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Dataset Title:  Particulate & dissolved Po-210 & Pb-210 in seawater, snow, melt ponds, ice
core, ice-rafted sediments, and aerosols from the US GEOTRACES Arctic
cruise (HLY1502) on USCGC Healy from August to October 2015
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Institution:  BCO-DMO   (Dataset ID: bcodmo_dataset_794064)
Information:  Summary ? | License ? | ISO 19115 | Metadata | Background (external link) | Files | Make a graph
 
Variable ?   Optional
Constraint #1 ?
Optional
Constraint #2 ?
   Minimum ?
 
   Maximum ?
 
 data_type (unitless) ?          "Aerosols"    "Superstation"
 Station_ID (unitless) ?          1    46
 Start_Date_UTC (unitless) ?          "2015-08-10"    "NaN"
 Start_Time_UTC (unitless) ?          "00:20"    "NaN"
 End_Date_UTC (unitless) ?          "2015-08-17"    "NaN"
 End_Time_UTC (unitless) ?          "02:42"    "NaN"
 time (ISO Date Time UTC Start, UTC) ?          2015-08-10T17:53:00Z    
  < slider >
 ISO_DateTime_UTC_End (unitless) ?          "2015-08-17T17:15Z"    "NaN"
 latitude (degrees_north) ?          56.074    91.625
  < slider >
 longitude (degrees_east) ?          -184.104    176.761
  < slider >
 End_Latitude (Latitude, decimal degrees) ?          65.95    89.945
 End_Longitude (Longitude, decimal degrees) ?          -174.953    176.637
 Event_ID (unitless) ?          6060    6495
 Sample_ID (unitless) ?          "0-20"    "NaN"
 depth (Sample Depth, m) ?          3.0    3925.0
  < slider >
 Pb_210_A_T_CONC_HIVOL_7io704 (dpm/100m^-3) ?          0.056    2.15
 SD1_Pb_210_A_T_CONC_HIVOL_7io704 (dpm/100m^-3) ?          0.003    0.08
 Flag_Pb_210_A_T_CONC_HIVOL_7io704 (unitless) ?          1    4
 Po_210_A_T_CONC_HIVOL_th4b6v (dpm/100 m^3) ?          3.9E-4    0.12
 SD1_Po_210_A_T_CONC_HIVOL_th4b6v (dpm/100 m^3) ?          1.0E-4    0.01
 Flag_Po_210_A_T_CONC_HIVOL_th4b6v (unitless) ?          1    4
 Pb_210_D_CONC_MELTPOND_PUMP_l1tcik (dpm/100L^-1) ?          18.9    204.0
 SD1_Pb_210_D_CONC_MELTPOND_PUMP_l1tcik (dpm/100L^-1) ?          0.7    7.0
 Flag_Pb_210_D_CONC_MELTPOND_PUMP_l1tcik (unitless) ?          1    1
 Po_210_D_CONC_MELTPOND_PUMP_jltiiz (dpm/100L^-1) ?          9.35    61.0
 SD1_Po_210_D_CONC_MELTPOND_PUMP_jltiiz (dpm/100L^-1) ?          0.41    3.1
 Flag_Po_210_D_CONC_MELTPOND_PUMP_jltiiz (unitless) ?          1    1
 Po_210_D_CONC_BOTTLE_f0nzql (dpm/100L^-1) ?          0.29    15.3
 SD1_Po_210_D_CONC_BOTTLE_f0nzql (dpm/100L^-1) ?          0.03    0.74
 Flag_Po_210_D_CONC_BOTTLE_f0nzql (unitless) ?          1    1
 Pb_210_D_CONC_BOTTLE_ib2fhj (dpm/100L^-1) ?          0.18    30.2
 SD1_Pb_210_D_CONC_BOTTLE_ib2fhj (dpm/100L^-1) ?          0.02    2.6
 Flag_Pb_210_D_CONC_BOTTLE_ib2fhj (unitless) ?          1    1
 Pb_210_LPT_CONC_PUMP_apdd2j (dpm/100L^-1) ?          0.054    1.43
 SD1_Pb_210_LPT_CONC_PUMP_apdd2j (dpm/100L^-1) ?          0.0    0.31
 Flag_Pb_210_LPT_CONC_PUMP_apdd2j (unitless) ?          1    1
 Pb_210_SPT_CONC_PUMP_v4orif (dpm/100L^-1) ?          "0.45"    "NaN"
 SD1_Pb_210_SPT_CONC_PUMP_v4orif (dpm/100L^-1) ?          "0.02"    "NaN"
 Flag_Pb_210_SPT_CONC_PUMP_v4orif (unitless) ?          1    1
 Po_210_SPT_CONC_PUMP_m0d14g (dpm/100L^-1) ?          "0.033"    "NaN"
 SD1_Po_210_SPT_CONC_PUMP_m0d14g (dpm/100L^-1) ?          "0.001"    "NaN"
 Flag_Po_210_SPT_CONC_PUMP_m0d14g (unitless) ?          1    1
 Po_210_LPT_CONC_PUMP_mag4or (dpm/100L^-1) ?          "0.016"    "NaN"
 SD1_Po_210_LPT_CONC_PUMP_mag4or (dpm/100L^-1) ?          "0"    "NaN"
 Flag_Po_210_LPT_CONC_PUMP_mag4or (unitless) ?          1    1
 Po_210_ICE_D_CONC_CORER_x87y8c (dpm/100L^-1) ?          1.23    96.3
 SD1_Po_210_ICE_D_CONC_CORER_x87y8c (dpm/100L^-1) ?          0.1    3.3
 Flag_Po_210_ICE_D_CONC_CORER_x87y8c (unitless) ?          1    1
 Pb_210_ICE_D_CONC_CORER_x6zzed (dpm/100L^-1) ?          0.32    174.0
 SD1_Pb_210_ICE_D_CONC_CORER_x6zzed (dpm/100L^-1) ?          0.03    6.0
 Flag_Pb_210_ICE_D_CONC_CORER_x6zzed (unitless) ?          1    1
 Po_210_SNOW_D_CONC_GRAB_s66twp (dpm/100L^-1) ?          3.31    112.0
 SD1_Po_210_SNOW_D_CONC_GRAB_s66twp (dpm/100L^-1) ?          0.12    3.0
 Flag_Po_210_SNOW_D_CONC_GRAB_s66twp (unitless) ?          1    1
 Pb_210_SNOW_D_CONC_GRAB_pyg6ay (dpm/100L^-1) ?          158    1394
 SD1_Pb_210_SNOW_D_CONC_GRAB_pyg6ay (dpm/100L^-1) ?          5    51
 Flag_Pb_210_SNOW_D_CONC_GRAB_pyg6ay (unitless) ?          1    1
 Pb_210_ICE_D_CONC_GRAB_daladt (dpm/100L^-1) ?          3.79    19.2
 SD1_Pb_210_ICE_D_CONC_GRAB_daladt (dpm/100L^-1) ?          0.18    0.7
 Flag_Pb_210_ICE_D_CONC_GRAB_daladt (unitless) ?          1    1
 Po_210_ICE_D_CONC_GRAB_apyjov (dpm/100L^-1) ?          0.61    9.89
 SD1_Po_210_ICE_D_CONC_GRAB_apyjov (dpm/100L^-1) ?          0.1    0.45
 Flag_Po_210_ICE_D_CONC_GRAB_apyjov (unitless) ?          1    1
 
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The Dataset Attribute Structure (.das) for this Dataset

Attributes {
 s {
  data_type {
    String bcodmo_name "sample_descrip";
    String description "Sample type";
    String long_name "Data Type";
    String units "unitless";
  }
  Station_ID {
    Byte _FillValue 127;
    Byte actual_range 1, 46;
    String bcodmo_name "station";
    String description "Station ID number";
    String long_name "Station ID";
    String units "unitless";
  }
  Start_Date_UTC {
    String bcodmo_name "date";
    String description "Start date (UTC); format: yyyy-mm-dd";
    String long_name "Start Date UTC";
    String nerc_identifier "https://vocab.nerc.ac.uk/collection/P01/current/ADATAA01/";
    String units "unitless";
  }
  Start_Time_UTC {
    String bcodmo_name "time";
    String description "Start time (UTC); format: HH:MM";
    String long_name "Start Time UTC";
    String nerc_identifier "https://vocab.nerc.ac.uk/collection/P01/current/AHMSAA01/";
    String units "unitless";
  }
  End_Date_UTC {
    String bcodmo_name "date";
    String description "End date (UTC); format: yyyy-mm-dd";
    String long_name "End Date UTC";
    String nerc_identifier "https://vocab.nerc.ac.uk/collection/P01/current/ADATAA01/";
    String units "unitless";
  }
  End_Time_UTC {
    String bcodmo_name "time";
    String description "End time (UTC); format: HH:MM";
    String long_name "End Time UTC";
    String nerc_identifier "https://vocab.nerc.ac.uk/collection/P01/current/AHMSAA01/";
    String units "unitless";
  }
  time {
    String _CoordinateAxisType "Time";
    Float64 actual_range 1.43922918e+9, NaN;
    String axis "T";
    String bcodmo_name "ISO_DateTime_UTC";
    String description "Start date and time (UTC) formatted to ISO 8601 standard: yyyy-mm-ddTHH:MMZ";
    String ioos_category "Time";
    String long_name "ISO Date Time UTC Start";
    String nerc_identifier "https://vocab.nerc.ac.uk/collection/P01/current/DTUT8601/";
    String standard_name "time";
    String time_origin "01-JAN-1970 00:00:00";
    String units "seconds since 1970-01-01T00:00:00Z";
  }
  ISO_DateTime_UTC_End {
    String bcodmo_name "ISO_DateTime_UTC";
    String description "End date and time (UTC) formatted to ISO 8601 standard: yyyy-mm-ddTHH:MMZ";
    String long_name "ISO Date Time UTC End";
    String nerc_identifier "https://vocab.nerc.ac.uk/collection/P01/current/DTUT8601/";
    String units "unitless";
  }
  latitude {
    String _CoordinateAxisType "Lat";
    Float64 _FillValue NaN;
    Float64 actual_range 56.074, 91.625;
    String axis "Y";
    String bcodmo_name "latitude";
    Float64 colorBarMaximum 90.0;
    Float64 colorBarMinimum -90.0;
    String description "Latitude at start of sample collection; positive values = North";
    String ioos_category "Location";
    String long_name "Latitude";
    String nerc_identifier "https://vocab.nerc.ac.uk/collection/P09/current/LATX/";
    String source_name "Start_Latitude";
    String standard_name "latitude";
    String units "degrees_north";
  }
  longitude {
    String _CoordinateAxisType "Lon";
    Float64 _FillValue NaN;
    Float64 actual_range -184.104, 176.761;
    String axis "X";
    String bcodmo_name "longitude";
    Float64 colorBarMaximum 180.0;
    Float64 colorBarMinimum -180.0;
    String description "Longitude at start of sample collection; positive values = East";
    String ioos_category "Location";
    String long_name "Longitude";
    String nerc_identifier "https://vocab.nerc.ac.uk/collection/P09/current/LONX/";
    String source_name "Start_Longitude";
    String standard_name "longitude";
    String units "degrees_east";
  }
  End_Latitude {
    Float32 _FillValue NaN;
    Float32 actual_range 65.95, 89.945;
    String bcodmo_name "latitude";
    Float64 colorBarMaximum 90.0;
    Float64 colorBarMinimum -90.0;
    String description "Latitude at end of sample collection; positive values = North";
    String long_name "Latitude";
    String nerc_identifier "https://vocab.nerc.ac.uk/collection/P09/current/LATX/";
    String standard_name "latitude";
    String units "decimal degrees";
  }
  End_Longitude {
    Float32 _FillValue NaN;
    Float32 actual_range -174.953, 176.637;
    String bcodmo_name "longitude";
    Float64 colorBarMaximum 180.0;
    Float64 colorBarMinimum -180.0;
    String description "Longitude at end of sample collection; positive values = East";
    String long_name "Longitude";
    String nerc_identifier "https://vocab.nerc.ac.uk/collection/P09/current/LONX/";
    String standard_name "longitude";
    String units "decimal degrees";
  }
  Event_ID {
    Int16 _FillValue 32767;
    Int16 actual_range 6060, 6495;
    String bcodmo_name "event";
    String description "GEOTRACES event number";
    String long_name "Event ID";
    String nerc_identifier "https://vocab.nerc.ac.uk/collection/P01/current/EVTAGFL/";
    String units "unitless";
  }
  Sample_ID {
    String bcodmo_name "sample";
    String description "GEOTRACES sample number";
    String long_name "Sample ID";
    String nerc_identifier "https://vocab.nerc.ac.uk/collection/P02/current/ACYC/";
    String units "unitless";
  }
  depth {
    String _CoordinateAxisType "Height";
    String _CoordinateZisPositive "down";
    Float64 _FillValue NaN;
    Float64 actual_range 3.0, 3925.0;
    String axis "Z";
    String bcodmo_name "depth";
    String description "Sample depth";
    String ioos_category "Location";
    String long_name "Sample Depth";
    String nerc_identifier "https://vocab.nerc.ac.uk/collection/P09/current/DEPH/";
    String positive "down";
    String standard_name "depth";
    String units "m";
  }
  Pb_210_A_T_CONC_HIVOL_7io704 {
    Float32 _FillValue NaN;
    Float32 actual_range 0.056, 2.15;
    String bcodmo_name "metal_conc_air";
    String description "Concentration of Pb-210";
    String long_name "Pb 210 A T CONC HIVOL 7io704";
    String nerc_identifier "https://vocab.nerc.ac.uk/collection/P02/current/MTAT/";
    String units "dpm/100m^-3";
  }
  SD1_Pb_210_A_T_CONC_HIVOL_7io704 {
    Float32 _FillValue NaN;
    Float32 actual_range 0.003, 0.08;
    String bcodmo_name "metal_conc_air";
    String description "Propagated error from counting statistics, Po-209 spike, blanks";
    String long_name "SD1 Pb 210 A T CONC HIVOL 7io704";
    String nerc_identifier "https://vocab.nerc.ac.uk/collection/P02/current/MTAT/";
    String units "dpm/100m^-3";
  }
  Flag_Pb_210_A_T_CONC_HIVOL_7io704 {
    Byte _FillValue 127;
    Byte actual_range 1, 4;
    String bcodmo_name "q_flag";
    Float64 colorBarMaximum 150.0;
    Float64 colorBarMinimum 0.0;
    String description "SeaDataNet quality flag code used";
    String long_name "Flag Pb 210 A T CONC HIVOL 7io704";
    String units "unitless";
  }
  Po_210_A_T_CONC_HIVOL_th4b6v {
    Float32 _FillValue NaN;
    Float32 actual_range 3.9e-4, 0.12;
    String bcodmo_name "metal_conc_air";
    String description "Concentration of Po-210";
    String long_name "Po 210 A T CONC HIVOL Th4b6v";
    String nerc_identifier "https://vocab.nerc.ac.uk/collection/P02/current/MTAT/";
    String units "dpm/100 m^3";
  }
  SD1_Po_210_A_T_CONC_HIVOL_th4b6v {
    Float32 _FillValue NaN;
    Float32 actual_range 1.0e-4, 0.01;
    String bcodmo_name "metal_conc_air";
    String description "Propagated error from counting statistics, Po-209 spike, blanks";
    String long_name "SD1 Po 210 A T CONC HIVOL Th4b6v";
    String nerc_identifier "https://vocab.nerc.ac.uk/collection/P02/current/MTAT/";
    String units "dpm/100 m^3";
  }
  Flag_Po_210_A_T_CONC_HIVOL_th4b6v {
    Byte _FillValue 127;
    Byte actual_range 1, 4;
    String bcodmo_name "q_flag";
    Float64 colorBarMaximum 150.0;
    Float64 colorBarMinimum 0.0;
    String description "SeaDataNet quality flag code used";
    String long_name "Flag Po 210 A T CONC HIVOL Th4b6v";
    String units "unitless";
  }
  Pb_210_D_CONC_MELTPOND_PUMP_l1tcik {
    Float32 _FillValue NaN;
    Float32 actual_range 18.9, 204.0;
    String bcodmo_name "trace_metal_conc";
    String description "Dissolved Pb-210 concentration";
    String long_name "Pb 210 D CONC MELTPOND PUMP L1tcik";
    String nerc_identifier "https://vocab.nerc.ac.uk/collection/P03/current/C035/";
    String units "dpm/100L^-1";
  }
  SD1_Pb_210_D_CONC_MELTPOND_PUMP_l1tcik {
    Float32 _FillValue NaN;
    Float32 actual_range 0.7, 7.0;
    String bcodmo_name "trace_metal_conc";
    String description "Propagated error from counting statistics, Po-209 spike, blanks";
    String long_name "SD1 Pb 210 D CONC MELTPOND PUMP L1tcik";
    String nerc_identifier "https://vocab.nerc.ac.uk/collection/P03/current/C035/";
    String units "dpm/100L^-1";
  }
  Flag_Pb_210_D_CONC_MELTPOND_PUMP_l1tcik {
    Byte _FillValue 127;
    Byte actual_range 1, 1;
    String bcodmo_name "q_flag";
    Float64 colorBarMaximum 150.0;
    Float64 colorBarMinimum 0.0;
    String description "SeaDataNet quality flag code used";
    String long_name "Flag Pb 210 D CONC MELTPOND PUMP L1tcik";
    String units "unitless";
  }
  Po_210_D_CONC_MELTPOND_PUMP_jltiiz {
    Float32 _FillValue NaN;
    Float32 actual_range 9.35, 61.0;
    String bcodmo_name "trace_metal_conc";
    String description "Dissolved P0-210 concentration";
    String long_name "Po 210 D CONC MELTPOND PUMP Jltiiz";
    String nerc_identifier "https://vocab.nerc.ac.uk/collection/P03/current/C035/";
    String units "dpm/100L^-1";
  }
  SD1_Po_210_D_CONC_MELTPOND_PUMP_jltiiz {
    Float32 _FillValue NaN;
    Float32 actual_range 0.41, 3.1;
    String bcodmo_name "trace_metal_conc";
    String description "Propagated error from counting statistics, Po-209 spike, blanks";
    String long_name "SD1 Po 210 D CONC MELTPOND PUMP Jltiiz";
    String nerc_identifier "https://vocab.nerc.ac.uk/collection/P03/current/C035/";
    String units "dpm/100L^-1";
  }
  Flag_Po_210_D_CONC_MELTPOND_PUMP_jltiiz {
    Byte _FillValue 127;
    Byte actual_range 1, 1;
    String bcodmo_name "q_flag";
    Float64 colorBarMaximum 150.0;
    Float64 colorBarMinimum 0.0;
    String description "SeaDataNet quality flag code used";
    String long_name "Flag Po 210 D CONC MELTPOND PUMP Jltiiz";
    String units "unitless";
  }
  Po_210_D_CONC_BOTTLE_f0nzql {
    Float32 _FillValue NaN;
    Float32 actual_range 0.29, 15.3;
    String bcodmo_name "trace_metal_conc";
    String description "Dissolved Po-210 concentration";
    String long_name "Po 210 D CONC BOTTLE F0nzql";
    String nerc_identifier "https://vocab.nerc.ac.uk/collection/P03/current/C035/";
    String units "dpm/100L^-1";
  }
  SD1_Po_210_D_CONC_BOTTLE_f0nzql {
    Float32 _FillValue NaN;
    Float32 actual_range 0.03, 0.74;
    String bcodmo_name "trace_metal_conc";
    String description "Propagated error from counting statistics, Po-209 spike, blanks";
    String long_name "SD1 Po 210 D CONC BOTTLE F0nzql";
    String nerc_identifier "https://vocab.nerc.ac.uk/collection/P03/current/C035/";
    String units "dpm/100L^-1";
  }
  Flag_Po_210_D_CONC_BOTTLE_f0nzql {
    Byte _FillValue 127;
    Byte actual_range 1, 1;
    String bcodmo_name "q_flag";
    Float64 colorBarMaximum 150.0;
    Float64 colorBarMinimum 0.0;
    String description "SeaDataNet quality flag code used";
    String long_name "Flag Po 210 D CONC BOTTLE F0nzql";
    String units "unitless";
  }
  Pb_210_D_CONC_BOTTLE_ib2fhj {
    Float32 _FillValue NaN;
    Float32 actual_range 0.18, 30.2;
    String bcodmo_name "trace_metal_conc";
    String description "Dissolved Pb-210 concentration";
    String long_name "Pb 210 D CONC BOTTLE Ib2fhj";
    String nerc_identifier "https://vocab.nerc.ac.uk/collection/P03/current/C035/";
    String units "dpm/100L^-1";
  }
  SD1_Pb_210_D_CONC_BOTTLE_ib2fhj {
    Float32 _FillValue NaN;
    Float32 actual_range 0.02, 2.6;
    String bcodmo_name "trace_metal_conc";
    String description "Propagated error from counting statistics, Po-209 spike, blanks";
    String long_name "SD1 Pb 210 D CONC BOTTLE Ib2fhj";
    String nerc_identifier "https://vocab.nerc.ac.uk/collection/P03/current/C035/";
    String units "dpm/100L^-1";
  }
  Flag_Pb_210_D_CONC_BOTTLE_ib2fhj {
    Byte _FillValue 127;
    Byte actual_range 1, 1;
    String bcodmo_name "q_flag";
    Float64 colorBarMaximum 150.0;
    Float64 colorBarMinimum 0.0;
    String description "SeaDataNet quality flag code used";
    String long_name "Flag Pb 210 D CONC BOTTLE Ib2fhj";
    String units "unitless";
  }
  Pb_210_LPT_CONC_PUMP_apdd2j {
    Float32 _FillValue NaN;
    Float32 actual_range 0.054, 1.43;
    String bcodmo_name "trace_metal_conc";
    String description "Large particulate (>51 um) Pb-210 concentration; nd: No data";
    String long_name "Pb 210 LPT CONC PUMP Apdd2j";
    String nerc_identifier "https://vocab.nerc.ac.uk/collection/P03/current/C035/";
    String units "dpm/100L^-1";
  }
  SD1_Pb_210_LPT_CONC_PUMP_apdd2j {
    Float32 _FillValue NaN;
    Float32 actual_range 0.0, 0.31;
    String bcodmo_name "trace_metal_conc";
    String description "Propagated error from counting statistics, Po-209 spike, blanks";
    String long_name "SD1 Pb 210 LPT CONC PUMP Apdd2j";
    String nerc_identifier "https://vocab.nerc.ac.uk/collection/P03/current/C035/";
    String units "dpm/100L^-1";
  }
  Flag_Pb_210_LPT_CONC_PUMP_apdd2j {
    Byte _FillValue 127;
    Byte actual_range 1, 1;
    String bcodmo_name "q_flag";
    Float64 colorBarMaximum 150.0;
    Float64 colorBarMinimum 0.0;
    String description "SeaDataNet quality flag code used";
    String long_name "Flag Pb 210 LPT CONC PUMP Apdd2j";
    String units "unitless";
  }
  Pb_210_SPT_CONC_PUMP_v4orif {
    String bcodmo_name "trace_metal_conc";
    String description "Small particulate (1-51 um) Pb-210 concentration; nd: No data";
    String long_name "Pb 210 SPT CONC PUMP V4orif";
    String nerc_identifier "https://vocab.nerc.ac.uk/collection/P03/current/C035/";
    String units "dpm/100L^-1";
  }
  SD1_Pb_210_SPT_CONC_PUMP_v4orif {
    String bcodmo_name "trace_metal_conc";
    String description "Propagated error from counting statistics, Po-209 spike, blanks";
    String long_name "SD1 Pb 210 SPT CONC PUMP V4orif";
    String nerc_identifier "https://vocab.nerc.ac.uk/collection/P03/current/C035/";
    String units "dpm/100L^-1";
  }
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    Byte _FillValue 127;
    Byte actual_range 1, 1;
    String bcodmo_name "q_flag";
    Float64 colorBarMaximum 150.0;
    Float64 colorBarMinimum 0.0;
    String description "SeaDataNet quality flag code used";
    String long_name "Flag Pb 210 SPT CONC PUMP V4orif";
    String units "unitless";
  }
  Po_210_SPT_CONC_PUMP_m0d14g {
    String bcodmo_name "trace_metal_conc";
    String description "Small particulate (1-51 um) Po-210 concentration; nd: No data";
    String long_name "Po 210 SPT CONC PUMP M0d14g";
    String nerc_identifier "https://vocab.nerc.ac.uk/collection/P03/current/C035/";
    String units "dpm/100L^-1";
  }
  SD1_Po_210_SPT_CONC_PUMP_m0d14g {
    String bcodmo_name "trace_metal_conc";
    String description "Propagated error from counting statistics, Po-209 spike, blanks; BLD: Below detection limit (< 0.01 dpm)";
    String long_name "SD1 Po 210 SPT CONC PUMP M0d14g";
    String nerc_identifier "https://vocab.nerc.ac.uk/collection/P03/current/C035/";
    String units "dpm/100L^-1";
  }
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    Byte _FillValue 127;
    Byte actual_range 1, 1;
    String bcodmo_name "q_flag";
    Float64 colorBarMaximum 150.0;
    Float64 colorBarMinimum 0.0;
    String description "SeaDataNet quality flag code used";
    String long_name "Flag Po 210 SPT CONC PUMP M0d14g";
    String units "unitless";
  }
  Po_210_LPT_CONC_PUMP_mag4or {
    String bcodmo_name "trace_metal_conc";
    String description "Large particulate (>51 um) Po-210 concentration; nd: No data; BDL:Below detection limit (< 0.01 dpm)";
    String long_name "Po 210 LPT CONC PUMP Mag4or";
    String nerc_identifier "https://vocab.nerc.ac.uk/collection/P03/current/C035/";
    String units "dpm/100L^-1";
  }
  SD1_Po_210_LPT_CONC_PUMP_mag4or {
    String bcodmo_name "trace_metal_conc";
    String description "Propagated error from counting statistics, Po-209 spike, blanks";
    String long_name "SD1 Po 210 LPT CONC PUMP Mag4or";
    String nerc_identifier "https://vocab.nerc.ac.uk/collection/P03/current/C035/";
    String units "dpm/100L^-1";
  }
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    Byte _FillValue 127;
    Byte actual_range 1, 1;
    String bcodmo_name "q_flag";
    Float64 colorBarMaximum 150.0;
    Float64 colorBarMinimum 0.0;
    String description "SeaDataNet quality flag code used";
    String long_name "Flag Po 210 LPT CONC PUMP Mag4or";
    String units "unitless";
  }
  Po_210_ICE_D_CONC_CORER_x87y8c {
    Float32 _FillValue NaN;
    Float32 actual_range 1.23, 96.3;
    String bcodmo_name "trace_metal_conc";
    String description "Concentration of dissolved Po-210";
    String long_name "Po 210 ICE D CONC CORER X87y8c";
    String nerc_identifier "https://vocab.nerc.ac.uk/collection/P03/current/C035/";
    String units "dpm/100L^-1";
  }
  SD1_Po_210_ICE_D_CONC_CORER_x87y8c {
    Float32 _FillValue NaN;
    Float32 actual_range 0.1, 3.3;
    String bcodmo_name "trace_metal_conc";
    String description "Propagated error from counting statistics, Po-209 spike, blanks";
    String long_name "SD1 Po 210 ICE D CONC CORER X87y8c";
    String nerc_identifier "https://vocab.nerc.ac.uk/collection/P03/current/C035/";
    String units "dpm/100L^-1";
  }
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    Byte _FillValue 127;
    Byte actual_range 1, 1;
    String bcodmo_name "q_flag";
    Float64 colorBarMaximum 150.0;
    Float64 colorBarMinimum 0.0;
    String description "SeaDataNet quality flag code used";
    String long_name "Flag Po 210 ICE D CONC CORER X87y8c";
    String units "unitless";
  }
  Pb_210_ICE_D_CONC_CORER_x6zzed {
    Float32 _FillValue NaN;
    Float32 actual_range 0.32, 174.0;
    String bcodmo_name "trace_metal_conc";
    String description "Concentration of dissolved Pb-210";
    String long_name "Pb 210 ICE D CONC CORER X6zzed";
    String nerc_identifier "https://vocab.nerc.ac.uk/collection/P03/current/C035/";
    String units "dpm/100L^-1";
  }
  SD1_Pb_210_ICE_D_CONC_CORER_x6zzed {
    Float32 _FillValue NaN;
    Float32 actual_range 0.03, 6.0;
    String bcodmo_name "trace_metal_conc";
    String description "Propagated error from counting statistics, Po-209 spike, blanks";
    String long_name "SD1 Pb 210 ICE D CONC CORER X6zzed";
    String nerc_identifier "https://vocab.nerc.ac.uk/collection/P03/current/C035/";
    String units "dpm/100L^-1";
  }
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    Byte _FillValue 127;
    Byte actual_range 1, 1;
    String bcodmo_name "q_flag";
    Float64 colorBarMaximum 150.0;
    Float64 colorBarMinimum 0.0;
    String description "SeaDataNet quality flag code used";
    String long_name "Flag Pb 210 ICE D CONC CORER X6zzed";
    String units "unitless";
  }
  Po_210_SNOW_D_CONC_GRAB_s66twp {
    Float32 _FillValue NaN;
    Float32 actual_range 3.31, 112.0;
    String bcodmo_name "trace_metal_conc";
    String description "Concentration of dissolved Po-210 in snow";
    String long_name "Po 210 SNOW D CONC GRAB S66twp";
    String nerc_identifier "https://vocab.nerc.ac.uk/collection/P03/current/C035/";
    String units "dpm/100L^-1";
  }
  SD1_Po_210_SNOW_D_CONC_GRAB_s66twp {
    Float32 _FillValue NaN;
    Float32 actual_range 0.12, 3.0;
    String bcodmo_name "trace_metal_conc";
    String description "Propagated error from counting statistics, Po-209 spike, blanks";
    String long_name "SD1 Po 210 SNOW D CONC GRAB S66twp";
    String nerc_identifier "https://vocab.nerc.ac.uk/collection/P03/current/C035/";
    String units "dpm/100L^-1";
  }
  Flag_Po_210_SNOW_D_CONC_GRAB_s66twp {
    Byte _FillValue 127;
    Byte actual_range 1, 1;
    String bcodmo_name "q_flag";
    Float64 colorBarMaximum 150.0;
    Float64 colorBarMinimum 0.0;
    String description "SeaDataNet quality flag code used";
    String long_name "Flag Po 210 SNOW D CONC GRAB S66twp";
    String units "unitless";
  }
  Pb_210_SNOW_D_CONC_GRAB_pyg6ay {
    Int16 _FillValue 32767;
    Int16 actual_range 158, 1394;
    String bcodmo_name "trace_metal_conc";
    String description "Concentration of dissolved Pb-210 in snow";
    String long_name "Pb 210 SNOW D CONC GRAB Pyg6ay";
    String nerc_identifier "https://vocab.nerc.ac.uk/collection/P03/current/C035/";
    String units "dpm/100L^-1";
  }
  SD1_Pb_210_SNOW_D_CONC_GRAB_pyg6ay {
    Byte _FillValue 127;
    Byte actual_range 5, 51;
    String bcodmo_name "trace_metal_conc";
    String description "Propagated error from counting statistics, Po-209 spike, blanks";
    String long_name "SD1 Pb 210 SNOW D CONC GRAB Pyg6ay";
    String nerc_identifier "https://vocab.nerc.ac.uk/collection/P03/current/C035/";
    String units "dpm/100L^-1";
  }
  Flag_Pb_210_SNOW_D_CONC_GRAB_pyg6ay {
    Byte _FillValue 127;
    Byte actual_range 1, 1;
    String bcodmo_name "q_flag";
    Float64 colorBarMaximum 150.0;
    Float64 colorBarMinimum 0.0;
    String description "SeaDataNet quality flag code used";
    String long_name "Flag Pb 210 SNOW D CONC GRAB Pyg6ay";
    String units "unitless";
  }
  Pb_210_ICE_D_CONC_GRAB_daladt {
    Float32 _FillValue NaN;
    Float32 actual_range 3.79, 19.2;
    String bcodmo_name "trace_metal_conc";
    String description "Concentration of dissolved Pb-210 in grab ice sample";
    String long_name "Pb 210 ICE D CONC GRAB Daladt";
    String nerc_identifier "https://vocab.nerc.ac.uk/collection/P03/current/C035/";
    String units "dpm/100L^-1";
  }
  SD1_Pb_210_ICE_D_CONC_GRAB_daladt {
    Float32 _FillValue NaN;
    Float32 actual_range 0.18, 0.7;
    String bcodmo_name "trace_metal_conc";
    String description "Propagated error from counting statistics, Po-209 spike, blanks";
    String long_name "SD1 Pb 210 ICE D CONC GRAB Daladt";
    String nerc_identifier "https://vocab.nerc.ac.uk/collection/P03/current/C035/";
    String units "dpm/100L^-1";
  }
  Flag_Pb_210_ICE_D_CONC_GRAB_daladt {
    Byte _FillValue 127;
    Byte actual_range 1, 1;
    String bcodmo_name "q_flag";
    Float64 colorBarMaximum 150.0;
    Float64 colorBarMinimum 0.0;
    String description "SeaDataNet quality flag code used";
    String long_name "Flag Pb 210 ICE D CONC GRAB Daladt";
    String units "unitless";
  }
  Po_210_ICE_D_CONC_GRAB_apyjov {
    Float32 _FillValue NaN;
    Float32 actual_range 0.61, 9.89;
    String bcodmo_name "trace_metal_conc";
    String description "Concentration of dissolved Po-210 in grab ice sample";
    String long_name "Po 210 ICE D CONC GRAB Apyjov";
    String nerc_identifier "https://vocab.nerc.ac.uk/collection/P03/current/C035/";
    String units "dpm/100L^-1";
  }
  SD1_Po_210_ICE_D_CONC_GRAB_apyjov {
    Float32 _FillValue NaN;
    Float32 actual_range 0.1, 0.45;
    String bcodmo_name "trace_metal_conc";
    String description "Propagated error from counting statistics, Po-209 spike, blanks";
    String long_name "SD1 Po 210 ICE D CONC GRAB Apyjov";
    String nerc_identifier "https://vocab.nerc.ac.uk/collection/P03/current/C035/";
    String units "dpm/100L^-1";
  }
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    Byte _FillValue 127;
    Byte actual_range 1, 1;
    String bcodmo_name "q_flag";
    Float64 colorBarMaximum 150.0;
    Float64 colorBarMinimum 0.0;
    String description "SeaDataNet quality flag code used";
    String long_name "Flag Po 210 ICE D CONC GRAB Apyjov";
    String units "unitless";
  }
 }
  NC_GLOBAL {
    String access_formats ".htmlTable,.csv,.json,.mat,.nc,.tsv,.esriCsv,.geoJson,.odvTxt";
    String acquisition_description 
"Sampling and analytical procedures:  
 The chemical procedure for the analysis of Po-210 and Pb-210 in aerosols,
water samples, snow, ice core, melt ponds and ice-rafted sediments are given
in Sampling and Sample-handling Protocols for GEORACES Cruises (known as
\\\"Cookbook\\\"): [http://geotraces.org/science/intercalibration/222-sampling-
and-sample-handling-protocols-for-geotraces-
cruises](\\\\\"http://geotraces.org/science/intercalibration/222-sampling-and-
sample-handling-protocols-for-geotraces-cruises\\\\\"); Baskaran et al., 2013).
 
Samples for Po-210/Pb-210 analysis were collected from 4 super stations, 3
shelf stations, 1 full station, 1 pacific end member station, 6 ice stations,
2 dirty ice events, and from 14 aerosol deployments. The number of water
samples ranged from 16-24 depths for super stations and 3-6 depths for
shelf/end member stations. These samples were collected from the ODF rosette
and filtered using 0.2um Acropack filters. Two additional filtered water
samples were taken from 8L niskins attached atop the multicorer instrument at
two separate shelf stations. Four unfiltered water samples were collected for
intercalibration between the Wayne State University and Louisiana State
Laboratory (collected from 1 full station and 1 super station (original GT
15)). The particulate samples collected by McLane pumps for associated
dissolved water samples will be sent to the participating labs for analysis
upon completion of the cruise. Samples collected at ice stations included
snow, melt pond water, under ice water, and ice cores. All samples were
collected unfiltered and subsequently filtered in the onboard lab for analysis
of both particulate and dissolved phases. The 2 dirty ice events were
conducted between stations using a man basket and each event included a
community sample which was divided among other groups. Aerosol deployments
were conducted every three or four days, depending on the total run time of
the pumps. Dissolved water samples from the shelf stations and 2 of the 4
super stations (original GT13, 15) were acidified and stored for shipment to
Dr. Maiti's laboratory where they will be processed. All of the remaining
samples were processed onboard by Wayne State personal (Katie Krupp).
Dissolved seawater/melted ice station samples were processed by co-
precipitation using an iron carrier followed by electroplating to silver
planchets. Particle samples and aerosols were leached with acids and plated in
the same manner. A known amount of Po-209 spike was added to each sample for
determination of Po-210 recovery. These planchets and sample solutions were
brought back to Wayne State University for alpha counting and further
processing in order to measure Pb-210 and thus determine the Po-210/Pb-210
ratio for each sample collected. In summary, approximately 310 samples were
collected for polonium- 210 and lead-210 analysis on the 2015 Arctic GEOTRACES
cruise.
 
Meltpond sampling:  
 Melt ponds were sampled at Stations 33, 38, 42, 43 and 46. A battery-powered
peristaltic pump and silicone tubing were used to fill a carboy for shipboard
filtration (Acropak-200, <0.2 um). At each station, the melt ponds were frozen
over, so a hole was drilled using the TM-clean corer. Salinity was measured at
each melt pond following sampling.
 
Aerosol sampling:  
 Aerosol samples were collected over periods of three to five days using five
high-volume aerosol  
 samplers. Three samplers were used to collect aerosols on acid-cleaned
Whatman-41 (cellulose) filters for analysis of inorganic trace elements and
isotopes (TEIs).
 
Sea Ice operations:  
 Snow, ice cores and water under the ice was collected from the six sea ice
stations (Table 1).  
 Ice stations were constricted north of 88.4o N on the northward leg, and
north of 82.5o N on the southward leg of the cruise. This narrow latitudinal
range resulted from a combination of ice conditions, weather conditions, and
available time.
 
Ice Station Longitude Latitude (samples include snow, ice core, melt ponds and
ice-rafted sediment)  
 Station 31: 183.33W 88.42N  
 Station 33: 3.529E 89.96N  
 Station 39: 149.61W 87.78N  
 Station 42: 150.54W 85.74N  
 Station 43: 150.00W 85.16N  
 Station 46: 149.83W 82.49N
 
Bulk Snow:  
 Bulk snow for Po-210 and Pb-210 was collected with an acid clean high
density polyethylene shovel into a low density polyethylene drum liner.
Discrete snow samples were also collected in community provided containers.
The bulk snow was melted on board, filtered through a Supor 0.2 um filter
membrane and subsampled.
 
Sea Ice Cores:  
 Discrete ice cores were collected at all stations. Cores were collected with
the Kovaks corer. A total of two Twelve to fifteen cores were taken at each
station for a total of 85 sea ice community cores.
 
Problem report:  
 We had analyzed a total of 43 water samples, 43 small particle size and 43
large particle size. Out of these, two batches (3 dissolved and 4 particulate
(both large and small)) were lost during analysis onboard.";
    String awards_0_award_nid "787542";
    String awards_0_award_number "PLR-1434578";
    String awards_0_data_url "http://www.nsf.gov/awardsearch/showAward.do?AwardNumber=1434578";
    String awards_0_funder_name "NSF Division of Polar Programs";
    String awards_0_funding_acronym "NSF PLR";
    String awards_0_funding_source_nid "490497";
    String awards_0_program_manager "Cynthia Suchman";
    String awards_0_program_manager_nid "779315";
    String cdm_data_type "Other";
    String comment 
"Po-210 and Pb-210 Western Arctic GEOTRACES data 
  PI: Mark Baskaran (Wayne State University) 
  Version date: 2020-02-25";
    String Conventions "COARDS, CF-1.6, ACDD-1.3";
    String creator_email "info@bco-dmo.org";
    String creator_name "BCO-DMO";
    String creator_type "institution";
    String creator_url "https://www.bco-dmo.org/";
    String data_source "extract_data_as_tsv version 2.3  19 Dec 2019";
    String date_created "2020-02-24T16:40:08Z";
    String date_modified "2020-03-03T15:46:16Z";
    String defaultDataQuery "&amp;time&lt;now";
    String doi "10.1575/1912/bco-dmo.794064.1";
    Float64 Easternmost_Easting 176.761;
    Float64 geospatial_lat_max 91.625;
    Float64 geospatial_lat_min 56.074;
    String geospatial_lat_units "degrees_north";
    Float64 geospatial_lon_max 176.761;
    Float64 geospatial_lon_min -184.104;
    String geospatial_lon_units "degrees_east";
    Float64 geospatial_vertical_max 3925.0;
    Float64 geospatial_vertical_min 3.0;
    String geospatial_vertical_positive "down";
    String geospatial_vertical_units "m";
    String history 
"2020-08-06T02:01:23Z (local files)
2020-08-06T02:01:23Z https://erddap.bco-dmo.org/erddap/tabledap/bcodmo_dataset_794064.html";
    String infoUrl "https://www.bco-dmo.org/dataset/794064";
    String institution "BCO-DMO";
    String instruments_0_acronym "Niskin bottle";
    String instruments_0_dataset_instrument_nid "794090";
    String instruments_0_description "A Niskin bottle (a next generation water sampler based on the Nansen bottle) is a cylindrical, non-metallic water collection device with stoppers at both ends.  The bottles can be attached individually on a hydrowire or deployed in 12, 24 or 36 bottle Rosette systems mounted on a frame and combined with a CTD.  Niskin bottles are used to collect discrete water samples for a range of measurements including pigments, nutrients, plankton, etc.";
    String instruments_0_instrument_external_identifier "https://vocab.nerc.ac.uk/collection/L22/current/TOOL0412/";
    String instruments_0_instrument_name "Niskin bottle";
    String instruments_0_instrument_nid "413";
    String instruments_1_acronym "Ice Corer";
    String instruments_1_dataset_instrument_nid "794097";
    String instruments_1_description "An ice corer is used to drill into deep ice and remove long cylinders of ice from which information about the past and present can be inferred. Polar ice cores contain a record of the past atmosphere - temperature, precipitation, gas content, chemical composition, and other properties. This can reveal a broad spectrum of information on past environmental, and particularly climatic, changes. They can also be used to study bacteria and chlorophyll production in the waters from which the ice core was extracted.";
    String instruments_1_instrument_external_identifier "https://vocab.nerc.ac.uk/collection/L05/current/56/";
    String instruments_1_instrument_name "Ice Corer";
    String instruments_1_instrument_nid "462";
    String instruments_1_supplied_name "TM-clean corer and Kovaks corer";
    String instruments_2_acronym "CTD SBE 911plus";
    String instruments_2_dataset_instrument_nid "794089";
    String instruments_2_description "The Sea-Bird SBE 911plus is a type of CTD instrument package for continuous measurement of conductivity, temperature and pressure.  The SBE 911plus includes the SBE 9plus Underwater Unit and the SBE 11plus Deck Unit (for real-time readout using conductive wire) for deployment from a vessel. The combination of the SBE 9plus and SBE 11plus is called a SBE 911plus.  The SBE 9plus uses Sea-Bird's standard modular temperature and conductivity sensors (SBE 3plus and SBE 4). The SBE 9plus CTD can be configured with up to eight auxiliary sensors to measure other parameters including dissolved oxygen, pH, turbidity, fluorescence, light (PAR), light transmission, etc.). more information from Sea-Bird Electronics";
    String instruments_2_instrument_external_identifier "https://vocab.nerc.ac.uk/collection/L22/current/TOOL0058/";
    String instruments_2_instrument_name "CTD Sea-Bird SBE 911plus";
    String instruments_2_instrument_nid "591";
    String instruments_2_supplied_name "ODF Rosette";
    String instruments_3_acronym "McLane Pump";
    String instruments_3_dataset_instrument_nid "794092";
    String instruments_3_description "McLane pumps sample large volumes of seawater at depth. They are attached to a wire and lowered to different depths in the ocean. As the water is pumped through the filter, particles suspended in the ocean are collected on the filters. The pumps are then retrieved and the contents of the filters are analyzed in a lab.";
    String instruments_3_instrument_name "McLane Pump";
    String instruments_3_instrument_nid "627";
    String instruments_3_supplied_name "McLane pumps";
    String instruments_4_acronym "Spectrometer";
    String instruments_4_dataset_instrument_nid "794098";
    String instruments_4_description "A spectrometer is an optical instrument used to measure properties of light over a specific portion of the electromagnetic spectrum.";
    String instruments_4_instrument_external_identifier "https://vocab.nerc.ac.uk/collection/L22/current/TOOL0460/";
    String instruments_4_instrument_name "Spectrometer";
    String instruments_4_instrument_nid "667";
    String instruments_4_supplied_name "alpha spectrometer";
    String instruments_5_acronym "Aerosol_Sampler";
    String instruments_5_dataset_instrument_nid "794094";
    String instruments_5_description "A device that collects a sample of aerosol (dry particles or liquid droplets) from the atmosphere.";
    String instruments_5_instrument_external_identifier "https://vocab.nerc.ac.uk/collection/L05/current/13/";
    String instruments_5_instrument_name "Aerosol Sampler";
    String instruments_5_instrument_nid "691";
    String instruments_5_supplied_name "high-volume aerosol samplers";
    String instruments_6_dataset_instrument_nid "794096";
    String instruments_6_description "A pump is a device that moves fluids (liquids or gases), or sometimes slurries, by mechanical action. Pumps can be classified into three major groups according to the method they use to move the fluid: direct lift, displacement, and gravity pumps";
    String instruments_6_instrument_name "Pump";
    String instruments_6_instrument_nid "726";
    String instruments_6_supplied_name "battery-powered peristaltic pump";
    String keywords "7io704, apdd2j, apyjov, bco, bco-dmo, biological, bottle, chemical, conc, corer, daladt, data, data_type, dataset, date, depth, dmo, end, End_Date_UTC, End_Latitude, End_Longitude, End_Time_UTC, erddap, event, Event_ID, f0nzql, flag, Flag_Pb_210_A_T_CONC_HIVOL_7io704, Flag_Pb_210_D_CONC_BOTTLE_ib2fhj, Flag_Pb_210_D_CONC_MELTPOND_PUMP_l1tcik, Flag_Pb_210_ICE_D_CONC_CORER_x6zzed, Flag_Pb_210_ICE_D_CONC_GRAB_daladt, Flag_Pb_210_LPT_CONC_PUMP_apdd2j, Flag_Pb_210_SNOW_D_CONC_GRAB_pyg6ay, Flag_Pb_210_SPT_CONC_PUMP_v4orif, Flag_Po_210_A_T_CONC_HIVOL_th4b6v, Flag_Po_210_D_CONC_BOTTLE_f0nzql, Flag_Po_210_D_CONC_MELTPOND_PUMP_jltiiz, Flag_Po_210_ICE_D_CONC_CORER_x87y8c, Flag_Po_210_ICE_D_CONC_GRAB_apyjov, Flag_Po_210_LPT_CONC_PUMP_mag4or, Flag_Po_210_SNOW_D_CONC_GRAB_s66twp, Flag_Po_210_SPT_CONC_PUMP_m0d14g, grab, hivol, ib2fhj, ice, iso, ISO_DateTime_UTC_End, ISO_DateTime_UTC_Start, jltiiz, l1tcik, latitude, longitude, lpt, m0d14g, mag4or, management, meltpond, oceanography, office, Pb_210_A_T_CONC_HIVOL_7io704, Pb_210_D_CONC_BOTTLE_ib2fhj, Pb_210_D_CONC_MELTPOND_PUMP_l1tcik, Pb_210_ICE_D_CONC_CORER_x6zzed, Pb_210_ICE_D_CONC_GRAB_daladt, Pb_210_LPT_CONC_PUMP_apdd2j, Pb_210_SNOW_D_CONC_GRAB_pyg6ay, Pb_210_SPT_CONC_PUMP_v4orif, Po_210_A_T_CONC_HIVOL_th4b6v, Po_210_D_CONC_BOTTLE_f0nzql, Po_210_D_CONC_MELTPOND_PUMP_jltiiz, Po_210_ICE_D_CONC_CORER_x87y8c, Po_210_ICE_D_CONC_GRAB_apyjov, Po_210_LPT_CONC_PUMP_mag4or, Po_210_SNOW_D_CONC_GRAB_s66twp, Po_210_SPT_CONC_PUMP_m0d14g, preliminary, pump, pyg6ay, s66twp, sample, Sample_Depth, Sample_ID, sd1, SD1_Pb_210_A_T_CONC_HIVOL_7io704, SD1_Pb_210_D_CONC_BOTTLE_ib2fhj, SD1_Pb_210_D_CONC_MELTPOND_PUMP_l1tcik, SD1_Pb_210_ICE_D_CONC_CORER_x6zzed, SD1_Pb_210_ICE_D_CONC_GRAB_daladt, SD1_Pb_210_LPT_CONC_PUMP_apdd2j, SD1_Pb_210_SNOW_D_CONC_GRAB_pyg6ay, SD1_Pb_210_SPT_CONC_PUMP_v4orif, SD1_Po_210_A_T_CONC_HIVOL_th4b6v, SD1_Po_210_D_CONC_BOTTLE_f0nzql, SD1_Po_210_D_CONC_MELTPOND_PUMP_jltiiz, SD1_Po_210_ICE_D_CONC_CORER_x87y8c, SD1_Po_210_ICE_D_CONC_GRAB_apyjov, SD1_Po_210_LPT_CONC_PUMP_mag4or, SD1_Po_210_SNOW_D_CONC_GRAB_s66twp, SD1_Po_210_SPT_CONC_PUMP_m0d14g, snow, spt, start, Start_Date_UTC, Start_Time_UTC, station, Station_ID, th4b6v, time, type, v4orif, x6zzed, x87y8c";
    String license "https://www.bco-dmo.org/dataset/794064/license";
    String metadata_source "https://www.bco-dmo.org/api/dataset/794064";
    Float64 Northernmost_Northing 91.625;
    String param_mapping "{'794064': {'Start_Longitude': 'flag - longitude', 'Sample_Depth': 'flag - depth', 'ISO_DateTime_UTC_Start': 'flag - time', 'Start_Latitude': 'flag - latitude'}}";
    String parameter_source "https://www.bco-dmo.org/mapserver/dataset/794064/parameters";
    String people_0_affiliation "Wayne State University";
    String people_0_affiliation_acronym "WSU";
    String people_0_person_name "Mark Baskaran";
    String people_0_person_nid "51673";
    String people_0_role "Principal Investigator";
    String people_0_role_type "originator";
    String people_1_affiliation "Wayne State University";
    String people_1_affiliation_acronym "WSU";
    String people_1_person_name "Katherine Krupp";
    String people_1_person_nid "794316";
    String people_1_role "Scientist";
    String people_1_role_type "originator";
    String people_2_affiliation "Woods Hole Oceanographic Institution";
    String people_2_affiliation_acronym "WHOI BCO-DMO";
    String people_2_person_name "Shannon Rauch";
    String people_2_person_nid "51498";
    String people_2_role "BCO-DMO Data Manager";
    String people_2_role_type "related";
    String project "U.S. GEOTRACES Arctic,GEOTRACES Arctic 210Po and 210Pb";
    String projects_0_acronym "U.S. GEOTRACES Arctic";
    String projects_0_description 
"Description from NSF award abstract:
In pursuit of its goal \"to identify processes and quantify fluxes that control the distributions of key trace elements and isotopes in the ocean, and to establish the sensitivity of these distributions to changing environmental conditions\", in 2015 the International GEOTRACES Program will embark on several years of research in the Arctic Ocean. In a region where climate warming and general environmental change are occurring at amazing speed, research such as this is important for understanding the current state of Arctic Ocean geochemistry and for developing predictive capability as the regional ecosystem continues to warm and influence global oceanic and climatic conditions. The three investigators funded on this award, will manage a large team of U.S.scientists who will compete through the regular NSF proposal process to contribute their own unique expertise in marine trace metal, isotopic, and carbon cycle geochemistry to the U.S. effort. The three managers will be responsible for arranging and overseeing at-sea technical services such as hydrographic measurements, nutrient analyses, and around-the-clock management of on-deck sampling activites upon which all participants depend, and for organizing all pre- and post-cruise technical support and scientific meetings. The management team will also lead educational outreach activities for the general public in Nome and Barrow, Alaska, to explain the significance of the study to these communities and to learn from residents' insights on observed changes in the marine system. The project itself will provide for the support and training of a number of pre-doctoral students and post-doctoral researchers. Inasmuch as the Arctic Ocean is an epicenter of global climate change, findings of this study are expected to advance present capability to forecast changes in regional and globlal ecosystem and climate system functioning.
As the United States' contribution to the International GEOTRACES Arctic Ocean initiative, this project will be part of an ongoing multi-national effort to further scientific knowledge about trace elements and isotopes in the world ocean. This U.S. expedition will focus on the western Arctic Ocean in the boreal summer of 2015. The scientific team will consist of the management team funded through this award plus a team of scientists from U.S. academic institutions who will have successfully competed for and received NSF funds for specific science projects in time to participate in the final stages of cruise planning. The cruise track segments will include the Bering Strait, Chukchi shelf, and the deep Canada Basin. Several stations will be designated as so-called super stations for intense study of atmospheric aerosols, sea ice, and sediment chemistry as well as water-column processes. In total, the set of coordinated international expeditions will involve the deployment of ice-capable research ships from 6 nations (US, Canada, Germany, Sweden, UK, and Russia) across different parts of the Arctic Ocean, and application of state-of-the-art methods to unravel the complex dynamics of trace metals and isotopes that are important as oceanographic and biogeochemical tracers in the sea.";
    String projects_0_end_date "2017-06";
    String projects_0_geolocation "Arctic Ocean; Sailing from Dutch Harbor to Dutch Harbor";
    String projects_0_name "U.S. Arctic GEOTRACES Study";
    String projects_0_project_nid "638812";
    String projects_0_start_date "2014-07";
    String projects_1_acronym "GEOTRACES Arctic 210Po and 210Pb";
    String projects_1_description 
"NSF Award Abstract:
In this project, a team of investigators participating in the 2015 U.S. Arctic GEOTRACES expedition will study the distribution of the naturally-occurring radioactive isotopes lead-210 and polonium-210 in the western and central Arctic Ocean. These measurements are expected to be very useful in helping to meet the goals of the U.S. Arctic GEOTRACES expedition: namely, to identify processes and quantify fluxes that control the distributions of key trace elements and isotopes (TEIs) in the ocean, and to establish the sensitivity of these distributions to changing environmental conditions. Some trace elements are essential to life, others are known biological toxins, and still others are important because they can be used as tracers of a variety of physical, chemical, and biological processes in the sea. A primary source of lead-210 to the oceans is from the atmosphere, where it is produced from the decay of radon-222. In the oceans, it decays to polonium-210. The half-lives of polonium-210 (138 days) and lead-210 (22.3 years) provide \"natural clocks\" with which to investigate processes such as the sorption of elements on to sinking particles, and the transport of elements between the ocean margins and deep basins.
The lead investigator proposes to concentrate sampling and investigate processes at three \"interfaces:\" the air-sea-ice interface at the surface, the interface between biologically produced particles and water, and the interface between non-biological particles and water. The investigator proposes the following three hypotheses: 1) At the air-sea interface, the polonium-210/lead-210 ratios can be used to \"age date\" the sea ice (and sediments contained within the ice). 2) At the biotic-water interface, different biogenic particle types encountered in the upper waters will affect the fractionation and remineralization depths of polonium-210 and lead-210. 3) At the particle-water interface, layers of resuspended sediments in the water column will be zones of enhanced polonium and lead scavenging from the surrounding waters. These processes are important for understanding the distributions of other key particle-reactive trace elements such as iron, lead, and manganese. To test these hypotheses, the investigator will sample and analyze about four hundred dissolved and particulate (large and small) samples, 10 multi-year ice cores, ice-rafted sediments, and water from melt ponds for polonium-210 and lead-210 along the GEOTRACES Western Arctic section. About half of the samples will be focused at the four designated \"super stations\", with half of these in the highly dynamic upper water column and the other half near the sea floor where resuspension of bottom sediments can affect element cycling. The depths will be chosen according to regional atmospheric input, ecosystems, and coordinated sampling with groups measuring other trace elements and isotopes. The remainder of the samples will be ice cores, water from melt ponds, ice-rafted sediments in sea ice, and atmospheric aerosol samples. The proposed work will be closely coordinated with other GEOTRACES. The broader impacts are closely linked to the GEOTRACES program as a whole to enhance (1) research infrastructure by providing a broad array of polonium-210 and lead-210 data useful for biogeochemical scavenging models, (2) education by mentoring graduate and undergraduates, teaching by example
from proposed research, (3) participation of under-represented students careers in the geosciences, (4) research training of graduates in marine radiochemistry, and 5) broad dissemination of results through publications, presentations, and on dedicated public Wayne State University websites (www.clas.wayne.edu) and at GEOTRACES (www.geotraces.org).";
    String projects_1_end_date "2019-09";
    String projects_1_geolocation "170E-140W; 54N-90N";
    String projects_1_name "GEOTRACES Arctic section: Application of 210Po and 210Pb distribution at contrasting interface regimes of Western Arctic";
    String projects_1_project_nid "787543";
    String projects_1_start_date "2014-10";
    String publisher_name "Biological and Chemical Oceanographic Data Management Office (BCO-DMO)";
    String publisher_type "institution";
    String sourceUrl "(local files)";
    Float64 Southernmost_Northing 56.074;
    String standard_name_vocabulary "CF Standard Name Table v55";
    String summary "Particulate & dissolved Po-210 & Pb-210 in seawater, snow, melt ponds, ice core, ice-rafted sediments, and aerosols from the US GEOTRACES Arctic cruise (HLY1502) on USCGC Healy from August to October 2015.";
    String time_coverage_start "2015-08-10T17:53:00Z";
    String title "Particulate & dissolved Po-210 & Pb-210 in seawater, snow, melt ponds, ice core, ice-rafted sediments, and aerosols from the US GEOTRACES Arctic cruise (HLY1502) on USCGC Healy from August to October 2015";
    String version "1";
    Float64 Westernmost_Easting -184.104;
    String xml_source "osprey2erddap.update_xml() v1.3";
  }
}

 

Using tabledap to Request Data and Graphs from Tabular Datasets

tabledap lets you request a data subset, a graph, or a map from a tabular dataset (for example, buoy data), via a specially formed URL. tabledap uses the OPeNDAP (external link) Data Access Protocol (DAP) (external link) and its selection constraints (external link).

The URL specifies what you want: the dataset, a description of the graph or the subset of the data, and the file type for the response.

Tabledap request URLs must be in the form
https://coastwatch.pfeg.noaa.gov/erddap/tabledap/datasetID.fileType{?query}
For example,
https://coastwatch.pfeg.noaa.gov/erddap/tabledap/pmelTaoDySst.htmlTable?longitude,latitude,time,station,wmo_platform_code,T_25&time>=2015-05-23T12:00:00Z&time<=2015-05-31T12:00:00Z
Thus, the query is often a comma-separated list of desired variable names, followed by a collection of constraints (e.g., variable<value), each preceded by '&' (which is interpreted as "AND").

For details, see the tabledap Documentation.


 
ERDDAP, Version 2.02
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