Long term latitudinal variation of minimum Outgoing Longwave Radiation over South East Asia

Abstract

Ten years of latitudinal variation of minimum Outgoing Longwave Radiation (OLR) over South East Asia was examined by using weekly OLR data from National Oceanic and Atmospheric Administration (NOAA) polar-orbiting satellites. The study was carried out using data collected from January 2000 to December 2010 which covered a region from longitudes 95°E-110°E; latitudes 20°N-20°S. Fourier function fitting was used to show the annual propagation of minimum OLR and created a new model of latitudinal variation of minimum OLR. The created model can be used to examine the latitude where minimum OLR occur.