KAJIAN WAKTU HIDUP DAN PERGERAKAN AWAN KONVEKTIF BERBASIS CITRA RADAR DAN MODEL ECMWF

Authors

  • Mochammad Donny Anggoro Sekolah Tinggi Meteorologi Klimatologi dan Geofisika
  • Bagus Pramujo Badan Meteorologi Klimatologi dan Geofisika

Keywords:

lifetime, movement, convective cloud, hail, heavy rain

Abstract

Clouds as actors in the atmospheric dynamic, it is important to learn especially the convective cloud. Radar data is used to show the characteristic of convective clouds that producing hail and heavy rain with digitization method and life history method. Maximum VIL value of hail case studies in Bogor is 45 kg / m2, maximum reflectivity is 65 dBz reaches a height of 9 km at 08.12 UTC. Three Body Scatter Spike (TBSS) appear as a mark will occur hail process. The growth of convective clouds that producing hail on July 5 2016, in Bogor occurred for 140 minutes. The cumulus stage takes 33 minutes, the mature stage takes 80 minutes, and the dissipation stage takes 27 minutes. The convective clouds move from southeast-south is caused by regional factors, with speed 12-18 knots. Relative Humidity (RH) 85-90% is present in layers 840 mbar to 810 mbar. Maximum VIL value of heavy rain case studies is 5 kg / m2 and maximum reflectivity is 58 dBz. The growth of convective clouds that producing heavy rain on February 16 2016, occurred for 220 minutes. The cumulus stage takes 30 minutes, the mature stage takes 150 minutes, and the dissipation stage takes 40 minutes. The convective clouds move from northwest is caused by regional factors, with speed 5-10 knots. Relative Humidity (RH) is more than 95% is present in layers 400 mbar to 200 mbar.

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Published

2019-04-29

How to Cite

Anggoro, M. D., & Pramujo, B. (2019). KAJIAN WAKTU HIDUP DAN PERGERAKAN AWAN KONVEKTIF BERBASIS CITRA RADAR DAN MODEL ECMWF. Jurnal Meteorologi Klimatologi Dan Geofisika, 4(3), 24–31. Retrieved from https://jurnal.stmkg.ac.id/index.php/jmkg/article/view/50

Issue

Vol. 4 No. 3 (2017): Jurnal Meteorologi Klimatologi dan Geofisika

Section

Articles

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