BRAMS

 Listen to the meteors

BRAMS Data Viewer and availability tool


What is the BRAMS data Viewer?

The BRAMS data viewer is an online tool developed by Yves Geunes (BISA) which allows BRAMS users to access data archived at BISA. The user can visualize the spectrograms and download the related WAV files. By default the spectrograms are centered on the frequency of the beacon and show a frequency range of 200 Hz.


You can access the BRAMS data viewer HERE. Note that you need to be registered.


Please have a look at how to use the BRAMS data Viewer below before using it for the first time



What is the BRAMS data availability tool?

This is an online tool developed by Antoine Calegaro (Ephec Student) which allows BRAMS users to check about the availability of BRAMS data during a selected period and for selected BRAMS stations. The interface is similar to that of the BRAMS viewer.


You can access the BRAMS data availability tool HERE. Note that you need to be registered.


Please have a look at how to use the BRAMS data availability tool below before using it for the first time



How to use the BRAMS data Viewer?


  1. On top of the page are listed all BRAMS stations with existing data in the archive. Click on one or several stations for which you want to access the data.
  2. Click on the "request data" button. Two fields "date" and "time" will appear.
  3. Select a date (a calendar will appear when you click in that field) and one hour (a scrolling menu will appear) for that day.
  4. Click again on the "request data" button
  5. A window appears below with the files available for that specific hour/date (e.g. 2001-03-31 04:15). The spectrograms for a given time are presented vertically if you selected several stations. They appear horizontally for consecutive spectrograms for a given station.


If you click on one spectrogram, a larger version appears as well as a number of buttons in the top right part of the screen :


  • allows the user to loop through other spectrograms from the same station (but always within the hour you have initially selected)
  • allows the user to loop through other spectrograms from the same station (but always within the hour you have initially selected)
  • allows the user to browse through the all the selected images of one station with a small movie. Once the movie has started, a cross button appears instead. Click on the cross to stop the movie
  • allows the user to save the corresponding WAV file.
  • allows the user tao save the spectrogram itself (PNG format).
  • allows the user to exit this spectrogram screen and go back to the general BRAMS data viewer
  • allows the user to loop through spectrograms of other stations at a given time (but only for those stations you have initially selected)
  • allows the user to loop through spectrograms of other stations at a given time (but only for those stations you have initially selected)



How to use the BRAMS data availability tool?


  1. Select the time period where you want to check the availability of the BRAMS data
  2. Select the BRAMS stations
  3. Click on request data
  4. Results appear as colored bars. The color code is explained below

The color code for the bars uses 5 different colors according to the percentage of data available:

  1. green: 100% available
  2. light blue: 67% < availability < 100%
  3. yellow: 34% < availability <= 67%
  4. pink: 0% < availability <= 34%
  5. red : no data available

If you select only one day of data (e.g. from 2015-01-01 to 2015-01-02) the bars show you the availability of data using a simpler color code : red for no data and green for available data.