A Preliminary Appraisal of the Effect of Pumping on Seawater Intrusion and Upconing in a Small Tropical Island Using 2D Resistivity Technique

Table 1

Resistivity values of soil saturated with freshwater and seawater.

Number	Water type	Electrode radius (m)	Length (m)	Resistance	Resistivity (m)
a	Seawater	0.0165	0.053	240.64	3.9
b	Seawater	0.0165	0.087	507.81	5.0
c	Seawater	0.0165	0.053	367.85	5.9
d	Mixed	0.0255	0.039	221.39	11.6
e	Mixed	0.0255	0.039	508.67	26.6
f	Mixed	0.0255	0.039	512.72	26.8
g	Freshwater	0.0165	0.087	3536.58	34.8
h	Freshwater	0.0255	0.039	680.07	35.6
i	Freshwater	0.0255	0.039	1307.56	68.5
j	Freshwater	0.0255	0.039	1411.35	73.9
k	Natural soil	0.0255	0.039	37037.04	1939.0
l	Natural soil	0.0165	0.053	35714.29	576.1