Analysis and Predictability of Dry Spell Lengths Observed in Synoptic Stations of Benin Republic (West Africa)

Pub Date : 2021-01-01 DOI:10.4236/ajcc.2021.104030

M. Agbazo, J. Adéchinan, G. K. N'Gobi, Joseph Bessou

引用次数: 2

Abstract

The complex behavior and predictability of the Dry Spell Lengths (DSL) series obtained in Benin synoptic stations, from 1951 to 2010 are analyzed in this paper using a fractal approach. The synoptic stations are located in Cotonou, Bohicon, Save (subequatorial climate), and Parakou, Natitingou, Kandi (Sudanian climate). The DSLs are computed by considering four thresholds level, R0 = {1.0, 1.5, 2.0 and 5.0} mm/day. The fractal trace is estimated for dry spell density by the mean of the “Dry Spell Spell” (DSS) n-index. The rescaled range method is used to determine the predictability of DSL. By ana-lyzing the DSS, results show that low DSS n-index values (n-index < 0.4) are more favored in the northern part of Benin than in the southern region,

查看原文

微信好友朋友圈 QQ好友复制链接

本刊更多论文

西非贝宁共和国天气站观测的干旱期长度分析及可预测性

本文利用分形方法分析了1951 - 2010年贝宁天气站观测到的干旱期长度(DSL)序列的复杂行为和可预测性。天气观测站位于Cotonou, Bohicon, Save(亚赤道气候)和Parakou, Natitingou, Kandi(苏丹气候)。考虑四个阈值水平，R0 ={1.0, 1.5, 2.0和5.0}mm/day，计算dsl。通过“干旱指数”(DSS) n指数的均值估计了干旱密度的分形轨迹。采用重标量程法确定DSL的可预测性。通过对DSS的分析，结果表明，低DSS n指数值(n指数< 0.4)在贝宁北部比南部更受青睐;

本文章由计算机程序翻译，如有差异，请以英文原文为准。

求助全文

约1分钟内获得全文去求助