dc.contributor.author | Basalirwa, Charles P. K. | |
dc.date.accessioned | 2013-05-20T13:06:40Z | |
dc.date.available | 2013-05-20T13:06:40Z | |
dc.date.issued | 1991 | |
dc.identifier.citation | Ph. D (Meteorology) Thesis | en |
dc.identifier.uri | http://erepository.uonbi.ac.ke:8080/xmlui/handle/123456789/23949 | |
dc.description | Ph.D thesis | en |
dc.description.abstract | The effective use of rainfall informations for all
water use activities can only be derived from well designed
raingauge networks. The objective of this study was to
design raingauge networks for Uganda. Two basic concepts
were used, namely: the 'minimum, and 'optimum' network
principles. Under the minimum network design, the minimum
number of raingauges that must be operated in order to
represent all the climatological divisions are determined.
The optimum network design on the other hand, constitutes
the least number of raingauges which must be operated in
order to obtain optimum rainfall informations for the
various water use activities.
Monthly rainfall records at 102 stations spanning
within the years 1940-1985 were used in the study. Data
quality control tests were used to test the quality of the
few missing estimated records and all rainfall records before
they were used in the study.
Principal component aria Lysi.s (PCA) was used first to
delineate Uganda into homogeneous rainfall subdivisions
based'on the spatial patterns of the dominant PCA modes.
Areal rainfall ~alues are usually better indicators of the
synoptic systems controlling rainfall than point values at
the individual locations. The areal rainfall estimates
derived from the simple arithmetic mean and those obtained
from PCA solutions were used to examine the skill of the
developed network designs in the representation of the
spatial and temporal rainfall characteristics at the PCA
derived climatological divisions. | en |
dc.description.sponsorship | University of Naiirobi | en |
dc.language.iso | en | en |
dc.title | Raingauge network designs for Uganda | en |
dc.type | Thesis | en |
local.publisher | Department of Meteorology, University of Nairobi | en |