Equal degree of cloudiness is represented by an isoneph chart.
An isoneph chart is a map that shows areas of equal cloudiness. The term "isoneph" comes from the Greek words "isos," meaning equal, and "nephe," meaning cloud. On an isoneph chart, lines are drawn to connect points that have the same amount of cloud cover.
For example, on an isoneph chart, areas with 50% cloud cover will be connected by a line, and areas with 70% cloud cover will be connected by another line. The lines allow meteorologists to easily identify areas of similar cloud cover, which can be helpful in predicting weather patterns.
In summary, equal degree of cloudiness is represented by an isoneph chart, which is a map that shows areas of equal cloud cover by connecting points with the same amount of cloud cover with lines.