May 8, 2015

High low (and low high)

It's hard to see water everywhere ...

And try to convince yourself it's still a drought.

The blue line on the hydrograph above shows water depth in the WCA3A portion of the Everglades over the past two years.  The horizontal color coding differentiates the vertical elevations of the ridge and slough (and tree island) landscape.  The dotted white line  shows the long-term average since 1993.  The camera indicates the time (August 2013) that the photograph below was shot in Northwest WCA, looking south.

That's the case in the deepest part of the Everglades:

Water Conservation Area 3A (WCA3A).


The wetting front is currently lapping up at the top of the Sawgrass ridges with sloughs holding water about a foot deep.  That relatively flush condition is normal for WCA3A this time of year, even if it also coincides with the annual ebb just before water table starts its annual summer rise.

Ridge and slough in Northwest WCA3A
as seen 2 feet higher than today in August 2013
 

Can you see in the hydrograph how last summer was a "low" high?

The photo above was taken during a "high" summer high (in August 2013).