William M. Smethie Jr.

Affiliation:

Lamont-Doherty Earth Observatory (LDEO)

Address:

Lamont-Doherty Earth Observatory
PO Box 1000
Palisades, NY
USA 10964-8000

ORCiD:

0000-0001-7580-8918

Activities reported for William M. Smethie Jr.:

Program coordination

None

Project coordination

US GEOTRACES Arctic Section - Water mass composition, circulation and mean residence times derived from measurements of natural and manmade tracers (GT-Arctic Tracer Circulation)	Co-Principal Investigator
An Inverse and Forward Global Modeling Synthesis of Noble Gases to Better Quantify Biogeochemical Cycles (Noble gas modeling)	Principal Investigator, Contact
U.S. GEOTRACES North Atlantic Section: CFC and SF6 Measurements (GT NAT CFC and SF6)	Principal Investigator, Contact
RAPID: Continuation of U.S. GEOTRACES North Atlantic Section: CFC and SF6 Measurements (GT NAT RAPID CFC SF6)	Principal Investigator, Contact
Collaborative Research: Completing a 10-Year Record of Deep Western Boundary Current Observations at Line W; A Contribution to the Atlantic Meridional Overturning Circulation Study (DWBC Obs Line W)	Principal Investigator, Contact
EAGER: Measurement of Sulfur Hexafluoride and Argon-39 on Archived Samples from the Atlantic Ocean Collected in the 1980s (archived atlantic ocean samples)	Principal Investigator, Contact
Collaborative Research: Probing the Ventilation Efficiency of the Deep Ocean with Conservative Dissolved Gas Tracers in Archived Samples (TTO NGs and O2)	Principal Investigator

Deployment coordination

Deployment	Synonyms	Platform	Role
KN166-11	316N20020530, 316N166_11, Nordic02	Knorr	Chief Scientist

Datasets

Project: Collaborative Research: Novel constraints on air-sea gas exchange and deep ocean ventilation from high-precision noble gas isotope measurements in seawater

Dataset	Version Date	Current State
Measurements of Kr/Ar and N2/Ar ratios in stored dissolved gas samples collected in 1981 through the Transient Tracers in the Ocean (TTO) program North Atlantic Survey (NAS) Co-Principal Investigator	2023-02-23	Final no updates expected
Elemental and isotopic noble gas ratios from the Bermuda Atlantic Time-series (BATS) on cruise 10391 on R/V Atlantic Explorer (AE2208) from 30 April 2022 to 05 May 2022 Co-Principal Investigator	2023-02-22	Final no updates expected
Model simulations of elemental and isotopic heavy noble gas ratios using the Transport Matrix Method (TMM) Co-Principal Investigator	2023-02-21	Final no updates expected

Project: Collaborative Research: Probing the Ventilation Efficiency of the Deep Ocean with Conservative Dissolved Gas Tracers in Archived Samples

Dataset	Version Date	Current State
Measurements of Kr/Ar and N2/Ar ratios in stored dissolved gas samples collected in 1981 through the Transient Tracers in the Ocean (TTO) program North Atlantic Survey (NAS) Co-Principal Investigator	2023-02-23	Final no updates expected
Elemental and isotopic noble gas ratios from the Bermuda Atlantic Time-series (BATS) on cruise 10391 on R/V Atlantic Explorer (AE2208) from 30 April 2022 to 05 May 2022 Co-Principal Investigator	2023-02-22	Final no updates expected
Model simulations of elemental and isotopic heavy noble gas ratios using the Transport Matrix Method (TMM) Co-Principal Investigator	2023-02-21	Final no updates expected

Project: Collaborative Research: Completing a 10-Year Record of Deep Western Boundary Current Observations at Line W; A Contribution to the Atlantic Meridional Overturning Circulation Study

Dataset	Version Date	Current State
Mean ventilation age reported for 7 regions of the Atlantic based on samples collected from R/V Knorr cruises KN199-04 and KN204-01 during 2010-2011 Principal Investigator	2020-05-07	Final no updates expected
The fraction of water last ventilated in a given region in a time less than or equal to 39 years ago based on samples collected from R/V Knorr cruises KN199-04 and KN204-01 during 2010-2011 Principal Investigator	2020-05-07	Final no updates expected
The fraction of water last ventilated in a given region in a time less than or equal to 160 years ago based on samples collected from R/V Knorr cruises KN199-04 and KN204-01 during 2010-2011 Principal Investigator	2020-05-07	Final no updates expected
The fraction of water last ventilated in a given region regardless of the time elapsed since ventilation (in practice, younger than 4000 years) based on samples collected from R/V Knorr cruises KN199-04 and KN204-01 during 2010-2011 Principal Investigator	2020-05-06	Final no updates expected

Project: RAPID: Continuation of U.S. GEOTRACES North Atlantic Section: CFC and SF6 Measurements

Dataset	Version Date	Current State
Mean ventilation age reported for 7 regions of the Atlantic based on samples collected from R/V Knorr cruises KN199-04 and KN204-01 during 2010-2011 Principal Investigator	2020-05-07	Final no updates expected
The fraction of water last ventilated in a given region in a time less than or equal to 39 years ago based on samples collected from R/V Knorr cruises KN199-04 and KN204-01 during 2010-2011 Principal Investigator	2020-05-07	Final no updates expected
The fraction of water last ventilated in a given region in a time less than or equal to 160 years ago based on samples collected from R/V Knorr cruises KN199-04 and KN204-01 during 2010-2011 Principal Investigator	2020-05-07	Final no updates expected
The fraction of water last ventilated in a given region regardless of the time elapsed since ventilation (in practice, younger than 4000 years) based on samples collected from R/V Knorr cruises KN199-04 and KN204-01 during 2010-2011 Principal Investigator	2020-05-06	Final no updates expected

Project: U.S. GEOTRACES North Atlantic Section: CFC and SF6 Measurements

Dataset	Version Date	Current State
Mean ventilation age reported for 7 regions of the Atlantic based on samples collected from R/V Knorr cruises KN199-04 and KN204-01 during 2010-2011 Principal Investigator	2020-05-07	Final no updates expected
The fraction of water last ventilated in a given region in a time less than or equal to 39 years ago based on samples collected from R/V Knorr cruises KN199-04 and KN204-01 during 2010-2011 Principal Investigator	2020-05-07	Final no updates expected
The fraction of water last ventilated in a given region in a time less than or equal to 160 years ago based on samples collected from R/V Knorr cruises KN199-04 and KN204-01 during 2010-2011 Principal Investigator	2020-05-07	Final no updates expected
The fraction of water last ventilated in a given region regardless of the time elapsed since ventilation (in practice, younger than 4000 years) based on samples collected from R/V Knorr cruises KN199-04 and KN204-01 during 2010-2011 Principal Investigator	2020-05-06	Final no updates expected
Concentrations of CFC-11, CFC-12, CFC-113 and SF6 in seawater from R/V Knorr KN199-04 (GT10), KN204-01 (GT11) in the subtropical northern Atlantic Ocean from 2010-2011 (U.S. GEOTRACES NAT project) Principal Investigator, Contact	2014-06-16	Final no updates expected

Project: US GEOTRACES Arctic Section - Water mass composition, circulation and mean residence times derived from measurements of natural and manmade tracers

Dataset	Version Date	Current State
Concentrations of CFC-11, CFC-12, CFC-113 and SF6 in seawater from the GEOTRACES-Arctic program, aboard RV/HLY-1502, 2015. Principal Investigator	2016-10-24	Final no updates expected

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

Dataset	Version Date	Current State
Concentrations of CFC-11, CFC-12, CFC-113 and SF6 in seawater from the GEOTRACES-Arctic program, aboard RV/HLY-1502, 2015. Principal Investigator	2016-10-24	Final no updates expected

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

Dataset	Version Date	Current State
Mean ventilation age reported for 7 regions of the Atlantic based on samples collected from R/V Knorr cruises KN199-04 and KN204-01 during 2010-2011 Principal Investigator	2020-05-07	Final no updates expected
The fraction of water last ventilated in a given region in a time less than or equal to 39 years ago based on samples collected from R/V Knorr cruises KN199-04 and KN204-01 during 2010-2011 Principal Investigator	2020-05-07	Final no updates expected
The fraction of water last ventilated in a given region in a time less than or equal to 160 years ago based on samples collected from R/V Knorr cruises KN199-04 and KN204-01 during 2010-2011 Principal Investigator	2020-05-07	Final no updates expected
The fraction of water last ventilated in a given region regardless of the time elapsed since ventilation (in practice, younger than 4000 years) based on samples collected from R/V Knorr cruises KN199-04 and KN204-01 during 2010-2011 Principal Investigator	2020-05-06	Final no updates expected
Concentrations of CFC-11, CFC-12, CFC-113 and SF6 in seawater from R/V Knorr KN199-04 (GT10), KN204-01 (GT11) in the subtropical northern Atlantic Ocean from 2010-2011 (U.S. GEOTRACES NAT project) Principal Investigator, Contact	2014-06-16	Final no updates expected

Status message

Database

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William M. Smethie Jr.

Activities reported for William M. Smethie Jr.: