Birlo, Stella; Wienhues, Giulia; Zahajská, Petra; Grosjean, Martin; García, María Luján; Zolitschka, Bernd: Spectrophotometer data for calibration of HSI index of the varved sediment record (HZM19) from Holzmaar, Germany [dataset]. PANGAEA, https://doi.pangaea.de/10.1594/PANGAEA.967140 (dataset in review)
Abstract:
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).
Supplement to:
Birlo, Stella; Wienhues, Giulia; Zahajská, Petra; Grosjean, Martin; García, María Luján; Zolitschka, Bernd (in prep.): Holocene development of trophic and anoxic conditions reconstructed with high-resolution using varved lake sediments from Holzmaar (West-Eifel Volcanic Field, Germany).
Coverage:
Latitude: 50.116670 * Longitude: 6.883333
Date/Time Start: 2019-08-11T00:00:00 * Date/Time End: 2019-08-17T00:00:00
Minimum Elevation: 425.0 m * Maximum Elevation: 425.0 m
Event(s):
Parameter(s):
| # | Name | Short Name | Unit | Principal Investigator | Method/Device | Comment |
|---|---|---|---|---|---|---|
| 1 | Core section label | Sec label | Birlo, Stella | |||
| 2 | Section | Sect | Birlo, Stella | |||
| 3 | Section position | Sect | mm | Birlo, Stella | ||
| 4 | Depth, composite | Depth comp | mcd | Birlo, Stella | ||
| 5 | Calendar age, mean | Cal age mean | ka BP | Birlo, Stella | Calculated, based on VT22 (Birlo et al., 2023) | Model D |
| 6 | Absorbance, 664 nm | Absorbance 664 | Birlo, Stella | Spectrophotometer Shimadzu UV-1800 | ||
| 7 | Chloropigments per unit sediment mass | Chloropigm/sed | µg/g | Birlo, Stella | According to Fiedor et al. (2002) | Total |
| 8 | Relative absorption band depth, 671 nm | RABD671 | Birlo, Stella | According to Butz et al. (2015) | ||
| 9 | Absorbance, 750 nm | Absorbance 750 | Birlo, Stella | Spectrophotometer Shimadzu UV-1800 | ||
| 10 | Bacteriopheopigments per unit sediment mass | Bacteriopheopig/sed | µg/g | Birlo, Stella | HSI index, calibrated | Total |
| 11 | Relative absorption band depth, 845 nm | RABD845 | Birlo, Stella | According to Butz et al. (2015) |
License:
Creative Commons Attribution 4.0 International (CC-BY-4.0) (License comes into effect after moratorium ends)
Status:
Curation Level: Enhanced curation (CurationLevelC)
Size:
253 data points