sedtrap_bbp

This repository contains:

• particulate flux and backscattering data from sediment trap deployments in: - the Gulf of Mexico from December 2022 through May 2025 - the Santa Barbara Basin from October 2016 through November of 2017 - Bbp data contained in tsv files 'bbp_SN_YYYYMMDD.tsv' where SN is sensor serial number (1314 or 1315) and YYYYMMDD is deployment date.

• code for data processing, compiling, and visualization and analysis:

  • Use 'bbp_data_processing.m' for processing .RAW files downloaded from ECO Triplet sensors (532 and 700 nm bands)
    • This script generates a .tsv table with 'datetime', and Bbp at 532 and 700 nm
    • Requires the 'betasw_ZHH2009.m' function to calculate backscattering of seawater (Bw).
    • Inputs:
      • filename
      • startDate and endDate
      • calibration coefficients
      • physical parameters: seawater temperature and salinity
      • TSV file name to be used, e.g. 'bbp_1315_20170510.tsv'
  • Use 'data_compiler.m' to compile .tsv table and plot Bbp time series data
    • select directory: data_gom or data_sbb
    • TSV file name to be used for compiled table, e.g. 'eco_bbp_time_series.tsv'
  • Use 'bbp_data_explorer.mlx' to:
    • Load Bbp data
    • Check for duplicate rows and clean data table
    • Plot Bbp data
    • Filter Bbp data
    • Smooth data
    • Load and filter sediment trap data
    • Plot sediment trap data
    • Overlay Bbp curves onto flux plots
    • Calculate mean Bbp value for each sediment trap cup cycle
    • Create least-square regression plots showing flux vs Bbp