Title :
Retrieval of mesoscale atmospheric motion vectors using COMS images at KMA/NIMR
Author :
Somyoung Kim ; Mi-Lim Ou
Author_Institution :
Nat. Inst. of Meteorol. Res., Korea Meteorol. Adm., Seoul, South Korea
Abstract :
National Institute of Meteorological Research at Korea Meteorological Administration (KMA/NIMR) has developed a mesoscale atmospheric motion vector (AMV) retrieval algorithm from Communication, Ocean and Meteorological Satellite (COMS) which is the first Korean geostationary satellite located in 128.2°E. The mesoscale AMVs retrieved from three images of 1 km resolution visible (0.67 μm). To filter high quality vectors from COMS mesoscale AMVs, the threshold values of quality indicator (QI) and expected error (EE) are investigated. The accuracy of COMS mesoscale AMVs compared with radiosonde wind is in the reasonable range when consider the accuracy of NWCSAF HRW. This result suggeststhat COMS mesoscale AMVs could utilize having quality.
Keywords :
atmospheric movements; atmospheric techniques; geophysical signal processing; radiosondes; COMS images; KMA NIMR; Korean geostationary satellite; expected error; mesoscale AMV retrieval; mesoscale atmospheric motion vectors retrieval; quality indicator; radiosonde wind; threshold value; Accuracy; Image resolution; Quality control; Satellite broadcasting; Satellites; Vectors; Wind; Atmospheric motion vector (AMV); COMS; high resolution visible channel; mesoscale;
Conference_Titel :
Geoscience and Remote Sensing Symposium (IGARSS), 2013 IEEE International
Conference_Location :
Melbourne, VIC
Print_ISBN :
978-1-4799-1114-1
DOI :
10.1109/IGARSS.2013.6721217
