Identifikasi Karakteristik Mesoscale Convective Complex (MCC) di Selat Makassar

Abstract

Convective clouds in the form of cloud cover that are quite large and meet the characteristics of the Mesoscale Convective Complex (MCC) have occurred in the Makassar Strait area. This mesoscale convective cloud cover has a fairly long duration, is semicircular in shape, and has a large cloud cover pattern. MCC also results in an increase in wind speed and wave height in the area traversed. This MCC processing uses Himawari-8 infrared satellite image data with an algorithm that has been built and based on the characteristics of MCC in Indonesia. Characteristics in the form of area, duration, and eccentricity value of the MCC are displayed in the processed results of this paper. The results of this study show the position of the MCC, the movement of the MCC, and also the consequences of the MCC cloud cluster. The duration of the MCC that occurred in the Makassar Strait was recorded for 8 hours and the location of the occurrence in the ocean. The final result of this analysis produces latitude and longitude coordinates, as well as cloud pixel area and eccentricity values. Verification is done by taking BMKG satellite image data to confirm the presence of MCC clouds.

Karakteristik Mesoscale Convective Complex (MCC) di Wilayah Sulawesi Selatan dan Sekitarnya

“…Sedangkan dalam penelitian Durkee & Mote (2010) dalam wilayah Subtropis Amerika durasi rata-rata MCC 14 jam. Fenomena MCC dapat memiliki cakupan awan konvektif yang luas dengan durasi hidup yang panjang karena MCC termasuk dalam kategori fenomena low level jet saat proses konveksi (Saragih, 2021). Sepanjang tahun 2018-2020 terlihat kejadian MCC terjadi pada masa musim penghujan (Desember-Januari-Februari) dimana pergerakan MCC mengikuti pola angin meridional sesuai dengan sistem monsoon Asia.…”

Identification of Mesoscale Convective Complex (Mccs) at Southern Papua for the Period of December 2017 – November 2022

“…Then, research by Saragih (2021) investigated the MCC phenomenon in the Makassar Strait on September 4, 2021, utilizing Himawari-8 satellite imagery. The study revealed the presence of MCC cloud cover growing over the Makassar Strait with a lifespan of 8 hours [8].…”

“…Research on MCCs identification using the Himawari-8 satellite has been conducted in several regions of Indonesia, such as Central Kalimantan by Yulishatin et al [12] and Papua Island by Saragih et al conducted only for 1 year [13]. Therefore, we want to extend the study period to 5 years to get more comprehensive understanding about MCC in Southern Papua region using Himawari-8 satellite imagery in the IR channel, as well as its impacts on rainfall over a period of 5 years from December 2017 to November 2022.…”