Third AMV Intercomparison Study

Abstract

This study is a continuation and update of the previous “2014 AMV Intercomparison study”, presented in the 12th International Winds Workshop in Copenhagen in 2014. In this continuation, Atmospheric Motion Vectors (AMVs) calculated with Japan Meteorological Agency’s Himawari-8 satellite data are compared, considering two different input datasets with two different image triplets for 21 July 2016. Image data are equivalent to those used by the “International Cloud Working Group (ICWG) Cloud Intercomparison study”, to improve synergies between both studies. The different centers use a prescribed configuration and their own configuration for the AMV production with these datasets. Six different institutions participated in the study (CPTEC/INPE, EUMETSAT, JMA, KMA, NOAA and NWCSAF). This paper is a summary of the full “AMV Intercomparison Technical Report”, which can be found at: http://www.nwcsaf.org/aemetRest/downloadAttachment/5284. The study has been updated in November 2018 with two new datasets from EUMETSAT and KMA, which correct two issues related with the “Common Quality Index (QIC)” and the “Height assignment” respectively.