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Siebers, D; Hickel, Wolfgang (1999): Hydrochemistry and phytoplankton abundance at time series station Helgoland Roads, North Sea, in 1984 [dataset]. PANGAEA, https://doi.org/10.1594/PANGAEA.55843, In: Wiltshire, Karen Helen; Carstens, Kristine; Ecker, Ursula; Kirstein, Inga V (2024): Hydrochemistry at time series station Helgoland Roads, North Sea since 1873 [dataset publication series]. Alfred Wegener Institute - Biological Institute Helgoland, PANGAEA, https://doi.org/10.1594/PANGAEA.960375

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Related to:
Siebers, D (1985): Jahresbericht 1984. Biologische Anstalt Helgoland, aus dem Geschäftsbereich des Bundesministers für Bildung und Wissenschaft, 131 pp
Funding:
Fourth Framework Programme (FP4), grant/award no. MAS3970141: Silicon Cycling in the World Ocean
Coverage:
Latitude: 54.188330 * Longitude: 7.900000
Date/Time Start: 1984-01-02T08:25:00 * Date/Time End: 1984-12-28T09:00:00
Minimum Elevation: -10.0 m * Maximum Elevation: -10.0 m
Event(s):
HelgolandRoads1984 (Kabeltonne) * Latitude: 54.188330 * Longitude: 7.900000 * Date/Time Start: 1984-01-01T00:00:00 * Date/Time End: 1984-12-31T23:59:00 * Elevation: -10.0 m * DEIMS ID: deims.org * O2A Registry URI: registry.o2a-data.de * Location: German Bight, North Sea * Campaign: LTER_HelgolandRoads (Kabeltonne, Long-term Ecological Research Helgoland Roads) * Basis: Marine Station Helgoland * Method/Device: Monitoring (MON)
Parameter(s):
#NameShort NameUnitPrincipal InvestigatorMethod/DeviceComment
1DATE/TIMEDate/TimeGeocode
2Temperature, waterTemp°CHickel, WolfgangMercury thermometer, in situ
3SalinitySalHickel, WolfgangSalinometer, inductive
4Depth of Secchi Diskz(SD)mHickel, WolfgangSecchi disc
5Nitrate[NO3]-µmol/lHickel, WolfgangReduction by copper coated cadmium granulate
6Nitrite[NO2]-µmol/lHickel, WolfgangPhotometer, azo-dye (Bendschneider & Robinson, 1952, J Mar Res, 11:87-96)
7Ammonium[NH4]+µmol/lHickel, WolfgangPhotometer, DTT
8Nitrogen, inorganic, dissolvedDINµmol/lHickel, WolfgangCalculated (sum of Nitrate, Nitrite, Ammonium)
9Phosphate[PO4]3-µmol/lHickel, WolfgangPhotometer, molybdene blue, reduct ascorbic acid (Grasshoff, 1979, Chemie GmbH)
10SilicateSi(OH)4µmol/lHickel, WolfgangPhotometer, beta-silicomolybdic acid, modified (Carlberg, 1972, ICES Res Rep 29)
11PhytoplanktonPhytopl#/lHickel, WolfgangQuantitative phytoplankton method (Utermöhl, 1958)
12DiatomsDiatoms#/lHickel, WolfgangQuantitative phytoplankton method (Utermöhl, 1958)
13FlagellatesFlag#/lHickel, WolfgangQuantitative phytoplankton method (Utermöhl, 1958)
14Phytoplankton, biomass as carbonPhytopl Cµg/lHickel, WolfgangQuantitative phytoplankton method (Utermöhl, 1958)
15Diatoms, biomass as carbonDiatom Cµg/lHickel, WolfgangQuantitative phytoplankton method (Utermöhl, 1958)
16Flagellates, biomass as carbonFlagellate Cµg/lHickel, WolfgangQuantitative phytoplankton method (Utermöhl, 1958)
17AnalystAnalystHickel, Wolfgang
Size:
3918 data points

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