TOOL DESCRIPTION
This tool displays the timeline of the “scintillation climatology” for each station of the eSWua network for a time period of maximum 30 days (at one time). Scintillation climatology, in this context, refers to a method for visualizing the intensity and frequency of scintillation events over time at a glance.
The user can select the station, the time period, the scintillation index (either S4 or sigma-phi, both measured on L1), the elevation mask, and the threshold value above which an observation is considered a scintillation event.
The result is the ratio (in percentage) between the count of the total observations above the threshold and the total observation available, within a 1 hour time-window. The values are organized as a matrix reporting the hours of the day in the x-axis, the days of the year in the y-axis. The scintillation percentage occurrences are the value of each cell, coloured according to a (white-to-red) color scale.
Please note that:
- The longer the chosen time-range, the longer the time you need to wait (from a few seconds up to a minute).
- The scintillation index values are not manually validated and may contain outliers due to natural or anthropogenic causes.
- Low values of elevation mask (<20°) may affect the results, due to the effect of multipath. Increasing the threshold value may help to reduce the effect of the multipath when using low elevation masks.
- Values are reported in UTC. The button “Station info and data availability” allows you to check the station location in order to preliminary estimate the UTC time-difference.
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