A5073253941- Meteorological Phenomena and Simulations
- Air Traffic Management and Optimization
- Atmospheric and Environmental Gas Dynamics
- Astro and Planetary Science
- Data Management and Algorithms
- Aerospace and Aviation Technology
- Atmospheric aerosols and clouds
- Climate variability and models
- Atmospheric Ozone and Climate
- Electrocatalysts for Energy Conversion
- Air Quality Monitoring and Forecasting
- Chemical Thermodynamics and Molecular Structure
- Risk and Safety Analysis
- Isotope Analysis in Ecology
- Vehicle emissions and performance
- Geophysics and Gravity Measurements
- Remote Sensing and LiDAR Applications
- Ocean Waves and Remote Sensing
- Effects of Radiation Exposure
- Aviation Industry Analysis and Trends
- High-pressure geophysics and materials
- Electrochemical sensors and biosensors
- Mass Spectrometry Techniques and Applications
- Advanced Radiotherapy Techniques
- Cassava research and cyanide
Imperial College London
2014-2025
Met Office
2014-2023
Radiation Oncology Associates
2020
NSF National Center for Atmospheric Research
2018
American Meteorological Society
2018
Seoul National University
2018
The first multimodel study to estimate the predictability of a boreal sudden stratospheric warming (SSW) is performed using five NWP systems. During 2012/13 winter, anomalous upward propagating planetary wave activity was observed toward end December, which followed by rapid deceleration westerly circulation around 2 January 2013, and on 7 2013 zonal-mean zonal wind at 60°N 10 hPa reversed easterly. This dynamical an equatorward shift tropospheric jet stream high pressure anomaly over North...
Macrocycles show high activity for the electrochemical reduction of oxygen in alkaline media. However, even macrocycles with same metal centers and MN4 active site can vary significantly selectivity, to this date, a quantitative insight into cause these staggering differences has not been unambiguously reached. These form fundamental platform, similarly platinum alloys ORR catalyst, unravel properties FeNx catalysts. In manuscript, we present systematic study several macrocycles, varying...
Abstract For the next generation of World Area Forecast System (WAFS), global Graphical Turbulence Guidance (G-GTG) has been developed using numerical weather prediction (NWP) model outputs as an input to compute a set turbulence diagnostics, identifying strong spatial gradients meteorological variables associated with clear-air (CAT) and mountain-wave (MWT). The G-GTG provides atmospheric intensity metric energy dissipation rate (EDR) 1/3 power (m 2/3 s –1 ), which is International Civil...
Abstract As the stratosphere is largely characterized by its ozone abundance, quality of field important for a realistic representation in weather and climate models. While directly affected radiative heating from photodissociation, abundance might also impact troposphere since are dynamically linked. In this paper, we examine potential benefits using data Earth Observing System (EOS) Microwave Limb Sounder (MLS) medium‐extended range tropospheric forecasts current numerical prediction...
ABSTRACT To tackle the ever‐growing demand for air travel, aviation industry has expressed great interest in assessing impact weather uncertainty on flight planning. However, due to opacity of commercial planning systems, there been an absence a suitable research platform which centres could use test and convey advancements numerical prediction (NWP) benefit operational In this paper, simple yet versatile trajectory system that aims bridge gap between NWP is proposed. The proposed based A*,...
ABSTRACT Mountain wave breaking in the lower stratosphere is one of major causes atmospheric turbulence encountered commercial aviation, which turn cause most weather‐related aircraft incidents. In case clear air (CAT), there are no visual clues and pilots reliant on operational forecasts reports from other aircraft. Traditionally mountain waves have been sub‐grid‐scale global numerical weather prediction (NWP) models, but recent developments NWP mean that some forecast centres (e.g. UK Met...
ABSTRACT Traditionally, spaghetti charts and track ellipses are used in track‐based meteorological applications to illustrate the spatial uncertainty of a set paths on map. However, spread is often evaluated by eye, as result, decisions made can be highly subjective. A unit‐less metric based Fréchet distance developed proposed consistent way quantifying applications. The methodology described generic configured for use where measure similarity among tracks required, such tropical storm...
Abstract An emergent consequence of climate change is its potential impacts on transatlantic flight routes and durations, with studies suggesting that future optimal paths will likely lead to decreased (increased) eastbound (westbound) journey times. However, these earlier works all rely a class planning algorithms (based the so‐called ‘shooting method’) are fundamentally different those typically used by aviation industry ‘network method’). To help resolve any ambiguities associated...
<p>Global aviation industry needs are evolving, with increased volumes of traffic, capacity demands and the need to limit environmental impacts travel. Therefore, provision accurate/detailed meteorological information is becoming even more essential for safe efficient management airline airport operations.  Underpinning much this World Area Forecast System (WAFS), provided by London Washington centres, whose capabilities currently undergoing significant upgrades...
Abstract Background and purpose : To introduce a standard linac with true attachment free, rapid arc dose-drop scheme for positioning related dose deviation control based total body irradiation(TBI). Materials/Methods One eight years old girl diagnosed acute lymphocytic leukemia underwent TBI in 2020. Target volumes organs at risk were contoured after CT simulation. Total sixteen ARC four AP-PA from five isocenters designed. A on both sides of adjacent region performed to reduce...
<p>In-flight icing constitutes a major hazard to aviation, and so it is vital be able forecast the risk of accurately. The Met Office one two World Area Forecast Centres (WAFC) routinely produce validate forecasts. existing verification methodology Bowyer Gill (2018) evaluates each WAFC against satellite-derived potential. However, currently full Global data, whereas potential only available during daytime. At night, presence cloud reported, correct rejections false alarms are...