A5052977443- Climate variability and models
- Meteorological Phenomena and Simulations
- Tropical and Extratropical Cyclones Research
- Climate change impacts on agriculture
- Recycling and Waste Management Techniques
- Microplastics and Plastic Pollution
- Precipitation Measurement and Analysis
- Hydrological Forecasting Using AI
- Hydrology and Drought Analysis
- Urban Heat Island Mitigation
- Cryospheric studies and observations
- Multimodal Machine Learning Applications
- Municipal Solid Waste Management
- Oceanographic and Atmospheric Processes
- Atmospheric and Environmental Gas Dynamics
- Flood Risk Assessment and Management
- Solar Radiation and Photovoltaics
- Advanced Neural Network Applications
- Plant Water Relations and Carbon Dynamics
- Remote Sensing and Land Use
- Rice Cultivation and Yield Improvement
- Environmental remediation with nanomaterials
- Machine Learning and Algorithms
- Thermochemical Biomass Conversion Processes
- Fiber-reinforced polymer composites
West Virginia University
2022-2024
King Abdullah University of Science and Technology
2018-2024
National Institute of Meteorology
2024
Morgantown High School
2024
Patrick Air Force Base
2023
University of Science and Technology
2021
University of Arizona
2017-2018
Universidad Nacional Autónoma de México
2016-2017
We present the Pathways Autoregressive Text-to-Image (Parti) model, which generates high-fidelity photorealistic images and supports content-rich synthesis involving complex compositions world knowledge. Parti treats text-to-image generation as a sequence-to-sequence modeling problem, akin to machine translation, with sequences of image tokens target outputs rather than text in another language. This strategy can naturally tap into rich body prior work on large language models, have seen...
We present a method to formulate algorithm discovery as program search, and apply it discover optimization algorithms for deep neural network training. leverage efficient search techniques explore an infinite sparse space. To bridge the large generalization gap between proxy target tasks, we also introduce selection simplification strategies. Our discovers simple effective algorithm, $\textbf{Lion}$ ($\textit{Evo$\textbf{L}$ved S$\textbf{i}$gn M$\textbf{o}$me$\textbf{n}$tum}$). It is more...
Abstract Long-term changes in North American monsoon (NAM) precipitation intensity the southwestern United States are evaluated through use of convective-permitting model simulations objectively identified severe weather events during “historical past” (1950–70) and “present day” (1991–2010) periods. Severe days on which highest atmospheric instability moisture occur within a long-term regional climate simulation. Simulations event performed with (2.5 km) grid spacing, these compared...
Abstract The Red Sea, home to the second-longest coral reef system in world, is a vital resource for Kingdom of Saudi Arabia. Sea provides 90% Kingdom’s potable water by desalinization, supporting tourism, shipping, aquaculture, and fishing industries, which together contribute about 10%–20% country’s GDP. All these activities, those elsewhere region, critically depend on oceanic atmospheric conditions. At time mega-development projects along coast, global warming, authorities are working...
Abstract In this Pseudo‐global Warming study, potential future changes in the Southeast Asia tropical cyclone (TC) exposure climatology are quantified. One hundred and seventeen landfalling TCs last 20 years simulated with their current climate conditions also Coupled Model Intercomparison Project Phase 6 (CMIP6) ensemble perturbed under SSP2‐4.5 SSP3‐7.0 change scenarios. Our simulations suggest that projected to be 8% more intense at landfall, 2.8% faster have smaller sizes by end of 21st...
Abstract The Kingdom of Saudi Arabia (KSA) is characterized by a desert climate, with rainfall mainly occurring during the cooler months (November–April) and sometimes in conjunction intense extratropical systems that can cause serious damage casualties. Given vast size KSA, there are gaps understanding association between large‐scale atmospheric circulations local organized events, characterizing diversity this association. To address these gaps, we analyse an in‐house 5‐km horizontal grid...
This study examines the climatological and long-term (1980–2019) variations in summer circulation patterns (June–August) over Eastern Mediterranean Middle East (EMME) region, utilizing ERA5 global atmospheric reanalysis data. The climate of EMME is influenced by development several prominent features: (1) a pronounced east-west pressure gradient, resulting from elevated mean sea level eastern (EM) thermal low Arabian Peninsula (AP); (2) significant subsidence spanning EM,...
Maize is an important food and feed crop for smallholder farmers in Vietnam affected by changing growing management conditions under ongoing climate change posing potential production risks the future. This study analyses future maize Northern based on seven main agrometeorological indicators applying indicator software (AGRICLIM) projections one global circulation model with embedded regional two emission pathways (RCP4.5 RCP8.5) from 1951 towards 2100. The results were analyzed four time...
Abstract This study analyses the connection between extreme rainfall events in Jeddah, Saudi Arabia, and synoptic‐scale weather patterns over Arabian Peninsula. Mean follows a decreasing trend; however, number of rainy days has increased. Interestingly, is becoming less frequent but shows an increased intensity. Here we utilize self‐organizing maps (SOMs) to identify most intense synoptic systems causing Jeddah region. Three main that cause heavy during cooler months (November–April) are...
Afforestation and greening initiatives are increasingly considered viable strategies for mitigating climate change, particularly in arid regions. In this study, we assess the impacts of large-scale afforestation Arabian Peninsula (AP). The is represented by replacing sandy bare soil with woody savanna vegetation, assumed to be naturally sustained rainfall, absence overgrazing. Using a 30-year regional model simulation, prescribe within circular area 4.5° radius (approximately 71.9...
Abstract Transient inverted troughs (IVs) are a trigger for severe weather during the North American monsoon (NAM) in southwest contiguous United States (CONUS) and northwest Mexico. These upper-tropospheric disturbances enhance synoptic-scale mesoscale environment organized convection, increasing chances microbursts, straight-line winds, blowing dust, flash flooding. This work considers changes track density climatology of IVs between 1951 2010. tracked as potential vorticity (PV) anomalies...
Abstract The city of Jeddah, Saudi Arabia, is characterized by a hot and arid desert climate. On occasion, however, extreme precipitation events have led to flooding that caused extensive damage human life infrastructure. This study investigates the effect incorporating an urban canopy model land cover when simulating severe weather over Jeddah using Weather Research Forecasting (WRF) Model at convective-permitting scale (1.5-km resolution). Two experiments were conducted for 10 heavy...
Abstract Observations and climate projections suggest a larger increase in tropical cyclone (TC)‐induced rainfall than that can be explained by the Clausius‐Clapeyron relationship of 7% vapor content for each 1°C degree rise temperature. However, these studies using diverse data sources methods over various periods show inconsistencies regarding location this ‐ whether TC inner core or outer regions offer differing explanations reported trends. This study uses Pseudo‐global warming...
This study assesses a Continuous Data Assimilation (CDA) dynamical-downscaling algorithm for enhancing the simulation of Indian summer monsoon (ISM) system. CDA is mathematically rigorous technique that has been recently introduced to constrain large-scale features high-resolution atmospheric models with coarse spatial scale data. It similar spectral nudging but does not require any decomposition scales separation. expected be particularly relevant ISM, which involves various interactions...
Microwave-assisted catalytic upcycling plastic wastes into valuable chemicals is a promising technology to treat wastes. In this study, the of low-density polyethylene (LDPE), polystyrene (PS), and their mixture under microwave (MW) irradiation was explored. comparison conventional thermal conditions, MW heating produced significantly more BTX achieved better conversion due "hotspots" formation over catalyst. also lowered activation energy for pyrolysis pure mixed plastics. For plastics, Ea...
Abstract Effective irrigation planning is crucial for sustainable agricultural development and ecosystem restoration projects in arid regions. With respect to ambitious greening initiatives, Saudi Arabia establishing a national strategy toward more eco-friendly future not only itself but also the broader Middle East region. Thus, comprehensively understanding water cycle region essential identify most suitable target locations afforestation reforestation while considering potential role of...
Abstract The sensitivity of different cumulus physical parameterization schemes for simulating extreme winter precipitation events over the Arabian Peninsula (AP) is investigated using a high‐resolution weather research and forecasting (WRF) model. For winters in 2001–2016, following three are examined: (i) Kain–Fritsch (KF), (ii) Betts–Miller–Janjić (BMJ), (iii) Grell–Freitas (GF). simulation results suggest that AP rainfall best simulated KF, followed by BMJ, terms spatial distribution...
A commonly noted problem in the simulation of warm season convection North American monsoon region has been inability atmospheric models at meso-β scales (10 s to 100 kilometers) simulate organized convection, principally mesoscale convective systems. With use parameterization, high precipitation biases model simulations are typically observed over peaks mountain ranges. To address this issue, Kain–Fritsch (KF) cumulus parameterization scheme modified with new diagnostic equations compute...
An attempt was undertaken to elevate production of aromatic compounds through co-upcycling polystyrene (PS) and low-density polyethylene (LDPE). The plastics samples were upcycled at 400 °C with catalyst H-ZSM-5. Compared single plastic upcycling, PS LDPE demonstrated high advantages: lowered reaction temperature (390 °C), medium rate (-1.35 %/°C), low yield coke (1.62 % or less) enhanced aromatics (42.9-43.5 %). In-situ FTIR results a constant in the 1 : mixed while pure plastics, quickly...
The growth of vegetation in desert areas is expected to cause considerable changes the local climate. Compared bare ground desert, balance different processes related such as reduced albedo and increased evapotranspiration can either warm up or cool down surface Quantifying these essential for impact assessments climate mitigation adaptation measures, especially regions increasingly hit by heat waves Arabian Peninsula. In this respect, analysis situ observations challenging owing limited...