BCO-DMO ERDDAP
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Row Type Variable Name Attribute Name Data Type Value
attribute NC_GLOBAL cdm_data_type String Other
attribute NC_GLOBAL Conventions String COARDS, CF-1.6, ACDD-1.3
attribute NC_GLOBAL creator_email String info at bco-dmo.org
attribute NC_GLOBAL creator_name String BCO-DMO
attribute NC_GLOBAL creator_url String https://www.bco-dmo.org/ (external link)
attribute NC_GLOBAL defaultDataQuery String &time<now
attribute NC_GLOBAL doi String 10.26008/1912/bco-dmo.957527.1
attribute NC_GLOBAL Easternmost_Easting double 179.4858
attribute NC_GLOBAL geospatial_lat_max double 77.0399
attribute NC_GLOBAL geospatial_lat_min double 27.5003
attribute NC_GLOBAL geospatial_lat_units String degrees_north
attribute NC_GLOBAL geospatial_lon_max double 179.4858
attribute NC_GLOBAL geospatial_lon_min double -174.8726
attribute NC_GLOBAL geospatial_lon_units String degrees_east
attribute NC_GLOBAL infoUrl String https://osprey.bco-dmo.org/dataset/957527 (external link)
attribute NC_GLOBAL institution String BCO-DMO
attribute NC_GLOBAL license String The data may be used and redistributed for free but is not intended\nfor legal use, since it may contain inaccuracies. Neither the data\nContributor, ERD, NOAA, nor the United States Government, nor any\nof their employees or contractors, makes any warranty, express or\nimplied, including warranties of merchantability and fitness for a\nparticular purpose, or assumes any legal liability for the accuracy,\ncompleteness, or usefulness, of this information.
attribute NC_GLOBAL Northernmost_Northing double 77.0399
attribute NC_GLOBAL sourceUrl String (local files)
attribute NC_GLOBAL Southernmost_Northing double 27.5003
attribute NC_GLOBAL summary String Duplicate samples were collected for total alkalinity on two cruises in 2023 aboard the R/V Mirai (MR23-06C and MR23-07) in order to compare two different methods of total alkalinity titrations: the open cell with non-linear least squares fitting and single step with spectrophotometric endpoint detection. Measurements of dissolved inorganic carbon and pH on the total scale were also made as quality control checks. GLODAPv2 hinted at a potential offset between laboratories in the Pacific Ocean. We hypothesized that if non-negligible amounts of organic alkalinity were present, the different methods could be titrating different amounts leading to differences between the methods. The results show that any offset is within the uncertainty of the analytical precision and presence of organic alkalinity in open ocean waters remains inconclusive.
attribute NC_GLOBAL time_coverage_end String 2023-11-01T03:38:00Z
attribute NC_GLOBAL time_coverage_start String 2023-09-07T21:11:00Z
attribute NC_GLOBAL title String [Open cell and single-step titration method comparison] - Open cell and single-step method for total alkalinity titrations from samples collected on R/V Mirai cruises MR23-06C and MR23-07 in the North Pacific and Western Arctic from September to November 2023 (US GEOTRACES GP17-OCE and GP17-ANT: Inorganic Carbon Cycling in the South Pacific and Southern Oceans by Direct Measurement)
attribute NC_GLOBAL Westernmost_Easting double -174.8726
variable Cruise String
attribute Cruise long_name String Cruise
attribute Cruise units String unitless
variable sample_ID int
attribute sample_ID actual_range int 1100, 70136
attribute sample_ID long_name String Sample_id
attribute sample_ID units String unitless
variable Station int
attribute Station actual_range int 1, 70
attribute Station long_name String Station
attribute Station units String unitless
variable Cast int
attribute Cast actual_range int 1, 3
attribute Cast long_name String Cast
attribute Cast units String unitless
variable NiskinBottle_No int
attribute NiskinBottle_No actual_range int 0, 36
attribute NiskinBottle_No long_name String Niskinbottle_no
attribute NiskinBottle_No units String unitless
variable Date String
attribute Date long_name String Date
attribute Date units String unitless
variable time_unitless String
attribute time_unitless long_name String Time
attribute time_unitless units String unitless
variable time double
attribute time _CoordinateAxisType String Time
attribute time actual_range double 1.69412106E9, 1.69880988E9
attribute time axis String T
attribute time ioos_category String Time
attribute time long_name String Iso_datetime_utc
attribute time standard_name String time
attribute time time_origin String 01-JAN-1970 00:00:00
attribute time units String seconds since 1970-01-01T00:00:00Z
variable latitude float
attribute latitude _CoordinateAxisType String Lat
attribute latitude actual_range float 27.5003, 77.0399
attribute latitude axis String Y
attribute latitude ioos_category String Location
attribute latitude long_name String Latitude
attribute latitude standard_name String latitude
attribute latitude units String degrees_north
variable longitude float
attribute longitude _CoordinateAxisType String Lon
attribute longitude actual_range float -174.8726, 179.4858
attribute longitude axis String X
attribute longitude ioos_category String Location
attribute longitude long_name String Longitude
attribute longitude standard_name String longitude
attribute longitude units String degrees_east
variable CTD_Salinity float
attribute CTD_Salinity actual_range float 28.8814, 35.4799
attribute CTD_Salinity long_name String Ctd_salinity
attribute CTD_Salinity units String unitless
variable CTD_Salinity_flag int
attribute CTD_Salinity_flag actual_range int 2, 9
attribute CTD_Salinity_flag long_name String Ctd_salinity_flag
attribute CTD_Salinity_flag units String unitless
variable Bottle_Salinity float
attribute Bottle_Salinity actual_range float 24.1627, 35.474
attribute Bottle_Salinity long_name String Bottle_salinity
attribute Bottle_Salinity units String unitless
variable Bot_Sal_flag int
attribute Bot_Sal_flag actual_range int 2, 9
attribute Bot_Sal_flag long_name String Bot_sal_flag
attribute Bot_Sal_flag units String unitless
variable CTD_Pressure float
attribute CTD_Pressure actual_range float 5.0, 6137.2
attribute CTD_Pressure long_name String Ctd_pressure
attribute CTD_Pressure units String decibars (db)
variable Total_Alkalinity_Single_Step_method float
attribute Total_Alkalinity_Single_Step_method actual_range float 1791.2, 2438.3
attribute Total_Alkalinity_Single_Step_method long_name String Total_alkalinity_single_step_method
attribute Total_Alkalinity_Single_Step_method units String micromoles per kilogram of seawater (umol/kg_sw)
variable Total_Alkalinity_Single_Step_Method_flag int
attribute Total_Alkalinity_Single_Step_Method_flag actual_range int 2, 6
attribute Total_Alkalinity_Single_Step_Method_flag long_name String Total_alkalinity_single_step_method_flag
attribute Total_Alkalinity_Single_Step_Method_flag units String unitless
variable Total_Alkalinity_Open_Cell_Method float
attribute Total_Alkalinity_Open_Cell_Method actual_range float 1788.236, 2436.068
attribute Total_Alkalinity_Open_Cell_Method long_name String Total_alkalinity_open_cell_method
attribute Total_Alkalinity_Open_Cell_Method units String micromoles per kilogram of seawater (umol/kg_sw)
variable Total_Alkalinity_Open_Cell_Method_Flag int
attribute Total_Alkalinity_Open_Cell_Method_Flag actual_range int 2, 5
attribute Total_Alkalinity_Open_Cell_Method_Flag long_name String Total_alkalinity_open_cell_method_flag
attribute Total_Alkalinity_Open_Cell_Method_Flag units String unitless
variable Ship_DIC float
attribute Ship_DIC actual_range float 1740.5, 2393.9
attribute Ship_DIC long_name String Ship_dic
attribute Ship_DIC units String micromoles per kilogram of seawater (umol/kg_sw)
variable Ship_DIC_flag int
attribute Ship_DIC_flag actual_range int 2, 6
attribute Ship_DIC_flag long_name String Ship_dic_flag
attribute Ship_DIC_flag units String unitless
variable Lab_DIC float
attribute Lab_DIC actual_range float 1734.5, 2397.5
attribute Lab_DIC long_name String Lab_dic
attribute Lab_DIC units String micromoles per kilogram of seawater (umol/kg_sw)
variable Lab_DIC_analytical_flag int
attribute Lab_DIC_analytical_flag actual_range int 2, 4
attribute Lab_DIC_analytical_flag long_name String Lab_dic_analytical_flag
attribute Lab_DIC_analytical_flag units String unitless
variable Lab_DIC_Storage_flag int
attribute Lab_DIC_Storage_flag actual_range int 2, 4
attribute Lab_DIC_Storage_flag long_name String Lab_dic_storage_flag
attribute Lab_DIC_Storage_flag units String unitless
variable Ship_pHt float
attribute Ship_pHt actual_range float 7.2135, 8.0449
attribute Ship_pHt long_name String Ship_pht
attribute Ship_pHt units String total scale
variable Ship_pHt_flag int
attribute Ship_pHt_flag actual_range int 2, 9
attribute Ship_pHt_flag long_name String Ship_pht_flag
attribute Ship_pHt_flag units String unitless
variable Ship_pH_Temp int
attribute Ship_pH_Temp actual_range int 25, 25
attribute Ship_pH_Temp long_name String Ship_ph_temp
attribute Ship_pH_Temp units String degrees Celsius
variable Lab_pHt float
attribute Lab_pHt actual_range float 7.2712, 8.1372
attribute Lab_pHt long_name String Lab_pht
attribute Lab_pHt units String total scale
variable Lab_pHt_analytical_flag int
attribute Lab_pHt_analytical_flag actual_range int 2, 9
attribute Lab_pHt_analytical_flag long_name String Lab_pht_analytical_flag
attribute Lab_pHt_analytical_flag units String unitless
variable Lab_pHt_storage_flag int
attribute Lab_pHt_storage_flag actual_range int 2, 9
attribute Lab_pHt_storage_flag long_name String Lab_pht_storage_flag
attribute Lab_pHt_storage_flag units String unitless
variable Lab_pHt_temp int
attribute Lab_pHt_temp actual_range int 20, 20
attribute Lab_pHt_temp long_name String Lab_pht_temp
attribute Lab_pHt_temp units String degrees Celsius
variable CTDTEMP float
attribute CTDTEMP actual_range float -1.6626, 26.5914
attribute CTDTEMP long_name String Ctdtemp
attribute CTDTEMP units String degrees Celsius
variable CTDTEMP_Flag int
attribute CTDTEMP_Flag actual_range int 2, 9
attribute CTDTEMP_Flag long_name String Ctdtemp_flag
attribute CTDTEMP_Flag units String unitless
variable O2 float
attribute O2 actual_range float 14.53, 449.44
attribute O2 long_name String O2
attribute O2 units String micromoles per kilogram of seawater (umol/kg_sw)
variable O2_flag int
attribute O2_flag actual_range int 2, 9
attribute O2_flag long_name String O2_flag
attribute O2_flag units String unitless
variable DOC float
attribute DOC actual_range float 34.2, 76.8
attribute DOC long_name String Doc
attribute DOC units String micromoles per kilogram of seawater (umol/kg_sw)
variable DOC_flag int
attribute DOC_flag actual_range int 2, 9
attribute DOC_flag long_name String Doc_flag
attribute DOC_flag units String unitless
variable NO3 float
attribute NO3 actual_range float -0.02, 44.61
attribute NO3 long_name String No3
attribute NO3 units String micromoles per kilogram of seawater (umol/kg_sw)
variable NO3_flag int
attribute NO3_flag actual_range int 2, 9
attribute NO3_flag long_name String No3_flag
attribute NO3_flag units String unitless
variable NO2 float
attribute NO2 actual_range float 0.0, 0.33
attribute NO2 long_name String No2
attribute NO2 units String micromoles per kilogram of seawater (umol/kg_sw)
variable NO2_flag int
attribute NO2_flag actual_range int 2, 9
attribute NO2_flag long_name String No2_flag
attribute NO2_flag units String unitless
variable Si float
attribute Si actual_range float 1.09, 234.28
attribute Si long_name String Si
attribute Si units String micromoles per kilogram of seawater (umol/kg_sw)
variable Si_flag int
attribute Si_flag actual_range int 2, 9
attribute Si_flag long_name String Si_flag
attribute Si_flag units String unitless
variable PO4 float
attribute PO4 actual_range float -0.003, 3.169
attribute PO4 long_name String Po4
attribute PO4 units String micromoles per kilogram of seawater (umol/kg_sw)
variable PO4_flag int
attribute PO4_flag actual_range int 2, 9
attribute PO4_flag long_name String Po4_flag
attribute PO4_flag units String unitless
variable NH4 float
attribute NH4 actual_range float -0.01, 7.58
attribute NH4 long_name String Nh4
attribute NH4 units String micromoles per kilogram of seawater (umol/kg_sw)
variable NH4_flag int
attribute NH4_flag actual_range int 2, 9
attribute NH4_flag long_name String Nh4_flag
attribute NH4_flag units String unitless
variable fDOM float
attribute fDOM actual_range float 0.001, 0.016
attribute fDOM long_name String Fdom
attribute fDOM units String RU
variable fDOM_flag int
attribute fDOM_flag actual_range int 2, 9
attribute fDOM_flag long_name String Fdom_flag
attribute fDOM_flag units String unitless

 
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