Collier County KBDI Cheat Sheet

Meteorological drought is upon us.

All you have to do is look at the KBDI map to know.

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This map updates daily

But how good is a map really if you can’t place the current value relative to the statistical framework and historical parade of data that came before?

The images below do just that.

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I’ll keep this graph updated weekly.

The above graph shows the rise and fall of the Keech Byram Drought Index (KBDI) for Collier County over the past three years. The black line shows the KBDI value, September 2009 to present.  The color coding, i.e. horizontal layers behind, is identical to the color scheme used on the Florida Forest Service’s famous map. The shading, i.e. degree of fading, shows the 11-year historical statistics, 2000 to present, and the dotted white line shows the median value over that period of time.  The lower the KBDI index (blue and green range) the lower the level of meteorologic drought.

The power of this graph is that it paints the point relative to its statistical range.

But what if you want to look back even further?

That’s where the historical calendar comes into play.

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I’ll update this calendar weekly, too.

The calendar reads like the pages of a book:

Chronologically by years down and months of the year (from January to December) across. Similar to the graph, it is color coded to match the map.  The thin line of blue and green points indicate periods of regular rain whereas yawning lines of red and purple points indicate times of extreme meteorologic drought.

You’ve heard of the rug that ties the room together.

The graph and calendar do the same thing for the map.

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