Characteristics of Diurnal Rainfall Cycle Over Java as seen by the TRMM Precipitation Radar

  • I Dewa Gede Agung Pandawana Faculty of Informatics Engineering, College of Computer Science STMIK INDONESIA (STIKI), Jl. Tukad Pakerisan 97, Denpasar, Bali 80232 Indonesia
  • Tasuku Tanaka Center for Remote Sensing and Ocean Sciences (CReSOS), Udayana University, PB Sudirman Street, Denpasar, Bali 80232, Indonesia
  • Takahiro Osawa Regional Satellite Applications Center for Disaster Management (RSCD), Japan Aerospace Exploration Agency (JAXA), 4-1-1 Industrial Technology Institute Asutopia, Ube, Yamaguchi 7550195, Japan
  • Abd. Rahman As-syakur Center for Remote Sensing and Ocean Sciences (CReSOS), Udayana University, PB Sudirman Street, Denpasar, Bali 80232, Indonesia
  • Made Sudiana Mahendra Graduate Study Environmental Sciences, Udayana University, Jl. PB Sudirman, Denpasar, Bali 80232 Indonesia
DOI: https://doi.org/10.24843/ijeg.2019.v03.i01.p03

Abstract

Precipitation is one element of climate that mostly studied in Indonesia because it has a very high diversity both temporal (time) as well as spatial (place). The diurnal cycle is one of the important factors in the occurrence of rain in the islands of Indonesia that have an impact on regional rainfall patterns in Indonesia. The diurnal cycle of precipitation is an essential component of the tropical climate and one of the predominant components of atmospheric variations. The aims of this research were to determine and analyze the spatial patterns and the characteristics of rainfall diurnal cycle in Java Island and the surrounding areas (Java Island, Java Sea and Indian Ocean) using remote sensing data. In this study, data from Tropical Rainfall Measuring Mission satellite (TRMM) Precipitation Radar level 2A25 and wind data from National Centers for Environmental Prediction (NCEP) for 5 years period from 2007 to 2011 are used. The results of this research are the spatial patterns of daily rainfall in Java Island and the surrounding areas are different between land and sea. In the land, rain generally occur in the afternoon (12.00 to 18.00 LT), whereas in the ocean (the Java Sea and Indian Ocean) generally occur at midnight and noon (00.00 to 12.00 LT). The characteristics of rainfall diurnal cycle in Java Island and the surrounding areas are effected by land-sea physical properties, day-night cycle and by land-sea location.

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Published
2019-06-01
How to Cite
PANDAWANA, I Dewa Gede Agung et al. Characteristics of Diurnal Rainfall Cycle Over Java as seen by the TRMM Precipitation Radar. International Journal of Environment and Geosciences, [S.l.], v. 3, n. 1, p. 17-25, june 2019. ISSN 2549-8878. Available at: <https://ojs.unud.ac.id/index.php/ijeg/article/view/56045>. Date accessed: 21 nov. 2024. doi: https://doi.org/10.24843/ijeg.2019.v03.i01.p03.
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Vol 3 No 1 (2019)
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