Natuna Off-Shelf Current (NOC) Vertical Variability and Its Relation to ENSO in the North Natuna Sea
| العنوان: | Natuna Off-Shelf Current (NOC) Vertical Variability and Its Relation to ENSO in the North Natuna Sea |
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| المؤلفون: | Widodo S. Pranowo, Kunarso Kunarso, Muhammad Faiq Marwa Noercholis, Hariyadi Hariyadi, Anindya Wirasatriya, Niken Dwi Prasetyarini, Johannes Hutabarat, Denny Nugroho Sugianto, Parichat Wetchayount |
| المصدر: | Ilmu Kelautan, Vol 26, Iss 2, Pp 63-70 (2021) |
| بيانات النشر: | Institute of Research and Community Services Diponegoro University (LPPM UNDIP), 2021. |
| سنة النشر: | 2021 |
| مصطلحات موضوعية: | 010504 meteorology & atmospheric sciences, Ecology, QH301-705.5, natuna off-shelf current, Wind stress, Magnitude (mathematics), GC1-1581, Aquatic Science, 010502 geochemistry & geophysics, Oceanography, Monsoon, Spatial distribution, 01 natural sciences, Wind speed, enso, Current (stream), El Niño Southern Oscillation, vertical variability, Climatology, Biology (General), noc, Thermocline, Geology, north natuna sea, 0105 earth and related environmental sciences |
| الوصف: | During the northwest monsoon (NWM), southerly flow off the Natuna Islands appeared as the extension of the turning Vietnam coastal jet, known as Natuna off-shelf current (NOC). NOC is generated by the interaction of wind stress and the North Natuna Sea’s bottom topography. The purposes of the present study is to investigate the vertical variability of NOC and its relation to El Niňo Southern Oscillation (ENSO) using Marine Copernicus reanalysis data. The vertical variability refers to the spatial distribution of NOC pattern at the surface layer, thermocline layer, and deep/bottom layer. in 2014 as representative of normal ENSO condition. To investigate the effect of ENSO, the spatial distribution of NOC in 2011 and 2016 were compared which represent the La Niňa and El Niňo conditions, respectively. The results show that NOC starts to generate at the southeast monsoon season to the transition I season and peaks in the northwest monsoon season. The occurrence of NOC is identified at all depth layers with the weakened NOC at the deep layer. Related to the ENSO effect, La Niňa tends to strengthen NOC while El Niňo tends to weaken NOC. These are releted with the strengthening and weakening northerly wind speed during La Niňa and El Niňo, Respectively. During La Niňa events, the NOC occurs more frequently than during El Niňo. Thus, beside affecting the magnitude of NOC, ENSO also influence the frequency occurrence of NOC. |
| تدمد: | 2406-7598 0853-7291 |
| الوصول الحر: | https://explore.openaire.eu/search/publication?articleId=doi_dedup___::e82e3844749d3da8cb375dab29433f2dTest https://doi.org/10.14710/ik.ijms.26.2.63-70Test |
| حقوق: | OPEN |
| رقم الانضمام: | edsair.doi.dedup.....e82e3844749d3da8cb375dab29433f2d |
| قاعدة البيانات: | OpenAIRE |
| تدمد: | 24067598 08537291 |
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