Optical water quality variables (Secchi depth and Forel-Ule color indexes) observed during RV METEOR cruise M187 (ReSEAt) from Walvis Bay, Namibia to Walvis Bay, Namibia

DOI

Water clarity and color were observed during the RV METEOR cruise M187 (ReSEAt, 25.01.2023 - 04.03.2023, Walvis Bay, Namibia - Walvis Bay, Namibia) using a white Secchi disc with a diameter of 40 cm and a Forel-Ule color scale. The Secchi depth (SD) was recorded as a relative measure of water clarity at each in situ station during day time. At half SD the apparent color of the water above the submerged Secchi disc was determined using the Forel-Ule color scale. A Forel-Ule color scale is a classic tools used to differentiate the percieved color of water based on a scale from 1 (indigo blue) to 21 (cola brown). The measurements were conducted as recemmend in literature (Garaba and Zielinski, 2015; Wernand, 2011; Wernand and van der Woerd, 2010).

Identifier
DOI https://doi.org/10.1594/PANGAEA.959668
Related Identifier References https://doi.org/10.1016/j.rsase.2015.09.001
Related Identifier References https://dspace.library.uu.nl/handle/1874/212589
Related Identifier References https://doi.org/10.2971/jeos.2010.10014s
Metadata Access https://ws.pangaea.de/oai/provider?verb=GetRecord&metadataPrefix=datacite4&identifier=oai:pangaea.de:doi:10.1594/PANGAEA.959668
Provenance
Creator Garaba, Shungudzemwoyo Pascal ORCID logo; Voß, Daniela; Achterberg, Eric Pieter; Browning, Thomas J ORCID logo; Robinson, Tiera-Brandy (ORCID: 0000-0001-7948-800X); Zielinski, Oliver ORCID logo
Publisher PANGAEA
Publication Year 2023
Rights Creative Commons Attribution 4.0 International; https://creativecommons.org/licenses/by/4.0/
OpenAccess true
Representation
Resource Type Dataset
Format text/tab-separated-values
Size 52 data points
Discipline Earth System Research
Spatial Coverage (-5.000W, -26.990S, 14.329E, -24.673N)
Temporal Coverage Begin 2023-01-02T09:07:00Z
Temporal Coverage End 2023-12-02T10:22:00Z