Detection of upwelling using modis image and triton buoy in the North Papua Waters

Upwelling is closely associated with the spatial distribution of fish biomass. However, this phenomenon is often ignoreddue to misinterpretation that is simply using sea surface temperature (SST) to analyse deep fish biomass. Upwelling can bedetected by analysing distribution of sea surface (SST) and vertical temperature at the various depths. One of the methods isthe use of MODIS (Moderate Resolution Imaging Spectroradiometer) image and TRITON buoy (Triangle Trans-Ocean buoyNetwork) as in-situ data. This research aimed to observe the correlation between SST MODIS and TRITON buoy and to analyse sea vertical temperature in order to investigate the upwelling in the North Papua Waters. Descriptive method was used on this study, where SST MODIS that was analysed by SeaDas Mapped 5.0 was compared to the TRITON buoy’s SST data during July 2002 to November 2002 (in east season 2002); December 2006 to February 2007 (in west season 2007) and July 2007-September 2007 (in east season 2007). Then, the analysis of upwelling was carried out towards the TRITON buoy’s vertical temperature on the particular coordinates using ER.Mapper 6.4 and Surfer 3.2. From this research, both of SST MODIS image and TRITON buoy have a strong relationship by r=0.5738; 0.5989; 0.5509 respectively. The upwelling in the North Papua Waters was indicated in February 2007 (west season 2007), when the l degradation level of SST reached up to 26oC.