Sovremennye problemy distantsionnogo zondirovaniya Zemli iz kosmosa, 2015, Vol. 12, No. 1, pp. 80-92
Study of the net primary production variability in the Japan Sea from satellite data using EOF-analysis
Yu.V. Shambarova
1 , I.E. Stepochkin
2 , S.P. Zakharkov
1
1 V.I. Il’ichev Pacific Oceanological Institute FEB RAS, Vladivostok, Russia
2 Adm. G.I. Nevelskii Maritime State University, Vladivostok, Russia
Results of spatiotemporal variability research for net primary production (NPP) in Japan Sea using satellite remote sensing data are introduced in this study. Results of spatiotemporal variability research for net primary production (NPP) in Japan Sea using satellite remote sensing data are presented. Seasonal and interannual variability of NPP during the period of 2003-2012 was analyzed using the empirical orthogonal functions (EOF) method. Upon analyzing NPP, 3 statistically significant modes were selected; their contributions to entire variance were 54,8% (EOF1), 16,2% (EOF2) and 7,1% (EOF3). The greatest variability of EOF1 was revealed in the south-eastern part of Japan Sea and near the Primorsky Region coast. Spatial distribution of EOF2 was zoned for the northern and southern parts along the subarctic front. PC-parameter of the 1st and 2nd modes was determined by spring phytoplankton blooming and total inter-annual NPP dynamics. EOF3 shows NPP spatial-temporal evolution features in the Japan Sea.
Keywords: net primary production, phytoplankton, empirical orthogonal functions, remote sensing, satellite data, Japan Sea
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