Automated Data Plotter

This application dynamically generates many types of graphs. These graphs are derived from processing of various data sources done by the IEM. Please feel free to use these generated graphics in whatever way you wish.

First, select a chart type::

Only show options that also work outside Midwest US

Second, select specific chart options::

Select Station:
Select Year to Plot
Which Humidity Variable to Compute?
Image Resolution (DPI)
Select Output Format

Plot Description:

This plot presents one of two metrics indicating daily humidity levels as reported by a surface weather station. The first being mixing ratio, which is a measure of the amount of water vapor in the air. The second being vapor pressure deficit, which reports the difference between vapor pressure and saturated vapor pressure. The vapor pressure calculation shown here makes no accounting for leaf tempeature. The saturation vapor pressure is computed by the Tetens formula (Buck, 1981).
On 22 June 2016, this plot was modified to display the range of daily averages and not the range of instantaneous observations.

Based on a sampling of recent timings for this application, plot generation time has averaged 13 seconds. Hold on for the plot is generating now!

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IEM Daily Features using this plot

The IEM Daily Features found on this website often utilize plots found on this application. Here is a listing of features referencing this plot type.