Global S&T Development Trend Analysis Platform of Resources and Environment
DOI | 10.1002/joc.5957 |
El Nino-Southern Oscillation incidence over long dry sequences and their impact on soil water storage in Argentina | |
Penalba, Olga C.1,2; Pantano, Vanesa C.1,2; Spescha, Liliana B.3; Murphy, Guillermo M.3 | |
2019-03-30 | |
发表期刊 | INTERNATIONAL JOURNAL OF CLIMATOLOGY
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ISSN | 0899-8418 |
EISSN | 1097-0088 |
出版年 | 2019 |
卷号 | 39期号:4页码:2362-2374 |
文章类型 | Article |
语种 | 英语 |
国家 | Argentina |
英文摘要 | The deficit of daily precipitation, persistent over time (long dry sequences [ LDS]), causes economic losses in the east-northeast of Argentina where agriculture production is the main economic activity. For this reason, an improvement in the seasonal prediction of the frequency of precipitation is required. Among several forcings influencing the region of study, E1 Nino-Southern Oscillation (ENSO) has been identified as responsible for a great part of the inter-annual variability of precipitation. Therefore, in this study, we assess the ENSO signal on LDS and the response of soil water storage under the different phases. In order to assess this issue, daily data were used from 30 meteorological stations. Based on this information, dry sequences were quantified considering a dry day when the accumulated precipitation of two consecutive days was lower than 5 mm. From the dry sequences, two different thresholds were used to identify LDS. On one hand, the 85th percentile was selected as a spatially variable threshold and, on the other hand, 15-day length was used as a fixed one. Based on this selection, the severity and the number of LDS were analysed. In general terms, La Nina (E1 Nino) phase presents higher (lower) severity and higher (lower) probability in the occurrence of more than one LDS per season, except in winter. This result is in concordance with negative (positive) anomalies of accumulated precipitation under La Nina (E1 Nino) phase. Regarding the impact on the water balance, soil water storage responds to accumulated precipitation anomalies in all the seasons. |
英文关键词 | long dry spells remote forcing soil-atmosphere interaction |
领域 | 气候变化 |
收录类别 | SCI-E |
WOS记录号 | WOS:000465456400037 |
WOS关键词 | PLATA BASIN ; PRECIPITATION ; VARIABILITY ; TRENDS ; SPELLS |
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/181846 |
专题 | 气候变化 |
作者单位 | 1.Univ Buenos Aires, Dept Ciencias Atmosfera & Oceanos, Fac Ciencias Exactas & Nat, Intendente Guiraldes 2160,Pabellon 2,2 Floor, Buenos Aires, DF, Argentina; 2.Consejo Nacl Invest Cient & Tecn CONICET, Buenos Aires, DF, Argentina; 3.Univ Buenos Aires, Catedra Climatol & Fenol Agr, Fac Agron, Ave San Martin 4453, Buenos Aires, DF, Argentina |
推荐引用方式 GB/T 7714 | Penalba, Olga C.,Pantano, Vanesa C.,Spescha, Liliana B.,et al. El Nino-Southern Oscillation incidence over long dry sequences and their impact on soil water storage in Argentina[J]. INTERNATIONAL JOURNAL OF CLIMATOLOGY,2019,39(4):2362-2374. |
APA | Penalba, Olga C.,Pantano, Vanesa C.,Spescha, Liliana B.,&Murphy, Guillermo M..(2019).El Nino-Southern Oscillation incidence over long dry sequences and their impact on soil water storage in Argentina.INTERNATIONAL JOURNAL OF CLIMATOLOGY,39(4),2362-2374. |
MLA | Penalba, Olga C.,et al."El Nino-Southern Oscillation incidence over long dry sequences and their impact on soil water storage in Argentina".INTERNATIONAL JOURNAL OF CLIMATOLOGY 39.4(2019):2362-2374. |
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