化学海洋学特論II

My10mintalk Twotopics 1 TheJapaneseusefuldatasetforthetimeseriesdata 2 Someofourgroup sresults DecadalchangesofoceaniccomponentsinthewesternNorthPacific a Itslineartrendandoscillation b Thechangeofbiologicalactivityinthesurface 4 8 N 0 N 1 7 5 E 3 4 5 N 1 3 7 E O y 3 N J p JMAdata 1971 KANSOdata website NOPACCSWESTCOSMIC 1990 2001 Longitude E Latitude N JMAdata 1980s 155E 165E P1rev JODCwebsite 1999 JODCdata website 1960s JMAdata 1971 KNOTdata website 1997 ForJMAdata PleasecontactthemembersofJMAorMRJ Ishii Inoue I JODC JapanOceanographicDataCenter J DOSS JODCdataOn lineServiceSystem II IJCD InventoryofJapaneseChemicaloceanographicData Althoughmostofthemareclosed itisnecessarytocontacteachPI Japaneseusefuldatasite ItispossibletogettheJMAdataalong137E Thelineartrendandoscillation Manyresultsareonlybasedonthetwosnapshotdata Thus usingthelongtermdataset wetrytoclarifythefollowing TheselineartrendsandoscillationshavecompletelystrongcorrelationagainstNPI ComparisonofDO PO4 TbetweenJapanSeaDeepWaterandNorthPacificIntermediateWater Thechangeoftheseparametersinthetwooceansoccurredby27 4sq JapanSea 3000m NorthPacific 1000m Thechangeoftheseparameterssynchronizedtoeachotherdespitethesewaterformationsystemstobeindependent Possibilityofthechangeofmarinebiologicalactivity Evenifthebiologicalactivitiesdonotincreaseremarkably itispossiblethattheyalreadychangedduetothechangeofphysicalconditions Usingthelongtermdatasetwithbiologicalactivity weheretrytoclarifythefollowing TimeseriesofChlorophyll aSubsurfaceMa