ctdam.conv package

Submodules

• ctdam.conv.cast_borders module
  • smoothing()
  • get_cast_borders()
  • get_downcast_end()
  • get_downcast_start()
  • get_upcast_start()
  • get_upcast_end()
  • soaking_detection()
  • soaking_removal()
  • combine_downcast_start()
• ctdam.conv.raw_conversion module
  • calculate_tau()
  • calculate_dvdt_window()
  • calculate_oxsol()
  • pressure()
  • temperature()
  • conductivity()
  • salinity()
  • convert_sbe43_oxygen()
  • oxygen()
  • par_biosphericallicorchelsea()
  • altimeter()
  • fluorescence()
  • turbidity()
  • fluorowetlabcdom()
  • spar()
• ctdam.conv.unit_conversion module
  • oxygen_mlperl_to_umolperkg()
  • oxygen_mlperl_to_umolperl()
  • oxygen_umolperkg_to_umolperl()
  • oxygen_umolperl_to_umolperkg()
  • get_potential_density()

Module contents

ctdam.conv.get_cast_borders(pressure, downcast_only=True, min_size_factor=0.01, min_soak_window=100, max_fd_quotient=6, prominence_divisor=7, win_size_divisor=500, min_velocity_quotient=15, min_velocity=0.045)

Calculates start and end points of one CTD cast.

Uses first (fd) and second derivatives (sd) for that. Relies on carefully fine-tuned parameters that are set as default values. These can be fit to any kind of CTD data.

Parameters:

• pressure (ndarray) – Pressure array

• downcast_only (bool) – Whether to only work with downcast data (Default value = True)

• min_size_factor (float) – Factor to check final dataset size against (Default value = 0.01)

• min_soak_window (int) – Downcast_start: minimum size of soaking window (Default value = 100)

• max_fd_quotient (int) – Downcast_start: Cut-off of fd height (Default value = 6)

• prominence_divisor (int) – Downcast_start: Minimum size of sd peak prominence (Default value = 7)

• win_size_divisor (int) – Downcast_start: Search window size to check fd means (Default value = 500)

• min_velocity_quotient (int) – Downcast_start: Minimum velocity cut-off (Default value = 15)

• min_velocity (float) – Downcast_start: Minimum velocity cut-off (Default value = 0.045)

Return type:

dict

ctdam.conv.oxygen_umolperl_to_umolperkg(data, potential_density)

Return type:

ndarray

ctdam.conv.oxygen_mlperl_to_umolperkg(data, potential_density)

Return type:

ndarray

ctdam.conv.oxygen_umolperkg_to_umolperl(data, potential_density)

Return type:

ndarray

ctdam.conv.oxygen_mlperl_to_umolperl(data)

Return type:

ndarray

ctdam.conv.get_potential_density(practical_salinity, temperature, pressure, longitude, latitude)

Return type:

ndarray