Essam Heggy
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View article: Seawater intrusions for coastal aquifers are increasingly dominated by anthropogenic drivers in the Southern Mediterranean Basin
Seawater intrusions for coastal aquifers are increasingly dominated by anthropogenic drivers in the Southern Mediterranean Basin Open
View article: Scour depth estimation using standalone metaheuristic algorithms and their combinations with CatBoost
Scour depth estimation using standalone metaheuristic algorithms and their combinations with CatBoost Open
View article: Quantitative subsurface characterization illuminates the origin of the Quaternary Mississippi River Valley alluvial aquifer
Quantitative subsurface characterization illuminates the origin of the Quaternary Mississippi River Valley alluvial aquifer Open
The Mississippi River Valley alluvial aquifer (MRVA) is vital to U.S. food security and global agricultural supply. However, quantitative understanding of its Quaternary origin, architecture, and hydrologic function remains incomplete. Her…
View article: Measuring soil moisture change and surface erosion from sparse rainstorms in hyper-arid terrains
Measuring soil moisture change and surface erosion from sparse rainstorms in hyper-arid terrains Open
Soil moisture change and surface erosion provide unique insight into the evolution of desert ecohydrology and geomorphology in hyper-arid areas under increasing hydroclimatic extremes. However, the spatial and temporal distributions of the…
View article: River total dissolved gas prediction using a hybrid greedy-stepwise feature selection and bidirectional long short-term memory model
River total dissolved gas prediction using a hybrid greedy-stepwise feature selection and bidirectional long short-term memory model Open
The supersaturation of total dissolved gas (TDG) in rivers serves as a critical indicator of water quality downstream of high dams. This study models TDG levels at two monitoring stations in the Columbia and Snake River Basins (USA), where…
View article: Evaluation and prediction of the effects of planetary orbital variations to earth’s temperature changes
Evaluation and prediction of the effects of planetary orbital variations to earth’s temperature changes Open
The influence of planetary orbital changes on Earth’s temperature has been poorly quantified and subject to speculation. Here, we delineated the effects of greenhouse gases and planetary orbital changes on Earth’s temperature and forecaste…
View article: Soaring Building Collapses in Southern Mediterranean Coasts: Hydroclimatic Drivers & Adaptive Landscape Mitigations
Soaring Building Collapses in Southern Mediterranean Coasts: Hydroclimatic Drivers & Adaptive Landscape Mitigations Open
The low‐lying, arid coastal regions of the Southern Mediterranean Basin, extending over 4,600 km, face daunting sea level rise and hydroclimatic changes due to shifting weather patterns. The impact of these factors on coastal urban buildin…
View article: Soil erosion susceptibility maps and raster dataset for the hydrological basins of North Africa
Soil erosion susceptibility maps and raster dataset for the hydrological basins of North Africa Open
View article: Evaluation and prediction of the Effects of Planetary Orbital Variations to Earth’s Temperature Changes
Evaluation and prediction of the Effects of Planetary Orbital Variations to Earth’s Temperature Changes Open
Existing climate studies mainly assessed the effect of greenhouse gases and aerosols, among other forcings on Earth’s temperature. None of them has not evaluated the effect of the planetary orbital changes on Earth’s temperature. Here, we …
View article: Grand Ethiopian Renaissance Dam can generate sustainable hydropower while minimizing downstream water deficit during prolonged droughts
Grand Ethiopian Renaissance Dam can generate sustainable hydropower while minimizing downstream water deficit during prolonged droughts Open
Optimizing hydropower generation from the Nile upstream mega-dams during prolonged droughts while minimizing the downstream water deficit is the cornerstone in resolving the ongoing major water conflict in the Eastern Nile River Basin. A d…
View article: Predicting equilibrium scour depth around non-circular bridge piers with shallow foundations using hybrid explainable machine learning methods
Predicting equilibrium scour depth around non-circular bridge piers with shallow foundations using hybrid explainable machine learning methods Open
Scouring around bridge piers is a critical concern, as the risk of bridge failures poses significant economic and safety threats to the public. Traditional models often struggle to accurately estimate the equilibrium scour depth (deq) at b…
View article: Daily runoff forecasting using novel optimized machine learning methods
Daily runoff forecasting using novel optimized machine learning methods Open
Accurate runoff forecasting is crucial for effective water resource management, yet existing models often face challenges due to the complexity of hydrological systems. This study addresses these challenges by introducing a novel bio-inspi…
View article: Nubian aquifer linkage to the High Aswan Dam Reservoir: Initial assessments of processes and challenges
Nubian aquifer linkage to the High Aswan Dam Reservoir: Initial assessments of processes and challenges Open
View article: Growing soil erosion risks and their role in modulating catastrophic floods in North Africa
Growing soil erosion risks and their role in modulating catastrophic floods in North Africa Open
Intensifying hydroclimatic changes in North Africa are causing unprecedented floods, droughts, and land degradation patterns that are increasingly associated with human casualties, socioeconomic instabilities, and outflow migrations. These…
View article: Assessing flash flood erosion following storm Daniel in Libya
Assessing flash flood erosion following storm Daniel in Libya Open
View article: Multi-decadal groundwater observations reveal surprisingly stable levels in southwestern Europe
Multi-decadal groundwater observations reveal surprisingly stable levels in southwestern Europe Open
Climate change and human activity are leading to water scarcity in southwestern Europe. Groundwater use is thought to be unsustainable in the region, yet regional assessments using measured data are missing. Here, we evaluate long-term tre…
View article: Shoreline retreat and beach nourishment are projected to increase in Southern California
Shoreline retreat and beach nourishment are projected to increase in Southern California Open
Sandy beaches in Southern California are experiencing rising coastal erosion due to changes in precipitation patterns and urban growth. As a result, beach nourishment is necessary for mitigation. In our study, we forecast the rates of shor…
View article: Adaptive Coastal Transformation to Mitigate the Increasing Risks of Building Collapses in Low-Lying Littoral Cities in North Africa
Adaptive Coastal Transformation to Mitigate the Increasing Risks of Building Collapses in Low-Lying Littoral Cities in North Africa Open
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View article: Soaring Building Collapses in Southern Mediterranean Coasts: Hydroclimatic Drivers & Adaptive Landscape Mitigations
Soaring Building Collapses in Southern Mediterranean Coasts: Hydroclimatic Drivers & Adaptive Landscape Mitigations Open
The low-lying, arid coastal regions of the Southern Mediterranean basin, extending over 4600 km, face daunting sea level rise and hydroclimatic changes due to shifting weather patterns. The impacts of the above on coastal urban buildings a…
View article: Resolving Mega-Dams Energy-Water Nexus in the Eastern Nile Basin During Prolonged Droughts
Resolving Mega-Dams Energy-Water Nexus in the Eastern Nile Basin During Prolonged Droughts Open
Optimizing hydropower generation from mega-dams during prolonged droughts while minimizing downstream water deficits is decisive to resolving the ongoing major conflict on transboundary river management in the highly populous Eastern Nile …
View article: On the reachability and genesis of water ice on the Moon
On the reachability and genesis of water ice on the Moon Open
Understanding the reachability of water ice by future in-situ experiments near the lunar poles is crucial for supporting growing exploration plans and constraining the uncertainties on its genesis and distribution. To achieve this objectiv…
View article: On the Growing Socioeconomic Vulnerability of Southern Mediterranean Coastal Lagoons
On the Growing Socioeconomic Vulnerability of Southern Mediterranean Coastal Lagoons Open
Due to pronounced hydroclimatic fluctuations and rapid urban growth, coastal lagoonal systems in the Southern Mediterranean semi-arid areas undergo pronounced shoreline retreats and increased coastal floodings. The socioeconomic impacts of…
View article: On the drivers, forecasts, and uncertainties of relative sea level rise in the Eastern Arabian Peninsula: A review
On the drivers, forecasts, and uncertainties of relative sea level rise in the Eastern Arabian Peninsula: A review Open
View article: Airborne Sounding Radar for Desert Subsurface Exploration of Aquifers: Desert-SEA: Mission concept study [Space Agencies]
Airborne Sounding Radar for Desert Subsurface Exploration of Aquifers: Desert-SEA: Mission concept study [Space Agencies] Open
Shallow aquifers are the largest freshwater bodies in the North African Sahara and the Arabian Peninsula. Their groundwater dynamics and response to climatic variability and anthropogenic discharge remain largely unquantified due to the ab…
View article: Anzali Wetland Crisis: Unraveling the Decline of Iran's Ecological Gem
Anzali Wetland Crisis: Unraveling the Decline of Iran's Ecological Gem Open
The wetland loss rate in Iran is faster than the global average. Comprehending the shrinkage rate in Iranian wetlands and identifying the underlying drivers of these changes is essential for safeguarding their ecosystems' health and servic…
View article: On the Potential of Orbital VHF Sounding Radars to Locate Shallow Aquifers in Arid Areas Using Reflectometry
On the Potential of Orbital VHF Sounding Radars to Locate Shallow Aquifers in Arid Areas Using Reflectometry Open
View article: Anzali Wetland Crisis: Unraveling the Decline of Iran's Ecological Gem
Anzali Wetland Crisis: Unraveling the Decline of Iran's Ecological Gem Open
Anzali Wetland Crisis: Unraveling the Decline of Iran's Ecological Gem M. Mahdian1, R. Noori2,3,*, M.M. Salamattalab1, E. Heggy4,5, S.M. Bateni6, A. Nohegar2, M. Hosseinzadeh1, S.M. Siadatmousavi1, M.R. Fadaei7, S. Abolfathi81School of Civ…
View article: Anzali Wetland Crisis: Unraveling the Decline of Iran's Ecological Gem
Anzali Wetland Crisis: Unraveling the Decline of Iran's Ecological Gem Open
Anzali Wetland Crisis: Unraveling the Decline of Iran's Ecological Gem M. Mahdian1, R. Noori2,3,*, M.M. Salamattalab1, E. Heggy4,5, S.M. Bateni6, A. Nohegar2, M. Hosseinzadeh1, S.M. Siadatmousavi1, M.R. Fadaei7, S. Abolfathi81School of Civ…
View article: Examining the Accuracy of Using a Single Short-Term Historical Flow Period to Assess the Nile’s Downstream Water Deficit from GERD Filling: A Technical Note
Examining the Accuracy of Using a Single Short-Term Historical Flow Period to Assess the Nile’s Downstream Water Deficit from GERD Filling: A Technical Note Open
View article: Decline in Iran’s groundwater recharge
Decline in Iran’s groundwater recharge Open