Dry spell frequency in West Java, Indonesia

3rd International Seminar On Sciences "Sciences On Precision And Sustainable Agriculture"

Purnaningtyas, V.I.^1,2 ; Boer, R.^1 ; Faqih, A.^1

Department of Geophysics and Meteorology, Faculty of Mathematics and Natural Sciences, Bogor Agricultural University (IPB), Indonesia^1

Meteorological Climatological and Geophysical Agency (BMKG), Indonesia^2

关键词: Daily precipitations;    Dry spell frequency;    Dry spells;    Frequency patterns;    Indonesia;    Temporal characteristics;    West javas;   

Others  :  https://iopscience.iop.org/article/10.1088/1755-1315/58/1/012043/pdf
DOI  :  10.1088/1755-1315/58/1/012043

来源: IOP

【 摘 要 】

The climatology and variability of dry spells are valuable information for scientists, engineers, planners, and managers working in water-related sectors such as agriculture, ecology, hydrology, and water resources. The dry spell concerns consecutive dry days which are the largest number of consecutive days with less than 1 mm of daily precipitation within a year. The objective of this study is to analyse the spatial and temporal characteristics of dry spells and also specifically investigate the frequency patterns of the dry spell distribution based on historical observed daily precipitation from 1981 to 2010. The longest dry spell occured at Pasirukem with the length of 252 days. The northern coast of West Java have higher probabilities of dry spells more than 5, 10, 15, and 20 days.