Spatial Variability of Diurnal Precipitation over Southern of Sumatra during 2009−201

Khakim, Mokhamad Yusup Nur (2017) Spatial Variability of Diurnal Precipitation over Southern of Sumatra during 2009−201. Proceeding of The 7th Annual Basic Science International Conference – 2017, 1 (2017). pp. 104-107. ISSN 2338-0128

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Abstract

This study was designed to examine spatial variations of diurnal precipitation over Southern of Sumatra for a period of 1 January 2009−31 December 2010. The Indonesian maritime continent is surrounding by many islands and sea. Therefore, the spatial variation of its precipitation will be strongly influenced by the interactions between land and adjacent sea. The data of this study were provided by the Tropical Rainfall Measuring Mission (TRMM) Precipitation Radar (PR) and the National Centers for Environmental Prediction (NCEP)/the National Centers for Atmospheric Research (NCAR) reanalysis. In other, to evaluate the spatial variations of the diurnal cycle of precipitation and other climate variables, the diurnal climatology analysis is focused on the area of 0.5°S – 6.5°S and 95°E – 112°E. The study result shows that the intensity of precipitation over the ocean is much higher than that over the land. High precipitation over the ocean region occurred in the early morning during 0400-1000 Local Time (LT), while lower precipitation was observed in the evening (1900-2200 LT). On the other hand, the rainfall peak over the land was observed in the evening (1900-2200 LT) and the low rainfall was occurring in the daytime (1300-1600 LT). In addition, high precipitation both over the land and over the ocean is associated with the upward motion. Based on the hovmöller diagram, the precipitation intensity was concentrated near the coast, but it shows offshore migration during the daytime.

Item Type:	Article
Subjects:	#3 Repository of Lecturer Academic Credit Systems (TPAK) > Articles Access for TPAK (Not Open Sources)
Divisions:	08-Faculty of Mathematics and Natural Science > 45102-Physics (S2)
Depositing User:	Mokhamad Yusup Nur Khakim
Date Deposited:	19 May 2023 05:47
Last Modified:	19 May 2023 05:47
URI:	http://repository.unsri.ac.id/id/eprint/103832

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