Analyses of Precipitation and Evapotranspiration Changes Across the Lake Kyoga Basin in East Africa
This study analyzed changes in CenTrends gridded precipitation (1961–2015) and Potential Evapotranspiration (PET; 1961–2008) across the Lake Kyoga Basin (LKB). PET was computed from gridded temperature of the Princeton Global Forcings. Correlation between precipitation or PET and climate indices was...
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ftdoajarticles:oai:doaj.org/article:7e9f3c6d672c44b691e529b5dac82557 2023-05-15T17:34:37+02:00 Analyses of Precipitation and Evapotranspiration Changes Across the Lake Kyoga Basin in East Africa Charles Onyutha Grace Acayo Jacob Nyende 2020-04-01T00:00:00Z https://doi.org/10.3390/w12041134 https://doaj.org/article/7e9f3c6d672c44b691e529b5dac82557 EN eng MDPI AG https://www.mdpi.com/2073-4441/12/4/1134 https://doaj.org/toc/2073-4441 doi:10.3390/w12041134 2073-4441 https://doaj.org/article/7e9f3c6d672c44b691e529b5dac82557 Water, Vol 12, Iss 1134, p 1134 (2020) precipitation variability potential evapotranspiration climate indices trend analyses climate variability Lake Kyoga Basin Hydraulic engineering TC1-978 Water supply for domestic and industrial purposes TD201-500 article 2020 ftdoajarticles https://doi.org/10.3390/w12041134 2022-12-31T15:35:23Z This study analyzed changes in CenTrends gridded precipitation (1961–2015) and Potential Evapotranspiration (PET; 1961–2008) across the Lake Kyoga Basin (LKB). PET was computed from gridded temperature of the Princeton Global Forcings. Correlation between precipitation or PET and climate indices was analyzed. PET in the Eastern LKB exhibited an increase ( p > 0.05). March–April–May precipitation decreased ( p > 0.05) in most parts of the LKB. However, September–October–November (SON) precipitation generally exhibited a positive trend. Rates of increase in the SON precipitation were higher in the Eastern part where Mt. Elgon is located than at other locations. Record shows that Bududa district at the foot of Mt. Elgon experienced a total of 8, 5, and 6 landslides over the periods 1818–1959, 1960–2009, and 2010–2019, respectively. It is highly probable that these landslides have recently become more frequent than in the past due to the increasing precipitation. The largest amounts of variance in annual precipitation (38.9%) and PET (41.2%) were found to be explained by the Indian Ocean Dipole. These were followed by precipitation (17.9%) and PET (21.9%) variance explained by the Atlantic multidecadal oscillation, and North Atlantic oscillation, respectively. These findings are vital for predictive adaptation to the impacts of climate variability on water resources. Article in Journal/Newspaper North Atlantic North Atlantic oscillation Directory of Open Access Journals: DOAJ Articles Indian Water 12 4 1134 |
institution |
Open Polar |
collection |
Directory of Open Access Journals: DOAJ Articles |
op_collection_id |
ftdoajarticles |
language |
English |
topic |
precipitation variability potential evapotranspiration climate indices trend analyses climate variability Lake Kyoga Basin Hydraulic engineering TC1-978 Water supply for domestic and industrial purposes TD201-500 |
spellingShingle |
precipitation variability potential evapotranspiration climate indices trend analyses climate variability Lake Kyoga Basin Hydraulic engineering TC1-978 Water supply for domestic and industrial purposes TD201-500 Charles Onyutha Grace Acayo Jacob Nyende Analyses of Precipitation and Evapotranspiration Changes Across the Lake Kyoga Basin in East Africa |
topic_facet |
precipitation variability potential evapotranspiration climate indices trend analyses climate variability Lake Kyoga Basin Hydraulic engineering TC1-978 Water supply for domestic and industrial purposes TD201-500 |
description |
This study analyzed changes in CenTrends gridded precipitation (1961–2015) and Potential Evapotranspiration (PET; 1961–2008) across the Lake Kyoga Basin (LKB). PET was computed from gridded temperature of the Princeton Global Forcings. Correlation between precipitation or PET and climate indices was analyzed. PET in the Eastern LKB exhibited an increase ( p > 0.05). March–April–May precipitation decreased ( p > 0.05) in most parts of the LKB. However, September–October–November (SON) precipitation generally exhibited a positive trend. Rates of increase in the SON precipitation were higher in the Eastern part where Mt. Elgon is located than at other locations. Record shows that Bududa district at the foot of Mt. Elgon experienced a total of 8, 5, and 6 landslides over the periods 1818–1959, 1960–2009, and 2010–2019, respectively. It is highly probable that these landslides have recently become more frequent than in the past due to the increasing precipitation. The largest amounts of variance in annual precipitation (38.9%) and PET (41.2%) were found to be explained by the Indian Ocean Dipole. These were followed by precipitation (17.9%) and PET (21.9%) variance explained by the Atlantic multidecadal oscillation, and North Atlantic oscillation, respectively. These findings are vital for predictive adaptation to the impacts of climate variability on water resources. |
format |
Article in Journal/Newspaper |
author |
Charles Onyutha Grace Acayo Jacob Nyende |
author_facet |
Charles Onyutha Grace Acayo Jacob Nyende |
author_sort |
Charles Onyutha |
title |
Analyses of Precipitation and Evapotranspiration Changes Across the Lake Kyoga Basin in East Africa |
title_short |
Analyses of Precipitation and Evapotranspiration Changes Across the Lake Kyoga Basin in East Africa |
title_full |
Analyses of Precipitation and Evapotranspiration Changes Across the Lake Kyoga Basin in East Africa |
title_fullStr |
Analyses of Precipitation and Evapotranspiration Changes Across the Lake Kyoga Basin in East Africa |
title_full_unstemmed |
Analyses of Precipitation and Evapotranspiration Changes Across the Lake Kyoga Basin in East Africa |
title_sort |
analyses of precipitation and evapotranspiration changes across the lake kyoga basin in east africa |
publisher |
MDPI AG |
publishDate |
2020 |
url |
https://doi.org/10.3390/w12041134 https://doaj.org/article/7e9f3c6d672c44b691e529b5dac82557 |
geographic |
Indian |
geographic_facet |
Indian |
genre |
North Atlantic North Atlantic oscillation |
genre_facet |
North Atlantic North Atlantic oscillation |
op_source |
Water, Vol 12, Iss 1134, p 1134 (2020) |
op_relation |
https://www.mdpi.com/2073-4441/12/4/1134 https://doaj.org/toc/2073-4441 doi:10.3390/w12041134 2073-4441 https://doaj.org/article/7e9f3c6d672c44b691e529b5dac82557 |
op_doi |
https://doi.org/10.3390/w12041134 |
container_title |
Water |
container_volume |
12 |
container_issue |
4 |
container_start_page |
1134 |
_version_ |
1766133511998144512 |