Geospatial Trends and Decadal Anomalies in Extreme Rainfall over Uganda, East Africa
Author
Source
Issue
Vol. 2016, Issue 2016 (31 Dec. 2016), pp.1-15, 15 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2016-12-15
Country of Publication
Egypt
No. of Pages
15
Main Subjects
Abstract EN
Trends and variability in series comprising the mean of fifteen highest daily rainfall intensities in each year were analyzed considering entire Uganda.
The data were extracted from high-resolution (0.5° × 0.5°) gridded daily series of the Princeton Global Forcings covering the period 1948–2008.
Variability was analyzed using nonparametric anomaly indicator method and empirical orthogonal functions.
Possible drivers of the rainfall variability were investigated.
Trends were analyzed using the cumulative rank difference approach.
Generally, rainfall was above the long-term mean from the mid-1950s to the late 1960s and again in the 1990s.
From around 1970 to the late 1980s, rainfall was characterized by a decrease.
The first and second dominant modes of variability correspond with the variation in Indian Ocean Dipole and North Atlantic Ocean index, respectively.
The influence of Niño 3 on the rainfall variability of some parts of the country was also evident.
The southern and northern parts had positive and negative trends, respectively.
The null hypothesis H0 (no trend) was collectively rejected at the significance level of 5% in the series from 7 out of 168 grid points.
The insights from the findings of this study are vital for planning and management of risk-based water resources applications.
American Psychological Association (APA)
Onyutha, Charles. 2016. Geospatial Trends and Decadal Anomalies in Extreme Rainfall over Uganda, East Africa. Advances in Meteorology،Vol. 2016, no. 2016, pp.1-15.
https://search.emarefa.net/detail/BIM-1095608
Modern Language Association (MLA)
Onyutha, Charles. Geospatial Trends and Decadal Anomalies in Extreme Rainfall over Uganda, East Africa. Advances in Meteorology No. 2016 (2016), pp.1-15.
https://search.emarefa.net/detail/BIM-1095608
American Medical Association (AMA)
Onyutha, Charles. Geospatial Trends and Decadal Anomalies in Extreme Rainfall over Uganda, East Africa. Advances in Meteorology. 2016. Vol. 2016, no. 2016, pp.1-15.
https://search.emarefa.net/detail/BIM-1095608
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-1095608