Evaluating Long-Term Trends in Annual and Seasonal Precipitation in Taiwan

Pao-Shan Yu (), Tao-Chang Yang and Chun-Chao Kuo

Water Resources Management: An International Journal, Published for the European Water Resources Association (EWRA), 2006, vol. 20, issue 6, 1007-1023

Abstract: This work studies long-term rainfall variations in Taiwan and provides local climate change analyses to global climate change. Around a century of rainfall data from 33 rain-gauges populate the database used herein. Statistical tests, such as cumulative deviations, Mann-Whitney-Pettitt statistics and the Kruskal-Wallis test, were first employed to determine whether annual rainfall series exhibit any regular trend. Analytical results indicate that the annual rainfall has increased in northern Taiwan, declined in central and southern Taiwan, and exhibited no clear tendency in Eastern Taiwan. Almost all of these rainfall series changed significantly around 1960, which date divides historical rainfall series into two sample groups. This change in the seasonal rainfall was further investigated. Copyright Springer Science+Business Media, Inc. 2006

Keywords: climate change; precipitation trend analysis; cumulative deviations; Kruskal-Wallis statistics; Mann-Whitney-Pettitt test (search for similar items in EconPapers)
Date: 2006
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Citations: View citations in EconPapers (7)

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Persistent link: https://EconPapers.repec.org/RePEc:spr:waterr:v:20:y:2006:i:6:p:1007-1023

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DOI: 10.1007/s11269-006-9020-8

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