https://doi.pangaea.de/10.1594/PANGAEA.995260Oelker, JuliaJuliaOelker0000-0002-0783-3617Institute for Chemistry and Biology of the Marine Environment, Carl von Ossietzky Universität OldenburgVoß, DanielaDanielaVoß0000-0002-1580-5456Institute for Chemistry and Biology of the Marine Environment, Carl von Ossietzky Universität OldenburgHenkel, RohanRohanHenkelInstitute for Chemistry and Biology of the Marine Environment, Carl von Ossietzky Universität OldenburgBadewien, Thomas HenryThomas HenryBadewien0000-0003-0692-7731Institute for Chemistry and Biology of the Marine Environment, Carl von Ossietzky Universität OldenburgPANGAEA2026Chlorophyll aDisco BayFluorescenceGreenlandMelville BayNarsaqNuukPhaeophytin aUummanaqDATE/TIMELATITUDELONGITUDESample IDDEPTH, waterChlorophyll aPhaeophytin aPhaeophytin a/Chlorophyll a ratioWater sampleFluorometer, Turner Designs, Trilogy 7200-002 [EPA Method 445.0]Fluorometer, Turner Designs, Trilogy 7200-002MSM139Maria S. Merian2025-07-28T06:10:00/2025-08-25T05:54:00Dataset10.48433/cr_msm139https://doi.pangaea.de/10.1594/PANGAEA.995261https://doi.pangaea.de/10.1594/PANGAEA.995178https://doi.pangaea.de/10.1594/PANGAEA.995241https://cfpub.epa.gov/si/si_public_record_report.cfm?Lab=NERL&dirEntryId=309417128 data pointstext/tab-separated-valuesCreative Commons Attribution 4.0 InternationalThis dataset was collected during the cruise MSM139 (GreenHab, 25.07 - 27.08.2025) with RV MARIA S. MERIAN from Reykjavic, Iceland to Reykjavik, Iceland. The dataset contains chlorophyll-a measurements [µg/l] from water samples directly collected from the seawater supply (Reinseewassersystem, RSWS) of the ship to calibrate the fluorometers of the RSWS system. To obtain chl-a concentrations, water samples were filtered onboard through 0.7 μm pore size, glass fiber filters (Whatmann GF/F) under low vacuum. Filters were frozen immediately at -80 °C until extraction in laboratory by 90% acetone method. Concentrations were calculated from fluorescence measured with a pre-calibrated Turner Design TD 7200-02 laboratory fluorometer (EPA445.0, Turner Manual).-58.71375-32.318559.6813475.00312Federal Ministry of Education and Researchhttps://doi.org/10.13039/50110000234703F0945AGreenHAB: Risiken der durch den Klimawandel verursachten schädlichen Algenblüte in grönländischen Gewässern