May 21, 2018

Roots of the pond apple

How do we measure the duration of drought in the swamp?

Answer: By the number of months the roots of the pond apple trees are exposed.

Bar chart showing the annual duration of deep drought
in Big Cypress Nat'l Preserve as calculated by the number
of months the roots of the pond apple trees go dry.

That happened 2 months this year.

That's about three weeks longer than normal year.


And over two months shorter than the "drought of record" in Spring 2011.

1 comment:

yan liao said...

Very impressive!