- The image shows information about the PDO Index over the period from 1930 and 2010.
- The color red is primarily located in warm regime over the period from 1930 to 1950, and the period between 1980 and 2000. On the other hand, the color blue is located in cool regime over the period from 1950 to 1970. Moreover, the PDO index in 1940 account for the highest which is 14 whereas the figure in 1960 account for the lowest which is -10.
- After analyzing the key aspects, it can be concluded that this image shows crucial information about the PDO Index fluctuation which is strongly supported by data and facts.