For questions, please e-mail André Palóczy [apaloczy@ucsd.edu] This directory contains all the data collected during the SP1724 cruise on the R/V R. G. Sproul, which took place off of Pt. Sal, southern California, during September 10-20/2017. The Rolling Deck-to-Repository (R2R) data for this cruise has DOI 10.7284/907935, and is available at http://www.rvdata.us/catalog/SP1724. Each zipped directory comes with detailed README files explaining its contents and the data formats. Brief descriptions are given below. *ADCP.zip: Underway current data from the ship's Acoustic Doppler Current Profiler (ADCP). *ALFA_intake_fluorometer.zip: Underway data from the multi-spectral Advanced Laser Fluorometry Analyzer (ALFA) system. *bowchain.zip: Underway data from a string of Conductivity, Temperature and Depth (CTD) sensors deployed on the bow of the ship. *bowchain_fluorometers.zip: Chlorophyll and fluorescence data from fluorometers deployed on the bowchain along with the CTD sensors. *SP1724_module_maps.zip: Maps of individual segments of the cruise for reference. *underway_data.zip: Underway hydrographic data from the ship's flow-through system. *Sproul_cruise_report-IOP1.pdf: The cruise report.