Accessing BCO-DMO data
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BCO-DMO ERDDAP
Accessing BCO-DMO data |
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| Dataset Title: | [GP17-ANT Fe-binding ligands] - Dissolved iron-binding ligand concentrations and conditional stability constants from field samples collected on US GEOTRACES GP17-ANT cruise NBP24-01 on RVIB Palmer in the Amundsen Sea from Nov 2023 to Jan 2024 (Collaborative Research: U.S. GEOTRACES GP17-OCE and GP17-ANT: Characterizing iron-binding organic ligands in the Southern Ocean and implications for iron cycling in the global ocean) 
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| Institution: | BCO-DMO (Dataset ID: bcodmo_dataset_994890_v1) |
| Range: | longitude = -133.0225 to -99.6837°E, latitude = -74.3808 to -66.9774°N, depth = 2.0 to 4676.4m |
| Information: | Summary
| License
| FGDC
| ISO 19115
| Metadata
| Background
| Data Access Form
| Files
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Zoom: ![[The graph you specified. Please be patient.]](https://erddap.bco-dmo.org/erddap/tabledap/bcodmo_dataset_994890_v1.png?longitude,latitude,SAMPLE_ID&.draw=markers&.marker=5%7C5&.color=0x000000&.colorBar=%7C%7C%7C%7C%7C&.bgColor=0xffccccff)
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Attributes {
s {
CRUISE {
String long_name "Cruise";
String units "unitless";
}
SAMPLE_ID {
Int32 actual_range 18824, 21018;
String long_name "Sample_id";
String units "unitless";
}
STATION {
Int32 actual_range 3, 29;
String long_name "Station";
String units "unitless";
}
DATE {
String long_name "Date";
String units "unitless";
}
latitude {
String _CoordinateAxisType "Lat";
Float32 actual_range -74.3808, -66.9774;
String axis "Y";
String ioos_category "Location";
String long_name "Latitude";
String standard_name "latitude";
String units "degrees_north";
}
longitude {
String _CoordinateAxisType "Lon";
Float32 actual_range -133.0225, -99.6837;
String axis "X";
String ioos_category "Location";
String long_name "Longitude";
String standard_name "longitude";
String units "degrees_east";
}
PLATFORM {
String long_name "Platform";
String units "unitless";
}
depth {
String _CoordinateAxisType "Height";
String _CoordinateZisPositive "down";
Float32 actual_range 2.0, 4676.4;
String axis "Z";
String ioos_category "Location";
String long_name "Depth";
String positive "down";
String standard_name "depth";
String units "m";
}
Fe_D_CONC {
Float32 actual_range 0.045, 6.599;
String long_name "Fe_d_conc";
String units "Nanomole per liter (nM)";
}
L1Fe_D_CONC_BOTTLE_7vrudm {
Float32 actual_range 1.17, 7.14;
String long_name "L1fe_d_conc_bottle_7vrudm";
String units "nM";
}
L1_FLAG_BOTTLE_7vrudm {
Int32 actual_range 1, 6;
String long_name "L1_flag_bottle_7vrudm";
String units "unitless";
}
L1_95pcnt_CI_BOTTLE_7vrudm {
Float32 actual_range 0.02, 0.22;
String long_name "L1_95pcnt_ci_bottle_7vrudm";
String units "nM";
}
L1Fe_D_LogK_BOTTLE_iqa9ow {
Float32 actual_range 11.81, 12.65;
String long_name "L1fe_d_logk_bottle_iqa9ow";
String units "unitless";
}
Log_K1_FLAG_BOTTLE_iqa9ow {
Int32 actual_range 1, 6;
String long_name "Log_k1_flag_bottle_iqa9ow";
String units "unitless";
}
Log_K1_95pcnt_CI_BOTTLE_iqa9ow {
Float32 actual_range 0.02, 0.4;
String long_name "Log_k1_95pcnt_ci_bottle_iqa9ow";
String units "unitless";
}
L2Fe_D_CONC_BOTTLE_hci3xl {
Float32 actual_range 1.06, 5.16;
String long_name "L2fe_d_conc_bottle_hci3xl";
String units "nM";
}
L2_FLAG_BOTTLE_hci3xl {
Int32 actual_range 2, 6;
String long_name "L2_flag_bottle_hci3xl";
String units "unitless";
}
L2_95pcnt_CI_BOTTLE_hci3xl {
Float32 actual_range 0.01, 0.4;
String long_name "L2_95pcnt_ci_bottle_hci3xl";
String units "nM";
}
L2Fe_D_LogK_BOTTLE_ep1ypm {
Float32 actual_range 11.1, 11.8;
String long_name "L2fe_d_logk_bottle_ep1ypm";
String units "unitless";
}
Log_K2_FLAG_BOTTLE_ep1ypm {
Int32 actual_range 2, 6;
String long_name "Log_k2_flag_bottle_ep1ypm";
String units "unitless";
}
Log_K2_95pcnt_CI_BOTTLE_ep1ypm {
Float32 actual_range 0.01, 0.44;
String long_name "Log_k2_95pcnt_ci_bottle_ep1ypm";
String units "unitless";
}
L3Fe_D_CONC_BOTTLE {
Float32 actual_range 1.45, 4.46;
String long_name "L3fe_d_conc_bottle";
String units "nM";
}
L3_FLAG_BOTTLE {
Int32 actual_range 1, 6;
String long_name "L3_flag_bottle";
String units "unitless";
}
L3_95pcnt_CI_BOTTLE {
Float32 actual_range 0.08, 0.49;
String long_name "L3_95pcnt_ci_bottle";
String units "nM";
}
L3Fe_D_LogK_BOTTLE {
Float32 actual_range 10.58, 11.1;
String long_name "L3fe_d_logk_bottle";
String units "unitless";
}
Log_K3_FLAG_BOTTLE {
Int32 actual_range 1, 6;
String long_name "Log_k3_flag_bottle";
String units "unitless";
}
Log_K3_95pcnt_CI_BOTTLE {
Float32 actual_range 0.03, 0.25;
String long_name "Log_k3_95pcnt_ci_bottle";
String units "unitless";
}
L1Fe_D_CONC_FISH_7e95ka {
Float32 actual_range 1.58, 1.58;
String long_name "L1fe_d_conc_fish_7e95ka";
String units "nM";
}
L1_FLAG_FISH_7e95ka {
Int32 actual_range 1, 6;
String long_name "L1_flag_fish_7e95ka";
String units "unitless";
}
L1_95pcnt_CI_FISH_7e95ka {
Float32 actual_range 0.12, 0.12;
String long_name "L1_95pcnt_ci_fish_7e95ka";
String units "nM";
}
L1Fe_D_LogK_FISH_xvfeba {
Float32 actual_range 11.99, 11.99;
String long_name "L1fe_d_logk_fish_xvfeba";
String units "unitless";
}
Log_K1_FLAG_FISH_xvfeba {
Int32 actual_range 1, 6;
String long_name "Log_k1_flag_fish_xvfeba";
String units "unitless";
}
Log_K1_95pcnt_CI_FISH_xvfeba {
Float32 actual_range 0.13, 0.13;
String long_name "Log_k1_95pcnt_ci_fish_xvfeba";
String units "unitless";
}
L2Fe_D_CONC_FISH_saguog {
Float32 actual_range 1.64, 8.45;
String long_name "L2fe_d_conc_fish_saguog";
String units "nM";
}
L2_FLAG_FISH_saguog {
Int32 actual_range 2, 6;
String long_name "L2_flag_fish_saguog";
String units "unitless";
}
L2_95pcnt_CI_FISH_saguog {
Float32 actual_range 0.09, 0.3;
String long_name "L2_95pcnt_ci_fish_saguog";
String units "nM";
}
L2Fe_D_LogK_FISH_nv0tcf {
Float32 actual_range 11.2, 11.79;
String long_name "L2fe_d_logk_fish_nv0tcf";
String units "unitless";
}
Log_K2_FLAG_FISH_nv0tcf {
Int32 actual_range 2, 6;
String long_name "Log_k2_flag_fish_nv0tcf";
String units "unitless";
}
Log_K2_95pcnt_CI_FISH_nv0tcf {
Float32 actual_range 0.01, 0.13;
String long_name "Log_k2_95pcnt_ci_fish_nv0tcf";
String units "unitless";
}
L3Fe_D_CONC_FISH {
Float32 actual_range 2.19, 4.22;
String long_name "L3fe_d_conc_fish";
String units "nM";
}
L3_FLAG_FISH {
Int32 actual_range 1, 6;
String long_name "L3_flag_fish";
String units "unitless";
}
L3_95pcnt_CI_FISH {
Float32 actual_range 0.17, 0.59;
String long_name "L3_95pcnt_ci_fish";
String units "nM";
}
L3Fe_D_LogK_FISH {
Float32 actual_range 10.92, 11.08;
String long_name "L3fe_d_logk_fish";
String units "unitless";
}
Log_K3_FLAG_FISH {
Int32 actual_range 1, 6;
String long_name "Log_k3_flag_fish";
String units "unitless";
}
Log_K3_95pcnt_CI_FISH {
Float32 actual_range 0.1, 0.19;
String long_name "Log_k3_95pcnt_ci_fish";
String units "unitless";
}
LFetot {
Float32 actual_range 1.06, 8.45;
String long_name "Lfetot";
String units "nM eq Fe";
}
LFetot_95pcnt_CI {
Float32 actual_range 0.01, 11.1;
String long_name "Lfetot_95pcnt_ci";
String units "nM eq Fe";
}
eLFetot {
Float32 actual_range -0.43, 8.29;
String long_name "Elfetot";
String units "nM eq Fe";
}
eLFe1 {
Float32 actual_range -0.43, 3.05;
String long_name "Elfe1";
String units "nM eq Fe";
}
Log_Ktot {
Float32 actual_range 10.58, 12.65;
String long_name "Log_ktot";
String units "unitless";
}
Log_Ktot_95pcnt_CI {
Float32 actual_range 0.01, 0.44;
String long_name "Log_ktot_95pcnt_ci";
String units "unitless";
}
}
NC_GLOBAL {
String cdm_data_type "Other";
String Conventions "COARDS, CF-1.6, ACDD-1.3";
String creator_email "info@bco-dmo.org";
String creator_name "BCO-DMO";
String creator_url "https://www.bco-dmo.org/";
String doi "10.26008/1912/bco-dmo.994890.1";
Float64 Easternmost_Easting -99.6837;
Float64 geospatial_lat_max -66.9774;
Float64 geospatial_lat_min -74.3808;
String geospatial_lat_units "degrees_north";
Float64 geospatial_lon_max -99.6837;
Float64 geospatial_lon_min -133.0225;
String geospatial_lon_units "degrees_east";
Float64 geospatial_vertical_max 4676.4;
Float64 geospatial_vertical_min 2.0;
String geospatial_vertical_positive "down";
String geospatial_vertical_units "m";
String history
"2026-04-02T18:42:22Z (local files)
2026-04-02T18:42:22Z https://erddap.bco-dmo.org/tabledap/bcodmo_dataset_994890_v1.das";
String infoUrl "https://osprey.bco-dmo.org/dataset/994890";
String institution "BCO-DMO";
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.";
Float64 Northernmost_Northing -66.9774;
String sourceUrl "(local files)";
Float64 Southernmost_Northing -74.3808;
String summary
"Iron is an essential micronutrient for marine life, and its distribution across the world ocean is mostly driven by its complexation by a fraction of the dissolved organic matter pool called iron-binding ligands. This dataset includes the concentration and conditional stability constant of dissolved iron-binding ligands of samples collected during the U.S. GEOTRACES GP17-ANT cruise. This cruise was aiming to investigate the distribution of trace metals and dependent variables in the Amundsen Sea (Antarctica), hotspot of primary production and of major interest in carbon cycling. The cruise departed Punta Arenas (Chile) on November 29th, 2023 and arrived in Lyttelton (New Zealand) on January 28th 2024, after sample collection in the Amundsen Sea (Antarctica). Seawater samples were collected with a tow-fish and a trace metal clean rosette equipped with 24 GoFlo bottles, placed in acid-clean FLPE bottles, and stored frozen (-20 degrees Celsius) until onboard analysis by Dr. Léo Mahieu, if not analyzed within 24 hours after collection.
The Amundsen Sea is the site of some of the biggest phytoplanktonic blooms happening seasonally across the world ocean, and is, therefore, an important zone for carbon fixation and export. Yet, uncertainty remains about the processes fueling this bloom, notably for iron. The Amundsen Sea is characterized by shallow depth allowing for connectivity between sediment resuspension and phytoplankton iron supply, and by one of the higher rates of the sea-ice melt rate observed on the Antarctic continent. This dataset is the first one to present iron-binding ligand characteristics in samples deeper than 300 m in the Amundsen Sea, and allows us to report on the impact of sediment resuspension, ice melting, and biological productivity on iron-binding ligand characteristics and on their role in transporting iron in the Amundsen Sea.";
String title "[GP17-ANT Fe-binding ligands] - Dissolved iron-binding ligand concentrations and conditional stability constants from field samples collected on US GEOTRACES GP17-ANT cruise NBP24-01 on RVIB Palmer in the Amundsen Sea from Nov 2023 to Jan 2024 (Collaborative Research: U.S. GEOTRACES GP17-OCE and GP17-ANT: Characterizing iron-binding organic ligands in the Southern Ocean and implications for iron cycling in the global ocean)";
Float64 Westernmost_Easting -133.0225;
}
}
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