Discrete measurements (TCO2, TALK, pCO2, and pH) metadata form

• Investigator:
  • Name: Dr. Wen-Chen Chou
  • Organization: National Taiwan Ocean University
  • Address:
    Institute of Marine Environmental Chemistry and Ecology National Taiwan Ocean University 2 Beining Rd., 20224 Keelung, Taiwan, R.O.C.
  • Phone: 886-2-2463-4517
  • Email: wcchou@mail.ntou.edu.tw
• Dataset Info:
  • Dataset ID: ORI_885_20080102
  • Submission Dates:
    • Initial Submission: 2010/03/14
    • Revised Submission:
• Cruise Info:
  • Experiment:
    • Experiment Name: Long-tern Observation and Research of the East China Sea
    • Cruise:
      • Cruise ID: ORI 855
      • Section:
      • Geographical Coverage:
        • Geographical Region:
          East China Sea
        • Bounds:
          • Westernmost Longitude: +120.0833
            Degrees, Minutes, Seconds: E
          • Easternmost Longitude: +128.1488
            Degrees, Minutes, Seconds: E
          • Northernmost Latitude: +31.6263
            Degrees, Minutes, Seconds: N
          • Southernmost Latitude: +25.4227
            Degrees, Minutes, Seconds: N
      • Temporal Coverage:
        • Start Date: 2008/01/02
        • End Date: 2008/01/09
      • Ports of Call:
        
  • Vessel:
    • Vessel Name: Ocean Research I
    • Vessel ID:
    • Country: R.O.C. (Taiwan)
    • Vessel Owner: National Taiwan University
• Variables Info:
  • Variable:
    • Variable Name: Temperature
    • Description of Variable: degree C
  • Method Description:
    • Total C02 Data:
      • TCO2 Analysis Method:
        Nondispersive infrared (NDIR)
      • Standardization Technique:
        • Technique Description
          By measuring 5 different volumes of CRM (0.65, 0.70, 0.75, 0.80, 0.85 ml), the calibration line was established.
        • Sample Volume(mL):
        • CRM Info:
          • Correction Magnitude: 0.35% (~ 7 micro mole/kg seawater
          • Batch Number:
            Batch 82 Batch 83
          • CRM Analysis Info:
            CRM was analyzed once in 15 times measurements
      • Field Replicate Info:
        
      • Poisoning Info:
        • Poisoning Correction Description:
          No
        • Poison Volume(mL): 0.2
      • Accuracy Info:
        Based on 20 times measurements of CRM, both precision and accuracy were estimated to be 0.15%.
      • Method References:
        Cai, W.-J., Wang, Y.C., 1998. The chemistry, fluxes and sources of carbon dioxide in the estuarine waters of the Satilla and Altamaha Rivers, Georgia. Limnol. Oceanogr. 43, 657-668.
    • Alkalinity:
      • Curve Fitting Method:
        Linear least-squares fit
      • Type of Titration: Gran titration
      • Description of Other Titration:
        No
      • Cell Type: Open
      • CRM Scale: 2335.02
      • Sample Volume(mL):
      • Magnitude of Blank Correction: 0
      • Accuracy Info:
        Based on 10 times measurements of CRM, both precision and accuracy were estimated to be 0.15%.
      • Method References:
        Cai, W.-J., Wang, Y.C., 1998. The chemistry, fluxes and sources of carbon dioxide in the estuarine waters of the Satilla and Altamaha Rivers, Georgia. Limnol. Oceanogr. 43, 657-668.
    • pCO2 Data:
      • Analysis:
        • pCO2 Analysis Method:
          
        • Sample Volume(mL):
        • Headspace Volume:
        • Measurement Temperature:
        • Temperature Normalization: 25
        • Temperature Correction Method:
        • Variable Reported:
        • Gas:
        • Standard Gas Concentrations:
        • Frequency of Standardization:
      • Field Replicate Info:
        
      • Storage Method:
        
      • Accuracy Info:
        
      • Method References:
        
    • pH Data:
      • pH Scale: total scale
      • pH Analysis Method:
        Electronic (Electrode: Radiometer pHC2401-7 combination elctrode)
      • Calibration Info:
        • Calibration Description:
          The buffers 2-amino-2-hydroxymethyl-1,3-propanediol (TRIS) and 2-aminopyridine, prepared at salinity of 35, were used to calibrate the electrode.
        • In Situ Temperature: Ranging from 7.5 to 24.4
        • Temperature of Analysis: 25
        • Temperature Normalization: 25
        • In Situ Pressure: 2 to 500 db
      • Accuracy Info:
        
      • Method References:
        Dickson, A.G., Sabine, C.L., Christian, J.R. (Eds.), 2007. Guide to best practices for ocean CO2 measurements. PICES special publication 3, 191pp.
  • Additional information:
    
  • Data Set References:
    Chou, W.C., Gong G.C., Tseng, C.M., Sheu, D.D., Hung, C.C., Chang, L.P., 2010.The carbonate system in the East China Sea in winter: a eutrophication-induced seasonal shift in CO2 uptake?, Marine Chemistry. (in revise)
  • Citation:
    Chou, W.C., Gong G.C., Tseng, C.M., Sheu, D.D., Hung, C.C., Chang, L.P., 2010.The carbonate system in the East China Sea in winter: a eutrophication-induced seasonal shift in CO2 uptake?, Marine Chemistry. (in revise)
  • Data Set Link:
    • URL: http://www.odb.ntu.edu.tw
    • Label: LORECS dataset display
    • Link Note:
      LORECS dataset is cuurently under construction.