Dr Jacob Cheung
Jacob Cheung is an aviation applied scientist. He studies the sensitivity of flight trajectory predictions on model resolution and uncertainties in weather forecasts.
Jacob is currently working on the IMET project, which is part of the SESAR programme. The aim of IMET is to improve flight trajectory predictions by incorporating uncertainty information from ensemble weather forecasts.
While ensemble forecasting has proved to be an effective way in quantifying uncertainties, such uncertainty information is underused in air traffic management (ATM) applications. Without the need of a breakthrough in current modelling/observation techniques, it is proposed that incorporation of uncertainty information will benefit trajectory prediction (TP) of aircrafts.
Jacob's role is to develop an ensemble TP system based on the Met Office Global and Regional Ensemble Prediction System (MOGREPS). With the new TP system, airspace capacity will be better estimated and en-route conflicts will be reduced. In addition, airspace users will also be able to choose from a selection of optimised routes rather than a fixed one.
Together with Météo-France, Jacob is also working on WP11.2 of the SESAR programme, which aims to study the sensitivity of TP to spatial and temporal resolution of deterministic weather forecasts.
Jacob originally joined the Met Office as a visiting scientist, studying the impact of the representation of stratospheric ozone to numerical weather prediction (NWP) systems. Prior to that, Jacob completed a PhD in atmospheric physics in the Space and Atmospheric Physics Group at Imperial College London. His PhD involved studying stratosphere-troposphere interactions in an idealised aquaplanet model.