can someone please give me a definition of what exactly this is? i just created a table but need to know what the numbers mean and googling is useless, see attached table, for speaking purposes, number 5 which is 43' to 44', what is the 12,164.09 area????
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My understanding of these areas is that if you imagine a series of concentric circles the lowest value i.e.Number 1 represents the smallest circle. Number 2 represents the annular area between circle 1 and 2, Number 3 is the annular area between 2 and 3 etc.
Thus the area for Number 5 only represents the area between 44' and 45' (so for say a flood level of 45' the area flooded would be the sum of the areas 1 to 5) and the total of all the areas should equal the total surface area (2D)
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