OVERVIEW
Supplementary data from NOAA for the TURTLE experiments on Galveston Island, TX, USA in the fall of 2023. Data includes observed air pressure at NOAA station 8771450 (Galveston Pier 21) and water level at NOAA station 8771341 (Galveston Bay Entrance, North Jetty). This dataset is part of the collection "TURTLE: Measurements of groundwater, hydrodynamics, sand temperature, and sediment characteristics at two beach transects on Galveston Island, Texas, USA". The data was downloaded from the NOAA Tides and Currents database: https://tidesandcurrents.noaa.gov/

CONTENTS
- 8771341_water_level_2023_2023.csv
    6-minute water level [m NAVD88] measured at NOAA station 8771341 (Galveston Bay Entrance, North Jetty)
- 8771450_air_pressure_2023_2023.csv
    6-minute barometric pressure [mbar] measured at NOAA station 8771450 (Galveston Pier 21)

DATA FORMAT
Tabular data, provided in CSV format

DATA STRUCTURE
Both CSV files contain time series of the entire year 2023. The time is given in unix time (seconds after 1 January 1970, 00:00, UTC). The water level ('wl') is given in meters relative to NAVD88. The air pressure ('pres') is given in mbar.

USAGE
Any software or programming language that can read *.csv files can be used to analyse the data (Python, R, C++, ...). We have used Python for all processing and operations on the data. Using the pandas library in python the files can be read through the command pandas.read_csv().

REFERENCE
Christiaanse, J. C., Antolínez, J. A. A., van der Grinten, M. J., Taal, F., Figlus, J., Dellapenna, T. M., Ritt, B., Marshall, C. D., Tereszkiewicz, P. A., Cohn, N., Majzlik, E. J., & Reniers, A. J. H. M. (in review). Measurements of groundwater, hydrodynamics, and sand characteristics at a dissipative sea turtle nesting beach. Scientific Data.