PENGARUH AKTIVITAS ENSO DAN DIPOLE MODE TERHADAP POLA HUJAN DI WILAYAH MALUKU DAN PAPUA SELAMA PERIODE SERATUS TAHUN (1901 – 2000)
Item
Title (Dublin Core)
PENGARUH AKTIVITAS ENSO DAN DIPOLE MODE TERHADAP POLA HUJAN DI WILAYAH MALUKU DAN PAPUA SELAMA PERIODE SERATUS TAHUN (1901 – 2000)
Description (Dublin Core)
Aktivitas fenomena ENSO dan Dipole Mode merupakan sirkulasi tropis non musiman tapi mempunyai peran yang sangat penting terhadap variabilitas curah hujan di wilayah Indonesia antara lain terhadap variasi pola hujan pada setiap periode normalnya. Wilayah penelitian dalam tulisan ini adalah wilayah Maluku dan Papua yang lokasinya lebih dekat dengan aktivitas ENSO dibanding dengan aktivitas Dipole Mode. Selama periode seratus tahun (1901 - 2000) aktivitas kedua fenomena tersebut mempunyai pengaruh yang signifikan terhadap variasi pola hujan di wilayah tersebut. Dengan menggunakan metode sintesis yang terdiri atas analisis spektral, analisis korelasi spasial, analisis dinamis dan fisis atmosfer maka dapat diperoleh adanya kaitan yang signifikan antara aktivitas ENSO dan Dipole Mode dengan curah hujan bulanan di wilayah Maluku dan Papua selama periode seratus tahun. Dampak dari aktivitas El Niño, La Niña, Dipole Mode (+), Dipole Mode (-) terbesar dialami oleh pola hujan lokal dibanding terhadap pola hujan monsunal dan ekuatorial yang diindikasikan dari hasil analisis korelasi. Antara aktivitas El Niño dengan pola hujan lokal korelasi tertinggi – 0,94, La Niña dengan pola hujan lokal + 0,60, Dipole Mode (+) dengan pola hujan lokal – 0,67 dan Dipole Mode (-) dengan pola hujan lokal + 0,65.
ENSO and Dipole Mode phenomena are non seasonal tropical circulation. However, they have a very important role in the variability of rainfall in Indonesian region, such as the variation of rainfall pattern during each normal periods. The area of this research are Maluku and Papua regions, which are located closer to the ENSO activity compared to the activity of Dipole Mode. During a hundred years period (1901-2000) the possible activities of both phenomena have a significant influence on the variation of rainfall pattern in those regions. Using the synthesis method consist of spectral analysis, spatial correlation analysis, atmospheric dynamics and physics analysis, a significant connection between ENSO and Dipole Mode with monthly rainfall in the Maluku and Papua regions for a hundred years period would be obtained. The effect of El Niño, La Niña, Dipole Mode (+), Dipole Mode (-) activities are mostly due to Local Rainfall Pattern than Monsoonal and Equatorial Rainfall Pattern which has been indicated by the result of correlation analysis. The highest corellations between El Niño with Local Rainfall Pattern is – 0.94, La Niña with Local Rainfall Pattern is + 0,60, Dipole Mode (+) with Local Rainfall Pattern is – 0.67 and Dipole Mode (-) with Local Rainfall Pattern is + 0.65 respectively.
ENSO and Dipole Mode phenomena are non seasonal tropical circulation. However, they have a very important role in the variability of rainfall in Indonesian region, such as the variation of rainfall pattern during each normal periods. The area of this research are Maluku and Papua regions, which are located closer to the ENSO activity compared to the activity of Dipole Mode. During a hundred years period (1901-2000) the possible activities of both phenomena have a significant influence on the variation of rainfall pattern in those regions. Using the synthesis method consist of spectral analysis, spatial correlation analysis, atmospheric dynamics and physics analysis, a significant connection between ENSO and Dipole Mode with monthly rainfall in the Maluku and Papua regions for a hundred years period would be obtained. The effect of El Niño, La Niña, Dipole Mode (+), Dipole Mode (-) activities are mostly due to Local Rainfall Pattern than Monsoonal and Equatorial Rainfall Pattern which has been indicated by the result of correlation analysis. The highest corellations between El Niño with Local Rainfall Pattern is – 0.94, La Niña with Local Rainfall Pattern is + 0,60, Dipole Mode (+) with Local Rainfall Pattern is – 0.67 and Dipole Mode (-) with Local Rainfall Pattern is + 0.65 respectively.
Creator (Dublin Core)
Suwandi Suwandi
Subject (Dublin Core)
Aktivitas ENSO dan Dipole Mode, Pola Hujan, periode seratus tahun, Maluku dan Papua
Meteorology. Climatology
QC851-999
Geophysics. Cosmic physics
QC801-809
Publisher (Dublin Core)
Pusat Penelitian dan Pengembangan Badan Meteorologi Klimatologi dan Geofisika
Date (Dublin Core)
2015-01-01T00:00:00Z
Type (Dublin Core)
article
Identifier (Dublin Core)
1411-3082
2527-5372
10.31172/jmg.v15i1.173
https://doaj.org/article/7b582564fb4743f2aff6444dc4929f33
Source (Dublin Core)
Jurnal Meteorologi dan Geofisika, Vol 15, Iss 1 (2015)
Language (Dublin Core)
EN
ID
Relation (Dublin Core)
http://puslitbang.bmkg.go.id/jmg/index.php/jmg/article/view/173
https://doaj.org/toc/1411-3082
https://doaj.org/toc/2527-5372
Provenance (Dublin Core)
Journal Licence: CC BY-NC