Implementation of 1D+4D‐Var assimilation of precipitation‐affected microwave radiances at ECMWF. I: 1D‐Var

Abstract This paper presents the operational implementation of a 1D+4D‐Var assimilation system of rain‐affected satellite observations at the European Centre for Medium‐Range Weather Forecasts. The first part describes the methodology and performance analysis of the 1D‐Var retrieval scheme in clouds... View More