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Choose Data Access -> Select single experiment from either of the two Madrigal sites listed above.
- Leave "Use all Madrigal sites" selected so you search over all Madrigal sites.
- For "Instrument category" choose choose "Fabry-Perots".
- Select the "Arecibo Imaging Doppler Fabry-Perot".
- Select year 2018, month January, and day 15.
- Note that from this point on, the options are similar to the List experiment user interface.
- This time we will print the file with and without filters. Select the one file listed, then choose "Print file" and "As is".
- Next we will print the file, but filter by data quality. To learn about data quality, choose "Show plots" and "Description of data quality (FPI_DATAQUAL) parameter".
- Next choose "Print file" and "Select parameters/filters".
- Open the "Select Parameters to include" section by clicking on it.
- Click or hover on any of the parameters to see its definition.
- You could select any parameters to print, including derived ones in grey. For now select just the parameters in the file by clicking "Select all parms in original file" at the top.
- Close "Select Parameters to include" section by clicking on it, and open "Select filters to use (optional)".
- In the bottom section choose of type "FPI
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- select or type "FPI_DATAQUAL" as the filter parameter. Leave the lower limit blank, and set the upper limit to 0. This will remove all data with values above 0.
- Verify the resultant output only has values of 0 for FPI_DATAQUAL.
Metadata Access
All the metadata in Madrigal can be browsed in this section. Briefly glance at each option. The Filter String metadata is information only needed when users are writing advanced scripts to download data.
Run Models
Choose
Run Models->Run Madrigal derivation engine.This page allows user to directly run the Madrigal derivation engine. Use this page to calculate the shadow height (SDWHT) in the Geographic Coordinate parameters section, and magnetic field vector (BN,BE,BD) parameters from the Magnetic Coordinate parameters section. Look at a single point 1000 km directly above PFISR (lat 65.130, lon -147.471) at 2007-03-27 12:00:00 UT.- The Run models -> looker section is optional. This section derivers parameters that depend on a look direction, such as would be relevant to radar measurements.
- The Run models -> ISR empirical models section allows you to run an empirical model to predict the conditions around a number of ISR radars. Try it by clicking Run under Millstone Hill Radar Models. Leave all defaults, and select RUN. Select "Local time Variation" and click "generate plots".