A Recent Study of the Relationship between the Precipitation Rate over Saudi Arabia in the Fall and Climatic Indices

Table 1

The matrix of correlation coefficients between the PR over SA and the chosen climatic indices for specific locations over SA during the fall seasons of the study period (1948–2018).

Correlation coefficient	Maximum correlation coefficient and its location in SA
Climatic index	September	October	November	Fall season
AO	−0.2	+0.4	−0.4	−0.3
Region	W and NC	E	N and NW	NW and W
GSAT	−0.7	−0.7	+0.4	+0.4
Region	E and EC	SE	C and SW	C
MEI	+0.2	+0.4	+0.5	+0.5
Region	W and NC	N and NW	ALMOST	ALMOST
NAO	+0.2	−0.3	−0.3	−0.2
Region	W	C	NW andW	W
Nino 3.4	+0.4	+0.5	+0.4	+0.5
Region	W and NC	N and NW	ALMOST	ALMOST
SOI	−0.3	−0.4	−0.3	−0.4
Region	N	N and NW	W and C	C

Significance level > 99%. Significance level > 95%. N: North SA, S: South SA, W: West SA, E: East SA, C: Central SA, ALMOST: almost all of SA.