Stream-lining the data

I’m a big fan of index wells.

They offer a simplified way to see the system without getting too lost in site specific data streams.

What makes for a good index well?

  • Some are located plunk dab in the middle of the perfect spot;
  • Others may aggregate data from a wide geographic area;
  • Usually they come with a long historical record,
  • And typically they are used for decision making.

Case in point is regulatory stage for the Water Conservation Area 3 portion of the Everglades. It’s computed by averaging three sites (Site 63, Site 64 and Site 65) into a single stage.

Area 3’s water depths are currently a foot deeper now than late March of last year. In terms of the annual cycle water, current stage is about a foot above the long-term low-water ebb in May and a foot below the long-term high-water crest in early October (based on the 20 year record).

As “midway” as that may seem,
For April it’s actually pretty high …

Or statistically-speaking, up in the 90th percentile.

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