Versions Compared

Old Version 6

changes.mady.by.user Bill Rideout

Saved on

compared with

New Version 7

changes.mady.by.user Bill Rideout

Saved on

Key

  • This line was added.
  • This line was removed.
  • Formatting was changed.

...

  1. Start at any Madrigal site above (SRI, CEDAR, Millstone, or EISCAT).

  2. Use Full Access Data and then Browse for Individual Madrigal Experiments. Search for all instruments that were running on 2013-01-11. Use the default All Madrigal Sites option. Note that data from many different Madrigal sites appears, not just from the site you started with.

  3. Select the EISCAT Svalbard experiment that was running on  2013-01-11, and do the following with that experiment:

    1. Determine how many data files there are for that experiment, and how they differ.

    2. Download one of the files is ascii format by using the Download file link, and sticking with the default Simple column-formated ascii option. Remember that this option does not filter the data, and no derived parameters will be included. Open the downloaded file with a text editor to make sure its easy to understand and parse.

    3. Madrigal administrators can add plots and links to each Madrigal experiment. Click on the plots from that experiment.

    4. For the default file for the 42 meter fixed antenna, choose "Print file as ascii (isprint)". This link allows you print both measured and derived parameters. For this file, choose time parameters (year, month, day, hour, min, sec), geographic parameters (elm, azm, gdlat, glon, gdalt), geophysical parameter (kp), and I. S. Radar Basic Parameters (ne, dne, ti, dti, te, dte). Which of these parameters are in the file, and which are derived?

    5. Repeat the above with headers off and missing data replaced with the string NaN.

    6. Save the result in a file using the Save text to file button.

    7. Next, we'll try to filter the data. There are some standards filter at the top of the web page, such as elevation or altitude. Just under them are free-form filters that allow filtering using any parameter. First, apply a filter to eliminate elevations under 75 degrees. Look at the resulting data to be sure all data with elevation less than 75 degrees is eliminated. Add a filter so that only data where where te / dte is greater than 10.0 is printed (that is, the error in te is less than one-tenth the measured value).

Run Models

  1. Use the Madrigal page Run Models->Calculate any Madrigal parameter for a given time and range of lat, lon, and alt to calculate the shadow height (SDWHT) and magnetic field vector (BN,BE,BD) 1000 km directly above PFISR Svalbard (lat 65.13081, lon -147.47116) at 20072013-03-27 1201 00:00:00 UT.