“Ah, but I may as well try and catch the wind.” (Donovan, 1973)
By Dr. John Happs
In reality there is no such thing as a universal measure of sea level because there is no fixed datum against which measured levels can be compared. Similarly, the term “Global Average Sea Level” is simply meaningless and claims that sea level is rising at an unprecedented rate worldwide are questionable, if not deliberately alarmist.
The average depth of the world’s oceans is around 4,000 metres and for anyone to claim they know that global sea level has changed by 2 or 3 cm over the last few years requires pure imagination, especially in light of the many factors that influence relative sea level.
The array of factors that influence sea level measurements at any particular time and place include: Continue reading “MEASURING SEA LEVEL”