Spatial Temporal Analysis of Mesoscale Convective System to Asia-Australia Monsoon in East Java

Prasetyo Firdianto (Maritime Meteorological Station of Tanjung Perak, Indonesian Agency of Meteorology Climatology and Geophysics (BMKG), Kalimas Baru Street No. 97B, Surabaya 60165, Indonesia)
Bangun Muljo Sukojo (Department of Geomatics Engineering, Institut Teknologi Sepuluh Nopember, Surabaya 60111, Indonesia)
Achmad Zakir (Indonesian State College of Meteorology Climatology and Geophysics (STMKG), Indonesian Agency of Meteorology Climatology and Geophysics (BMKG), Meteorologi Street No. 5, Tangerang Selatan 15221, Indonesia)
Adi Mulsani (Indonesian State College of Meteorology Climatology and Geophysics (STMKG), Indonesian Agency of Meteorology Climatology and Geophysics (BMKG), Meteorologi Street No. 5, Tangerang Selatan 15221, Indonesia)

Jurnal Penginderaan Jauh dan Pengolahan Data Citra Digital
Vol 19 No 1 (2025)

Indonesia maritime continent has the formation of clouds that can develop and evolution into MCSs (Mesoscale Convective System). Asian-Australian monsoon has an important influence in determining activities of MCSs. Research gap is analysis of relation between monsoon and MCSs in East Java where is greatly influenced by the monsoon. The data are weather satellite of Himawari, zonal wind and meridional wind ERA-Interim Model 850 mb. Determination of the MCSs follows the physical characteristics in the Maddox algorithm and the AUSMI index follows the Kajikawa algorithm. The method used is quantitative analysis of coefficient of correlation and determination, and qualitative in the form of descriptive analytic. It can be known that the Asian-Australian monsoon has weak influence on the MCSs in the East Java. AUSMI index has the same pattern and phase with frequency of MCSs on seasonal.