Arid
DOI10.1002/joc.4438
Trends in mean and extreme precipitation in the Mount Kenya region from observations and reanalyses
Schmocker, J.1; Liniger, H. P.1,2; Ngeru, J. N.3; Brugnara, Y.1,4; Auchmann, R.1,4; Broennimann, S.1,4
通讯作者Broennimann, S.
来源期刊INTERNATIONAL JOURNAL OF CLIMATOLOGY
ISSN0899-8418
EISSN1097-0088
出版年2016
卷号36期号:3页码:1500-1514
英文摘要

Land and water management in semi-arid regions requires detailed information on precipitation distribution, including extremes, and changes therein. Such information is often lacking. This paper describes statistics of mean and extreme precipitation in a unique data set from the Mount Kenya region, encompassing around 50 stations with at least 30 years of data. We describe the data set, including quality control procedures and statistical break detection. Trends in mean precipitation and extreme indices calculated from these data for individual rainy seasons are compared with corresponding trends in reanalysis products. From 1979 to 2011, mean precipitation decreased at 75% of the stations during the long rains’ (March to May) and increased at 70% of the stations during the short rains’ (October to December). Corresponding trends are found in the number of heavy precipitation days, and maximum of consecutive 5-day precipitation. Conversely, an increase in consecutive dry days within both main rainy seasons is found. However, trends are only statistically significant in very few cases. Reanalysis data sets agree with observations with respect to interannual variability, while correlations are considerably lower for monthly deviations (ratios) from the mean annual cycle. While some products well reproduce the rainfall climatology and some the spatial trend pattern, no product reproduces both.


英文关键词precipitation extremes Kenya precipitation observations
类型Article
语种英语
国家Switzerland ; Kenya
收录类别SCI-E
WOS记录号WOS:000371541400034
WOS关键词HIGHLAND-LOWLAND SYSTEM ; EQUATORIAL INDIAN-OCEAN ; WATER-RESOURCES ; CIRCULATION MECHANISMS ; SOUTHERN-OSCILLATION ; CLIMATE ANOMALIES ; EAST-AFRICA ; RAINFALL ; TEMPERATURE ; IMPACTS
WOS类目Meteorology & Atmospheric Sciences
WOS研究方向Meteorology & Atmospheric Sciences
资源类型期刊论文
条目标识符http://119.78.100.177/qdio/handle/2XILL650/193701
作者单位1.Univ Bern, Inst Geog, Hallerstr 12, CH-3012 Bern, Switzerland;
2.Univ Bern, Ctr Dev & Environm, Hallerstr 12, CH-3012 Bern, Switzerland;
3.Ctr Training & Integrated Res ASAL Dev, Nanyuki, Kenya;
4.Univ Bern, Oeschger Ctr Climate Change Res, Hallerstr 12, CH-3012 Bern, Switzerland
推荐引用方式
GB/T 7714
Schmocker, J.,Liniger, H. P.,Ngeru, J. N.,et al. Trends in mean and extreme precipitation in the Mount Kenya region from observations and reanalyses[J],2016,36(3):1500-1514.
APA Schmocker, J.,Liniger, H. P.,Ngeru, J. N.,Brugnara, Y.,Auchmann, R.,&Broennimann, S..(2016).Trends in mean and extreme precipitation in the Mount Kenya region from observations and reanalyses.INTERNATIONAL JOURNAL OF CLIMATOLOGY,36(3),1500-1514.
MLA Schmocker, J.,et al."Trends in mean and extreme precipitation in the Mount Kenya region from observations and reanalyses".INTERNATIONAL JOURNAL OF CLIMATOLOGY 36.3(2016):1500-1514.
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