Users of Cluster WBD data, whether obtained from this website or from one of the links under "Data & Tools" -> "Data Archives" in the menu, are encouraged to consult the following documents, which are archived at the Cluster and Double Star Science Archive (CSA) (https://www.cosmos.esa.int/web/csa/access), and from this website via the links below:

1. User Guide to the WBD Measurements in the Cluster Active Archive (CAA): This guide provides comprehensive information about the WBD instrument and its various modes and an explanation of the data contained in the WBD CDF and CEF data files. It also contains a definition of the orientation angles contained in the archive files, as well as a figure illustrating these angles. Descriptions of the WBD overview and high resolution spectrograms are also provided. Recommendations on how to effectively use the WBD data are provided at the end of this document.
2. Calibration Report of the WBD Measurements in the Cluster Active Archive (CAA): This document provides an explanation of the steps taken in order to take the raw WBD data (integer values of 0 to 255 obtained on the spacecraft) to come up with the calibrated electric (mV/m) and magnetic (nT) field. Also, it provides a short tutorial on how to take these data from the time domain into the frequency domain via a Fast Fourier Transform. For those users interested in cross calibrations of WBD data with other Cluster instrument data, Section 6 provides a brief description of what has been done in this regard.
3. Cluster Active Archive: Interface Control Document for WBD: This document provides the broad outline of the archiving of the data from WBD on Cluster at the ESA Cluster Science Archive and provides additional information not found in the User Guide or Calibration Report, particularly with regard to the uncalibrated WBD Level files which are archived at the CSA and which were used to create the calibrated CDF files archived at the CSA. The following broad categories are covered in this document:
   
   
   • Points of Contact;
   • Description of the WBD instrument and investigation, including its science objectives, a detailed hardware overview, its data processing chain, and the instrument data products that were produced;
   • Data provisions - general conventions, including formats, standards, quality control, and where the data can be obtained;
   • Data provisions - specific descriptions, including descriptions of the WBD survey plots, the contents of the WBD CDF digital waveform files, both real time and Burst Mode-2, and the WBD Level 1 digital waveform files, including the file organization and naming conventions and file structure.

We strongly encourage data users to review the Interpretation Issues and Caveats pages on this website, and availabe at the CSA with the former being incorporated into the WBD User Guide and the latter available as a stand alone document through the CSA "Documentation" page.