The roughly 4 km2 sized area was scanned six times over the past seven years in different seasons: April 2006, April 2007, June 2010, May 2011, November 2011, and June 2012. As a result, ALS data are available from dates before the vegetation period when the vegetation is still leafless, in the middle of the vegetation period, and after the vegetation period when the leaves have fallen but have not yet been compacted. These data sets allow for the investigation of the optimum time frame for data acquisition.