/* DATA DESCRIPTION: Citation: Ólafsson, Jón; Takahashi, Taro (2006): Hydrochemistry measured on water bottle samples at station B3/90_55 during the MRI-LDEO cooperative study. Marine Research Institute, Reykjavik / Iceland, PANGAEA, https://doi.org/10.1594/PANGAEA.400824 New version: Ólafsson, Jón: Hydrochemistry measured on water bottle samples during Bjarni Saemundsson cruise B3/90. PANGAEA, https://doi.pangaea.de/10.1594/PANGAEA.844556 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: 68.000000 * LONGITUDE: -12.666700 DATE/TIME START: 1990-02-26T08:00:00 * DATE/TIME END: 1990-02-26T08:00:00 MINIMUM DEPTH, water: 0 m * MAXIMUM DEPTH, water: 1800 m Event(s): B3/90_55 (46BS1990-3_55) * LATITUDE: 68.000000 * LONGITUDE: -12.666700 * DATE/TIME: 1990-02-26T08:00:00 * ELEVATION: -1890.0 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: 154 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 -0.030 34.681 0.0 1027.850 343.69 0.70 9.83 3.61 2206.9 314.800 5 -0.030 34.678 5.0 1027.848 344.41 0.70 9.73 3.41 10 -0.030 34.678 10.0 1027.848 343.34 0.57 9.83 3.41 20 -0.030 34.677 20.0 1027.847 344.36 0.71 9.83 3.41 30 -0.020 34.677 30.0 1027.847 344.01 0.67 9.83 3.71 50 0.000 34.677 50.0 1027.846 341.60 0.71 9.93 3.71 75 0.010 34.677 75.0 1027.845 337.13 0.67 10.03 3.71 100 0.050 34.677 101.0 1027.843 340.93 0.72 10.13 3.71 150 -0.160 34.849 151.0 1027.993 330.39 0.91 12.84 4.92 200 -0.180 34.863 201.0 1028.005 329.63 0.94 13.24 5.72 300 -0.050 34.899 302.0 1028.027 307.57 0.98 14.05 6.72 400 -0.190 34.911 403.0 1028.044 297.11 1.01 14.15 7.52 600 -0.490 34.914 604.0 1028.062 302.56 1.00 14.45 8.43 800 -0.670 34.917 806.0 1028.072 304.71 1.00 14.35 9.43 1000 -0.760 34.919 1008.0 1028.078 302.92 1.00 14.45 10.53 1200 -0.800 34.919 1210.0 1028.080 304.08 1.03 14.65 11.04 1400 -0.870 34.919 1413.0 1028.083 307.97 1.03 14.75 11.64 1600 -0.890 34.920 1615.0 1028.084 302.30 1.03 15.05 12.34 1800 -0.890 34.920 1818.0 1028.084 299.62 1.04 15.15 13.54