Author(s)

Reynold Mahubessy , Andreas Kurniawan Silitonga, Giofani Pratiwi Lumbantobing and Hasti Amrih Rejeki

Corresponding Author

Reynold Mahubessy

ABSTRACT

Indonesia is a tropical area with relatively high irradiation causes the rising of sea surface temperatures. The result is center of low pressure area which can trigger the formation of tropical cyclone which started by the formation of tropical disturbances such as tropical depressions, tropical storms and finally become a tropical cyclone. The objective of this research is to analyse of atmospheric and marine dynamics in Java Island during Cempaka Tropical Cyclone using parameters such as rainfall, wind, and sea wave height. Those parameters can represent the dynamic analysis of the atmosphere and waters in the Java Island during Cempaka Tropical Cyclone. Descriptive analysis is used as the method for this research. The results of data analysis showed that Cempaka Tropical Cyclone gives an impact as bad weather such as rain with moderate to heavy intensity in the South, West Java, Central Java, Yogyakarta, East Java, and Bali. The amount of rainfall on Monday, November 27, 2017, in one day reached 364.1 millimeters in Sleman, Yogyakarta and it categorized as very heavy rainfall. The southern area of Cianjur, Garut, Tasikmalaya and Pangandaran on 27-28 November 2017 was also heavy rain. In addition, the potential for high speed winds can reach up to 30 knots occured in the Mentawai Islands, Bengkulu, South Sumatra, Bangka Belitung, Lampung, Banten, Jakarta. The other impacts of high waves 1.25 - 2.5 meters occured in the South Sea of Bali to Sumba Island, Bali Strait, the Lombok Strait, and the South of Alas Strait and high waves 2.5 – 4.0 meters in the South Sea of Central Java to East Java, and Bali.

KEYWORDS

Tropical Cyclone, rainfall, ocean wave height.