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Dataset Title:  Acetic acid leachable trace metals from bulk aerosol samples collected during
the US GEOTRACES EPZT section cruise (R/V Thomas G. Thompson TN303) in the
Eastern Tropical Pacific from October to December 2013
  RSS
Institution:  BCO-DMO   (Dataset ID: bcodmo_dataset_709276)
Information:  Summary ? | License ? | ISO 19115 | Metadata | Background (external link) | Subset | Files | Make a graph
 
Variable ?   Optional
Constraint #1 ?
Optional
Constraint #2 ?
   Minimum ?
   or a List of Values ?
   Maximum ?
 
 cruise_id (unitless) ?      
   - +  ?
 GEOTRC_INSTR (unitless) ?      
   - +  ?
 GEOTRC_SAMPNO (unitless) ?          2131    10388
 STNNBR (unitless) ?          1    36
 GEOTRC_EVENTNO (unitless) ?          4017    4468
 julian_day (unitless) ?          299    347
 day_start (unitless) ?              
 month_start (unitless) ?          10    12
 year_start (unitless) ?      
   - +  ?
 time_start_utc (unitless) ?              
 ISO_DateTime_UTC_start (unitless) ?              
 latitude (degrees_north) ?          -16.0003    -4.0701
  < slider >
 longitude (degrees_east) ?          -142.9501    -77.657
  < slider >
 day_end (unitless) ?              
 month_end (unitless) ?          10    12
 year_end (unitless) ?      
   - +  ?
 time_end_utc (unitless) ?              
 time (ISO Date Time UTC End, UTC) ?          2013-10-29T14:41:00Z    2013-12-16T22:27:00Z
  < slider >
 lat_end (Latitude, decimal degrees) ?          -16.0003    -10.5002
 lon_end (Longitude, decimal degrees) ?          -152.0003    -77.657
 air_vol_total (cubic meters (m3)) ?          164.7    342.4
 Al_HAc_L_Avg_Aerosol (nanograms per cubic meter (ng/m3)) ?          0.47    10.19
 Al_HAc_L_Var_Aerosol (nanograms per cubic meter (ng/m3)) ?          0.05    1.31
 Al_HAc_L_QF_Aerosol (unitless) ?          1    9
 Ti_HAc_L_Avg_Aerosol (nanograms per cubic meter (ng/m3)) ?          0.223    0.944
 Ti_HAc_L_Var_Aerosol (nanograms per cubic meter (ng/m3)) ?          0.002    0.106
 Ti_HAc_L_QF_Aerosol (unitless) ?          1    9
 V_HAc_L_Avg_Aerosol (nanograms per cubic meter (ng/m3)) ?          0.0022    0.647
 V_HAc_L_Var_Aerosol (nanograms per cubic meter (ng/m3)) ?          0.0    0.059
 V_HAc_L_QF_Aerosol (unitless) ?          1    9
 Mn_HAc_L_Avg_Aerosol (nanograms per cubic meter (ng/m3)) ?          0.0058    1.086
 Mn_HAc_L_Var_Aerosol (nanograms per cubic meter (ng/m3)) ?          5.0E-4    0.129
 Mn_HAc_L_QF_Aerosol (unitless) ?          1    9
 Fe_HAc_L_Avg_Aerosol (nanograms per cubic meter (ng/m3)) ?          0.22    10.8
 Fe_HAc_L_Var_Aerosol (nanograms per cubic meter (ng/m3)) ?          0.03    1.1
 Fe_HAc_L_QF_Aerosol (unitless) ?          1    9
 Cu_HAc_L_Avg_Aerosol (nanograms per cubic meter (ng/m3)) ?          0.015    1.155
 Cu_HAc_L_Var_Aerosol (nanograms per cubic meter (ng/m3)) ?          0.0    0.131
 Cu_HAc_L_QF_Aerosol (unitless) ?          1    9
 Cd_HAc_L_Avg_Aerosol (nanograms per cubic meter (ng/m3)) ?          0.0    0.068
 Cd_HAc_L_Var_Aerosol (nanograms per cubic meter (ng/m3)) ?          3.0E-4    0.011
 Cd_HAc_L_QF_Aerosol (unitless) ?          1    9
 Pb_HAc_L_Avg_Aerosol (nanograms per cubic meter (ng/m3)) ?          0.0    0.608
 Pb_HAc_L_Var_Aerosol (nanograms per cubic meter (ng/m3)) ?          0.019    0.069
 Pb_HAc_L_QF_Aerosol (unitless) ?          1    9
 
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The Dataset Attribute Structure (.das) for this Dataset

Attributes {
 s {
  cruise_id {
    String description "Cruise identification";
    String ioos_category "Identifier";
    String long_name "Cruise Id";
    String units "unitless";
  }
  GEOTRC_INSTR {
    String description "Sampling instrument; added from BCO-DMO EPZT master event file.";
    String ioos_category "Unknown";
    String long_name "GEOTRC INSTR";
    String units "unitless";
  }
  GEOTRC_SAMPNO {
    Int16 _FillValue 32767;
    Int16 actual_range 2131, 10388;
    String description "Unique GEOTRACES sample number";
    String ioos_category "Unknown";
    String long_name "GEOTRC SAMPNO";
    String units "unitless";
  }
  STNNBR {
    Byte _FillValue 127;
    Byte actual_range 1, 36;
    String description "Station number; added from BCO-DMO EPZT master event file.";
    String ioos_category "Unknown";
    String long_name "STNNBR";
    String units "unitless";
  }
  GEOTRC_EVENTNO {
    Int16 _FillValue 32767;
    Int16 actual_range 4017, 4468;
    String description "GEOTRACES event number; added from BCO-DMO EPZT master event file.";
    String ioos_category "Unknown";
    String long_name "GEOTRC EVENTNO";
    String units "unitless";
  }
  julian_day {
    Int16 _FillValue 32767;
    Int16 actual_range 299, 347;
    String description "Sampling start Julian day";
    String ioos_category "Time";
    String long_name "Julian Day";
    String units "unitless";
  }
  day_start {
    String description "Sampling start day";
    String ioos_category "Time";
    String long_name "Day Start";
    String units "unitless";
  }
  month_start {
    Byte _FillValue 127;
    Byte actual_range 10, 12;
    String description "Sampling start month";
    String ioos_category "Time";
    String long_name "Month Start";
    String units "unitless";
  }
  year_start {
    Int16 _FillValue 32767;
    Int16 actual_range 2013, 2013;
    String description "Sampling start year";
    String ioos_category "Time";
    String long_name "Year Start";
    String units "unitless";
  }
  time_start_utc {
    String description "Sampling start time";
    String ioos_category "Time";
    String long_name "Time Start Utc";
    String units "unitless";
  }
  ISO_DateTime_UTC_start {
    String description "Start date and time formatted to ISO 8601 standard; format: YYYY-mm-ddTHH:MM:SS.xxZ";
    String ioos_category "Time";
    String long_name "ISO Date Time UTC Start";
    String source_name "ISO_DateTime_UTC_start";
    String units "unitless";
  }
  latitude {
    String _CoordinateAxisType "Lat";
    Float64 _FillValue NaN;
    Float64 actual_range -16.0003, -4.0701;
    String axis "Y";
    Float64 colorBarMaximum 90.0;
    Float64 colorBarMinimum -90.0;
    String description "Sampling start Latitude (decimal degrees)";
    String ioos_category "Location";
    String long_name "Latitude";
    String source_name "lat_start";
    String standard_name "latitude";
    String units "degrees_north";
  }
  longitude {
    String _CoordinateAxisType "Lon";
    Float64 _FillValue NaN;
    Float64 actual_range -142.9501, -77.657;
    String axis "X";
    Float64 colorBarMaximum 180.0;
    Float64 colorBarMinimum -180.0;
    String description "Sampling start Longitude (decimal degrees)";
    String ioos_category "Location";
    String long_name "Longitude";
    String source_name "lon_start";
    String standard_name "longitude";
    String units "degrees_east";
  }
  day_end {
    String description "Sampling end day";
    String ioos_category "Time";
    String long_name "Day End";
    String units "unitless";
  }
  month_end {
    Byte _FillValue 127;
    Byte actual_range 10, 12;
    String description "Sampling end month";
    String ioos_category "Time";
    String long_name "Month End";
    String units "unitless";
  }
  year_end {
    Int16 _FillValue 32767;
    Int16 actual_range 2013, 2013;
    String description "Sampling end year";
    String ioos_category "Time";
    String long_name "Year End";
    String units "unitless";
  }
  time_end_utc {
    String description "Sampling end time";
    String ioos_category "Time";
    String long_name "Time End Utc";
    String units "unitless";
  }
  time {
    String _CoordinateAxisType "Time";
    Float64 actual_range 1.38305766e+9, 1.38723282e+9;
    String axis "T";
    String description "End date and time formatted to ISO 8601 standard; format: YYYY-mm-ddTHH:MM:SS.xxZ";
    String ioos_category "Time";
    String long_name "ISO Date Time UTC End";
    String standard_name "time";
    String time_origin "01-JAN-1970 00:00:00";
    String units "seconds since 1970-01-01T00:00:00Z";
  }
  lat_end {
    Float32 _FillValue NaN;
    Float32 actual_range -16.0003, -10.5002;
    Float64 colorBarMaximum 90.0;
    Float64 colorBarMinimum -90.0;
    String description "Sampling end Latitude (decimal degrees)";
    String ioos_category "Location";
    String long_name "Latitude";
    String standard_name "latitude";
    String units "decimal degrees";
  }
  lon_end {
    Float32 _FillValue NaN;
    Float32 actual_range -152.0003, -77.657;
    Float64 colorBarMaximum 180.0;
    Float64 colorBarMinimum -180.0;
    String description "Sampling end Longitude (decimal degrees)";
    String ioos_category "Location";
    String long_name "Longitude";
    String standard_name "longitude";
    String units "decimal degrees";
  }
  air_vol_total {
    Float32 _FillValue NaN;
    Float32 actual_range 164.7, 342.4;
    String description "Total volume of air sampled";
    String ioos_category "Unknown";
    String long_name "Air Vol Total";
    String units "cubic meters (m3)";
  }
  Al_HAc_L_Avg_Aerosol {
    Float32 _FillValue NaN;
    Float32 actual_range 0.47, 10.19;
    String description "Acetic Acid Leachable particulate aerosol Al concentration, average of 3 replicates. Detection limit = 0.19 ng/m3.";
    String ioos_category "Optical Properties";
    String long_name "Al HAc L Avg Aerosol";
    String units "nanograms per cubic meter (ng/m3)";
  }
  Al_HAc_L_Var_Aerosol {
    Float32 _FillValue NaN;
    Float32 actual_range 0.05, 1.31;
    String description "Acetic Acid Leachable particulate aerosol Al concentration, variance";
    String ioos_category "Optical Properties";
    String long_name "Al HAc L Var Aerosol";
    String units "nanograms per cubic meter (ng/m3)";
  }
  Al_HAc_L_QF_Aerosol {
    Byte _FillValue 127;
    Byte actual_range 1, 9;
    String description "Acetic Acid Leachable particulate aerosol Al concentration, data quality flag";
    String ioos_category "Optical Properties";
    String long_name "Al HAc L QF Aerosol";
    String units "unitless";
  }
  Ti_HAc_L_Avg_Aerosol {
    Float32 _FillValue NaN;
    Float32 actual_range 0.223, 0.944;
    String description "Acetic Acid Leachable particulate aerosol Ti concentration, average of 3 replicates. Detection limit = 0.003 ng/m3.";
    String ioos_category "Optical Properties";
    String long_name "Ti HAc L Avg Aerosol";
    String units "nanograms per cubic meter (ng/m3)";
  }
  Ti_HAc_L_Var_Aerosol {
    Float32 _FillValue NaN;
    Float32 actual_range 0.002, 0.106;
    String description "Acetic Acid Leachable particulate aerosol Ti concentration, variance";
    String ioos_category "Optical Properties";
    String long_name "Ti HAc L Var Aerosol";
    String units "nanograms per cubic meter (ng/m3)";
  }
  Ti_HAc_L_QF_Aerosol {
    Byte _FillValue 127;
    Byte actual_range 1, 9;
    String description "Acetic Acid Leachable particulate aerosol Ti concentration, data quality flag";
    String ioos_category "Optical Properties";
    String long_name "Ti HAc L QF Aerosol";
    String units "unitless";
  }
  V_HAc_L_Avg_Aerosol {
    Float32 _FillValue NaN;
    Float32 actual_range 0.0022, 0.647;
    String description "Acetic Acid Leachable particulate aerosol V concentration, average of 3 replicates. Detection limit = 0.0002 ng/m3.";
    String ioos_category "Optical Properties";
    String long_name "V HAc L Avg Aerosol";
    String units "nanograms per cubic meter (ng/m3)";
  }
  V_HAc_L_Var_Aerosol {
    Float32 _FillValue NaN;
    Float32 actual_range 0.0, 0.059;
    String description "Acetic Acid Leachable particulate aerosol V concentration, variance";
    String ioos_category "Optical Properties";
    String long_name "V HAc L Var Aerosol";
    String units "nanograms per cubic meter (ng/m3)";
  }
  V_HAc_L_QF_Aerosol {
    Byte _FillValue 127;
    Byte actual_range 1, 9;
    String description "Acetic Acid Leachable particulate aerosol V concentration, data quality flag";
    String ioos_category "Optical Properties";
    String long_name "V HAc L QF Aerosol";
    String units "unitless";
  }
  Mn_HAc_L_Avg_Aerosol {
    Float32 _FillValue NaN;
    Float32 actual_range 0.0058, 1.086;
    String description "Acetic Acid Leachable particulate aerosol Mn concentration, average of 3 replicates. Detection limit = 0.004 ng/m3.";
    String ioos_category "Optical Properties";
    String long_name "Mn HAc L Avg Aerosol";
    String units "nanograms per cubic meter (ng/m3)";
  }
  Mn_HAc_L_Var_Aerosol {
    Float32 _FillValue NaN;
    Float32 actual_range 5.0e-4, 0.129;
    String description "Acetic Acid Leachable particulate aerosol Mn concentration, variance";
    String ioos_category "Optical Properties";
    String long_name "Mn HAc L Var Aerosol";
    String units "nanograms per cubic meter (ng/m3)";
  }
  Mn_HAc_L_QF_Aerosol {
    Byte _FillValue 127;
    Byte actual_range 1, 9;
    String description "Acetic Acid Leachable particulate aerosol Mn concentration, data quality flag";
    String ioos_category "Optical Properties";
    String long_name "Mn HAc L QF Aerosol";
    String units "unitless";
  }
  Fe_HAc_L_Avg_Aerosol {
    Float32 _FillValue NaN;
    Float32 actual_range 0.22, 10.8;
    String description "Acetic Acid Leachable particulate aerosol Fe concentration, average of 3 replicates. Detection limit = 0.72 ng/m3.";
    String ioos_category "Optical Properties";
    String long_name "Fe HAc L Avg Aerosol";
    String units "nanograms per cubic meter (ng/m3)";
  }
  Fe_HAc_L_Var_Aerosol {
    Float32 _FillValue NaN;
    Float32 actual_range 0.03, 1.1;
    String description "Acetic Acid Leachable particulate aerosol Fe concentration, variance";
    String ioos_category "Optical Properties";
    String long_name "Fe HAc L Var Aerosol";
    String units "nanograms per cubic meter (ng/m3)";
  }
  Fe_HAc_L_QF_Aerosol {
    Byte _FillValue 127;
    Byte actual_range 1, 9;
    String description "Acetic Acid Leachable particulate aerosol Fe concentration, data quality flag";
    String ioos_category "Optical Properties";
    String long_name "Fe HAc L QF Aerosol";
    String units "unitless";
  }
  Cu_HAc_L_Avg_Aerosol {
    Float32 _FillValue NaN;
    Float32 actual_range 0.015, 1.155;
    String description "Acetic Acid Leachable particulate aerosol Cu concentration, average of 3 replicates. Detection limit = 0.001 ng/m3.";
    String ioos_category "Optical Properties";
    String long_name "Cu HAc L Avg Aerosol";
    String units "nanograms per cubic meter (ng/m3)";
  }
  Cu_HAc_L_Var_Aerosol {
    Float32 _FillValue NaN;
    Float32 actual_range 0.0, 0.131;
    String description "Acetic Acid Leachable particulate aerosol Cu concentration, variance";
    String ioos_category "Optical Properties";
    String long_name "Cu HAc L Var Aerosol";
    String units "nanograms per cubic meter (ng/m3)";
  }
  Cu_HAc_L_QF_Aerosol {
    Byte _FillValue 127;
    Byte actual_range 1, 9;
    String description "Acetic Acid Leachable particulate aerosol Cu concentration, data quality flag";
    String ioos_category "Optical Properties";
    String long_name "Cu HAc L QF Aerosol";
    String units "unitless";
  }
  Cd_HAc_L_Avg_Aerosol {
    Float32 _FillValue NaN;
    Float32 actual_range 0.0, 0.068;
    String description "Acetic Acid Leachable particulate aerosol Cd concentration, average of 3 replicates. Detection limit = 0.0026 ng/m3.";
    String ioos_category "Optical Properties";
    String long_name "Cd HAc L Avg Aerosol";
    String units "nanograms per cubic meter (ng/m3)";
  }
  Cd_HAc_L_Var_Aerosol {
    Float32 _FillValue NaN;
    Float32 actual_range 3.0e-4, 0.011;
    String description "Acetic Acid Leachable particulate aerosol Cd concentration, variance";
    String ioos_category "Optical Properties";
    String long_name "Cd HAc L Var Aerosol";
    String units "nanograms per cubic meter (ng/m3)";
  }
  Cd_HAc_L_QF_Aerosol {
    Byte _FillValue 127;
    Byte actual_range 1, 9;
    String description "Acetic Acid Leachable particulate aerosol Cd concentration, data quality flag";
    String ioos_category "Optical Properties";
    String long_name "Cd HAc L QF Aerosol";
    String units "unitless";
  }
  Pb_HAc_L_Avg_Aerosol {
    Float32 _FillValue NaN;
    Float32 actual_range 0.0, 0.608;
    String description "Acetic Acid Leachable particulate aerosol Pb concentration, average of 3 replicates. Detection limit = 0.091 ng/m3.";
    String ioos_category "Optical Properties";
    String long_name "Pb HAc L Avg Aerosol";
    String units "nanograms per cubic meter (ng/m3)";
  }
  Pb_HAc_L_Var_Aerosol {
    Float32 _FillValue NaN;
    Float32 actual_range 0.019, 0.069;
    String description "Acetic Acid Leachable particulate aerosol Pb concentration, variance";
    String ioos_category "Optical Properties";
    String long_name "Pb HAc L Var Aerosol";
    String units "nanograms per cubic meter (ng/m3)";
  }
  Pb_HAc_L_QF_Aerosol {
    Byte _FillValue 127;
    Byte actual_range 1, 9;
    String description "Acetic Acid Leachable particulate aerosol Pb concentration, data quality flag";
    String ioos_category "Optical Properties";
    String long_name "Pb HAc L QF Aerosol";
    String units "unitless";
  }
 }
  NC_GLOBAL {
    String access_formats ".htmlTable,.csv,.json,.mat,.nc,.tsv,.esriCsv,.geoJson,.odvTxt";
    String acquisition_description 
"Samples were collected using Florida State University's high vol aerosol
sampler (Tisch Environmental TSP TE5170V), located on the 03 deck, forward
railings. Samples were collected at the rate of 1 cubic meter per minute on
Whatman 41, 47 mm discs (cellulose esters; W41) and were acid cleaned.
 
Methods are described in:  
 Morton, P. L., Landing, W.M., Hsu, S.-C., Milne, A., Aguilar-Islas, A.M.,
Baker, A.R., Bowie, A.R., Buck, C.S., Gao, Y., Gichuki, S., Hastings, M.G.,
Hatta, M., Johansen, A. M., Losno, R., Mead, C., Patey, M.D., Swarr, G.,
Vandermark, A., Zamora, L.M. 2013. Methods for the sampling and analysis of
marine aerosols: results from the 2008 GEOTRACES aerosol intercalibration
experiment. Limnology and Oceanography: Methods. 11: 62-78.
doi:[10.4319/lom.2013.11.62](\\\\\"https://dx.doi.org/10.4319/lom.2013.11.62\\\\\")
 
Berger, C. J. M., Lippiatt, S. M., Lawrence, M. G., and Bruland, K. W. 2008.
Application of a chemical leach technique for estimating labile particulate
aluminum, iron, and manganese in the Columbia River plume and coastal waters
off Oregon and Washington. Journal of Geophysical Research-Oceans, 113.
doi:[10.1029/2007JC004703](\\\\\"https://dx.doi.org/10.1029/2007JC004703\\\\\")";
    String awards_0_award_nid "664915";
    String awards_0_award_number "OCE-1234417";
    String awards_0_data_url "http://www.nsf.gov/awardsearch/showAward.do?AwardNumber=1234417";
    String awards_0_funder_name "NSF Division of Ocean Sciences";
    String awards_0_funding_acronym "NSF OCE";
    String awards_0_funding_source_nid "355";
    String awards_0_program_manager "Dr Henrietta N Edmonds";
    String awards_0_program_manager_nid "51517";
    String awards_1_award_nid "664924";
    String awards_1_award_number "OCE-1454368";
    String awards_1_data_url "https://www.nsf.gov/awardsearch/showAward?AWD_ID=1454368";
    String awards_1_funder_name "NSF Division of Ocean Sciences";
    String awards_1_funding_acronym "NSF OCE";
    String awards_1_funding_source_nid "355";
    String awards_1_program_manager "Dr Henrietta N Edmonds";
    String awards_1_program_manager_nid "51517";
    String cdm_data_type "Other";
    String comment 
"Acetic Acid leachable trace metals from aerosols 
   GEOTRACES EPZT 
  PI: Ana Aguilar-Islas (University of Alaska Fairbanks) 
  Co-PIs: Clifton Buck (Skidaway Institute of Oceanography) & William Landing (Florida State University) 
  Contact: Ana Aguilar-Islas 
  Version: 19 July 2017";
    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 2.2d  13 Jun 2019";
    String date_created "2017-07-19T20:21:30Z";
    String date_modified "2017-10-23T17:58:18Z";
    String defaultDataQuery "&time";
    String doi "10.1575/1912/bco-dmo.717413";
    Float64 Easternmost_Easting -77.657;
    Float64 geospatial_lat_max -4.0701;
    Float64 geospatial_lat_min -16.0003;
    String geospatial_lat_units "degrees_north";
    Float64 geospatial_lon_max -77.657;
    Float64 geospatial_lon_min -142.9501;
    String geospatial_lon_units "degrees_east";
    String history 
"2019-08-24T13:42:17Z (local files)
2019-08-24T13:42:17Z https://erddap.bco-dmo.org/erddap/tabledap/bcodmo_dataset_709276.html";
    String infoUrl "https://www.bco-dmo.org/dataset/709276";
    String institution "BCO-DMO";
    String instruments_0_acronym "Aerosol_Sampler";
    String instruments_0_dataset_instrument_nid "709335";
    String instruments_0_description "A device that collects a sample of aerosol (dry particles or liquid droplets) from the atmosphere.";
    String instruments_0_instrument_external_identifier "https://vocab.nerc.ac.uk/collection/L05/current/13/";
    String instruments_0_instrument_name "Aerosol Sampler";
    String instruments_0_instrument_nid "691";
    String instruments_0_supplied_name "Tisch Environmental TSP TE5170V";
    String keywords "aerosol, air, air_vol_total, Al_HAc_L_Avg_Aerosol, Al_HAc_L_QF_Aerosol, Al_HAc_L_Var_Aerosol, average, bco, bco-dmo, biological, Cd_HAc_L_Avg_Aerosol, Cd_HAc_L_QF_Aerosol, Cd_HAc_L_Var_Aerosol, chemical, cruise, cruise_id, Cu_HAc_L_Avg_Aerosol, Cu_HAc_L_QF_Aerosol, Cu_HAc_L_Var_Aerosol, data, dataset, date, day, day_end, day_start, dmo, end, erddap, eventno, Fe_HAc_L_Avg_Aerosol, Fe_HAc_L_QF_Aerosol, Fe_HAc_L_Var_Aerosol, geotrc, GEOTRC_EVENTNO, GEOTRC_INSTR, GEOTRC_SAMPNO, hac, identifier, instr, iso, ISO_DateTime_UTC_end, julian, julian_day, lat_end, latitude, lon_end, longitude, management, Mn_HAc_L_Avg_Aerosol, Mn_HAc_L_QF_Aerosol, Mn_HAc_L_Var_Aerosol, month, month_end, month_start, oceanography, office, optical, optical properties, Pb_HAc_L_Avg_Aerosol, Pb_HAc_L_QF_Aerosol, Pb_HAc_L_Var_Aerosol, preliminary, properties, sampno, start, stnnbr, Ti_HAc_L_Avg_Aerosol, Ti_HAc_L_QF_Aerosol, Ti_HAc_L_Var_Aerosol, time, time_end_utc, time_start_utc, total, v, V_HAc_L_Avg_Aerosol, V_HAc_L_QF_Aerosol, V_HAc_L_Var_Aerosol, vol, year, year_end, year_start";
    String license 
"The data may be used and redistributed for free but is not intended
for legal use, since it may contain inaccuracies. Neither the data
Contributor, ERD, NOAA, nor the United States Government, nor any
of their employees or contractors, makes any warranty, express or
implied, including warranties of merchantability and fitness for a
particular purpose, or assumes any legal liability for the accuracy,
completeness, or usefulness, of this information.";
    String metadata_source "https://www.bco-dmo.org/api/dataset/709276";
    Float64 Northernmost_Northing -4.0701;
    String param_mapping "{'709276': {'ISO_DateTime_UTC_end': 'master - time', 'lon_start': 'flag - longitude', 'lat_start': 'flag - latitude'}}";
    String parameter_source "https://www.bco-dmo.org/mapserver/dataset/709276/parameters";
    String people_0_affiliation "University of Alaska Fairbanks";
    String people_0_affiliation_acronym "UAF";
    String people_0_person_name "Ana Aguilar-Islas";
    String people_0_person_nid "664918";
    String people_0_role "Principal Investigator";
    String people_0_role_type "originator";
    String people_1_affiliation "Skidaway Institute of Oceanography";
    String people_1_affiliation_acronym "SkIO";
    String people_1_person_name "Dr Clifton S. Buck";
    String people_1_person_nid "51301";
    String people_1_role "Co-Principal Investigator";
    String people_1_role_type "originator";
    String people_2_affiliation "Florida State University";
    String people_2_affiliation_acronym "FSU - EOAS";
    String people_2_person_name "Dr William  M. Landing";
    String people_2_person_nid "51302";
    String people_2_role "Co-Principal Investigator";
    String people_2_role_type "originator";
    String people_3_affiliation "University of Alaska Fairbanks";
    String people_3_affiliation_acronym "UAF";
    String people_3_person_name "Ana Aguilar-Islas";
    String people_3_person_nid "664918";
    String people_3_role "Contact";
    String people_3_role_type "related";
    String people_4_affiliation "Woods Hole Oceanographic Institution";
    String people_4_affiliation_acronym "WHOI BCO-DMO";
    String people_4_person_name "Shannon Rauch";
    String people_4_person_nid "51498";
    String people_4_role "BCO-DMO Data Manager";
    String people_4_role_type "related";
    String project "U.S. GEOTRACES East Pacific Zonal Transect, GEOTRACES Pacific section: Collection and analysis of atmospheric deposition";
    String projects_0_acronym "U.S. GEOTRACES EPZT";
    String projects_0_description 
"From the NSF Award Abstract
The mission of the International GEOTRACES Program (www.geotraces.org), of which the U.S. chemical oceanography research community is a founding member, is \"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\" (GEOTRACES Science Plan, 2006). In the United States, ocean chemists are currently in the process of organizing a zonal transect in the eastern tropical South Pacific (ETSP) from Peru to Tahiti as the second cruise of the U.S.GEOTRACES Program. This Pacific section includes a large area characterized by high rates of primary production and particle export in the eastern boundary associated with the Peru Upwelling, a large oxygen minimum zone that is a major global sink for fixed nitrogen, and a large hydrothermal plume arising from the East Pacific Rise. This particular section was selected as a result of open planning workshops in 2007 and 2008, with a final recommendation made by the U.S.GEOTRACES Steering Committee in 2009. It is the first part of a two-stage plan that will include a meridional section of the Pacific from Tahiti to Alaska as a subsequent expedition.
This award provides funding for management of the U.S.GEOTRACES Pacific campaign to a team of scientists from the University of Southern California, Old Dominion University, and the Woods Hole Oceanographic Institution. The three co-leaders will provide mission leadership, essential support services, and management structure for acquiring the trace elements and isotopes samples listed as core parameters in the International GEOTRACES Science Plan, plus hydrographic and nutrient data needed by participating investigators. With this support from NSF, the management team will (1) plan and coordinate the 52-day Pacific research cruise described above; (2) obtain representative samples for a wide variety of trace metals of interest using conventional CTD/rosette and GEOTRACES Sampling Systems; (3) acquire conventional JGOFS/WOCE-quality hydrographic data (CTD, transmissometer, fluorometer, oxygen sensor, etc) along with discrete samples for salinity, dissolved oxygen (to 1 uM detection limits), plant pigments, redox tracers such as ammonium and nitrite, and dissolved nutrients at micro- and nanomolar levels; (4) ensure that proper QA/QC protocols are followed and reported, as well as fulfilling all GEOTRACES Intercalibration protocols; (5) prepare and deliver all hydrographic-type data to the GEOTRACES Data Center (and US data centers); and (6) coordinate cruise communications between all participating investigators, including preparation of a hydrographic report/publication.
Broader Impacts: The project is part of an international collaborative program that has forged strong partnerships in the intercalibration and implementation phases that are unprecedented in chemical oceanography. The science product of these collective missions will enhance our ability to understand how to interpret the chemical composition of the ocean, and interpret how climate change will affect ocean chemistry. Partnerships include contributions to the infrastructure of developing nations with overlapping interests in the study area, in this case Peru. There is a strong educational component to the program, with many Ph.D. students carrying out thesis research within the program.
Figure 1. The 2013 GEOTRACES EPZT Cruise Track. [click on the image to view a larger version]";
    String projects_0_end_date "2015-06";
    String projects_0_geolocation "Eastern Tropical Pacific - Transect from Peru to Tahiti";
    String projects_0_name "U.S. GEOTRACES East Pacific Zonal Transect";
    String projects_0_project_nid "499723";
    String projects_0_project_website "http://www.geotraces.org/";
    String projects_0_start_date "2012-06";
    String projects_1_acronym "EPZT Aerosol Collection";
    String projects_1_description 
"During the 2013 GEOTRACES Eastern Pacific zonal transect, a gradient in aerosol inputs to surface waters will be encountered with higher inputs near Peru and decreasing offshore. This zonal section contrasts sharply to the high aerosol deposition areas found and sampled during the GEOTRACES North Atlantic Zonal Section in the fall of 2010 and 2011. As such, this Pacific section represents a unique opportunity to characterize aerosol and rainfall chemistry in a low deposition environment. Scientists from the University of Alaska and Florida State University plan to collect and characterize aerosol and rainfall samples along this transect, as well as distribute samples to the community. Bulk and size-fractionated aerosol samples collected on a 24 to 48-hour integrated basis and event-based rain samples will be analyzed for trace elements and isotopes (TEIs) to quantify their atmospheric input. The TEIs to be analyzed will be aluminum, vanadium, chromium, manganese, iron, cobalt, nickel, copper, zinc, cadmium, lead, and thorium, as well as the major ions sodium, magnesium, potassium, calcium, nitrate, phosphate, chlorine, and fluorine. Other efforts to be carried out as part of this study include (1) aerosol leaches to determine seawater-soluble and ultrapure-water-soluble TEI fractions: (2) determine the size fractionation and redox speciation of seawater-soluble iron: (3) obtain subsamples of water column samples from other GEOTRACES scientists for the analysis of the TEIs of interest to help interpret the atmospheric deposition data; and (4) collaborate with researchers from other institutions to characterize and constrain estimates of atmospheric deposition. This project will contribute towards the overall goal of the GEOTRACES Program by establishing the range of fractional aerosol solubility and better quantify deposition across the global ocean.
One graduate student from the University of Alaska would be supported and trained as part of this project. Relying on a cruise blog, email, and project website updates, the scientist from the University of Alaska plans to continue her interactions with students in Alaska, Arizona, and Florida and results from the study would be incorporated into class curricula, as well as disseminated via public outreach and web dissemination.";
    String projects_1_end_date "2016-11";
    String projects_1_geolocation "Eastern Tropical South Pacific";
    String projects_1_name "GEOTRACES Pacific section: Collection and analysis of atmospheric deposition";
    String projects_1_project_nid "664916";
    String projects_1_start_date "2012-12";
    String publisher_name "Shannon Rauch";
    String publisher_role "BCO-DMO Data Manager(s)";
    String sourceUrl "(local files)";
    Float64 Southernmost_Northing -16.0003;
    String standard_name_vocabulary "CF Standard Name Table v29";
    String subsetVariables "cruise_id, GEOTRC_INSTR, year_start, year_end";
    String summary 
"This dataset contains acetic acid leachable trace metals from bulk aerosol
samples collected during the 2013 US GEOTRACES EPZT section cruise, TN303, on
R/V Thomas G. Thompson.";
    String time_coverage_end "2013-12-16T22:27:00Z";
    String time_coverage_start "2013-10-29T14:41:00Z";
    String title "Acetic acid leachable trace metals from bulk aerosol samples collected during the US GEOTRACES EPZT section cruise (R/V Thomas G. Thompson TN303) in the Eastern Tropical Pacific from October to December 2013";
    String version "1";
    Float64 Westernmost_Easting -142.9501;
    String xml_source "osprey2erddap.update_xml() v1.5-beta";
  }
}

 

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.


 
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