cff-version: 1.2.0 abstract: "

We derived the absorption coefficients (m-1)  from 400 to 700 nm at 2 nm resolution of surface water samples from the German Lake Bante in Wilhemshaven. The water samples were analyzed for the total absorption coefficients of the unfiltered water (a_tot) and colored dissolved organic material (a_cdom) after filtration using a membrane filter of 0.2 µm pore size. Absorption coefficient of algal material (a_ph) was computed as the difference between a_tot and a_cdom under the assumption that no contribution was expected from suspended particulate solids. Absorption coefficient measurements were conducted in a point-source integrating-cavity absorption meter (PSICAM) with a sample chamber volume of ~400 mL. Information about the PSICAM measurements, calibration of the instrument and data correction are explained more in literature (Leathers et al., 2000; Röttgers et al.,2007). Raw data is available upon reasonable request from the authors.

" authors: - family-names: Wollschläger given-names: Jochen - family-names: Albinus given-names: Michelle - family-names: Garaba given-names: Shungudzemwoyo P. orcid: "https://orcid.org/0000-0002-9656-3881" title: "Absorption measurements of Nodularia spumigena bloom from Lake Bante In Wilhelmshaven, Germany" keywords: version: 1 identifiers: - type: doi value: 10.4121/21610995.v1 license: CC BY 4.0 date-released: 2022-11-24