STORM - Solar system plasma Turbulence:  Observations, inteRmittency and Multifractals

D5MINSW (1997-1998) - a database of spectral power, probability density and multifractal analysis of solar wind data at solar minimum


 This database provides results of solar wind data analysis from Ulysses (1997-1998); it includes three catalogues organized as a function of analysis method, as shown below:

  1. D5MINSW_1997_1998_PSD - A catalogue of spectral analysis of solar wind data from Ulysses 1997 and 1998; it includes 136  PSD spectra (61 spectra for fast solar wind, 75  spectra for slow wind).
  2. D5MINSW_1997_1998_PDF - A catalogue of Probability distribution functions computed for magnetic fluctuations recorded  in the solar wind by Ulysses between 1997 and 1998; it includes 90 PDFs (6 for fast solar wind, 84 for slow wind).
  3. D5MINSW_1997_1998_Multifractals - A catalogue of multifractal spectra (computed with Partition Function and Rank Ordered methods) of magnetic fluctuations recorded in the solar wind by Ulysses between 1997 and 1998. This catalogue includes an overall number of 99 multifractal spectra of which 33  spectra are computed for fast solar wind (21 spectra are derived with partition function and 12 spectra are derived with rank ordered approach, respectively). Of the 65 multifractal spectra computed for slow wind, 41 are obtained with partition function and 24  with rank ordered approach.

The two archives D5MINSW_1997_1998_PSD and D5MINSW_1997_1998_PDF have a similar structure as ilustrated by the diagram inserted below. The results are organized as a function of mission and type of wind. The procedure to determine the state of the wind (fast or slow) is based on a complex of five criteria (Wawrzaszek et al., ApJL, 2015) aplied on Ulysses data. The two archves include image files (.png) and the corresponding binary files (.txt) for PSDs and PDFs computed for solar wind data from Ulysses. The name of the files are self explanatory and indicate the type of wind, the spacecraft and the date of observations, as illustrated by the example included in the diagram below.

The graphical files for the PSD and PDF analysis of Ulysses data included in D5MINSW catalogues have the same format as the one illustrated for D1MAXSW ans for D3MINSW, respectively.

The structure of the archive D5MINSW_1997_1998_Multifractals is illustrated by the diagram included below. We provide two types of multifractal spectra:(1) the partition function multifractal spectra (for a description see, e.g., Wawrzaszek et al., ApJL, 2015) and the Rank  Ordered Multifractal Analysis (ROMA, for a description see; e.g. Chang et al., 2011). The results are grouped as a function of the  type of wind (fast versus slow).