The effect of the Pacific Ocean water mass on water and climate around Maluku

A. Y. Herwindya, A. H. Soepardjo, E. Aldrian

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

Abstract

Water mass characteristics in the waters around Maluku are influenced by the water mass of the Pacific Oceans. The parameters used to see the changes when the El Nino and La Nina are the sea surface temperature, salinity and TS diagram patterns. Generally, this research aims to examine the relationship of the Pacific Ocean and the Banda Sea in 1993 to 2000 (normal condition, El Nino and La Nina events) to the climate conditions in the Maluku. The study was conducted using the data CTD World Ocean Database and climate data from the European Center for Medium-Range Weather Forecasts in the waters around Maluku. There are two types of water masses Affect the Banda Sea, which is can be seen from the two types of density, each of σt = 26.0 kg/m3 with a salinity maximum 34.9 psu at a depth of 230 m, shows the influence of the water Mass of the South Pacific. The density of σt = 23.7 kg/m3 with a maximum salinity of 34.83 psu at a depth of 127 m, shows the influence of the water mass of the North Pacific. The relationship between the water mass and the climate are clearly shown during the 1998 El Niño, surface salinity value (33.8 psu) higher than normal conditions (33.65 psu). The SST Indices value in 1998 indicates a significant anomaly with values ranging from + 3.2 to - 1.2. The pattern of sea surface temperature anomaly change is inversely proportional to the pattern of rainfall, where when the anomalous value of sea surface temperature increases then the value of rainfall will be reduced. Meanwhile, during the La Nina at 1999-2000 average value of surface salinity (34.3 psu), are higher than normal conditions (34.56 psu) which means during The El Nino and La Nina changes the water mass and climate around the Maluku.

Original languageEnglish
Title of host publicationProceedings of the 3rd International Symposium on Current Progress in Mathematics and Sciences 2017, ISCPMS 2017
EditorsRatna Yuniati, Terry Mart, Ivandini T. Anggraningrum, Djoko Triyono, Kiki A. Sugeng
PublisherAmerican Institute of Physics Inc.
ISBN (Electronic)9780735417410
DOIs
Publication statusPublished - 22 Oct 2018
Event3rd International Symposium on Current Progress in Mathematics and Sciences 2017, ISCPMS 2017 - Bali, Indonesia
Duration: 26 Jul 201727 Jul 2017

Publication series

NameAIP Conference Proceedings
Volume2023
ISSN (Print)0094-243X
ISSN (Electronic)1551-7616

Conference

Conference3rd International Symposium on Current Progress in Mathematics and Sciences 2017, ISCPMS 2017
Country/TerritoryIndonesia
CityBali
Period26/07/1727/07/17

Keywords

  • El Nino
  • La Nina
  • Maluku
  • TS diagram
  • Water mass

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