Historical Rainfall and Evapotranspiration Changes over Mpologoma Catchment in Uganda
Joint Authors
Abebe, Adane
Mubialiwo, Ambrose
Onyutha, Charles
Source
Issue
Vol. 2020, Issue 2020 (31 Dec. 2020), pp.1-19, 19 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2020-05-28
Country of Publication
Egypt
No. of Pages
19
Main Subjects
Abstract EN
Changes in the long-term (1948–2016) rainfall and evapotranspiration over Mpologoma catchment were analysed using gridded (0.25° × 0.25°) Princeton Global Forcing data.
Trend and variability were assessed using a nonparametric approach based on the cumulative sum of the difference between exceedance and nonexceedance counts of data.
Annual and March-May (MAM) rainfall displayed a positive trend (p<0.05), whereas October-December (OND) and June-September rainfall exhibited negative trends with p>0.05 and p<0.05, respectively.
Positive subtrends in rainfall occurred in the 1950s and from the mid-2000s till 2016; however, negative subtrends existed between 1960 till around 2005.
Seasonal evapotranspiration exhibited a positive trend (p>0.05).
For the entire period (1948–2016), there was no negative subtrend in the OND and MAM evapotranspiration.
Rainfall and evapotranspiration trends and oscillatory variation in subtrends over multidecadal time scales indicate the need for careful planning of predictive adaptation to the impacts of climate variability on environmental applications which depend on water balance in the Mpologoma catchment.
It is recommended that future studies quantify possible contributions of human factors on the variability of rainfall and evapotranspiration.
Furthermore, climate change impacts on rainfall and evapotranspiration across the study area should be investigated.
American Psychological Association (APA)
Mubialiwo, Ambrose& Onyutha, Charles& Abebe, Adane. 2020. Historical Rainfall and Evapotranspiration Changes over Mpologoma Catchment in Uganda. Advances in Meteorology،Vol. 2020, no. 2020, pp.1-19.
https://search.emarefa.net/detail/BIM-1127163
Modern Language Association (MLA)
Mubialiwo, Ambrose…[et al.]. Historical Rainfall and Evapotranspiration Changes over Mpologoma Catchment in Uganda. Advances in Meteorology No. 2020 (2020), pp.1-19.
https://search.emarefa.net/detail/BIM-1127163
American Medical Association (AMA)
Mubialiwo, Ambrose& Onyutha, Charles& Abebe, Adane. Historical Rainfall and Evapotranspiration Changes over Mpologoma Catchment in Uganda. Advances in Meteorology. 2020. Vol. 2020, no. 2020, pp.1-19.
https://search.emarefa.net/detail/BIM-1127163
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-1127163