Mark A. Altabet

Affiliation:

Address:

706 S. Rodney French Blvd
New Bedford, MA
USA 02067

ORCiD:

Program coordination

None

Project coordination

The Role of Regenerated Nitrogen for Rocky Shore Productivity (Regenerated Nitrogen)	Principal Investigator
Microbial associations in zooplankton: significance for the marine nitrogen cycle (Microbial associations in zooplankton)	Co-Principal Investigator
GEOTRACES Peru-Tahiti Nitrogen Isotope Measurements (EPZT Nitrogen Isotopes)	Principal Investigator
Collaborative Research: Autonomous Lagrangian Floats for Oxygen Minimum Zone Biogeochemistry (OMZ Biogeochemistry Floats)	Principal Investigator, Contact
Collaborative Research: GEOTRACES Arctic Ocean section-Constraining Nitrogen Cycling in the western Arctic Ocean. (US GEOTRACES Arctic Nitrogen Flux)	Principal Investigator
Collaborative research: Using individual amino acids N isotopes in sinking particles and surficial sediments to reconstruct euphotic zone N sources and trophic structure (Amino Acids N Isotopes)	Principal Investigator
Collaborative Research: Did the SE Pacific Gyre become a Hot Spot for N2 Fixation during Dusty Glacial Conditions? (N2 Fixation Glacial Dust Pacific Gyre)	Principal Investigator, Contact
Collaborative Research: Multiyear autonomous measurement of N-loss in the ETNP ODZ (N-loss in the ETNP ODZ)	Principal Investigator
Collaborative Research: Phylogenetic and Physiological Characterization of Amino Acid Nitrogen Isotopes in Phytoplankton (AA-N isotopes in Phytoplankton)	Co-Principal Investigator

Deployment coordination

Deployment	Synonyms	Platform	Role
CB942		Clifford A. Barnes	Chief Scientist
NH1410	OMZoMBiE 2, OMZ Floats	New Horizon	Co-Chief Scientist
SR2114		Sally Ride	Chief Scientist

Datasets

Project: Collaborative Research: Did the SE Pacific Gyre become a Hot Spot for N2 Fixation during Dusty Glacial Conditions?

Dataset	Version Date	Current State
Radiocarbon dating of archived sediment cores in the Southeast Pacific from 1960 to 2000 Principal Investigator, Contact	2023-01-12	Final no updates expected

Project: Collaborative Research: GEOTRACES Arctic Ocean section-Constraining Nitrogen Cycling in the western Arctic Ocean.

Dataset	Version Date	Current State
N2 gas concentration in excess of saturation determined by N2:Ar ratiometry from samples collected in the Bering Sea, Chukchi Sea, and Western Arctic on cruise HLY1702 from August to September 2017 Principal Investigator	2020-05-20	Final no updates expected

Project: Collaborative Research: Autonomous Lagrangian Floats for Oxygen Minimum Zone Biogeochemistry

Dataset	Version Date	Current State
Vertical profiles of N2 gas concentrations in excess of equilibrium values along with the isotopic composition of total N2, NO3- and NO2- from R/V New Horizon cruise NH1410 in the Eastern Tropical North Pacific from May to June 2014 Principal Investigator	2017-06-20	Final no updates expected

Project: GEOTRACES Peru-Tahiti Nitrogen Isotope Measurements

Dataset	Version Date	Current State
Nitrate isotope data from R/V Thomas G. Thompson cruise TN303 in the Eastern Tropical Pacific in 2013 (U.S. GEOTRACES EPZT project) Co-Principal Investigator	2016-06-24	Final no updates expected

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

Dataset	Version Date	Current State
Nitrate isotope data from R/V Thomas G. Thompson cruise TN303 in the Eastern Tropical Pacific in 2013 (U.S. GEOTRACES EPZT project) Co-Principal Investigator	2016-06-24	Final no updates expected

Project: The Role of Regenerated Nitrogen for Rocky Shore Productivity

Dataset	Version Date	Current State
Macroalgal contribution to NH4+ removal in tidepools from Cape Flattery, WA from 2010-2011 (Regenerated Nitrogen project) Co-Principal Investigator	2014-11-04	Final no updates expected
Natural abundance of nitrogen and carbon on filters from Cape Flattery, WA from 2010-2011 (Regenerated Nitrogen project) Co-Principal Investigator	2014-11-04	Final no updates expected
Content of nitrogen and carbon in tracer filters from Cape Flattery, WA from 2010-2011 (Regenerated Nitrogen project) Co-Principal Investigator	2014-01-24	Final no updates expected
Ammonium levels in incubated bottles in tidepools from Cape Flattery, WA from 2010-2011 (Regenerated Nitrogen project) Co-Principal Investigator	2014-11-04	Final no updates expected
Seawater and filter sample nitrogen and carbon isotopes from coastal and off-shore sites from multiple cruises in the coastal Washington, 2009-2012 (Regenerated Nitrogen project) Co-Principal Investigator	2014-03-20	Final no updates expected
Ammonium in tidepools with and without mussels from Cape Flattery, WA from 2010-2011 (Regenerated Nitrogen project) Co-Principal Investigator	2014-11-04	Final no updates expected

Project: Southern Ocean Iron Experiment

Dataset	Version Date	Current State
Particulate Organic Matter (POM) from R/V Melville, R/V Roger Revelle cruises COOK19MV, DRFT08RR from the Southern Ocean, south of New Zealand in 2002 (SOFeX project) Principal Investigator	2007-04-01	Final no updates expected

Project: U.S. JGOFS Antarctic Environment and Southern Ocean Process Study

Dataset	Version Date	Current State
Natural Nitrogen and Carbon stable isotopic composition, underway data from RVIB Nathaniel B. Palmer and R/V Roger Revelle cruises in the Southern Ocean, 1997-1998 (U.S. JGOFS AESOPS project) Principal Investigator	2002-10-02	Final no updates expected
Natural nitrogen and carbon stable isotopic composition from RVIB Nathaniel B. Palmer and R/V Roger Revelle cruises in the Southern Ocean, 1997-1998 (U.S. JGOFS AESOPS project) Principal Investigator	2002-10-02	Final no updates expected

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