Contributors | Affiliation | Role |
---|---|---|
John, Seth G. | University of Southern California (USC) | Principal Investigator |
Rauch, Shannon | Woods Hole Oceanographic Institution (WHOI BCO-DMO) | BCO-DMO Data Manager |
Concentrations and stable isotope ratios of Fe, Zn, and Cd from the US GEOTRACES Arctic cruise GN01 (HLY1502) from August to October 2015. A subset of these data has been published in Zhang et al., 2019.
Seawater dissolved samples were taken from the US GEOTRACES trace-metal clean rosette, or underway towfish system.
Methods for Fe, Zn, and Cd stable isotope and concentration analyses have been described in detail in previous manuscripts (Conway et al., 2016, 2013; Conway & John, 2014a, 2014b; T.M. Conway & John, 2015; Tim M Conway & John, 2015; John et al., 2018a, 2018b)). Briefly:
Concentration measurements were made using an offline adaptation of the seaFAST-pico metal extraction system (Elemental Scientific Inc.) as described in Lagerstrom et al. (2013). Briefly, using the seaFAST, 10 mL aliquots of seawater were extracted onto Nobias PA1 chelating resin at pH ~ 6.5 with an ammonium acetate/acetic acid buffer, then eluted in 10% v/v nitric acid (HNO3). Metal concentrations were measured on a Thermo Fisher Element 2 HR-ICP-MS.
Fe, Zn, Cd, Ni, Cu, and Pb concentrations were measured by isotope dilution. Recoveries for Ni were used to adjust the final concentrations of Mn and REEs.
The accuracy of our analytical procedure was verified by analysis of a seawater reference material (GEOTRACES 2008 GS), for which good agreement with the reported consensus values were obtained.
Quality Control and Intercalibration: refer to the Intercalibration Report Supplemental Document (PDF).
Data quality flags:
SeaDataNet data quality flags have been assigned to these data. More information is available from GEOTRACES at http://www.geotraces.org/library-88/geotraces-policies/1577-geotraces-quality-flag-policy and from SeaDataNet at https://www.seadatanet.org/Standards/Data-Quality-Control. In summary:
0 = no quality control
1 = good value
2 = probably good value
3 = probably bad value
4 = bad value
5 = changed value
6 = value below detection (BDL)
7 = value in excess
8 = interpolated value
9 = missing value
BCO-DMO Processing:
- changed #N/A and #VALUE! to nd ("no data");
- added start and end ISO 8601 date/time fields;
- changed date/time of 9/13/2015 24:00 to 9/14/2015 00:00.
File |
---|
Fe_Zn_Cd.csv (Comma Separated Values (.csv), 357.29 KB) MD5:ecfd1395f3af87c99c93ecd8356e4b6c Primary data file for dataset ID 812233 |
File |
---|
GEOTRACES Intercalibration Report - Seth John - HLY1502 Fe, Zn, Cd filename: 0000-0002-8257-626X-HLY1502-multiple-param-intercal-report.pdf (Portable Document Format (.pdf), 911.85 KB) MD5:a82b228262705fb9d2afd85a9971be45 GEOTRACES Intercalibration report for HLY1502 (GN01) Fe, Zn, and Cd data provided by Seth John. |
Parameter | Description | Units |
Station_ID | Station ID number | unitless |
Start_Date_UTC | Start date (UTC); format: mm/dd/yyyy | unitless |
Start_Time_UTC | Start time (UTC); format: HH:MM | unitless |
Start_ISO_DateTime_UTC | Start date and time (UTC) formatted to ISO8601 standard: yyyy-mm-ddTHH:MMZ | unitless |
End_Date_UTC | End date (UTC); format: mm/dd/yyyy | unitless |
End_Time_UTC | End time (UTC); format: HH:MM | unitless |
End_ISO_DateTime_UTC | End date and time (UTC) formatted to ISO8601 standard: yyyy-mm-ddTHH:MMZ | unitless |
Start_Latitude | Start latitude | degrees North |
Start_Longitude | Start longitude | degrees East |
End_Latitude | End latitude | degrees North |
End_Longitude | End longitude | degrees East |
Event_ID | Event number | unitless |
Sample_ID | GEOTRACES sample number | unitless |
Sample_Depth | Sample depth | meters (m) |
Cd_D_CONC_BOTTLE_zd8dwc | Concentration of dissolved Cd | nmol/kg |
SD1_Cd_D_CONC_BOTTLE_zd8dwc | One standard deviation of Cd_D_CONC_BOTTLE_zd8dwc | nmol/kg |
Flag_Cd_D_CONC_BOTTLE_zd8dwc | Quality flag for Cd_D_CONC_BOTTLE_zd8dwc | unitless |
Cd_114_110_D_DELTA_BOTTLE_hzoojp | Atom ratio of dissolved Cd isotopes expressed in conventional DELTA notation referenced to {NIST3108} | per mil |
SD1_Cd_114_110_D_DELTA_BOTTLE_hzoojp | One standard deviation of Cd_114_110_D_DELTA_BOTTLE_hzoojp | per mil |
Flag_Cd_114_110_D_DELTA_BOTTLE_hzoojp | Quality flag for Cd_114_110_D_DELTA_BOTTLE_hzoojp | unitless |
Fe_56_54_D_DELTA_BOTTLE_uudhui | Atom ratio of dissolved Fe isotopes expressed in conventional DELTA notation referenced to {IRMM-14} | per mil |
SD1_Fe_56_54_D_DELTA_BOTTLE_uudhui | One standard deviation of Fe_56_54_D_DELTA_BOTTLE_uudhui | per mil |
Flag_Fe_56_54_D_DELTA_BOTTLE_uudhui | Quality flag for Fe_56_54_D_DELTA_BOTTLE_uudhui | unitless |
Zn_66_64_D_DELTA_BOTTLE_i6ay6z | Atom ratio of dissolved Zn isotopes expressed in conventional DELTA notation referenced to {Lyon-JMC} | per mil |
SD1_Zn_66_64_D_DELTA_BOTTLE_i6ay6z | One standard deviation of Zn_66_64_D_DELTA_BOTTLE_i6ay6z | per mil |
Flag_Zn_66_64_D_DELTA_BOTTLE_i6ay6z | Quality flag for Zn_66_64_D_DELTA_BOTTLE_i6ay6z | unitless |
Co_DL_CONC_BOTTLE_3gtmxg | Concentration of dissolved labile Co | pmol/kg |
SD1_Co_DL_CONC_BOTTLE_3gtmxg | One standard deviation of Co_DL_CONC_BOTTLE_3gtmxg | pmol/kg |
Flag_Co_DL_CONC_BOTTLE_3gtmxg | Quality flag for Co_DL_CONC_BOTTLE_3gtmxg | unitless |
Cu_D_CONC_BOTTLE_z43fha | Concentration of dissolved Cu | nmol/kg |
SD1_Cu_D_CONC_BOTTLE_z43fha | One standard deviation of Cu_D_CONC_BOTTLE_z43fha | nmol/kg |
Flag_Cu_D_CONC_BOTTLE_z43fha | Quality flag for Cu_D_CONC_BOTTLE_z43fha | unitless |
Fe_D_CONC_BOTTLE_kifzto | Concentration of dissolved Fe | nmol/kg |
SD1_Fe_D_CONC_BOTTLE_kifzto | One standard deviation of Fe_D_CONC_BOTTLE_kifzto | nmol/kg |
Flag_Fe_D_CONC_BOTTLE_kifzto | Quality flag for Fe_D_CONC_BOTTLE_kifzto | unitless |
Mn_D_CONC_BOTTLE_1mzq8u | Concentration of dissolved Mn | nmol/kg |
SD1_Mn_D_CONC_BOTTLE_1mzq8u | One standard deviation of Mn_D_CONC_BOTTLE_1mzq8u | nmol/kg |
Flag_Mn_D_CONC_BOTTLE_1mzq8u | Quality flag for Mn_D_CONC_BOTTLE_1mzq8u | unitless |
Ni_D_CONC_BOTTLE_pcaozt | Concentration of dissolved Ni | nmol/kg |
SD1_Ni_D_CONC_BOTTLE_pcaozt | One standard deviation of Ni_D_CONC_BOTTLE_pcaozt | nmol/kg |
Flag_Ni_D_CONC_BOTTLE_pcaozt | Quality flag for Ni_D_CONC_BOTTLE_pcaozt | unitless |
Zn_D_CONC_BOTTLE_pcrqaj | Concentration of dissolved Zn | nmol/kg |
SD1_Zn_D_CONC_BOTTLE_pcrqaj | One standard deviation of Zn_D_CONC_BOTTLE_pcrqaj | nmol/kg |
Flag_Zn_D_CONC_BOTTLE_pcrqaj | Quality flag for Zn_D_CONC_BOTTLE_pcrqaj | unitless |
Cd_D_CONC_FISH_dqbtwr | Concentration of dissolved Cd | nmol/kg |
SD1_Cd_D_CONC_FISH_dqbtwr | One standard deviation of Cd_D_CONC_FISH_dqbtwr | nmol/kg |
Flag_Cd_D_CONC_FISH_dqbtwr | Quality flag for Cd_D_CONC_FISH_dqbtwr | unitless |
Y_D_CONC_BOTTLE_trggtc | Concentration of dissolved Yttrium | pmol/kg |
SD1_Y_D_CONC_BOTTLE_trggtc | One standard deviation of Y_D_CONC_BOTTLE_trggtc | pmol/kg |
Flag_Y_D_CONC_BOTTLE_trggtc | Quality flag for Y_D_CONC_BOTTLE_trggtc | unitless |
La_D_CONC_BOTTLE_xswaw3 | Concentration of dissolved La | pmol/kg |
SD1_La_D_CONC_BOTTLE_xswaw3 | One standard deviation of La_D_CONC_BOTTLE_xswaw3 | pmol/kg |
Flag_La_D_CONC_BOTTLE_xswaw3 | Quality flag for La_D_CONC_BOTTLE_xswaw3 | unitless |
Ce_D_CONC_BOTTLE_awxzur | Concentration of dissolved Ce | pmol/kg |
SD1_Ce_D_CONC_BOTTLE_awxzur | One standard deviation of Ce_D_CONC_BOTTLE_awxzur | pmol/kg |
Flag_Ce_D_CONC_BOTTLE_awxzur | Quality flag for Ce_D_CONC_BOTTLE_awxzur | unitless |
Pr_D_CONC_BOTTLE_mlh3fr | Concentration of dissolved Pr | pmol/kg |
SD1_Pr_D_CONC_BOTTLE_mlh3fr | One standard deviation of Pr_D_CONC_BOTTLE_mlh3fr | pmol/kg |
Flag_Pr_D_CONC_BOTTLE_mlh3fr | Quality flag for Pr_D_CONC_BOTTLE_mlh3fr | unitless |
Nd_D_CONC_BOTTLE_mglfy0 | Concentration of dissolved Nd | pmol/kg |
SD1_Nd_D_CONC_BOTTLE_mglfy0 | One standard deviation of Nd_D_CONC_BOTTLE_mglfy0 | pmol/kg |
Flag_Nd_D_CONC_BOTTLE_mglfy0 | Quality flag for Nd_D_CONC_BOTTLE_mglfy0 | unitless |
Sm_D_CONC_BOTTLE_drokap | Concentration of dissolved Sm | pmol/kg |
SD1_Sm_D_CONC_BOTTLE_drokap | One standard deviation of Sm_D_CONC_BOTTLE_drokap | pmol/kg |
Flag_Sm_D_CONC_BOTTLE_drokap | Quality flag for Sm_D_CONC_BOTTLE_drokap | unitless |
Eu_D_CONC_BOTTLE_zb3bss | Concentration of dissolved Eu | pmol/kg |
SD1_Eu_D_CONC_BOTTLE_zb3bss | One standard deviation of Eu_D_CONC_BOTTLE_zb3bss | pmol/kg |
Flag_Eu_D_CONC_BOTTLE_zb3bss | Quality flag for Eu_D_CONC_BOTTLE_zb3bss | unitless |
Gd_D_CONC_BOTTLE_ofrvjw | Concentration of dissolved Gd | pmol/kg |
SD1_Gd_D_CONC_BOTTLE_ofrvjw | One standard deviation of Gd_D_CONC_BOTTLE_ofrvjw | pmol/kg |
Flag_Gd_D_CONC_BOTTLE_ofrvjw | Quality flag for Gd_D_CONC_BOTTLE_ofrvjw | unitless |
Tb_D_CONC_BOTTLE_8muviu | Concentration of dissolved Tb | pmol/kg |
SD1_Tb_D_CONC_BOTTLE_8muviu | One standard deviation of Tb_D_CONC_BOTTLE_8muviu | pmol/kg |
Flag_Tb_D_CONC_BOTTLE_8muviu | Quality flag for Tb_D_CONC_BOTTLE_8muviu | unitless |
Dy_D_CONC_BOTTLE_i378o5 | Concentration of dissolved Dy | pmol/kg |
SD1_Dy_D_CONC_BOTTLE_i378o5 | One standard deviation of Dy_D_CONC_BOTTLE_i378o5 | pmol/kg |
Flag_Dy_D_CONC_BOTTLE_i378o5 | Quality flag for Dy_D_CONC_BOTTLE_i378o5 | unitless |
Ho_D_CONC_BOTTLE_kppkgb | Concentration of dissolved Ho | pmol/kg |
SD1_Ho_D_CONC_BOTTLE_kppkgb | One standard deviation of Ho_D_CONC_BOTTLE_kppkgb | pmol/kg |
Flag_Ho_D_CONC_BOTTLE_kppkgb | Quality flag for Ho_D_CONC_BOTTLE_kppkgb | unitless |
Er_D_CONC_BOTTLE_uomlxl | Concentration of dissolved Er | pmol/kg |
SD1_Er_D_CONC_BOTTLE_uomlxl | One standard deviation of Er_D_CONC_BOTTLE_uomlxl | pmol/kg |
Flag_Er_D_CONC_BOTTLE_uomlxl | Quality flag for Er_D_CONC_BOTTLE_uomlxl | unitless |
Tm_D_CONC_BOTTLE_v95caj | Concentration of dissolved Tm | pmol/kg |
SD1_Tm_D_CONC_BOTTLE_v95caj | One standard deviation of Tm_D_CONC_BOTTLE_v95caj | pmol/kg |
Flag_Tm_D_CONC_BOTTLE_v95caj | Quality flag for Tm_D_CONC_BOTTLE_v95caj | unitless |
Yb_D_CONC_BOTTLE_8ykca4 | Concentration of dissolved Yb | pmol/kg |
SD1_Yb_D_CONC_BOTTLE_8ykca4 | One standard deviation of Yb_D_CONC_BOTTLE_8ykca4 | pmol/kg |
Flag_Yb_D_CONC_BOTTLE_8ykca4 | Quality flag for Yb_D_CONC_BOTTLE_8ykca4 | unitless |
Lu_D_CONC_BOTTLE_b0i7yh | Concentration of dissolved Lu | pmol/kg |
SD1_Lu_D_CONC_BOTTLE_b0i7yh | One standard deviation of Lu_D_CONC_BOTTLE_b0i7yh | pmol/kg |
Flag_Lu_D_CONC_BOTTLE_b0i7yh | Quality flag for Lu_D_CONC_BOTTLE_b0i7yh | unitless |
Cr_D_CONC_BOTTLE_uqdtta | Concentration of dissolved Cr | nmol/kg |
SD1_Cr_D_CONC_BOTTLE_uqdtta | One standard deviation of Cr_D_CONC_BOTTLE_uqdtta | nmol/kg |
Flag_Cr_D_CONC_BOTTLE_uqdtta | Quality flag for Cr_D_CONC_BOTTLE_uqdtta | unitless |
Pb_D_CONC_BOTTLE_i4na0j | Concentration of dissolved Pb | pmol/kg |
SD1_Pb_D_CONC_BOTTLE_i4na0j | One standard deviation of Pb_D_CONC_BOTTLE_i4na0j | pmol/kg |
Flag_Pb_D_CONC_BOTTLE_i4na0j | Quality flag for Pb_D_CONC_BOTTLE_i4na0j | unitless |
Y_D_CONC_FISH_ryknah | Concentration of dissolved Yttrium | pmol/kg |
SD1_Y_D_CONC_FISH_ryknah | One standard deviation of Y_D_CONC_FISH_ryknah | pmol/kg |
Flag_Y_D_CONC_FISH_ryknah | Quality flag for Y_D_CONC_FISH_ryknah | unitless |
La_D_CONC_FISH_9efkaf | Concentration of dissolved La | pmol/kg |
SD1_La_D_CONC_FISH_9efkaf | One standard deviation of La_D_CONC_FISH_9efkaf | pmol/kg |
Flag_La_D_CONC_FISH_9efkaf | Quality flag for La_D_CONC_FISH_9efkaf | unitless |
Ce_D_CONC_FISH_4si6pa | Concentration of dissolved Ce | pmol/kg |
SD1_Ce_D_CONC_FISH_4si6pa | One standard deviation of Ce_D_CONC_FISH_4si6pa | pmol/kg |
Flag_Ce_D_CONC_FISH_4si6pa | Quality flag for Ce_D_CONC_FISH_4si6pa | unitless |
Pr_D_CONC_FISH_mypzod | Concentration of dissolved Pr | pmol/kg |
SD1_Pr_D_CONC_FISH_mypzod | One standard deviation of Pr_D_CONC_FISH_mypzod | pmol/kg |
Flag_Pr_D_CONC_FISH_mypzod | Quality flag for Pr_D_CONC_FISH_mypzod | unitless |
Nd_D_CONC_FISH_gaiszt | Concentration of dissolved Nd | pmol/kg |
SD1_Nd_D_CONC_FISH_gaiszt | One standard deviation of Nd_D_CONC_FISH_gaiszt | pmol/kg |
Flag_Nd_D_CONC_FISH_gaiszt | Quality flag for Nd_D_CONC_FISH_gaiszt | unitless |
Sm_D_CONC_FISH_wheali | Concentration of dissolved Sm | pmol/kg |
SD1_Sm_D_CONC_FISH_wheali | One standard deviation of Sm_D_CONC_FISH_wheali | pmol/kg |
Flag_Sm_D_CONC_FISH_wheali | Quality flag for Sm_D_CONC_FISH_wheali | unitless |
Eu_D_CONC_FISH_qhaykk | Concentration of dissolved Eu | pmol/kg |
SD1_Eu_D_CONC_FISH_qhaykk | One standard deviation of Eu_D_CONC_FISH_qhaykk | pmol/kg |
Flag_Eu_D_CONC_FISH_qhaykk | Quality flag for Eu_D_CONC_FISH_qhaykk | unitless |
Gd_D_CONC_FISH_cebboc | Concentration of dissolved Gd | pmol/kg |
SD1_Gd_D_CONC_FISH_cebboc | One standard deviation of Gd_D_CONC_FISH_cebboc | pmol/kg |
Flag_Gd_D_CONC_FISH_cebboc | Quality flag for Gd_D_CONC_FISH_cebboc | unitless |
Tb_D_CONC_FISH_edjnx5 | Concentration of dissolved Tb | pmol/kg |
SD1_Tb_D_CONC_FISH_edjnx5 | One standard deviation of Tb_D_CONC_FISH_edjnx5 | pmol/kg |
Flag_Tb_D_CONC_FISH_edjnx5 | Quality flag for Tb_D_CONC_FISH_edjnx5 | unitless |
Dy_D_CONC_FISH_extaat | Concentration of dissolved Dy | pmol/kg |
SD1_Dy_D_CONC_FISH_extaat | One standard deviation of Dy_D_CONC_FISH_extaat | pmol/kg |
Flag_Dy_D_CONC_FISH_extaat | Quality flag for Dy_D_CONC_FISH_extaat | unitless |
Ho_D_CONC_FISH_tfxiei | Concentration of dissolved Ho | pmol/kg |
SD1_Ho_D_CONC_FISH_tfxiei | One standard deviation of Ho_D_CONC_FISH_tfxiei | pmol/kg |
Flag_Ho_D_CONC_FISH_tfxiei | Quality flag for Ho_D_CONC_FISH_tfxiei | unitless |
Er_D_CONC_FISH_orcqve | Concentration of dissolved Er | pmol/kg |
SD1_Er_D_CONC_FISH_orcqve | One standard deviation of Er_D_CONC_FISH_orcqve | pmol/kg |
Flag_Er_D_CONC_FISH_orcqve | Quality flag for Er_D_CONC_FISH_orcqve | unitless |
Tm_D_CONC_FISH_hndqhw | Concentration of dissolved Tm | pmol/kg |
SD1_Tm_D_CONC_FISH_hndqhw | One standard deviation of Tm_D_CONC_FISH_hndqhw | pmol/kg |
Flag_Tm_D_CONC_FISH_hndqhw | Quality flag for Tm_D_CONC_FISH_hndqhw | unitless |
Yb_D_CONC_FISH_pyhpll | Concentration of dissolved Yb | pmol/kg |
SD1_Yb_D_CONC_FISH_pyhpll | One standard deviation of Yb_D_CONC_FISH_pyhpll | pmol/kg |
Flag_Yb_D_CONC_FISH_pyhpll | Quality flag for Yb_D_CONC_FISH_pyhpll | unitless |
Lu_D_CONC_FISH_ama6pi | Concentration of dissolved Lu | pmol/kg |
SD1_Lu_D_CONC_FISH_ama6pi | One standard deviation of Lu_D_CONC_FISH_ama6pi | pmol/kg |
Flag_Lu_D_CONC_FISH_ama6pi | Quality flag for Lu_D_CONC_FISH_ama6pi | unitless |
Cd_114_110_D_DELTA_FISH_ucskfd | Atom ratio of dissolved Cd isotopes expressed in conventional DELTA notation referenced to {NIST3108} | per mil |
SD1_Cd_114_110_D_DELTA_FISH_ucskfd | One standard deviation of Cd_114_110_D_DELTA_FISH_ucskfd | per mil |
Flag_Cd_114_110_D_DELTA_FISH_ucskfd | Quality flag for Cd_114_110_D_DELTA_FISH_ucskfd | unitless |
Fe_56_54_D_DELTA_FISH_wrbvdp | Atom ratio of dissolved Fe isotopes expressed in conventional DELTA notation referenced to {IRMM-14} | per mil |
SD1_Fe_56_54_D_DELTA_FISH_wrbvdp | One standard deviation of Fe_56_54_D_DELTA_FISH_wrbvdp | per mil |
Flag_Fe_56_54_D_DELTA_FISH_wrbvdp | Quality flag for Fe_56_54_D_DELTA_FISH_wrbvdp | unitless |
Zn_66_64_D_DELTA_FISH_g3lhnv | Atom ratio of dissolved Zn isotopes expressed in conventional DELTA notation referenced to {Lyon-JMC} | per mil |
SD1_Zn_66_64_D_DELTA_FISH_g3lhnv | One standard deviation of Zn_66_64_D_DELTA_FISH_g3lhnv | per mil |
Flag_Zn_66_64_D_DELTA_FISH_g3lhnv | Quality flag for Zn_66_64_D_DELTA_FISH_g3lhnv | unitless |
Co_DL_CONC_FISH_lzzsxs | Concentration of dissolved labile Co | pmol/kg |
SD1_Co_DL_CONC_FISH_lzzsxs | One standard deviation of Co_DL_CONC_FISH_lzzsxs | pmol/kg |
Flag_Co_DL_CONC_FISH_lzzsxs | Quality flag for Co_DL_CONC_FISH_lzzsxs | unitless |
Cr_D_CONC_FISH_j9dj7v | Concentration of dissolved Cr | nmol/kg |
SD1_Cr_D_CONC_FISH_j9dj7v | One standard deviation of Cr_D_CONC_FISH_j9dj7v | nmol/kg |
Flag_Cr_D_CONC_FISH_j9dj7v | Quality flag for Cr_D_CONC_FISH_j9dj7v | unitless |
Cu_D_CONC_FISH_xcukdw | Concentration of dissolved Cu | nmol/kg |
SD1_Cu_D_CONC_FISH_xcukdw | One standard deviation of Cu_D_CONC_FISH_xcukdw | nmol/kg |
Flag_Cu_D_CONC_FISH_xcukdw | Quality flag for Cu_D_CONC_FISH_xcukdw | unitless |
Fe_D_CONC_FISH_y8e2el | Concentration of dissolved Fe | nmol/kg |
SD1_Fe_D_CONC_FISH_y8e2el | One standard deviation of Fe_D_CONC_FISH_y8e2el | nmol/kg |
Flag_Fe_D_CONC_FISH_y8e2el | Quality flag for Fe_D_CONC_FISH_y8e2el | unitless |
Mn_D_CONC_FISH_3wwjj2 | Concentration of dissolved Mn | nmol/kg |
SD1_Mn_D_CONC_FISH_3wwjj2 | One standard deviation of Mn_D_CONC_FISH_3wwjj2 | nmol/kg |
Flag_Mn_D_CONC_FISH_3wwjj2 | Quality flag for Mn_D_CONC_FISH_3wwjj2 | unitless |
Ni_D_CONC_FISH_enkl8x | Concentration of dissolved Ni | nmol/kg |
SD1_Ni_D_CONC_FISH_enkl8x | One standard deviation of Ni_D_CONC_FISH_enkl8x | nmol/kg |
Flag_Ni_D_CONC_FISH_enkl8x | Quality flag for Ni_D_CONC_FISH_enkl8x | unitless |
Pb_D_CONC_FISH_c6jwb2 | Concentration of dissolved Pb | pmol/kg |
SD1_Pb_D_CONC_FISH_c6jwb2 | One standard deviation of Pb_D_CONC_FISH_c6jwb2 | pmol/kg |
Flag_Pb_D_CONC_FISH_c6jwb2 | Quality flag for Pb_D_CONC_FISH_c6jwb2 | unitless |
Sn_D_CONC_FISH_rc5nbn | Concentration of dissolved Sn | pmol/kg |
SD1_Sn_D_CONC_FISH_rc5nbn | One standard deviation of Sn_D_CONC_FISH_rc5nbn | pmol/kg |
Flag_Sn_D_CONC_FISH_rc5nbn | Quality flag for Sn_D_CONC_FISH_rc5nbn | unitless |
Ti_D_CONC_FISH_ntduge | Concentration of dissolved Ti | pmol/kg |
SD1_Ti_D_CONC_FISH_ntduge | One standard deviation of Ti_D_CONC_FISH_ntduge | pmol/kg |
Flag_Ti_D_CONC_FISH_ntduge | Quality flag for Ti_D_CONC_FISH_ntduge | unitless |
Zn_D_CONC_FISH_ir5pu3 | Concentration of dissolved Zn | nmol/kg |
SD1_Zn_D_CONC_FISH_ir5pu3 | One standard deviation of Zn_D_CONC_FISH_ir5pu3 | nmol/kg |
Flag_Zn_D_CONC_FISH_ir5pu3 | Quality flag for Zn_D_CONC_FISH_ir5pu3 | unitless |
Cd_114_110_D_DELTA_BOAT_PUMP_tfq9zw | Atom ratio of dissolved Cd isotopes expressed in conventional DELTA notation referenced to {NIST3108} | per mil |
SD1_Cd_114_110_D_DELTA_BOAT_PUMP_tfq9zw | One standard deviation of Cd_114_110_D_DELTA_BOAT_PUMP_tfq9zw | per mil |
Flag_Cd_114_110_D_DELTA_BOAT_PUMP_tfq9zw | Quality flag for Cd_114_110_D_DELTA_BOAT_PUMP_tfq9zw | unitless |
Fe_56_54_D_DELTA_BOAT_PUMP_da4n4o | Atom ratio of dissolved Fe isotopes expressed in conventional DELTA notation referenced to {IRMM-14} | per mil |
SD1_Fe_56_54_D_DELTA_BOAT_PUMP_da4n4o | One standard deviation of Fe_56_54_D_DELTA_BOAT_PUMP_da4n4o | per mil |
Flag_Fe_56_54_D_DELTA_BOAT_PUMP_da4n4o | Quality flag for Fe_56_54_D_DELTA_BOAT_PUMP_da4n4o | unitless |
Zn_66_64_D_DELTA_BOAT_PUMP_9l1opj | Atom ratio of dissolved Zn isotopes expressed in conventional DELTA notation referenced to {Lyon-JMC} | per mil |
SD1_Zn_66_64_D_DELTA_BOAT_PUMP_9l1opj | One standard deviation of Zn_66_64_D_DELTA_BOAT_PUMP_9l1opj | per mil |
Flag_Zn_66_64_D_DELTA_BOAT_PUMP_9l1opj | Quality flag for Zn_66_64_D_DELTA_BOAT_PUMP_9l1opj | unitless |
Cd_D_CONC_BOAT_PUMP_htmr5y | Concentration of dissolved Cd | nmol/kg |
SD1_Cd_D_CONC_BOAT_PUMP_htmr5y | One standard deviation of Cd_D_CONC_BOAT_PUMP_htmr5y | nmol/kg |
Flag_Cd_D_CONC_BOAT_PUMP_htmr5y | Quality flag for Cd_D_CONC_BOAT_PUMP_htmr5y | unitless |
Co_DL_CONC_BOAT_PUMP_gf1u7n | Concentration of dissolved labile Co | pmol/kg |
SD1_Co_DL_CONC_BOAT_PUMP_gf1u7n | One standard deviation of Co_DL_CONC_BOAT_PUMP_gf1u7n | pmol/kg |
Flag_Co_DL_CONC_BOAT_PUMP_gf1u7n | Quality flag for Co_DL_CONC_BOAT_PUMP_gf1u7n | unitless |
Cu_D_CONC_BOAT_PUMP_ck7ijw | Concentration of dissolved Cu | nmol/kg |
SD1_Cu_D_CONC_BOAT_PUMP_ck7ijw | One standard deviation of Cu_D_CONC_BOAT_PUMP_ck7ijw | nmol/kg |
Flag_Cu_D_CONC_BOAT_PUMP_ck7ijw | Quality flag for Cu_D_CONC_BOAT_PUMP_ck7ijw | unitless |
Fe_D_CONC_BOAT_PUMP_rycfmj | Concentration of dissolved Fe | nmol/kg |
SD1_Fe_D_CONC_BOAT_PUMP_rycfmj | One standard deviation of Fe_D_CONC_BOAT_PUMP_rycfmj | nmol/kg |
Flag_Fe_D_CONC_BOAT_PUMP_rycfmj | Quality flag for Fe_D_CONC_BOAT_PUMP_rycfmj | unitless |
Mn_D_CONC_BOAT_PUMP_2nm9rj | Concentration of dissolved Mn | nmol/kg |
SD1_Mn_D_CONC_BOAT_PUMP_2nm9rj | One standard deviation of Mn_D_CONC_BOAT_PUMP_2nm9rj | nmol/kg |
Flag_Mn_D_CONC_BOAT_PUMP_2nm9rj | Quality flag for Mn_D_CONC_BOAT_PUMP_2nm9rj | unitless |
Ni_D_CONC_BOAT_PUMP_niuxvg | Concentration of dissolved Ni | nmol/kg |
SD1_Ni_D_CONC_BOAT_PUMP_niuxvg | One standard deviation of Ni_D_CONC_BOAT_PUMP_niuxvg | nmol/kg |
Flag_Ni_D_CONC_BOAT_PUMP_niuxvg | Quality flag for Ni_D_CONC_BOAT_PUMP_niuxvg | unitless |
Pb_D_CONC_BOAT_PUMP_h8bloa | Concentration of dissolved Pb | pmol/kg |
SD1_Pb_D_CONC_BOAT_PUMP_h8bloa | One standard deviation of Pb_D_CONC_BOAT_PUMP_h8bloa | pmol/kg |
Flag_Pb_D_CONC_BOAT_PUMP_h8bloa | Quality flag for Pb_D_CONC_BOAT_PUMP_h8bloa | unitless |
Zn_D_CONC_BOAT_PUMP_ngi8i2 | Concentration of dissolved Zn | nmol/kg |
SD1_Zn_D_CONC_BOAT_PUMP_ngi8i2 | One standard deviation of Zn_D_CONC_BOAT_PUMP_ngi8i2 | nmol/kg |
Flag_Zn_D_CONC_BOAT_PUMP_ngi8i2 | Quality flag for Zn_D_CONC_BOAT_PUMP_ngi8i2 | unitless |
Ce_D_CONC_BOAT_PUMP_uuyine | Concentration of dissolved Ce | pmol/kg |
SD1_Ce_D_CONC_BOAT_PUMP_uuyine | One standard deviation of Ce_D_CONC_BOAT_PUMP_uuyine | pmol/kg |
Flag_Ce_D_CONC_BOAT_PUMP_uuyine | Quality flag for Ce_D_CONC_BOAT_PUMP_uuyine | unitless |
Pr_D_CONC_BOAT_PUMP_fldqv8 | Concentration of dissolved Pr | pmol/kg |
SD1_Pr_D_CONC_BOAT_PUMP_fldqv8 | One standard deviation of Pr_D_CONC_BOAT_PUMP_fldqv8 | pmol/kg |
Flag_Pr_D_CONC_BOAT_PUMP_fldqv8 | Quality flag for Pr_D_CONC_BOAT_PUMP_fldqv8 | unitless |
Nd_D_CONC_BOAT_PUMP_zkkda1 | Concentration of dissolved Nd | pmol/kg |
SD1_Nd_D_CONC_BOAT_PUMP_zkkda1 | One standard deviation of Nd_D_CONC_BOAT_PUMP_zkkda1 | pmol/kg |
Flag_Nd_D_CONC_BOAT_PUMP_zkkda1 | Quality flag for Nd_D_CONC_BOAT_PUMP_zkkda1 | unitless |
Sm_D_CONC_BOAT_PUMP_rk0nrk | Concentration of dissolved Sm | pmol/kg |
SD1_Sm_D_CONC_BOAT_PUMP_rk0nrk | One standard deviation of Sm_D_CONC_BOAT_PUMP_rk0nrk | pmol/kg |
Flag_Sm_D_CONC_BOAT_PUMP_rk0nrk | Quality flag for Sm_D_CONC_BOAT_PUMP_rk0nrk | unitless |
Eu_D_CONC_BOAT_PUMP_qmc5xl | Concentration of dissolved Eu | pmol/kg |
SD1_Eu_D_CONC_BOAT_PUMP_qmc5xl | One standard deviation of Eu_D_CONC_BOAT_PUMP_qmc5xl | pmol/kg |
Flag_Eu_D_CONC_BOAT_PUMP_qmc5xl | Quality flag for Eu_D_CONC_BOAT_PUMP_qmc5xl | unitless |
Gd_D_CONC_BOAT_PUMP_6y7mgq | Concentration of dissolved Gd | pmol/kg |
SD1_Gd_D_CONC_BOAT_PUMP_6y7mgq | One standard deviation of Gd_D_CONC_BOAT_PUMP_6y7mgq | pmol/kg |
Flag_Gd_D_CONC_BOAT_PUMP_6y7mgq | Quality flag for Gd_D_CONC_BOAT_PUMP_6y7mgq | unitless |
Yb_TD_CONC_BOAT_PUMP_3ntipi | Concentration of total dissolved Yb | pmol/kg |
SD1_Yb_TD_CONC_BOAT_PUMP_3ntipi | One standard deviation of Yb_TD_CONC_BOAT_PUMP_3ntipi | pmol/kg |
Flag_Yb_TD_CONC_BOAT_PUMP_3ntipi | Quality flag for Yb_TD_CONC_BOAT_PUMP_3ntipi | unitless |
La_D_CONC_BOAT_PUMP_xqzxoe | Concentration of dissolved La | pmol/kg |
SD1_La_D_CONC_BOAT_PUMP_xqzxoe | One standard deviation of La_D_CONC_BOAT_PUMP_xqzxoe | pmol/kg |
Flag_La_D_CONC_BOAT_PUMP_xqzxoe | Quality flag for La_D_CONC_BOAT_PUMP_xqzxoe | unitless |
Dataset-specific Instrument Name | |
Generic Instrument Name | GO-FLO Bottle |
Generic Instrument Description | GO-FLO bottle cast used to collect water samples for pigment, nutrient, plankton, etc. The GO-FLO sampling bottle is specially designed to avoid sample contamination at the surface, internal spring contamination, loss of sample on deck (internal seals), and exchange of water from different depths. |
Dataset-specific Instrument Name | Thermo Fisher Element 2 HR-ICP-MS |
Generic Instrument Name | Inductively Coupled Plasma Mass Spectrometer |
Dataset-specific Description | Metal concentrations were measured on a Thermo Fisher Element 2 HR-ICP-MS. |
Generic Instrument Description | An ICP Mass Spec is an instrument that passes nebulized samples into an inductively-coupled gas plasma (8-10000 K) where they are atomized and ionized. Ions of specific mass-to-charge ratios are quantified in a quadrupole mass spectrometer. |
Dataset-specific Instrument Name | |
Generic Instrument Name | Pump |
Generic Instrument 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 |
Dataset-specific Instrument Name | seaFAST-pico metal extraction system |
Generic Instrument Name | SeaFAST Automated Preconcentration System |
Dataset-specific Description | Concentration measurements were made using an offline adaptation of the seaFAST-pico metal extraction system (Elemental Scientific Inc.). |
Generic Instrument Description | The seaFAST is an automated sample introduction system for analysis of seawater and other high matrix samples for analyses by ICPMS (Inductively Coupled Plasma Mass Spectrometry). |
Website | |
Platform | USCGC Healy |
Report | |
Start Date | 2015-08-09 |
End Date | 2015-10-12 |
Description | Arctic transect encompassing Bering and Chukchi Shelves and the Canadian, Makarov and Amundsen sub-basins of the Arctic Ocean. The transect started in the Bering Sea (60°N) and traveled northward across the Bering Shelf, through the Bering Strait and across the Chukchi shelf, then traversing along 170-180°W across the Alpha-Mendeleev and Lomonosov Ridges to the North Pole (Amundsen basin, 90°N), and then back southward along ~150°W to terminate on the Chukchi Shelf (72°N).
Additional cruise information is available in the GO-SHIP Cruise Report (PDF) and from the Rolling Deck to Repository (R2R): https://www.rvdata.us/search/cruise/HLY1502 |
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.
NSF Award Abstract:
In this project, a group of investigators participating in the 2015 U.S.GEOTRACES Arctic expedition will study the chemistry and regional distribution of seven trace metals in the Arctic Ocean: iron, manganese, zinc, cadmium, copper, nickel, and cobalt. These so-called bioactive metals are of special scientific interest because of their role in multiple biogeochemical processes including biological production of the sea and the planetary cycling of carbon and nitrogen. Like other multinational initiatives in the International GEOTRACES Program, the goals of the U.S. Arctic expedition are 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. This study in particular would contribute to our understanding of the sources and sinks of these seven bioactive metals as well as examine their interaction with biological processes. The project will focus on two major overarching research questions: (1) What are the sources and sinks for micronutrients and macronutrients in the Arctic? And (2) How does bioactive trace element nutrition influence productivity and species composition in the Arctic, and conversely, how do biological processes influence the cycling of these metals? In terms of broader impacts, the PIs on this project will be actively involved in educational outreach efforts, and the research team itself will include two postdoctoral researchers and a graduate student. The team leaders also plan to publish a children's ocean education book based on the expedition with the aim of generating next-generation excitement about modern ocean science
With regard to technical specifics, the research team will measure the dissolved seawater phases of the bioactive metals Fe, Mn, Zn, Cd, Cu, Ni, and Co, the dissolved stable metal isotopes 56Fe, 66Zn, and 114Cd, and the chemical speciation of Co. The recent development of methods for multi-element and multi-isotope analysis methods, in conjunction with the high-resolution sampling of the GEOTRACES program, make it possible to efficiently produce this dense dataset of metals and metal isotopes. This will be a team-based approach to achieve comprehensive duplication for analysis of the key parameters of dissolved metal concentrations. Each investigator will further conduct specialized additional measurements of metal isotopes and dissolved Co (which has unique analytical challenges) and Co speciation. Interpretation of these rich datasets would will be directed toward determination of sources and sinks as well as their ecological stoichiometry, in collaboration with other U.S.GEOTRACES participants measuring synergistic parameters. Together, this Arctic Ocean bioactive trace metal dataset is expected to provide an important contribution to the understanding of micronutrient roles in Arctic biogeochemical processes. These results should also be highly relevant to research studies of the ancient ocean, in which trace-metal analyses are commonly used to trace a wide variety of processes including paleo-ocean circulation and biological productivity. Finally, understanding the sources and sinks for elements in the modern ocean is key to predicting how the concentrations of bioactive elements might vary in a changing future climate.
GEOTRACES is a SCOR sponsored program; and funding for program infrastructure development is provided by the U.S. National Science Foundation.
GEOTRACES gained momentum following a special symposium, S02: Biogeochemical cycling of trace elements and isotopes in the ocean and applications to constrain contemporary marine processes (GEOSECS II), at a 2003 Goldschmidt meeting convened in Japan. The GEOSECS II acronym referred to the Geochemical Ocean Section Studies To determine full water column distributions of selected trace elements and isotopes, including their concentration, chemical speciation, and physical form, along a sufficient number of sections in each ocean basin to establish the principal relationships between these distributions and with more traditional hydrographic parameters;
* To evaluate the sources, sinks, and internal cycling of these species and thereby characterize more completely the physical, chemical and biological processes regulating their distributions, and the sensitivity of these processes to global change; and
* To understand the processes that control the concentrations of geochemical species used for proxies of the past environment, both in the water column and in the substrates that reflect the water column.
GEOTRACES will be global in scope, consisting of ocean sections complemented by regional process studies. Sections and process studies will combine fieldwork, laboratory experiments and modelling. Beyond realizing the scientific objectives identified above, a natural outcome of this work will be to build a community of marine scientists who understand the processes regulating trace element cycles sufficiently well to exploit this knowledge reliably in future interdisciplinary studies.
Expand "Projects" below for information about and data resulting from individual US GEOTRACES research projects.
Funding Source | Award |
---|---|
NSF Division of Ocean Sciences (NSF OCE) |