Reunion is famous for its rainfall. How much rain? you might ask. A lot! I reply. A mind-boggling amount of rain falls in the mountainous slopes of Reunion.
NOTE: in elementary math class, we teach kids to create tables like this, and how to select columns, rows, headings, units and so on to best display the data. Here I have chosen time periods, days, inches and years. The years are provided in order to emphasize that this rainfall business is not a one-time fluke!
Here are some rainfall world records held by Reunion Island:
|12 hour|| |
|24 hours|| |
|48 hours|| |
|72 hours|| |
|96 hours|| |
|240 hours|| |
|720 hours|| |
|8760 hours|| |
Now just for fun, let's see if we can plot these values on a graph. We derive some data points by dividing record rainfall (column C) by the hours (column A). We can now show Inches of Rainfall per Hour.
NOTE: in math class, we teach kids how to create a variety of charts and graphs, and how to select the right chart to best display the data. Although a spreadsheet tool can "create" a graph for you, YOU need to decide what data you want to emphasize.
While I think about this, take a break for a very nice illustrated photo journal of Reunion.
OK, we are back and I have come up with a new way to present the annual rainfall records:
- the blue area represents record rainfall, from the data table above
- the yellow area is the average rainfall on Reunion (not shown in the table)
- the red area at bottom right is average rainfall in San Diego where Excel Math is located
[Click the chart for a larger version]
What can we learn from this? On Reunion Island you'd better check the weather before leaving the house.