Automated Data Plotter

This application dynamically generates many types of graphs derived from various IEM data sources. Feel free to use these generated graphics in whatever way you wish.

Reset App IEM Explorer (Simplified)

1 Select a Chart Type

Choose from available chart types:

2 Configure Chart Options

Select Station (STC000? are climate district, ST0000 state avg)

Select Radiation Source for Timeseries

Select Radiation Source for Climatology

Select Year to Plot:

Image Pixel Size @100 DPI

Image Resolution (DPI) (50 to 500)

Select Output Format:

Plot Description:

This plot presents daily estimates of solar radiation for a given year for the 'climodat' stations tracked by the IEM. These stations only report temperature, precipitation, and snowfall, but many users are interested in solar radiation data as well. So estimates are pulled from various reanalysis and forecast model analyses to generate the numbers presented. There are four sources of solar radiation made available for this plot. The HRRR data is the only one in 'real-time', the MERRAv2/NARR lag by about a month, and the ERA5 Land lags by 8-9 days.

3 Generated Chart

Based on recent timings, plot generation averages 2 seconds. Please wait while your chart is being generated...

CSV Data Excel Download

If you notice plotting issues with the image above, please contact us and provide the URL address currently shown by your web browser.

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.

26 Feb 2025: Doubling of Radiation
12 Apr 2023: Which model for radiation?
09 Dec 2014: Daily Radiation