Annual patterns in algal pigment distribution in Arctic second year ice during the MOSAiC expedition 2019/2020 ...

• Main Authors: van Leeuwe, Maria A, Stefels, Jacqueline, Peeken, Ilka, Murawski, Sandra, Bozzato, Deborah, Castellani, Giulia, Eggers, Lena, Fong, Allison A, Hoppe, Clara Jule Marie, Snoeijs-Leijonmalm, Pauline, Webb, Alison L
• Format: Dataset
• Language: English
• Published: PANGAEA 2023
• Subjects: Event label; Sample code/label; DATE/TIME; LATITUDE; LONGITUDE; Depth, description; DEPTH, ice/snow; Chlorophyll c3; Chlorophyll c1+c2; Peridinin; Pheophorbides; 19-Butanoyloxyfucoxanthin; Fucoxanthin; Neoxanthin; 19-Hexanoyloxyfucoxanthin; 19'-Hexanoyloxy-4-ketofucoxanthin; Prasinoxanthin; Violaxanthin; Astaxanthin; Diadinoxanthin; Dinoxanthin; Alloxanthin; Diatoxanthin; Zeaxanthin; Lutein; Gyroxanthin diester; Chlorophyll b; Echinenone; Chlorophyll a, total; Lycopene; Pheophytin a; alpha-Carotene; beta-Carotene; Comment; Ice corer; High Performance Liquid Chromatography HPLC; PS122/1; PS122/2; PS122/3; PS122/4; Polarstern; Multidisciplinary drifting Observatory for the Study of Arctic Climate MOSAiC; Arctic; Fram Strait; Sea ice
• Online Access: https://dx.doi.org/10.1594/pangaea.962669; https://doi.pangaea.de/10.1594/PANGAEA.962669

Algal pigment concentrations were retrieved from samples from second-year (SYI) ice, during the whole MOSAiC expedition (Multidisciplinary drifting Observatory for the Study of Arctic Climate) in 2019 to 2020. During MOSAiC, RV Polarstern anchored into an ice floe to gain new insights into Arctic climate over a full annual cycle. Sea ice data were collected starting with the onset of the study, at 85 degrees north and 137 degrees east, following the drift towards the Fram Strait, and returning into the marginal ice zone during the 4th leg of the expedition. Ice cores were collected at the various coring sites together with teams ICE and BGC (Nicolaus et al. 2022), to study the development of pigment patterns over time, on 3 specific ice-locations. Altogether, 277 samples have been collected and analysed. Ice cores were sliced in sections of 5-10 cm before analyses. Each of the sections was melted at room temperature after additions of filtered ambient seawater, under dark conditions. After extraction in 90 % ...