Utilization of Jason-3 Satellite Altimetry Data for Observation of Tropical Cyclone Seroja
Hananda Dwi Mahetran (a*), Dudy Darmawan Wijaya (a), Zamzam Akhmad Jamaluddin Tanuwijaya (a), Ivonne Milichristi Radjawane (b), Hansan Park (c)

a) Geodesy and Geomatics Engineering, Institut Teknologi Bandung
Jalan Ganesha 10, Bandung 40132, Indonesia
*hanandadmahetran[at]gmail.com
b) Oceanography, Institut Teknologi Bandung
Jalan Ganesha 10, Bandung 40132, Indonesia
c) Marine Technology Cooperation Research Center

Abstract

The Jason-3 Satellite Altimetry has two main instruments: the Poseidon-3B Altimeter and the Advanced Microwave Radiometer (AMR). The two sensors produce many output data. Data commonly used to observe tropical cyclones are Sea Level Anomaly (SLA) and Significant Wave Height (SWH). This research tries something new by adding three other data, namely Precipitable Water Vapor (PWV), Liquid Water Content (LWC), and Wind Speed (WS). The object of this research is the tropical cyclone Seroja which occurred from 2 to 12 April 2021. This research was conducted to obtain spatial and temporal profiles of each variable. The results of this study indicate that the tropical cyclone Seroja causes an increase in SLA, PWV, SWH, LWC, and WS. In addition, the spatial model for the five variables in April 2021 obtained using IDW (Inverse Distance Weighting) can also provide information on the influence of tropical cyclones in various places.

Keywords: Liquid water content- Precipitable water vapor- Sea level anomaly- Significant wave height- Tropical cyclone- Wind speed

Topic: Atmospheric Sciences