README file for 2D wave spectral data, South Arm, Great Salt Lake, Utah

Data in this folder are produced by a SoFarOcean Spotter wave buoy deployed along the south arm of the Great Salt Lake, near Antelope Island State Park from the period of July 13, 2021 through June 28, 2022, in relatively shallow water, approximately 1.6m.

IMPORTANT NOTE: Water depths for #1328 (Miera Spit) started at ~1.7 m, but dropped rapidly to 0.9 m on July 15, 2021 and dropped further to ~0.4 m on August 17, 2021. The timing of these rapid water depth changes matches the timing of buoy location changes when the anchor was dragged inshore by waves. When buoy #1328 (Miera Spit) was retrieved at the end of the study period, it was partially beached with its ballast chain touching the bed. We surmised that data quality was suspect after the second abrupt change in water depth on August 17th, 2021 when the anchor was moved.

Datasets include unprocessed system output files (####_SYS) which were parsed for wave directional data using the parsing script (parser_v1.12.0.py) from SoFarOcean included in the folder. Derived data outputs from the parsing script are as follows:
    FILE              :: DESCRIPTION
    ------------------------------------------------------------------------
    Szz.csv           :: Variance density spectra of vertical displacement [meter * meter / Hz]
    Sxx.csv           :: Variance density spectra of eastward displacement [meter * meter / Hz]
    Syy.csv           :: Variance density spectra of northward displacement [meter * meter / Hz]
    Qxz.csv           :: Quad-spectrum between vertical and eastward displacement [meter * meter / Hz]
    Qyz.csv           :: Quad-spectrum between vertical and northward displacement [meter * meter / Hz]
    Cxy.csv           :: Co-spectrum between northward and eastward displacement [meter * meter / Hz]
    a1.csv            :: First order cosine coefficient [ - ]
    b1.csv            :: First order sine coefficient   [ - ]
    a2.csv            :: Second order cosine coefficient  [ - ]
    b2.csv            :: Second order sine coefficient  [ - ]
    location.csv      :: Average location (lowpass filtered instantaneous
                         location) in terms of latitude and longitude
                         (decimal degrees)
    displacement.csv  :: Instantaneous displacement from mean location 
                         along north, east and vertical directions(in meter)
    bulkparameters    :: Bulk wave parameters (Significant wave height, peak peariod, etc.)

Further information and updated parsing scripts provided by SoFarOcean may be found at https://github.com/sofarocean/spotter-sd-parser under Apache License 2.0 terms, copyright SoFarOcean