PANGAEA_995340
Hyperspectral underwater light field measured during the cruise MSM139 with RV MARIA S. MERIAN
Voß, Daniela; Henkel, Rohan; Oelker, Julia; Badewien, Thomas Henry
Hyperspectral underwater light field measured during the cruise MSM139 with RV MARIA S. MERIAN
2026-06-19
PANGAEA
Dataset
https://doi.pangaea.de/10.1594/PANGAEA.995340
Earth Science
geoscientificInformation
Disco Bay
Ed
Es
GreenHab
Greenland
irradiance
Lu
Melville Bay
Narsaq
Nuuk
ocean color
radiance
Uummanaq
2025-07-29
2025-08-21
Complete
60.622179
74.998851
-58.71942999999999
-45.423377000000016
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
Leobener Str.
Bremen
Bremen
28359
Germany
online
3 datasets
application/zip
John, Uwe; Christensen, Anneliese; Becks, Lutz; Thielecke, Antonia; Voß, Daniela; Henkel, Rohan; Oelker, Julia; Thome, Pauline; Andipalagan, Mathiroopini; Schmitt-Kopplin, Philippe; Clarke, Dave; Burfeid-Castellanos, Andrea M; Eikrem, Wenche; Lundholm, Nina; Nagai, Satoshi; Honorato, Ricardo; Kühne, Nancy; Kopplin, Leila (2025): Investigate and evaluate the risks of harmful algae blooms in Greenlandic waters due to climate change: Assessment of range expansion and HAB population connectivity, Cruise No. MSM139, 25.07.2025 - 27.08.2025, Reykjavík (Iceland) - Reykjavík (Iceland). MARIA S. MERIAN-Berichte, Begutachtungspanel Forschungsschiffe, MSM139, 50 pp, https://doi.org/10.48433/cr_msm139
Non-Exclusive Licence No. G25-007 for Utilization of Greenland Genetic Resources (2025). Naalakkersuisut - Government of Greenland, https://download.pangaea.de/reference/140046/attachments/Genetic%20Resource%20License%20No.%20G25-007.pdf
Data presented here were collected during the cruise MSM139 with MSM139 with RV Maria S. Merian from Reykjavik, Iceland to Reykjavik, Iceland (25.07 - 27.08.2025, working area Greenland). In total, 29 underwater light profiles were collected at 33 stations, using a free-falling hyperspectral light profiler. The system used was a SEABIRD HyperPro II (SN 189, former Satlantic), equipped with a irradiance sensor to measure downwelling irradiance (Ed, SN 532) and a radiance sensor for upwelling radiance (Lu, SN 421). A reference unit was attached to the ship to measure the above water irradiance (Es, SN 533). The sensors were calibrated by the manufacturer and validated prior to the cruise with a reference lamp. Data were recorded with the SatView software (V 2.9.5_7) and processed from raw to Level1, 1b, 2, 2s to Level 3a using the ProSoft Processing software (V 7.7.19_2). Measured data were binned in 0.5 m depth intervals. A dark correction was made automatically based on shutter measurements by the instrument. Measurements with a tilt higher than 5° were not taken into account during processing. Spectra were interpolated to 1 nm intervals. For each station the hyperspectral profiles for each parameter cover the wavelength range from 400-700 nm, for Ed and Es in [W/m² nm], for Lu in [W/m² nm sr]. For Ed, Lu and Es descriptive statistics are given including min, max, mean, median and standard deviation of the tilt and the photosynthetically active radiation PAR [µmol photons/m² s (sr)], integrated from 400 - 700 nm. Statistics are not given for profiles which do not reach the 1% PAR depth. To allow an assignment of above water conditions to the respective depth measurements, Es spectra were given as a function of depth, recalculated from data Level2s. The Profiler measurements were only conducted during daylight. Raw data are available on request from the principal investigator.
Chief Scientist of RV Maria S Merian cruise MSM139: Dr.Uwe John, Alfred Wegener Institute, Helmholtz Centre for Polar and Marine Research (AWI). ** For all details see the full metadata description at "https://doi.pangaea.de/10.1594/PANGAEA.995340"!
https://doi.org/10.48433/cr_msm139
Investigate and evaluate the risks of harmful algae blooms in Greenlandic waters due to climate change: Assessment of range expansion and HAB population connectivity, Cruise No. MSM139, 25.07.2025 - 27.08.2025, Reykjavík (Iceland) - Reykjavík (Iceland)
DIF
9.4
2026-06-19
2026-06-19