Rainfall Trend Analysis in Uma Oya Basin, Sri Lanka, and Future Water Scarcity Problems in Perspective of Climate Variability

Table 1

Results of trend analysis for annual rainfall.

Rain gauge station	Significant (S)/insignificant (IS)	Sen’s slope Qi (mm/year)
Dyraaba Estate	IS	NA
Hilpankandura Estate	IS	NA
Kirklees Estate	S	48.0
Ledgerwatte Estate	S	59.3
Welimada Group	IS	NA