Algorithm Theoretical Basis Document for “High Resolution Winds” (HRW - PGE09 v4.0)

Abstract

This document is the Algorithm Theoretical Basis Document for the HRW product: the component of the SAFNWC/MSG software package for the calculation of High Resolution Winds (HRW), using up to seven MSG/SEVIRI channels: HRVIS (High Resolution Visible), VIS06 and VIS08 (Visible 0.6 mm and 0.8 mm), WV062 and WV073 (Water vapour 6.2 mm and 7.3 mm), IR108 and IR120 (Infrared 10.8 mm and 12.0 mm). It describes the HRW product objectives, the scientific algorithm, the needed input data and the resulting output. It also provides basic information on the algorithm implementation.