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. Reset App. The IEM Explorer application offers a simplified frontend to some of these autoplots.
Second, select specific chart options::
Plot Description:Departure from climatology metrics have an annual signal that is a function of the climatology. This plot shows the distribution of departure values.
SPI is the standardized precipitation index. This is computed by using the NCEI 1991-2020 climatology to provide the average accumulation and the observed data to provide the standard deviation.
The Minimum Possible value presented is a function of the statistical metric being computed. For example, if the climatology accumation is 2 inches, the max negative departure can only be two inches.
Based on a sampling of recent timings for this application, plot generation time has averaged 6 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.
- 03 Mar 2022: SPI Climatology