helikite.instruments.mcda_instrument

Mini Cloud Droplet Anlayzer (mCDA) mCDA -> mCDA_output_2025-02-12_A (has pressure)

Important variables to keep:

!!! Raspery Pie of the mCDA has an autonomous timestamp, make sur it has been corrected when creating the output file.

Attributes

`logger`
`mcda`
`Midpoint_diameter_list`

Classes

mCDA

Instrument definition for the mcda sensor system.

Functions

`mcda_concentration_calculations`(→ pandas.DataFrame)
`mCDA_STP_normalization`(df)	Normalize mCDA concentrations to STP conditions and insert the results
`plot_mcda_distribution`(df, Midpoint_diameter_list[, ...])	Plot mCDA size distribution and total concentration.
`plot_mcda_vertical_distribution`(df, Midpoint_diameter_list)	Plots the vertical distribution of mCDA particle size distribution versus altitude.

Module Contents

helikite.instruments.mcda_instrument.logger

class helikite.instruments.mcda_instrument.mCDA(*args, **kwargs)

Bases: helikite.instruments.base.Instrument

Instrument definition for the mcda sensor system. Handles timestamp creation and optional corrections.

file_identifier(first_lines_of_csv) → bool: Identify if the file matches the expected mCDA CSV header. Only checks the first few columns for matching names, ignoring the rest.

set_time_as_index(df: pandas.DataFrame) → pandas.DataFrame: Set the DateTime as index of the dataframe and correct if needed Using values in the time_offset variable, correct DateTime index

read_data() → pandas.DataFrame

data_corrections(df: pandas.DataFrame, **kwargs) → pandas.DataFrame: Apply any custom corrections here. For now, this is a pass-through.

helikite.instruments.mcda_instrument.mcda

helikite.instruments.mcda_instrument.Midpoint_diameter_list

helikite.instruments.mcda_instrument.mcda_concentration_calculations(df: pandas.DataFrame) → pandas.DataFrame

helikite.instruments.mcda_instrument.mCDA_STP_normalization(df)

Normalize mCDA concentrations to STP conditions and insert the results right after the existing mCDA columns.

Parameters: df (pd.DataFrame): DataFrame containing mCDA measurements and metadata.

Returns: df (pd.DataFrame): Updated DataFrame with STP-normalized columns inserted.

helikite.instruments.mcda_instrument.plot_mcda_distribution(df, Midpoint_diameter_list, time_start=None, time_end=None)

Plot mCDA size distribution and total concentration.

Parameters: - df (pd.DataFrame): DataFrame containing mCDA size distribution and total concentration. - Midpoint_diameter_list (list or np.array): List of particle diameters corresponding to the diameter bin midpoints.

helikite.instruments.mcda_instrument.plot_mcda_vertical_distribution(df, Midpoint_diameter_list)

Plots the vertical distribution of mCDA particle size distribution versus altitude.

Parameters: - df: pandas DataFrame containing particle size distribution and altitude data. - midpoint_diameter_list: 1D NumPy array of midpoint diameters corresponding to bins.