S289

Absorption spectral slopes for the intervals 279-299 (S289; Loiselle et al., 2009). Calculated with the R staRdom package (Pucher et la., 2019). Loiselle, S. A., Bracchini, L., Dattilo, A. M., Ricci, M., Tognazzi, A., Cózar, A., et al. (2009). The optical characterization of chromophoric dissolved organic matter using wavelength distribution of absorption spectral slopes. Limnol. Oceanogr. 54, 590-597. doi: 10.4319/lo.2009.54.2.0590 Pucher, M., Wünsch, U., Weigelhofer, G., Murphy, K., Hein, T., and Graeber, D. (2019). staRdom: versatile software for analyzing spectroscopic data of dissolved organic matter in R. Water 11, 2366. doi: 10.3390/w11112366

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