van Leeuwe, Maria A; Webb, Alison L; Peeken, Ilka; Murawski, Sandra; Bozzato, Deborah; Nomura, Daiki; Chamberlain, Emelia; Droste, Elise Sayana; Fong, Allison A; Stefels, Jacqueline (2023): Algal pigment concentrations in meltponds and leads during the Arctic MOSAiC-expedition (Leg 4 and 5) [dataset]. PANGAEA, https://doi.org/10.1594/PANGAEA.957171
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Abstract:
Algal pigment concentrations were retrieved from meltponds and leads, during Leg 4 and 5 of the MOSAiC expedition (Multidisciplinary drifting Observatory for the Study of Arctic Climate) in 2020. The summer increase in meltpond area and open lead water in the Arctic associated with increased light availability is of specific significance for biological production within the Arctic system (Smith et al. 2023). Over a period of 3.5 months, 46 samples have been collected and analysed. After extraction in 90 % acetone, samples were analysed using high-performance liquid chromatography (HPLC) on a Waters system. Algal pigments contain a multiple set of information. Firstly, pigment concentrations can show the presence of algal biomass in the various water masses sampled. Secondly, marker pigments can reveal seasonal and temporal dynamics in algal community structure, by discerning specific algal classes like diatoms, cryptophytes, haptophytes and chlorophytes that have specific roles in biogeochemical cycles. Thirdly, certain pigments are indicative of the (photo)-physiological state of micro-algae and fourth, degradation products of the main chlorophyll a pigment further give an indication about senescence and grazing in the various habitats.
Supplement to:
Smith, Madison M; et al. (accepted): Critically important, yet forgotten: thin and transient meltwater layers and false bottoms in the Arctic sea ice pack. Elementa - Science of the Anthropocene
Related to:
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 (2023): Algal pigment concentrations in the ocean during the Arctic MOSAiC-expedition. PANGAEA, https://doi.org/10.1594/PANGAEA.955763
Project(s):
Funding:
Alfred Wegener Institute, Helmholtz Centre for Polar and Marine Research, Bremerhaven (AWI), grant/award no. AFMOSAiC-1_00: Multidisciplinary drifting Observatory for the Study of Arctic Climate
Alfred Wegener Institute, Helmholtz Centre for Polar and Marine Research, Bremerhaven (AWI), grant/award no. AWI_PS122_00: Multidisciplinary drifting Observatory for the Study of Arctic Climate / MOSAiC
Dutch Research Council (NWO), grant/award no. 866.18.002: Artic Sea Ice-Pelagic coupling of the Carbon and Sulfur cycles
Coverage:
Median Latitude: 87.600822 * Median Longitude: 97.231238 * South-bound Latitude: 81.037400 * West-bound Longitude: 0.426797 * North-bound Latitude: 89.064446 * East-bound Longitude: 120.798424
Date/Time Start: 2020-06-14T12:21:30 * Date/Time End: 2020-09-26T12:17:00
Minimum DEPTH, water: 0.10 m * Maximum DEPTH, water: 2.00 m
Event(s):
PS122/4_44-118 * Latitude: 82.041400 * Longitude: 7.812170 * Date/Time: 2020-06-14T12:21:30 * Sensor URI: sensor.awi.de * Location: Arctic Ocean * Campaign: PS122/4 (MOSAiC20192020) * Basis: Polarstern * Method/Device: Bucket water sampling (BUCKET) * Comment: "melt pond (salty, stratified) water sample 2x 4L brown Bottle (mostly surface water) 2x 60ml syringe surface water 2x 60ml syringe bottom water; samples taken Position: 82° 2.484' N, 7° 48.73' E"
PS122/4_47-144 * Latitude: 81.037400 * Longitude: 0.426797 * Date/Time: 2020-07-18T12:30:00 * Elevation: -2394.5 m * Sensor URI: sensor.awi.de * Location: Arctic Ocean * Campaign: PS122/4 (MOSAiC20192020) * Basis: Polarstern * Method/Device: Water sample (WS) * Comment: BGC water sampling for ambient CH4, DMSP, and microbial community structure jointly with other ECO and Ice Physics parameters. Located at Meltpond b near aft of the ship 11:00-2:00. Related to coring event PS122/4_47-137 SI_corer_9cm.
PS122/5_59-200 * Latitude: 87.751481 * Longitude: 104.536063 * Date/Time: 2020-08-22T11:21:00 * Elevation: -4322.6 m * Sensor URI: sensor.awi.de * Location: Arctic Ocean * Campaign: PS122/5 (MOSAiC20192020) * Basis: Polarstern * Method/Device: Water sample (WS) * Comment: Melt pond station 1, BGC ECO melt pond water sampling
Parameter(s):
License:
Creative Commons Attribution 4.0 International (CC-BY-4.0)
Status:
Curation Level: Enhanced curation (CurationLevelC) * Processing Level: PANGAEA data processing level 3 (ProcLevel3)
Size:
1242 data points