Spectrophotometer data for calibration of HSI index of the varved sediment record (HZM19) from Holzmaar, Germany


To calibrate the hyperspectral imaging (HSI) index values from the sediments of Holzmaar (HZM19) to concentration, a spectrophotometrically measured pigment analysis (Butz et al., 2015; doi:10.1117/1.JRS.9.096031) was performed for 23 samples. These samples were selected to cover a wide range of pigment concentrations as documented by HSI scanning. Approximately 1 g of wet sediment was treated with 100 % acetone according to the method of Lami et al. (1994; doi:10.1007/BF00684032), and the extracts were measured with a Shimadzu UV-1800 spectrophotometer to obtain the mass concentration of Chl-a and Bphe-a in µg/g dry sediment using a mass extinction coefficient for Chl-a (Fiedor et al, 2002; doi:10.1562/0031-8655(2002)0760145POTBCS2.0.CO2) and for Bphe-a (Jeffrey and Humphrey, 1975; doi:10.1016/S0015-3796(17)30778-3).

DOI https://doi.pangaea.de/10.1594/PANGAEA.967140
Metadata Access https://ws.pangaea.de/oai/provider?verb=GetRecord&metadataPrefix=datacite4&identifier=oai:pangaea.de:doi:10.1594/PANGAEA.967140
Creator Birlo, Stella ORCID logo; Wienhues, Giulia; Zahajská, Petra ORCID logo; Grosjean, Martin ORCID logo; García, María Luján ORCID logo; Zolitschka, Bernd ORCID logo
Publisher PANGAEA
Publication Year 2024
Rights Creative Commons Attribution 4.0 International; Data access is restricted (moratorium, sensitive data, license constraints); https://creativecommons.org/licenses/by/4.0/
OpenAccess false
Resource Type Dataset
Format text/tab-separated-values
Size 253 data points
Discipline Earth System Research
Spatial Coverage (6.883 LON, 50.117 LAT); Holzmaar, West-Eifel Volcanic Field, Germany
Temporal Coverage Begin 2019-08-11T00:00:00Z
Temporal Coverage End 2019-08-17T00:00:00Z