For the study an algorithm for geometric, radiometric and atmospheric corrections is used to remove clouds and dust. The area was analysed for 10 years. The purposes for the time series are to evaluate if low quality observations are given and to assess data bevor and after using the filter. Quality indicators Show,how effective a filter works. Temporal percistence can be described by the autocorrelation function. The filter removes estimated noice and bad Quality of the input data.
Now I know, how scanning with laser works, and how to interpolate data.