ctdcal.process_ctd.roll_filter¶

ctdcal.process_ctd.roll_filter(df, p_col='CTDPRS', direction='down')[source]¶

Filter out heaving in CTD data due to ship rolls.

Parameters

df (DataFrame) – CTD data
p_col (str, optional) – Name of pressure column
direction (str, optional) – Direction of cast (i.e. “down” or “up” cast)

Returns

var2 – var description

Return type

dtype