africa is calibrated using multi-objective optimization techniques. GR5J hydrological model parameters are six methods i.e. Local Optimization-Multi Start (LOMS), Differential Evolution (DE), Multi-objective Particle Swarm Optimization (MPSO), Memetic Algorithm with Search Chains (MALS), Shuffled Complex Evolution-Rosenbrock's function (SCE-R), and Bayesian Markov Chain Monte Carlo (MCMC) approach. Three combined...
Abstract. The land surface and the atmospheric boundary layer are closely intertwined with respect to exchange of water, trace gases, energy. Nonlinear feedback scale-dependent mechanisms obvious by observations theories. Modeling instead is often narrowed single compartments terrestrial system or bound traditional viewpoints definite scientific disciplines. Coupled hydrometeorological modeling systems attempt overcome these limitations achieve a better integration processes relevant for...
Abstract The interactions between the atmosphere and land surface are characterized by complex, non‐linear processes on varying time scales. Noah‐MP is a medium complexity land‐surface model (LSM), which was recently selected as new default LSM for hydrologically enhanced Weather Research Forecasting modelling system (WRF‐Hydro). Compared to its predecessor, several parameterizations were considerably improved ones added, inter alia more sophisticated groundwater descriptions, aim replace...
Abstract Assessments of water and energy security over historical future periods require hydrologic models that can accurately simulate reservoir operations. However, scare operation data limits the accuracy current representations in simulating behaviors. Furthermore, reliability these under changing inflow regimes remains unclear, which makes their application for long planning horizons questionable. To this end, we propose a synergistic framework to predict release, storage, hydropower...
ABSTRACT Regional precipitation recycling is the measure of contribution local evaporation E to precipitation. This study provides a set two methods developed in Weather Research and Forecasting WRF model system for investigating regional mechanisms: (1) tracking tagged atmospheric water species originating from source region, ie E‐tagging, (2) three‐dimensional budgets total species. These are used quantify effect return flow nonwell vertical mixing neglected computation bulk ratio. The...
Abstract It is well accepted that summer precipitation can be altered by soil moisture condition. Coupled land surface – atmospheric models have been routinely used to quantify feedback processes. However, most of the (LSMs) assume a vertical water transport and neglect lateral terrestrial flow at in subsurface, which potentially reduces realism simulated feedback. In this study, contribution assessed two different climatic regions, Europe West Africa, for period June–September 2008. A...
The increasing availability and variety of global satellite products the rapid development new algorithms has provided great potential to generate a level data with different spatial, temporal, spectral resolutions. However, ability these synthetic spatiotemporal datasets accurately map monitor our planet on field or regional scale remains underexplored. This study aimed support future research efforts in estimating crop yields by identifying optimal spatial (10 m, 30 250 m) temporal (8 16...
Abstract Land use and land cover change (LUCC) can influence the regional atmospheric water budget. In this study, Weather Research Forecasting model embedded with evapotranspiration (ET)‐tagging (WRF‐tagging) is used to investigate pathways of ET as well where what extent returns precipitation (P) in agro‐pastoral ecotone northern China (APENC). First, we updated default vegetation indices WRF‐tagging high‐resolution real‐time datasets. modeling reproduces spatial distribution P reasonably...
Regional weather and climate models play a crucial role in understanding representing the regional water cycle, yet accuracy of soil data significantly affects their reliability.In this study, we employ fully coupled Weather Research Forecasting Hydrological Modeling system (WRF-Hydro) to assess how hydrophysical properties influence land-atmosphere coupling cycle over southern Africa region.We utilize four widely-used global datasets, including default for model from Food Agriculture...
The Blue Nile Basin, shared by Ethiopia and Sudan, is a region of significant agricultural importance, supporting the livelihoods millions who rely on its resources for farming. However, this area faces critical challenges linked to climate change, including rising temperatures changes in rainfall patterns, which lead increased crop yield variability. These factors have unpredictability farming, making it difficult farmers plan planting, irrigation, harvesting schedules effectively....
Climate change has significant impacts on water resources, making the study of hydrological cycle alterations essential for understanding regional climate dynamics. Hydrological models are crucial tools quantifying these changes and assessing their implications.The Weather Research Forecasting Model (WRF-Hydro), is widely used to simulate processes. This evaluates performance an enhanced version WRF-Hydro, incorporating overbank flow module, in simulating runoff Myanmar region from 2010...
The skill of regional climate models partly relies on their ability to represent land–atmosphere feedbacks in a realistic manner, through the coupling with land surface model. However, these often suffer from insufficient or erroneous information soil hydraulic parameters. In this study, fully coupled model WRF-Hydro driven ERA5 reanalysis is employed reproduce atmospheric conditions over Central Europe horizontal resolution 4 km for period 2017–2020. Simulated moisture...