Seth G. John

Affiliation: University of Southern California (USC)

Address: []

Orcid: 0000-0002-8257-626X

Project: U.S. GEOTRACES North Atlantic Transect (GA03) (2 datasets)

Dataset	Latest Version Date	Current State
Dissolved Fe, Zn and Cd concentrations and isotope ratios from R/V Knorr KN199-04, KN204-01 in the subtropical North Atlantic Ocean from 2010-2011 (U.S. GEOTRACES NAT project) Role: Principal Investigator	2016-11-30	Final no updates expected
Particulate Fe isotopes (d56Fe, labile d56Fe, labile[Fe], [Cd], [Ba], and [P]) from R/V Knorr cruises KN199-04, KN204-01 in the Subtropical northern Atlantic Ocean from 2010-2011 (U.S. GEOTRACES NAT project) Roles: Principal Investigator, Contact	2013-11-08	Final no updates expected

Project: U.S. GEOTRACES East Pacific Zonal Transect (GP16) (2 datasets)

Dataset	Latest Version Date	Current State
Dissolved (0.4 micron filtered) Fe, Zn and Cd isotope ratios and concentrations across GEOTRACES-EPZT, from cruise TN303, 2013 Role: Principal Investigator	2016-06-21	Final no updates expected
Particulate iron (pFe) isotope concentrations from the GEOTRACES EPZT cruise (R/V Thomas G. Thompson TN303) in the Eastern Tropical Pacific from October to December 2013 Role: Principal Investigator	2016-12-09	Final no updates expected

Project: Trace-metal isotopes in Atlantic seawater and particles from Geotraces transects A03 and A10 (1 datasets)

Dataset	Latest Version Date	Current State
Dissolved Fe stable isotope ratios and concentrations collected from the RRS Discovery (D357) and RRS James Cook (JC068) from the North Atlantic in 2010-2011 Role: Principal Investigator	2016-11-30	Final no updates expected

Project: U.S. Arctic GEOTRACES Study (GN01) (1 datasets)

Dataset	Latest Version Date	Current State
Concentrations and stable isotope ratios of Fe, Zn, and Cd from the US GEOTRACES Arctic cruise GN01 (HLY1502) from August to October 2015 Role: Principal Investigator	2020-05-20	Final no updates expected

Project: GEOTRACES Pacific section: Dissolved Fe, Cd, and Zn isotopes (2 datasets)

Dataset	Latest Version Date	Current State
Dissolved (0.4 micron filtered) Fe, Zn and Cd isotope ratios and concentrations across GEOTRACES-EPZT, from cruise TN303, 2013 Role: Principal Investigator	2016-06-21	Final no updates expected
Particulate iron (pFe) isotope concentrations from the GEOTRACES EPZT cruise (R/V Thomas G. Thompson TN303) in the Eastern Tropical Pacific from October to December 2013 Role: Principal Investigator	2016-12-09	Final no updates expected

Project: Experimental constraints on marine Fe isotope effects - Biology, ligands, and particles (2 datasets)

Dataset	Latest Version Date	Current State
Particulate iron (pFe) isotope concentrations from the GEOTRACES EPZT cruise (R/V Thomas G. Thompson TN303) in the Eastern Tropical Pacific from October to December 2013 Role: Principal Investigator	2016-12-09	Final no updates expected
Experimental determination of Fe isotope effect for reduction from Fe(III) to Fe(II) Role: Principal Investigator	2019-05-09	Data not available

Project: US GEOTRACES Pacific Meridional Transect (GP15) (6 datasets)

Dataset	Latest Version Date	Current State
Dissolved concentrations and stable isotope ratios of Fe, Zn, and Cd from Leg 1 (Seattle, WA to Hilo, HI) of the US GEOTRACES Pacific Meridional Transect (PMT) cruise (GP15, RR1814) on R/V Roger Revelle from September to October 2018 Role: Co-Principal Investigator	2022-12-06	Final no updates expected
Dissolved concentrations and stable isotope ratios of Fe, Zn, and Cd from Leg 2 (Hilo, HI to Papeete, French Polynesia) of the US GEOTRACES Pacific Meridional Transect (PMT) cruise (GP15, RR1815) on R/V Roger Revelle from October to November 2018 Role: Co-Principal Investigator	2022-12-06	Final no updates expected
Dissolved concentrations of nickel and copper from bottle samples collected on Leg 1 (Seattle, WA to Hilo, HI) of the US GEOTRACES Pacific Meridional Transect (PMT) cruise (GP15, RR1814) on R/V Roger Revelle from September to October 2018 Role: Principal Investigator	2022-12-15	Final with updates expected
Dissolved concentrations of nickel and copper from bottle samples collected on Leg 2 (Hilo, HI to Papeete, French Polynesia) of the US GEOTRACES Pacific Meridional Transect (PMT) cruise (GP15, RR1815) on R/V Roger Revelle from October to November 2018 Role: Principal Investigator	2022-12-15	Final with updates expected
Concentrations and stable isotopes of total and deionized water-soluble Fe, Zn, and Cd bulk aerosols and Fe concentrations and stable isotopes of coarse and fine aerosols from Leg 1 of the US GEOTRACES PMT cruise (GP15, RR1814) from Sept to Oct 2018 Role: Co-Principal Investigator	2024-09-23	Final no updates expected
Concentrations and stable isotopes of total and deionized water-soluble Fe, Zn, and Cd bulk aerosols and Fe concentrations and stable isotopes of coarse and fine aerosols from Leg 2 of the US GEOTRACES PMT cruise (GP15, RR1814) from Oct to Nov 2018 Role: Co-Principal Investigator	2024-09-24	Final no updates expected

Project: Collaborative Research: GEOTRACES Arctic Section: Marine Cycling of Bioactive Trace Metals in the Arctic Ocean (1 datasets)

Dataset	Latest Version Date	Current State
Concentrations and stable isotope ratios of Fe, Zn, and Cd from the US GEOTRACES Arctic cruise GN01 (HLY1502) from August to October 2015 Role: Principal Investigator	2020-05-20	Final no updates expected

Project: The role of cryptic nutrient cycling within sinking particles on trace element transport in oxygen minimum zones (2 datasets)

Dataset	Latest Version Date	Current State
Isotopic composition and concentrations of dissolved and particulate nickel, cadmium, iron, zinc, and copper from the Eastern Tropical North Pacific Ocean on R/V Revelle cruise RR1804 and on R/V Sikuliaq cruise SKQ201617S Role: Principal Investigator	2021-02-25	Final no updates expected
Concentrations of dissolved cadmium, nickel, manganese, lanthanum, cerium, praseodymium, and neodymium from the Eastern Tropical North Pacific Ocean on R/V Revelle cruise RR1804-1805 (OMZ Nutrient Cycling project) Role: Principal Investigator	2022-03-25	Final no updates expected

Project: Collaborative Research: US GEOTRACES PMT: Quantification of Atmospheric Deposition and Trace Element Fractional Solubility (2 datasets)

Dataset	Latest Version Date	Current State
Concentrations and stable isotopes of total and deionized water-soluble Fe, Zn, and Cd bulk aerosols and Fe concentrations and stable isotopes of coarse and fine aerosols from Leg 1 of the US GEOTRACES PMT cruise (GP15, RR1814) from Sept to Oct 2018 Role: Co-Principal Investigator	2024-09-23	Final no updates expected
Concentrations and stable isotopes of total and deionized water-soluble Fe, Zn, and Cd bulk aerosols and Fe concentrations and stable isotopes of coarse and fine aerosols from Leg 2 of the US GEOTRACES PMT cruise (GP15, RR1814) from Oct to Nov 2018 Role: Co-Principal Investigator	2024-09-24	Final no updates expected

Project: Collaborative research: US GEOTRACES PMT: Trace-metal concentrations and stable isotopes in the North Pacific (6 datasets)

Dataset	Latest Version Date	Current State
Dissolved concentrations and stable isotope ratios of Fe, Zn, and Cd from Leg 1 (Seattle, WA to Hilo, HI) of the US GEOTRACES Pacific Meridional Transect (PMT) cruise (GP15, RR1814) on R/V Roger Revelle from September to October 2018 Role: Co-Principal Investigator	2022-12-06	Final no updates expected
Dissolved concentrations and stable isotope ratios of Fe, Zn, and Cd from Leg 2 (Hilo, HI to Papeete, French Polynesia) of the US GEOTRACES Pacific Meridional Transect (PMT) cruise (GP15, RR1815) on R/V Roger Revelle from October to November 2018 Role: Co-Principal Investigator	2022-12-06	Final no updates expected
Dissolved concentrations of nickel and copper from bottle samples collected on Leg 1 (Seattle, WA to Hilo, HI) of the US GEOTRACES Pacific Meridional Transect (PMT) cruise (GP15, RR1814) on R/V Roger Revelle from September to October 2018 Role: Principal Investigator	2022-12-15	Final with updates expected
Dissolved concentrations of nickel and copper from bottle samples collected on Leg 2 (Hilo, HI to Papeete, French Polynesia) of the US GEOTRACES Pacific Meridional Transect (PMT) cruise (GP15, RR1815) on R/V Roger Revelle from October to November 2018 Role: Principal Investigator	2022-12-15	Final with updates expected
Concentrations and stable isotopes of total and deionized water-soluble Fe, Zn, and Cd bulk aerosols and Fe concentrations and stable isotopes of coarse and fine aerosols from Leg 1 of the US GEOTRACES PMT cruise (GP15, RR1814) from Sept to Oct 2018 Role: Co-Principal Investigator	2024-09-23	Final no updates expected
Concentrations and stable isotopes of total and deionized water-soluble Fe, Zn, and Cd bulk aerosols and Fe concentrations and stable isotopes of coarse and fine aerosols from Leg 2 of the US GEOTRACES PMT cruise (GP15, RR1814) from Oct to Nov 2018 Role: Co-Principal Investigator	2024-09-24	Final no updates expected