Table 2 Description of columns in the file ‘samples.csv’ that contains metadata of all sampling stations as well as data on sediment composition.
SAMPLES.CSV | |
|---|---|
column | description |
sample_id | unique identifier of sample |
sampling_station_id | unique identifier of sampling station. Sampling stations are repeatedly visited between years |
sampling_type | grid or random sampling station |
date | sampling date |
platform | boat: sample taken from a rubber boat walk: sample taken by foot |
tidal_basin_name | name of the tidal basin |
tidal_flat_name | name of the flat as used on Rijkswaterstaat charts |
x | longitude (decimal degrees east, wgs84) |
y | latitude (decimal degrees north, wgs84) |
median_grain_size | median grain size of the sediment in µm |
percentage_mud | percentage of the sediment sample with grain size < 63 μm |
