Filaili, Ragfinsa Budiaski (2018) Analisa Fenomena ENSO di Perairan Indonesia Menggunakan Data Altimetri Topex/Poseidon dan Jason Series Tahun 1993-2018. Undergraduate thesis, Institut Teknologi Sepuluh Nopember.
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Abstract
ENSO (El Nino Southern Oscillation) adalah fenomena yang terjadi akibat adanya penyimpangan kondisi interaksi antara lautan dan atmosfer di sepanjang Samudera Pasifik sekitar ekuator dari keadaan normalnya. Salah satu wilayah yang terkena dampak dari fenomena El Nino Southern Oscillation adalah perairan Indonesia. Hal yang terpengaruh karena adanya fenomena El Nino Southern Oscillation selain cuaca adalah sea level. Untuk mengetahui wilayah perairan Indonesia mana saja yang terpengaruh fenomena tersebut maka dilakukan perhitungan korelasi antara nilai Sea Level Anomaly dari data satelit altimetri dengan indeks El Nino Southern Oscillation yaitu Multvariate ENSO Index, Southern Oscillation Index, Oscillation Nino Index. Nilai korelasi mean sea level anomaly dengan indeks Multvariate ENSO Index adalah -0,799. Pada korelasi mean sea level anomaly dengan indeks Oscillation Nino Index adalah -0,858. Sedangkan korelasi mean sea level anomaly dengan indeks Southern Oscillation Index adalah 0,698. Hal tersebut menunjukkan bahwa hubungan fenomena ENSO dengan sea level anomaly memiliki korelasi kuat. Hasil dari korelasi sea level anomaly dengan indeks El Nino Southern Oscillation secara spasial memiliki korelasi terkecil pada 90 BT, 17 LS sedangkan daerah yang memiliki korelasi terbesar terdapat pada 129 BT, 1 LU. Wilayah korelasi sea level anomaly dengan indeks ENSO yang memiliki hubungan kuat atau perubahan sea level anomaly yang terjadi ketika fenomena El Nino Southern Oscillation paling besar pada Laut Halmahera, perairan di Utara Papua, Laut Maluku, Laut Sulawesi dan periaran sekitar Nusa Tenggara Timur. Wilayah yang korelasi sea level anomaly dengan indeks ENSO rendah terdapat di sekitar perairan Sumatra, Laut Natuna, perairan Jawa Barat. Sedangkan perairan Jawa Timur, perairan Bali dan Nusa Tenggara Barat (Laut Flores) memiliki nilai korelasi sedang. ====================ENSO (El Nino Southern Oscillation) is a phenomenon that occurs due to the deviation of the condition of the interaction between oceans and the atmosphere along the Pacific Ocean around the equator from normal state. One of the areas affected by the impact of the El Nino Southern Oscillation phenomenon is the Indonesia sea. El Nino Southern Oscillation phenomenon was affected weather and other affected was to the sea level. To find out the territorial Indonesia waters which affected with ENSO then performed the calculation of correlation between the value of Sea Level Anomaly from satellite altimetri data with the index El Nino Southern Oscillation (Multvariate ENSO Index, Southern Oscillation Index, Nino Oscillation Index). The value of the correlation mean sea level anomaly with ENSO Index Multvariate index is -0.799, in correlation mean sea level anomaly with the Oscillation Nino Index is -0.858. While correlation mean sea level anomaly with the Southern Oscillation Index is 0.698. It shows that the relationship sea level anomaly with the ENSO phenomenon have a strong correlation. The result correlation of sea level anomaly with El Nino Southern Oscillation indices has the smallest value at 90 E, 17 S whereas has the greatest correlation found in 129 E, 1 N. The region of sea level anomaly correlation with ENSO indices that have strong relationships or most changes in sea level anomaly of the Halmahera sea, sea north of Papua, Maluku sea, Sulawesi sea and sea around East Nusa Tenggara. The area that the correlation of sea level anomaly with ENSO index is low is around the island of Sumatra, Natuna sea, and sea around West Java. While sea around East Java, sea around of Bali and West Nusa Tenggara (Flores sea) has the moderate value of the correlation.
| Item Type: | Thesis (Undergraduate) |
|---|---|
| Uncontrolled Keywords: | El Nino Southern Oscillation, Correlation, Sea Level Anomaly |
| Subjects: | G Geography. Anthropology. Recreation > G Geography (General) > G70.5.I4 Remote sensing G Geography. Anthropology. Recreation > GC Oceanography T Technology > TC Hydraulic engineering. Ocean engineering > TC424 Water levels |
| Divisions: | Faculty of Civil, Environmental, and Geo Engineering > Geomatics Engineering > 29202-(S1) Undergraduate Theses |
| Depositing User: | Ragfinsa Budiaski Filaili |
| Date Deposited: | 12 Jul 2021 23:01 |
| Last Modified: | 12 Jul 2021 23:01 |
| URI: | http://repository.its.ac.id/id/eprint/54454 |
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