ILMU KELAUTAN: Indonesian Journal of Marine Sciences, 2010
This paper describes correlation between ITF transports through the Lifamatola Strait with SOI da... more This paper describes correlation between ITF transports through the Lifamatola Strait with SOI data representing ENSO phenomenon has been carried out. The Lifamatola Strait is one of the ITF eastern routes which has sill around a depth of 1940 m. Current velocity data of INSTANT mooring deployed in 2004-2006 and SOI data were used In this study. The data analysis was done by using methods of low pass filter, spectral analysis, and cross correlation. The currents in the Lifamatola Strait flow dominantly northwestward in depths of 1000-1300 m, while in depths of 1400-2000 m the currents flow dominantly southeastward representing the ITF. Results of this study showed that there was a correlation between the velocity current (ITF transports) in the Lifamatola Strait with ENSO phenomenon, namely the strengthening/weakening southeastward transport of the ITF during El Nino/La Nina phenomenon. Cross correlation values of the current velocity and SOI data in the Lifamatola Strait are r(2-7)...
The complexity of the climate - ocean interactions in Indonesia is caused by the Indonesia's ... more The complexity of the climate - ocean interactions in Indonesia is caused by the Indonesia's geographical position at the crossroads of the Indian and the Pacific Ocean. Periodic phenomena such as ENSO, and non- periodic such as IOD affect Indonesian Monsoon system. A large volume of water masses from the Pacific Ocean that flows into the Indian Ocean passing through the territorial sea of Indonesia (Indonesian Through- flow) helps to provide a balance to the ocean climate in Indonesia as part their migration areas. For Tuna fisheries in Indonesia, Indian Ocean plays an important role for tuna’s habitat. This article describes the physical condition of the ecosystem in the East Indian Ocean based on archive data of the climate - sea survey, and also describes sustainable tuna habitat survey data based on tuna catches data. The southern part of Indian Ocean is a high primary productivity area for tuna because there is a periodic Java upwelling system occurred between June and Oct...
ILMU KELAUTAN: Indonesian Journal of Marine Sciences, 2010
This paper describes correlation between ITF transports through the Lifamatola Strait with SOI da... more This paper describes correlation between ITF transports through the Lifamatola Strait with SOI data representing ENSO phenomenon has been carried out. The Lifamatola Strait is one of the ITF eastern routes which has sill around a depth of 1940 m. Current velocity data of INSTANT mooring deployed in 2004-2006 and SOI data were used In this study. The data analysis was done by using methods of low pass filter, spectral analysis, and cross correlation. The currents in the Lifamatola Strait flow dominantly northwestward in depths of 1000-1300 m, while in depths of 1400-2000 m the currents flow dominantly southeastward representing the ITF. Results of this study showed that there was a correlation between the velocity current (ITF transports) in the Lifamatola Strait with ENSO phenomenon, namely the strengthening/weakening southeastward transport of the ITF during El Nino/La Nina phenomenon. Cross correlation values of the current velocity and SOI data in the Lifamatola Strait are r(2-7)...
The complexity of the climate - ocean interactions in Indonesia is caused by the Indonesia's ... more The complexity of the climate - ocean interactions in Indonesia is caused by the Indonesia's geographical position at the crossroads of the Indian and the Pacific Ocean. Periodic phenomena such as ENSO, and non- periodic such as IOD affect Indonesian Monsoon system. A large volume of water masses from the Pacific Ocean that flows into the Indian Ocean passing through the territorial sea of Indonesia (Indonesian Through- flow) helps to provide a balance to the ocean climate in Indonesia as part their migration areas. For Tuna fisheries in Indonesia, Indian Ocean plays an important role for tuna’s habitat. This article describes the physical condition of the ecosystem in the East Indian Ocean based on archive data of the climate - sea survey, and also describes sustainable tuna habitat survey data based on tuna catches data. The southern part of Indian Ocean is a high primary productivity area for tuna because there is a periodic Java upwelling system occurred between June and Oct...
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