Dr Laura Stewart

Laura's research focuses on the exploitation of satellite sounding data in convective scale weather forecasting.

Laura's areas of expertise include:

  • Infrared sounder retrievals
  • Error modelling in satellite sounding data

Current activities

Laura is a EUMETSAT Research Fellow based at the Met Office. Laura works on investigating the potential of a future geostationary infrared sounder MTG-IRS for improving the analysis of wind and humidity in the convective scale. 

The high temporal and spatial resolution of MTG-IRS data is likely to benefit the provision of information on changes to the fine scale humidity structures present in the atmosphere. An improved understanding of the independent information and error structure of humidity profiles can potentially be used in the generation of high resolution three-dimensional wind analyses from water vapour feature tracking.

Laura's current research involves the use of UKV model fields and the radiative transfer model RTTOV-8 to simulate cloudy observations and the subsequent water vapour retrievals. This work is being performed for the current operational satellite instrument IASI, and the future satellite instrument MTG-IRS. Through comparison of the simulated retrievals with the true model fields, the sensitivity of the instrument and the model fields to fine scale structure can be examined.

Career background

Laura has been a member of the Satellite Applications group since starting at the Met Office in early 2010. Prior to joining the Met Office, Laura completed a PhD in Numerical Weather Prediction at the University of Reading; her thesis title was "Correlated observation errors in data assimilation". As an undergraduate Laura studied Mathematics at the University of Bath, and achieved a first-class MMath with honours in 2005.

Last updated: 8 April 2014