Past and present spatial precipitation variability in the upper middle catchment of the Olifants River basin

German K. Nkhonjera, Megersa O. Dinka

Research output: Contribution to journalConference articlepeer-review

Abstract

Within the context of catchment hydrology, using the Soil and Water Assessment Tool (SWAT) model, this paper attempts to assess the past and present spatial precipitation variability in the upper middle catchment (UMC) of the Olifants River basin. The study shows a strong decreasing trend of east-to-west direction of spatial precipitation with most rainfall concentrated in the eastern part of the area. Within the western part of the UMC, we also noted another decreasing trend of precipitation from south to north with northern areas of the study area receiving the least amount of rainfall. This localized spatial precipitation variability in the area, from past and present, underlines the importance of studies targeting localized areas within a larger and wider river basin like the Olifants where such variations could otherwise been overlooked.

Original languageEnglish
Article number012212
JournalIOP Conference Series: Earth and Environmental Science
Volume467
Issue number1
DOIs
Publication statusPublished - 8 Apr 2020
Event4th International Conference on Energy Engineering and Environmental Protection, EEEP 2019 - Xiamen, China
Duration: 19 Nov 201921 Nov 2019

ASJC Scopus subject areas

  • General Environmental Science
  • General Earth and Planetary Sciences

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