PANGAEA_951239 Secchi disk measurements during Nodularia spumigena bloom on Lake Bante in Wilhemshaven, Germany Garaba, Shungudzemwoyo Pascal; Albinus, Michelle Secchi disk measurements during Nodularia spumigena bloom on Lake Bante in Wilhemshaven, Germany 2022-11-24 PANGAEA Dataset https://doi.pangaea.de/10.1594/PANGAEA.951239 Investigator Shungudzemwoyo Pascal Garaba shungu.garaba@uni-oldenburg.de Earth Science Station label DATE/TIME LATITUDE LONGITUDE Depth of Secchi Disk geoscientificInformation BanterSee Germany LakeBante Lake Bante Nodularia spumigena bloom Secchi disk Secchi disk depth water clarity Wilhelmshaven 2022-08-25 2022-08-25 Complete 53.5047144 53.510595 8.0785439 8.1134566 unrestricted CC-BY-4.0: Creative Commons Attribution 4.0 International English PANGAEA Data Publisher for Earth & Environmental Science https://www.pangaea.de/ Data Center Contact Michael Diepenbroek info@pangaea.de

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Bremen Bremen 28359 Germany online 28 data points text/tab-separated-values Garaba, Shungudzemwoyo Pascal; Friedrichs, Anna; Voß, Daniela; Zielinski, Oliver (2015): Classifying Natural Waters with the Forel-Ule Colour Index System: Results, Applications, Correlations and Crowdsourcing. International Journal of Environmental Research and Public Health, 12(12), 16096-16109, https://doi.org/10.3390/ijerph121215044 Wernand, Marcel Robert (2011): Poseidon's paintbox : historical archives of ocean colour in global-change perspective [dissertation]. Utrecht University, https://dspace.library.uu.nl/handle/1874/212589, 240

A black and white Secchi disk with a diameter of 30 cm was used during the Lake Bante field campaign aboard an electric powered boat on 25 August 2022 in Wilhelmshaven, Germany. The disk had a steel weight attached at the bottom to keep it stable in the water column. Here, Secchi disk depth was collected as a descriptor of water transparency/clarity. More information about Secchi disk depth procedures and importance is explained in open-access works e.g., (Garaba et al., 2015; Wernand, 2011). At each station on Lake Bante, the black and white Secchi disk was lowered into the water until it was no longer visible. The depth at which it disappeared or was no longer visible was recorded as a distance from the water surface to the disk. The recorded depth information was then used to describe water clarity as clear or turbid using the Secchi disk depth in meters as an index. ** For all details see the full metadata description at "https://doi.pangaea.de/10.1594/PANGAEA.951239"!

http://en.wikipedia.org/wiki/ISO_6709 LATITUDE http://en.wikipedia.org/wiki/ISO_6709 LONGITUDE http://en.wikipedia.org/wiki/ISO_8601 DATE/TIME https://doi.org/10.3390/ijerph121215044 Classifying Natural Waters with the Forel-Ule Colour Index System: Results, Applications, Correlations and Crowdsourcing DIF 9.4 2022-11-24 2026-07-15