Global S&T Development Trend Analysis Platform of Resources and Environment
DOI | 10.1002/joc.5110 |
Rainfall variability and trend analysis in coastal arid Ecuador | |
Garcia-Garizabal, Iker1,2 | |
2017-11-15 | |
发表期刊 | INTERNATIONAL JOURNAL OF CLIMATOLOGY
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ISSN | 0899-8418 |
EISSN | 1097-0088 |
出版年 | 2017 |
卷号 | 37期号:13 |
文章类型 | Article |
语种 | 英语 |
国家 | Spain; Brazil |
英文摘要 | The creation of baseline climate series is the first step towards the analysis of climate characteristics and behaviour in any region of the world. The objective of this article is to construct homogeneous precipitation series for the period 1982-2011, for the study of its spatial distribution and temporal evolution (dynamics) in the Province of Santa Elena, most occidental region of continental Ecuador. Data from 22 rainfall stations at the study location enabled the construction of five precipitation series using statistical and correlation techniques to complete information gaps. Precipitations present irregular temporal and spatial variation throughout the year, with a wet season between December and May. The December-January-February (DJF) and March-April-May (MAM) trimesters account for 59.7 and 39.1 of annual rainfall. The dry season, between June and November, presents almost zero rainfall. Small precipitations were also identified in coastal, topographically low areas, with precipitations more frequent events towards the continental region. Throughout the years, there has been high variability in precipitations, with the occurrence of wet-dry episodes associated with the El Nino-La Nina' events, which were correlated with the sea surface temperature values of the Oceanic Nino Index. Trend analysis detected an average increase in rainfall of 2.1 mmyear(-1) in the Province, however, the trimestral rates oscillated between 2.2 and 4.3 mmquart(-1). The construction of these precipitation series has been an important step for the spatial-temporal characterization of this peculiar tropical climate region that presents arid characteristics. These series can be applied to base scenarios for the development of climate studies and water resource management in the region. |
英文关键词 | precipitation homogenization quality control climate South America ENSO |
领域 | 气候变化 |
收录类别 | SCI-E |
WOS记录号 | WOS:000414329800011 |
WOS关键词 | HUMBOLDT CURRENT SYSTEM ; LONG-TERM TRENDS ; CENTRAL CHILE ; CLIMATE-CHANGE ; EL-NINO ; FREQUENCY-ANALYSIS ; TROPICAL ANDES ; SOUTH-AMERICA ; F-TEST ; TEMPERATURE |
WOS类目 | Meteorology & Atmospheric Sciences |
WOS研究方向 | Meteorology & Atmospheric Sciences |
引用统计 | |
文献类型 | 期刊论文 |
条目标识符 | http://119.78.100.173/C666/handle/2XK7JSWQ/36988 |
专题 | 气候变化 |
作者单位 | 1.Spanish Natl Inst Agr & Food Res & Technol INIA, Ctra Coruna,Km 7,5, Madrid 28040, Spain; 2.Univ Fed Paraiba, Dept Renewable Energy Engn, Ctr Alternat & Renewable Energy, Cx Postal 5115, BR-58051900 Joao Pessoa, Paraiba, Brazil |
推荐引用方式 GB/T 7714 | Garcia-Garizabal, Iker. Rainfall variability and trend analysis in coastal arid Ecuador[J]. INTERNATIONAL JOURNAL OF CLIMATOLOGY,2017,37(13). |
APA | Garcia-Garizabal, Iker.(2017).Rainfall variability and trend analysis in coastal arid Ecuador.INTERNATIONAL JOURNAL OF CLIMATOLOGY,37(13). |
MLA | Garcia-Garizabal, Iker."Rainfall variability and trend analysis in coastal arid Ecuador".INTERNATIONAL JOURNAL OF CLIMATOLOGY 37.13(2017). |
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