The grain size raw data is stored in ascii files with 3 columns. The first column contains the sieve diameter in [1e-6 m], the next columns show the sieve mass without respectively with the sediment in [g].

The filenames contain the test name, the time interval (capital) and a number indicating the cross-shore distance to the wave board (1: 35m, 3: 41m, 5: 43m, 7: 45m) 

H4265, 2010-05-03
C. den Heijer
Deltares