Nisa, Adifa Anafiatun (2022) Analisis Perubahan Cuaca Menggunakan Citra Satelit Himawari-8 Dengan Metode 24-Hours Microphysics Rgb Dan Convective Available Potential Energy (Studi Kasus: Banjir Kalimantan Tengah 18-24 Agustus 2021). Other thesis, Institut Teknologi Sepuluh Nopember.
![[thumbnail of 03311840000076-Undergraduate_Thesis.pdf]](http://repository.its.ac.id/style/images/fileicons/text.png) |
Text
03311840000076-Undergraduate_Thesis.pdf Restricted to Repository staff only Download (14MB) |
Abstract
Hujan dengan intensitas ringan hingga lebat yang menyebabkan banjir melanda Provinsi Kalimantan Tengah dimulai pada tanggal Kamis (19/8/2021), dan merendam 13 kecamatan di Kabupaten Katingan, Kalimantan Tengah. Penelitian menganalisis cuaca saat hujan lebat menggunakan data reanalisis dari Copernicus ECMWF yaitu Convective Available Potential Energy (CAPE) yang kemudian diolah menjadi peta dan didukung dengan data dari satelit Himawari-8 untuk menganalisis Streamline, Time series, 24-Hours Microphysics RGB mulai dari tanggl 18-24 Agustus 2021. Pada tanggal 18 Agustus 2021 terdeteksi adanya awan Cumulonimbus di wilayah Kabupaten Katingan, dengan suhu puncak awan tertinggi mencapai -67℃ dimana ketika suhu diatas -60℃, hal ini menunjukkan bahwa awan-awan tersebut merupakan awan konvektif Cumulonimbus dengan puncak yang tinggi, dan nilai CAPE tertinggi sebesar 1001-1500 J/kg yang berarti dikategorikan sebagai energi yang moderat. Pada tanggal 19 Agustus 2021 terdeteksi adanya awan Cumulonimbus, suhu puncak awan tertinggi mencapai -70℃, nilai CAPE sebesar 1501-2100 J/kg yang berarti dikategorikan sebagai energi yang moderat kuat. Pada tanggal 20 Agustus 2021 terdeteksi adanya awan Cumulonimbus, suhu puncak awan tertinggi mencapai -78℃, nilai cape sebesar 2101-3545.6 J/kg yang berarti dikategorikan sebagai energi yang kuat. Pada tanggal 21 Agustus terdapat awan Cumulonimbus tipis dan tidak menyebar secara, suhu puncak awan tertinggi mencapai -38℃ dimana dengan suhu tersebut sudah dibawah freezing level dan sudah mengandung kristal awan, nilai cape pada sebagian besar wilayah Kabupaten Katingan sebesar 200-400 J/kg yang berarti dikategorikan sebagai energi yang lemah. Pada tanggal 22 Agustus 2021 terdeteksi adanya awan Cumulonimbus, suhu puncak awan tertinggi mencapai -77℃, nilai cape sebesar 701-1400 J/kg yang berarti dikategorikan sebagai energi yang moderat lemah. Pada tanggal 23 Agustus tidak terdapat awan Cumulonimbus pada wilayah Kabupaten Katingan, suhu puncak awan tertinggi mencapai -37℃, nilai cape pada sebagian besar wilayah Kabupaten Katingan sebesar 0-600 J/kg yang berarti dikategorikan sebagai energi yang lemah. Pada tanggal 24 Agustus 2021 terdeteksi adanya awan Cumulonimbus di wilayah Kabupaten Katingan, suhu puncak awan tertinggi mencapai -78℃, nilai cape pada wilayah Kabupaten Katingan sebesar 2102-3474.5 J/kg yang berarti dikategorikan sebagai energi yang kuat. Analisa streamline tanggal 18,19,20,22,24 pada lapisan 850 mb diatas wilayah Kabupaten Katingan terdapat adanya belokan (Shearline). Sedangkan pada tanggal 21 dan 23 Agustus 2021 angin diatas Kabupaten Katingan tampak lurus dan tidak terjadi belokan yang sangat signifikan sehingga pada tanggal 21 dan 23 Agustus 2021 tidak atau terjadi pembentukan dan sedikit awan konvektif yang sangat tipis.
===================================================================================================================================
Rain with light to heavy intensity causing flooding in Central Kalimantan Province starting on Thursday (19/8/2021), and submerged 13 sub-districts in Katingan Regency, Central Kalimantan. The study analyzed the weather during heavy rains using reanalyzed data from Copernicus ECMWF, namely Convective Available Potential Energy (CAPE) which was then processed into a map and supported by data from the Himawari-8 satellite to analyze Streamline, Time series, 24-Hours Microphysics RGB starting on the 18th. -24 August 2021. On 18 August 2021 Cumulonimbus clouds were detected in the Katingan Regency area, with the highest cloud top temperature reaching -67℃ whereas when the temperature was above -60℃, this indicates that these clouds are Cumulonimbus convective clouds with a high peak, and the highest CAPE value is 1001-1500 J/kg which means it is categorized as moderate energy. On August 19, 2021, Cumulonimbus clouds were detected, the highest cloud top temperature reached -70℃, and the CAPE value was 1501-2100 J/kg which means it is categorized as moderately strong energy. On August 20, 2021, Cumulonimbus clouds were detected, the highest cloud top temperature reached -78℃, and the cape value was 2101-3545.6 J/kg which means it is categorized as strong energy. On August 21, there were thin Cumulonimbus clouds that did not spread evenly, the highest cloud top temperature reached -38℃ where the temperature was already below the freezing level and already contained cloud crystals, and the cape value in most areas of Katingan Regency was 200-400 J/kg which means it is categorized as weak energy. On August 22, 2021, Cumulonimbus clouds were detected, the highest cloud top temperature reached -77℃, and the cape value was 701-1400 J/kg which means it is categorized as moderately weak energy. On August 23, there were no Cumulonimbus clouds in the Katingan Regency area, the highest cloud top temperature reached -37℃, and the cape value in most areas of the Katingan Regency was 0-600 J/kg which means it is categorized as weak energy. On August 24, 2021, Cumulonimbus clouds were detected in the Katingan Regency area, the highest cloud top temperature reached -78℃, and the cape value in the Katingan Regency area was 2102-3474.5 J/kg which means it is categorized as strong energy. Streamline analysis dated 18,19,20,22,24 in the 850 mb layer above the Katingan Regency area, there is a Shearline. Meanwhile, on 21 and 23 August 2021, the wind over Katingan Regency looked straight and there were no very significant turns so on 21 and 23 August 2021 there was no formation or formation of very thin convective clouds.
| Item Type: | Thesis (Other) |
|---|---|
| Additional Information: | RSG 621.367 8 Nis a-1 2022 |
| Uncontrolled Keywords: | Awan Cumulonimbus, Banjir, Convective Available Potential Energy, satelit Himawari-8. Cumulonimbus Clouds, Floods, Convective Available Potential Energy, Himawari-8 satellite. |
| Subjects: | G Geography. Anthropology. Recreation > G Geography (General) > G70.5.I4 Remote sensing |
| Divisions: | Faculty of Civil, Planning, and Geo Engineering (CIVPLAN) > Geomatics Engineering > 29202-(S1) Undergraduate Thesis |
| Depositing User: | Mr. Marsudiyana - |
| Date Deposited: | 20 May 2026 04:29 |
| Last Modified: | 20 May 2026 04:29 |
| URI: | http://repository.its.ac.id/id/eprint/133274 |
Actions (login required)
 |
View Item |