Hoppe, Clara Jule Marie; Creamean, Jessie; Bowman, Jeff S; Heitmann, Laura; Chamberlain, Emelia; Brenneis, Tina; Terbrüggen, Anja; Vortkamp, Martina (2023): Year-round discrete underway water column Chlorophyll a concentrations from the central Arctic [dataset]. PANGAEA, https://doi.org/10.1594/PANGAEA.962597
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Abstract:
Near-daily concentrations of Chlorophyll a and phaeopigments from RV Polarsterns underway water supply system (inlet at 11m water depth) collected during legs 1,3,4, and 5 of the MOSAiC (PS122) drift expedition in the central Arctic Ocean. 2-4L of water were filtered onto pre-combusted GF/F filters (nominal pore size 0.7µm) and frozen at -80°C. Samples were subsequently extracted in 90°C acetone, homogenized using a cell mill, and measured on the following day using a Turner flourometer, followed by an acidification step to determine phaeopigments (see Knap et al. 1996 for details and calculations). Samples were collected from end of October 2019 to beginning of October 2020, with a gap between mid-December and the end of February.
Keyword(s):
References:
Knap, Anthony H; Michaels, A; Close, A R; Ducklow, Hugh W; Dickson, Andrew G (1996): Protocols for the Joint Global Ocean Flux Study (JGOFS) Core Measurements. JGOFS, Reprint of the IOC Manuals and Guides No. 29, UNESCO 1994, 19, 210 pp, hdl:10013/epic.27912.d001
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
Coverage:
Median Latitude: 84.536441 * Median Longitude: 50.009273 * South-bound Latitude: 78.354741 * West-bound Longitude: -36.294588 * North-bound Latitude: 89.993123 * East-bound Longitude: 133.101093
Date/Time Start: 2019-10-31T08:00:00 * Date/Time End: 2020-10-01T15:12:00
Minimum DEPTH, water: 11 m * Maximum DEPTH, water: 11 m
Event(s):
PS122/1_5-42 * Latitude: 85.766154 * Longitude: 123.554737 * Date/Time: 2019-10-31T08:00:00 * Elevation: -4394.3 m * Sensor URI: sensor.awi.de * Campaign: PS122/1 (MOSAiC20192020) * Basis: Polarstern * Method/Device: Underway water sampling (UWS) * Comment: Underway water sampling for discrete chlorophyll, DNA, and INPs.
PS122/1_5-44 * Latitude: 85.814796 * Longitude: 122.884953 * Date/Time: 2019-11-01T09:00:00 * Elevation: -4397.2 m * Sensor URI: sensor.awi.de * Campaign: PS122/1 (MOSAiC20192020) * Basis: Polarstern * Method/Device: Underway water sampling (UWS) * Comment: Underway water sampling for discrete chlorophyll, DNA, and INPs.
PS122/1_5-87 * Latitude: 85.901702 * Longitude: 121.325168 * Date/Time: 2019-11-03T11:00:00 * Elevation: -4404.0 m * Sensor URI: sensor.awi.de * Campaign: PS122/1 (MOSAiC20192020) * Basis: Polarstern * Method/Device: Underway water sampling (UWS) * Comment: Underway water sampling for discrete chlorophyll, DNA, and INPs.
Parameter(s):
| # | Name | Short Name | Unit | Principal Investigator | Method/Device | Comment |
|---|---|---|---|---|---|---|
| 1 | Event label | Event | Hoppe, Clara Jule Marie | |||
| 2 | Leg Number | Leg | Hoppe, Clara Jule Marie | MOSAiC leg | ||
| 3 | Activity description | Activity | Hoppe, Clara Jule Marie | MOSAiC week | ||
| 4 | Cast number | Cast | Hoppe, Clara Jule Marie | |||
| 5 | DATE/TIME | Date/Time | Hoppe, Clara Jule Marie | Geocode | ||
| 6 | Device type | Device | Hoppe, Clara Jule Marie | device | ||
| 7 | Device type | Device | Hoppe, Clara Jule Marie | device code | ||
| 8 | LATITUDE | Latitude | Hoppe, Clara Jule Marie | Geocode | ||
| 9 | LONGITUDE | Longitude | Hoppe, Clara Jule Marie | Geocode | ||
| 10 | DEPTH, water | Depth water | m | Hoppe, Clara Jule Marie | Geocode | |
| 11 | Volume | Vol | ml | Hoppe, Clara Jule Marie | ||
| 12 | Chlorophyll a | Chl a | µg/l | Hoppe, Clara Jule Marie | Pigments, Turner fluorometer | |
| 13 | Phaeopigments | Phae | µg/l | Hoppe, Clara Jule Marie | Acidification method according to Knap et al. (1996) |
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:
3863 data points
Download Data
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