Global S&T Development Trend Analysis Platform of Resources and Environment
DOI | 10.1002/joc.5427 |
A new assessment in total and extreme rainfall trends over central and southern Peruvian Andes during 1965-2010 | |
Heidinger, Haline1,2; Carvalho, Leila1,2; Jones, Charles1,2; Posadas, Adolfo3; Quiroz, Roberto4 | |
2018-04-01 | |
发表期刊 | INTERNATIONAL JOURNAL OF CLIMATOLOGY |
ISSN | 0899-8418 |
EISSN | 1097-0088 |
出版年 | 2018 |
卷号 | 38页码:E998-E1015 |
文章类型 | Article |
语种 | 英语 |
国家 | USA; Brazil; Peru |
英文摘要 | Understanding the spatio-temporal variability of rainfall over mountainous regions such as the Andes is crucial for the maintenance of water resources and ecosystems. This study provided a comprehensive analysis of the signal, statistical significance and spatial pattern of rainfall trends in central and southern Peruvian Andes (CSPA) from 1965 to 2010. Rainfall from 47 quality-controlled rain gauge stations was examined using the hydrologic calendar year. Total and extreme rainfall indices proposed by the Expert Team on Climate Change Detection and Indices (ETCCDI) were calculated and trends were examined with Mann-Kendall test and Sen's slope estimator. Significant regional patterns of changes in rainfall extremes were investigated and compared with previous studies. Four major regions of stations were identified based on principal component analysis and clustering techniques: Amazon, central Pacific, southern Pacific and Titicaca basins. Statistically significant trend patterns showed that the annual total rainfall has decreased in the Amazon basin, despite the increase in the number of rainy days and some extreme rainfall indices. Decrease in 1-day and 5-day yearly maximum rainfall was observed in central Pacific, along with an increase in the number of wet days. Positive trends in indices related to the intensity of very strong daily rainfall were detected in southern Pacific. Titicaca basin showed an increase in the intensity of rainfall extremes. Rainfall variability and trends were evaluated during contrasting El Nino-Southern Oscillation (ENSO) and Pacific Decadal Oscillation (PDO). Most stations in the CSPA exhibited positive (negative) anomaly of total and extreme rainfall indices (consecutive dry days) during La Nina (El Nino) years. Positive (negative) anomalies of annual total rainfall and consecutive dry days during positive (negative) PDO occurred in the Amazon, southern Pacific and Titicaca basins, respectively. The ENSO-PDO conditions may have influenced the complex and mostly non-statistically significant long-term trends in CSPA. |
英文关键词 | climate change rainfall trends precipitation changes extreme rainfall extreme events Andes Altiplano Peru |
领域 | 气候变化 |
收录类别 | SCI-E |
WOS记录号 | WOS:000431999600067 |
WOS关键词 | CLIMATE DATA SERIES ; MAXIMAL T-TEST ; 3-6 JUNE 1997 ; MANN-KENDALL ; INTERDECADAL VARIABILITY ; AMERICAN ALTIPLANO ; F-TEST ; PRECIPITATION ; TEMPERATURE ; INDEXES |
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/37043 |
专题 | 气候变化 |
作者单位 | 1.UCSB, Dept Geog, 1832 Ellison Hall, Santa Barbara, CA 93106 USA; 2.UCSB, Earth Res Inst, Santa Barbara, CA USA; 3.Precis Agr & Climate Change Consulting, Sao Paulo, Brazil; 4.Int Potato Ctr CIP, Lima, Peru |
推荐引用方式 GB/T 7714 | Heidinger, Haline,Carvalho, Leila,Jones, Charles,et al. A new assessment in total and extreme rainfall trends over central and southern Peruvian Andes during 1965-2010[J]. INTERNATIONAL JOURNAL OF CLIMATOLOGY,2018,38:E998-E1015. |
APA | Heidinger, Haline,Carvalho, Leila,Jones, Charles,Posadas, Adolfo,&Quiroz, Roberto.(2018).A new assessment in total and extreme rainfall trends over central and southern Peruvian Andes during 1965-2010.INTERNATIONAL JOURNAL OF CLIMATOLOGY,38,E998-E1015. |
MLA | Heidinger, Haline,et al."A new assessment in total and extreme rainfall trends over central and southern Peruvian Andes during 1965-2010".INTERNATIONAL JOURNAL OF CLIMATOLOGY 38(2018):E998-E1015. |
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