_id Date   Median_Chla_NDI   LOESS_fit   First_derivative   Photosynthetically active radiation   Std_dev_PAR   Mean_fluoro_chla   PURPAR_ratio   colspacer
Date Median_Chla_NDI LOESS_fit First_derivative Mean_PAR Std_dev_PAR Mean_fluoro_chla PURPAR_ratio