Joël Arnault
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View article: Response of tropical cyclones to global warming: Super Typhoon Usagi in the Western Pacific Ocean
Response of tropical cyclones to global warming: Super Typhoon Usagi in the Western Pacific Ocean Open
View article: Enhanced hydrological modeling with the WRF-Hydro lake–reservoir module at a convection-permitting scale: a case study of the Tana River basin in East Africa
Enhanced hydrological modeling with the WRF-Hydro lake–reservoir module at a convection-permitting scale: a case study of the Tana River basin in East Africa Open
East Africa frequently experiences extreme hydrological events, such as droughts and floods, underscoring the urgent need for improved hydrological simulations to enhance prediction accuracy and mitigate losses. A major challenge lies in t…
View article: Assessing the role of precipitation inputs and overbank flow in hydrological modeling: a case study of the Irrawaddy River Basin in Myanmar using WRF-Hydro
Assessing the role of precipitation inputs and overbank flow in hydrological modeling: a case study of the Irrawaddy River Basin in Myanmar using WRF-Hydro Open
Hydrological models are essential tools for water resource management and for mitigating extreme hydrological events risks. Although they are crucial for flood forecasting, these models often exhibit substantial uncertainties, including in…
View article: Enhanced hydrological modelling with the WRF-Hydro lake/reservoir module at Convection-Permitting scale: a case study of the Tana River basin in East Africa
Enhanced hydrological modelling with the WRF-Hydro lake/reservoir module at Convection-Permitting scale: a case study of the Tana River basin in East Africa Open
East Africa frequently faces extreme weather events like droughts and floods, underscoring the need for improved hydrological simulations to enhance prediction and mitigate losses. One of the main challenges in achieving this is low-qualit…
View article: Potential contribution of land cover change on flood events in the Senegal River basin
Potential contribution of land cover change on flood events in the Senegal River basin Open
The increase in flood events observed in West African countries, and often in specific river basins, can be influenced by several factors, including anthropogenic land use and land-cover changes. However, the potential contribution of land…
View article: Regional climate response to land cover change in tropical West Africa: a numerical sensitivity experiment with ESA land cover data and advanced WRF-Hydro
Regional climate response to land cover change in tropical West Africa: a numerical sensitivity experiment with ESA land cover data and advanced WRF-Hydro Open
The response of regional climate models (RCMs) to different input land cover information is complex and uncertain. Several studies by the regional climate modeling community have investigated the potential of land cover data to help unders…
View article: Afforestation in West Africa: potential benefits and trade-offs on regional climate extremes
Afforestation in West Africa: potential benefits and trade-offs on regional climate extremes Open
West Africa is currently experiencing extensive agricultural intensification associated with rapid population growth. Those anthropogenic land use and land-cover changes (LULCC) can have significant impacts at regional and seasonal scales …
View article: Sensitivity of joint atmospheric-terrestrial water balance simulations to soil representation: Convection-permitting coupled WRF-Hydro simulations for southern Africa
Sensitivity of joint atmospheric-terrestrial water balance simulations to soil representation: Convection-permitting coupled WRF-Hydro simulations for southern Africa Open
View article: Process‐Based Atmosphere‐Hydrology‐Malaria Modeling: Performance for Spatio‐Temporal Malaria Transmission Dynamics in Sub‐Saharan Africa
Process‐Based Atmosphere‐Hydrology‐Malaria Modeling: Performance for Spatio‐Temporal Malaria Transmission Dynamics in Sub‐Saharan Africa Open
With the goal of eradication by 2030, Malaria poses a significant health threat, profoundly influenced by meteorological and hydrological conditions. In support of malaria vector control efforts, we present a high‐resolution, coupled physi…
View article: Comment on hess-2024-95
Comment on hess-2024-95 Open
Abstract. During the Pacific typhoon season of 2023, the Pearl River Delta (PRD) was hit by a series of typhoons, causing unprecedented precipitation as well as fatalities and significant damages. There are indications tha…
View article: A storyline-based approach towards changing typhoon intensities over the Pearl River Delta under future conditions using Pseudo-Global Warming
A storyline-based approach towards changing typhoon intensities over the Pearl River Delta under future conditions using Pseudo-Global Warming Open
During the Pacific typhoon season of 2023, the Pearl River Delta (PRD) was hit by a series of typhoons, causing unprecedented precipitation as well as fatalities and significant damages. There are indications that these events may intensif…
View article: Local biophysical impacts of idealized land-cover and land management changes on climate extremes in the semi-arid West African Savannas
Local biophysical impacts of idealized land-cover and land management changes on climate extremes in the semi-arid West African Savannas Open
The West African savannas region is currently undergoing extensive agricultural intensification due to rapid population growth. Those anthropogenic land cover changes (LCC) can have significant impacts at regional and seasonal scales but a…
View article: Role of infiltration on land–atmosphere feedbacks in Central Europe: WRF-Hydro simulations evaluated with cosmic-ray neutron soil moisture
Role of infiltration on land–atmosphere feedbacks in Central Europe: WRF-Hydro simulations evaluated with cosmic-ray neutron soil moisture Open
The skill of climate models partly relies on their ability to represent land–atmosphere feedbacks in a realistic manner, through the coupling with a land surface model. However, these models often suffer from insufficient or erroneou…
View article: Characterization of Extreme Rainfall and River Discharge over the Senegal River Basin from 1982 to 2021
Characterization of Extreme Rainfall and River Discharge over the Senegal River Basin from 1982 to 2021 Open
Extreme hydroclimate events usually have harmful impacts of human activities and ecosystems. This study aims to assess trends and significant changes in rainfall and river flow over the Senegal River Basin (SRB) and its upper basin during …
View article: Regional water cycle sensitivity to afforestation: synthetic numerical experiments for tropical Africa
Regional water cycle sensitivity to afforestation: synthetic numerical experiments for tropical Africa Open
Afforestation as a climate change mitigation option has been the subject of intense debate and study over the last few decades, particularly in the tropics where agricultural activity is expanding. However, the impact of such landcover cha…
View article: A 20-year satellite-reanalysis-based climatology of extreme precipitation characteristics over the Sinai Peninsula
A 20-year satellite-reanalysis-based climatology of extreme precipitation characteristics over the Sinai Peninsula Open
Extreme precipitation events and associated flash floods caused by synoptic cyclonic systems profoundly impact society and the environment, particularly in arid regions. This study brings forward a satellite-reanalysis-based approach to qu…
View article: Characterization of Extreme Rainfall and River Discharge over the Senegal River Basin from 1982 to 2021
Characterization of Extreme Rainfall and River Discharge over the Senegal River Basin from 1982 to 2021 Open
This study aims to assess trends and significant changes in precipitation and river flow in the Senegal River basin and its upper basin over the period 1982-2021. Eight hydroclimate indicators, namely maximum river discharge (QMAX), standa…
View article: Impact of alternative soil data sources on the uncertainties in simulated land-atmosphere interactions
Impact of alternative soil data sources on the uncertainties in simulated land-atmosphere interactions Open
View article: Acceleration of the hydrological cycle under global warming? An age-weighted regional water tagging approach
Acceleration of the hydrological cycle under global warming? An age-weighted regional water tagging approach Open
Global warming is assumed to accelerate the global water cycle. However, quantification of the acceleration and regional analyses remain open. Accordingly, in this study we address the fundamental hydrological question: Is the water cycle …
View article: Evaluation of MODIS, Landsat 8 and Sentinel-2 Data for Accurate Crop Yield Predictions: A Case Study Using STARFM NDVI in Bavaria, Germany
Evaluation of MODIS, Landsat 8 and Sentinel-2 Data for Accurate Crop Yield Predictions: A Case Study Using STARFM NDVI in Bavaria, Germany Open
The increasing availability and variety of global satellite products and the rapid development of new algorithms has provided great potential to generate a new level of data with different spatial, temporal, and spectral resolutions. Howev…
View article: Impact of STARFM on Crop Yield Predictions: Fusing MODIS with Landsat 5, 7, and 8 NDVIs in Bavaria Germany
Impact of STARFM on Crop Yield Predictions: Fusing MODIS with Landsat 5, 7, and 8 NDVIs in Bavaria Germany Open
Rapid and accurate yield estimates at both field and regional levels remain the goal of sustainable agriculture and food security. Hereby, the identification of consistent and reliable methodologies providing accurate yield predictions is …
View article: WRF with age-weighted water tracers: implementation, application, and new insights into the regionally accelerated atmospheric hydrological cycle under global warming
WRF with age-weighted water tracers: implementation, application, and new insights into the regionally accelerated atmospheric hydrological cycle under global warming Open
Atmospheric water residence time, here defined as time between the original evaporation and the returning of its respective water masses to the land surface as precipitation, is a measure of the speed of the atmospheric hydrological cycle.…
View article: Toward Improved Parameterizations of Reservoir Operation in Ungauged Basins: A Synergistic Framework Coupling Satellite Remote Sensing, Hydrologic Modeling, and Conceptual Operation Schemes
Toward Improved Parameterizations of Reservoir Operation in Ungauged Basins: A Synergistic Framework Coupling Satellite Remote Sensing, Hydrologic Modeling, and Conceptual Operation Schemes Open
Assessments of water and energy security over historical and future periods require hydrologic models that can accurately simulate reservoir operations. However, scare reservoir operation data limits the accuracy of current reservoir repre…
View article: Development of channel transmission loss function for WRF_HYDRO modeling of semi-arid regions: The case of wadi Faria, Palestine
Development of channel transmission loss function for WRF_HYDRO modeling of semi-arid regions: The case of wadi Faria, Palestine Open
In arid and semi-arid regions, the quantitative understanding of the processes of runoff generation and prediction of the streamflow hydrographs and their transmission to the catchment outlet are among the most basic challenges of hydrolog…
View article: Interactions between Climate and Land Cover Change over West Africa
Interactions between Climate and Land Cover Change over West Africa Open
Climate–land interaction over West Africa has often been assessed using climate simulations, although the model-based approach suffers from the limitations of climate models for the region. In this paper, an alternative method based on the…
View article: Integrating random forest and crop modeling improves the crop yield prediction of winter wheat and oil seed rape
Integrating random forest and crop modeling improves the crop yield prediction of winter wheat and oil seed rape Open
The fast and accurate yield estimates with the increasing availability and variety of global satellite products and the rapid development of new algorithms remain a goal for precision agriculture and food security. However, the consistency…
View article: Comment on esd-2022-10
Comment on esd-2022-10 Open
Abstract. Extreme precipitation events and associated flash floods caued by the synoptic cyclonic-systems have profound impacts on society and the environment particularly in dry regions. This study brings forward a satell…
View article: Relationship between climate and land use land cover change over West Africa
Relationship between climate and land use land cover change over West Africa Open
The relationship between climate and land use land cover change over West Africa has often been assessed with climate simulations, although the model-based approach suffers from the limitations of climate models specifically for West Afric…
View article: Comment on esd-2022-10
Comment on esd-2022-10 Open
Abstract. Extreme precipitation events and associated flash floods caued by the synoptic cyclonic-systems have profound impacts on society and the environment particularly in dry regions. This study brings forward a satell…
View article: Model Estimates of China's Terrestrial Water Storage Variation Due To Reservoir Operation
Model Estimates of China's Terrestrial Water Storage Variation Due To Reservoir Operation Open
Understanding the role of reservoirs in the terrestrial water cycle is critical to support the sustainable management of water resources especially for China where reservoirs have been extensively built nationwide. However, this has been a…