/* DATA DESCRIPTION: Citation: Ólafsson, Jón; Takahashi, Taro (2006): Hydrochemistry measured on water bottle samples at station B3/90_31 during the MRI-LDEO cooperative study. Marine Research Institute, Reykjavik / Iceland, PANGAEA, https://doi.org/10.1594/PANGAEA.400823 Related to: Chipman, D W; Marra, John; Takahashi, Taro (1993): Primary production at 47°N and 20°W in the North Atlantic Ocean: a comparison between the 14C incubation method and the mixed layer budget. Deep Sea Research Part II: Topical Studies in Oceanography, 40(1-2), 151-169, https://doi.org/10.1016/0967-0645(93)90011-B Grasshoff, Klaus (1970): A simultaneous multiple channel system for nutrient analysis in seawater with analog and digital data record. Technicon International Congress 1969, 11, 133-145 Murphy, Judith A; Riley, J P (1962): A modified single solution method for the determination of phosphate in natural waters. Analytica Chimica Acta, 27, 31-36, https://doi.org/10.1016/S0003-2670(00)88444-5 Takahashi, Taro; Ólafsson, Jón; Goddard, J G; Chipman, D W; Sutherland, Stewart C (1993): Seasonal variation of CO2 and nutrient salts over the high latitude oceans: A comparative study. Global Biogeochemical Cycles, 7(4), 843-878, https://doi.org/10.1029/93GB02263 Coverage: LATITUDE: 63.000000 * LONGITUDE: -21.466700 DATE/TIME START: 1990-02-22T10:00:00 * DATE/TIME END: 1990-02-22T10:00:00 MINIMUM DEPTH, water: 0 m * MAXIMUM DEPTH, water: 960 m Event(s): B3/90_31 (46BS1990-3_31) * LATITUDE: 63.000000 * LONGITUDE: -21.466700 * DATE/TIME: 1990-02-22T10:00:00 * ELEVATION: -971.0 m * LOCATION: North Atlantic * CAMPAIGN: B03/90 * BASIS: Bjarni Saemundsson * METHOD/DEVICE: CTD/Rosette (CTD-RO) Comment: For pCO2 measurements were about 0.5 liter of air equilibrated with sample. Sample volume 4. Nutrient samples are collected in 250 ml soft low density polyethylene acid washed bottles. They are kept refrigerated until analysis if it was not carried out soon after sampling. Otherwisee samples are stored at -20°C. Parameter(s): DEPTH, water [m] (Depth water) * GEOCODE Temperature, water [°C] (Temp) * PI: Ólafsson, Jón (jon@hafro.is) * METHOD/DEVICE: CTD Salinity (Sal) * PI: Ólafsson, Jón (jon@hafro.is) * METHOD/DEVICE: CTD Pressure, water [dbar] (Press) * PI: Ólafsson, Jón (jon@hafro.is) * METHOD/DEVICE: CTD Density, mass density [kg/m**3] (Density) * PI: Ólafsson, Jón (jon@hafro.is) * METHOD/DEVICE: Calculated Oxygen [µmol/l] (O2) * PI: Ólafsson, Jón (jon@hafro.is) Phosphate [µmol/l] ([PO4]3-) * PI: Ólafsson, Jón (jon@hafro.is) Nitrate [µmol/l] ([NO3]-) * PI: Ólafsson, Jón (jon@hafro.is) Silicate [µmol/l] (Si(OH)4) * PI: Ólafsson, Jón (jon@hafro.is) Carbon dioxide, total [µmol/l] (TCO2) * PI: Ólafsson, Jón (jon@hafro.is) * METHOD/DEVICE: Coulometric titration (Knap et al., 1996, IOC Manuals and Guides 29, UNESCO) (URI: hdl:10013/epic.27912.d001) * COMMENT: Known volume loops; sample volume: 20-25 g Partial pressure of carbon dioxide (water) at sea surface temperature (wet air) [µatm] (pCO2water_SST_wet) * PI: Ólafsson, Jón (jon@hafro.is) * METHOD/DEVICE: Gas chromatography * COMMENT: Measured close to in situ temperature - theta normalized License: Creative Commons Attribution 3.0 Unported (CC-BY-3.0) (URI: https://creativecommons.org/licenses/by/3.0/) Size: 122 data points */ Depth water [m] Temp [°C] Sal Press [dbar] Density [kg/m**3] O2 [µmol/l] [PO4]3- [µmol/l] [NO3]- [µmol/l] Si(OH)4 [µmol/l] TCO2 [µmol/l] pCO2water_SST_wet [µatm] 0 7.100 35.169 0.0 1027.538 280.14 1.01 14.14 6.22 2191.6 356.100 5 7.110 35.166 5.0 1027.534 284.30 0.90 13.94 6.02 10 7.120 35.178 10.0 1027.542 287.96 0.95 13.84 6.02 20 7.130 35.168 20.0 1027.533 287.02 0.96 13.94 6.42 30 7.130 35.169 30.0 1027.534 283.27 0.95 14.14 6.42 50 7.130 35.167 50.0 1027.532 283.00 0.96 13.94 6.42 75 7.120 35.169 75.0 1027.535 280.37 0.95 14.04 6.42 100 7.120 35.169 101.0 1027.535 279.83 0.94 14.14 6.62 150 7.120 35.179 151.0 1027.543 280.06 0.95 13.94 6.42 200 7.110 35.178 201.0 1027.544 282.02 0.95 14.14 6.62 300 7.090 35.165 302.0 1027.536 278.18 0.91 13.94 6.62 400 7.080 35.170 403.0 1027.542 278.72 0.80 14.04 6.62 600 6.640 35.117 604.0 1027.561 258.40 1.02 15.84 9.02 800 5.410 35.083 806.0 1027.692 258.44 1.13 16.25 9.23 960 4.600 35.005 968.0 1027.725 268.94 1.13 16.35 9.63