Variable

Regression coefficient

Standard error

tstatistic value

Signification probability >t


(Intercept)

90.267436358174

5.6869

8.4465

0

Dist. to the nearest coastline

0.648406525194

0.1012

6.4058

0.0000

(Dist. to the nearest coastline)^{2}

0.002046701602

0.0005

3.7318

0.0005

(Dist. to the nearest coastline)^{3}

0.000002105930

0.0000

2.7802

0.0081

Latitude

0.043177051421

0.0190

2.2712

0.0284

(Latitude)^{2}

0.000020781161

0.0000

2.3431

0.0240

(Mean Elevation)^{2}

0.000040550952

0.0000

3.7478

0.0005

(Mean Elevation)^{3}

0.000000009778

0.0000

2.5671

0.0139

Residual standard error

3.1887580414
   
degrees of freedom

41
   
Multiple R^{2}

0.923138021554
   
Fstatistic

27.259883813
   
Probability (F_statistic)

0.0000
   
 Result of the stepwise regression analysis for Zone 1 and a two year return period