Albinus, Michelle; John, Uwe (2024): Chlorophyll a and phaeophytin a measurements from discrete water samples during RV HEINCKE cruise HE627 [dataset]. PANGAEA, https://doi.org/10.1594/PANGAEA.966740
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Abstract:
This dataset was collected during the cruise HE627 (FjordChange I, 12.08.2023 to 02.09.2023) with RV HEINCKE from Bremerhaven, Germany to Lonyearbyen, Norway It contains chlorophyll a measurements [µg/l] from water samples collected from dicrete sampling via CTD. In total, 13 stations have been sampled. The 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).
Chief Scientist of HE627: Dr. Uwe John, Alfred-Wegener-Institute, Helmholtz Centre for Polar and Marine Research
Keyword(s):
References:
Arar, E J; Collins, G B (1997): Method 445.0 In Vitro Determination of Chlorophyll a and Pheophytin ain Marine and Freshwater Algae by Fluorescence. U.S. Environmental Protection Agency, Washington, DC, 1997, https://cfpub.epa.gov/si/si_public_record_report.cfm?Lab=NERL&dirEntryId=309417 (M445_0.PDF)
Coverage:
Median Latitude: 78.993830 * Median Longitude: 15.822923 * South-bound Latitude: 77.641200 * West-bound Longitude: 9.460000 * North-bound Latitude: 80.417000 * East-bound Longitude: 22.168600
Date/Time Start: 2023-08-18T11:25:00 * Date/Time End: 2023-08-30T12:36:00
Minimum DEPTH, water: 0.2 m * Maximum DEPTH, water: 40.1 m
Event(s):
HE627_1-3 * Latitude: 77.711608 * Longitude: 13.358768 * Date/Time: 2023-08-18T11:31:50 * Elevation: -46.0 m * O2A Registry URI: hdl:10013/sensor.2a34f565-9cb1-4e9a-8c44-62e6cec7f1c5 * Location: North Greenland Sea * Campaign: HE627 (FjordChange) * Basis: Heincke * Method/Device: CTD/Rosette (CTD-RO) * Comment: rope length max: 41m
HE627_2-4 * Latitude Start: 77.641378 * Longitude Start: 14.471704 * Latitude End: 77.641749 * Longitude End: 14.472390 * Date/Time Start: 2023-08-19T06:47:05 * Date/Time End: 2023-08-19T07:33:46 * Elevation Start: -156.0 m * Elevation End: -156.0 m * O2A Registry URI: hdl:10013/sensor.2a34f565-9cb1-4e9a-8c44-62e6cec7f1c5 * Location: North Greenland Sea * Campaign: HE627 (FjordChange) * Basis: Heincke * Method/Device: CTD/Rosette (CTD-RO)
HE627_3-4 * Latitude: 77.828168 * Longitude: 16.576622 * Date/Time: 2023-08-20T10:39:10 * Elevation: -66.0 m * O2A Registry URI: hdl:10013/sensor.2a34f565-9cb1-4e9a-8c44-62e6cec7f1c5 * Location: North Greenland Sea * Campaign: HE627 (FjordChange) * Basis: Heincke * Method/Device: CTD/Rosette (CTD-RO) * Comment: rope length max: 61m
Parameter(s):
| # | Name | Short Name | Unit | Principal Investigator | Method/Device | Comment |
|---|---|---|---|---|---|---|
| 1 | Event label | Event | Albinus, Michelle | |||
| 2 | DATE/TIME | Date/Time | Albinus, Michelle | Geocode | ||
| 3 | LATITUDE | Latitude | Albinus, Michelle | Geocode | ||
| 4 | LONGITUDE | Longitude | Albinus, Michelle | Geocode | ||
| 5 | DEPTH, water | Depth water | m | Albinus, Michelle | Geocode | |
| 6 | Chlorophyll a | Chl a | µg/l | Albinus, Michelle | Fluorometer, Turner Designs, Trilogy 7200-002 | according to Arar & Collins (1997) (EPA445), Turner Manual |
| 7 | Phaeophytin a | Phaeophytin a | µg/l | Albinus, Michelle | Fluorometer, Turner Designs, Trilogy 7200-002 | according to Arar & Collins (1997) (EPA445), Turner Manual |
| 8 | Phaeophytin a/chlorophyll a ratio | Phaeophytin a/Chl a | Albinus, Michelle |
License:
Creative Commons Attribution 4.0 International (CC-BY-4.0)
Status:
Curation Level: Enhanced curation (CurationLevelC)
Size:
159 data points