Title of dataset: Size distribution of neutral and charged particles smaller than 42 nm measured over the Southern Ocean in the austral summer of 2016/2017, during the Antarctic Circumnavigation Expedition (ACE).


Name of data file:
"03_positive_ions_size_distribution.csv”


Short description of what is included in the data file:
Size distribution of positive ions from 0.8 to 41.6 nm measured with a Neutral and Air Ion Spectrometer (Airel).


File header and description:
column 1: start date and time of measured data in ISO 8601 format YYYY-MM-DDThh:mm:ss+00:00 [UTC]
column 2 - 110: Ion concentration per size bin expressed as dN/dLogDp per cm^3, size bins values are reported in the data file header
column 111: Pollution flag, 0 indicates data potentially contaminated by the ship exhaust or other human activities on the ship, 1 indicates clean data
column 112: Ship latitude during as measured by the ship GPS [decimal degrees N]
column 113: Ship longitude during as measured by the ship GPS [decimal degrees E]


Null values:
There are no null values in the file. Data that were missing or bad because of instrumental problems were simply removed from the file (no entry).