Côte科特迪瓦中西部极端降水指数趋势:以Lobo流域为例

F. B. Allechy, M. Y. Ta, V. Bi, F. Yapi, A. B. Koné, A. Kouadio
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引用次数: 1

摘要

位于Côte科特迪瓦中西部的Lobo流域是一个农业潜力巨大的地区,受气候变化和减少作物产量的变化的影响。利用ClimPACT2软件分析1984 - 2013年降水资料中ETCCDI极端降雨指数的变化趋势。研究表明,连续降雨日数(CWD)、降雨日数(R1mm)和年累积总降雨量(PRCPTOT)均呈减少趋势。另一方面,连续干旱天数(CDD)呈上升趋势。总体上,整个盆地降水减少,湿层序增多,干层序增多。本研究中观察到的这些不同趋势在流域的北半部更为明显。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Trend of Extreme Precipitations Indices in West-central Côte d’Ivoire: Case of the Lobo Watershed
The Lobo watershed located in the west-central part of Côte d'Ivoire is an area with high agricultural potential, influenced by climate variations and changes that reduce crop yields. The objective of this study is to analyse trends in ETCCDI extreme rainfall indices from rainfall data from 1984 to 2013 using ClimPACT2 software. This study shows that the trend of the indices: number of consecutive wet days (CWD), number of rainy days (R1mm) and the cumulative annual total rainfall (PRCPTOT) is decreasing. On the other hand, the number of consecutive dry days (CDD) is on the rise. In general, the whole basin has experienced a decrease in rainfall as well as wet sequences and an increase in dry sequences. These different trends observed in this study are more pronounced in the northern half of the watershed.
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