Andrew supports the development, implementation and maintenance of hydro-meteorological nowcasts including precipitation, snowmelt, soil moisture, runoff and river flow.
Andrew's work is largely focused on assisting the development and maintenance of STEPS and MOSES. He manages software upgrades for these models. This involves evaluating and documenting software changes and checking code in and out of the FCM code management system. Andrew managed the migration of MOSES-PDM-RFM from the Nimrod nowcasting and post-processing system to the UKPP system, developed for the 4 km and variable resolution (1.5 km) configurations of the UM. The PDM and RFM were developed by colleagues at CEH.
Currently, Andrew is developing and testing software to generate a high resolution (at least 2 km), ensemble precipitation forecast with a range of several days. This involves blending ensemble precipitation nowcasts, similar to those produced by STEPS, with ensemble NWP precipitation forecasts from the variable (1.5 km) resolution UM and the North Atlantic and European configuration of MOGREPS. Andrew has produced the software design for this ensemble blending algorithm and has coded an initial version of the algorithm in object-oriented C++. The ultimate aim of the work is to improve pluvial and fluvial flood warnings issued by the FFC.
Andrew joined the Met Office in 2004 after graduating from the University of St Andrews with a BSc in Astrophysics. This is his first role within the organisation.