Maps

Nitrate

Jan Feb Mar Apr May Jun
Nitrate 1991-1 Nitrate 1991-2 Nitrate 1991-3 Nitrate 1991-4 Nitrate 1991-5 Nitrate 1991-6
 
July Aug Sep Oct Nov Dec
Nitrate 1991-7 Nitrate 1991-8 Nitrate 1991-9 Nitrate 1991-10 Nitrate 1991-11 Nitrate 1991-12

Phosphate

Jan Feb Mar Apr May Jun
Phosphate 1991-1 Phosphate 1991-2 Phosphate 1991-3 Phosphate 1991-4 Phosphate 1991-5 Phosphate 1991-6
 
July Aug Sep Oct Nov Dec
Phosphate 1991-7 Phosphate 1991-8 Phosphate 1991-9 Phosphate 1991-10 Phosphate 1991-11 Phosphate 1991-12

Silicate

Jan Feb Mar Apr May Jun
Silicate 1991-1 Silicate 1991-2 Silicate 1991-3 Silicate 1991-4 Silicate 1991-5 Silicate 1991-6
 
July Aug Sep Oct Nov Dec
Silicate 1991-7 Silicate 1991-8 Silicate 1991-9 Silicate 1991-10 Silicate 1991-11 Silicate 1991-12

DIC

Jan Feb Mar Apr May Jun
DIC 1991-1 DIC 1991-2 DIC 1991-3 DIC 1991-4 DIC 1991-5 DIC 1991-6
 
July Aug Sep Oct Nov Dec
DIC 1991-7 DIC 1991-8 DIC 1991-9 DIC 1991-10 DIC 1991-11 DIC 1991-12