Bracher, Astrid; Mehdipour, Ehsan; Xi, Hongyan; Zeising, Moritz; Hohe, Christian; von Appen, Wilken-Jon (2025): Total and phytoplankton group chlorophyll concentrations from underway spectrophotometry with water mass classification in the East Greenland Sea from Polarstern expeditions 2015-2024 [dataset]. PANGAEA, https://doi.org/10.1594/PANGAEA.983421
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Published: 2025-11-19 • DOI registered: 2025-11-19
Abstract:
We present a high spatially resolved (around 300 m) data set on the chlorophyll-a concentrations of all phytoplankton (total chlorophyll-a), diatoms, haptophytes and chlorophytes various phytoplankton pigments (unit: mg/m³) estimated from particulate absorption data derived from underway AC-S measurements operated on eight R/V POLARSTERN expeditions in the Greenland Sea (North of 66.3°N to 82°N within the Atlantic Ocean) between 2015 to 2024: PS93.2, PS99.2, PS107, PS121, PS126, PS131, PS136 and PS143-2. For each data point we further provide the percentage of Atlantic Water and Polar Water and the association into the three regions: East Greenland Sea, Central Fram Strait and West Spitsbergen Current. Mind that the classification of water masses and regions is only valid for the Hausgarten area (78°N to 80°N and 7°W to 15°E). The details of the instrument set-up, the data and the methods are described in Bracher et al. (2025).
Keyword(s):
Supplement to:
Bracher, Astrid; Xi, Hongyan; von Appen, Wilken-Jon; Mehdipour, Ehsan; Metfies, Katja; McPherson, Rebecca; Zeising, Moritz; Nöthig, Eva-Maria (2025): Resolving the interannual variability of phytoplankton community composition in Fram Strait using ship-based high-frequency spectrophotometric measurements from 2015 to 2024. https://doi.org/10.1016/j.dsr2.2025.105568, Deep Sea Research Part II: Topical Studies in Oceanography, https://www.sciencedirect.com/science/article/pii/S0967064525001171
Project(s):
Arctic Amplification (AC3)
Sentinel-3 Validation Ocean Colour (S3VT-OC)
Funding:
German Research Foundation (DFG), grant/award no. 268020496: TRR 172: ArctiC Amplification: Climate Relevant Atmospheric and SurfaCe Processes, and Feedback Mechanisms
Coverage:
Median Latitude: 78.438750 * Median Longitude: 3.955617 * South-bound Latitude: 0.000000 * West-bound Longitude: -25.331000 * North-bound Latitude: 82.970000 * East-bound Longitude: 19.508000
Date/Time Start: 2015-07-23T02:36:00 * Date/Time End: 2024-08-05T06:27:00
Minimum DEPTH, water: 11 m * Maximum DEPTH, water: 11 m
Event(s):
PS93.2-track * Latitude Start: 69.678000 * Longitude Start: 18.989800 * Latitude End: 69.678000 * Longitude End: 18.989810 * Date/Time Start: 2015-07-20T00:00:00 * Date/Time End: 2015-08-14T00:00:00 * Campaign: PS93.2 (ARK-XXIX/2.2) * Basis: Polarstern * Method/Device: Underway cruise track measurements (CT)
PS99.2-track * Latitude Start: 78.300000 * Longitude Start: 15.650000 * Latitude End: 69.678000 * Longitude End: 18.989800 * Date/Time Start: 2016-06-23T00:00:00 * Date/Time End: 2016-07-16T00:00:00 * Campaign: PS99.2 (ARK-XXX/1.2) * Basis: Polarstern * Method/Device: Underway cruise track measurements (CT)
PS107-track * Latitude Start: 69.698017 * Longitude Start: 19.075050 * Latitude End: 69.679524 * Longitude End: 18.996637 * Date/Time Start: 2017-07-23T17:00:01 * Date/Time End: 2017-08-19T05:59:59 * Campaign: PS107 (ARK-XXXI/2) * Basis: Polarstern * Method/Device: Underway cruise track measurements (CT)
Parameter(s):
| # | Name | Short Name | Unit | Principal Investigator | Method/Device | Comment |
|---|---|---|---|---|---|---|
| 1 | Event label | Event | Bracher, Astrid | |||
| 2 | DATE/TIME | Date/Time | Bracher, Astrid | Geocode | ||
| 3 | DEPTH, water | Depth water | m | Bracher, Astrid | Geocode | |
| 4 | LATITUDE | Latitude | Bracher, Astrid | Geocode | ||
| 5 | LONGITUDE | Longitude | Bracher, Astrid | Geocode | ||
| 6 | Chlorophyll a, total | TChl a | µg/l | Bracher, Astrid | derived | |
| 7 | Chlorophyll a, Diatoms | Chl a Diatoms | µg/l | Bracher, Astrid | derived | |
| 8 | Chlorophyll a, Haptophyta | Chl a Haptophyta | µg/l | Bracher, Astrid | derived | |
| 9 | Chlorophyll a, Chlorophyta | Chl a Chloro | µg/l | Bracher, Astrid | derived | |
| 10 | Atlantic water | AW | % | Bracher, Astrid | derived | |
| 11 | Polar water | PW | % | Bracher, Astrid | derived | |
| 12 | Ocean and sea region | OS region | Bracher, Astrid | derived | in Fram Strait |
License:
Creative Commons Attribution 4.0 International (CC-BY-4.0)
Status:
Curation Level: Enhanced curation (CurationLevelC)
Size:
860583 data points
Download Data
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