“Happy Holidays! BCO-DMO will be on break from 23 December to 2 January 2025. Submissions and questions will still be accepted, however our responses may be delayed during this time.”

Parameter: N2Ar

Dataset: 
LabSea_Hamme et al 2017
Parameter: 
dissolved noble gas concentration
Master parameters information
Short Name:
 diss_noble_gas_conc
Short Description:
 dissolved noble gas concentration
Official Name:
 diss_noble_gas_conc
No Data Value:
 nd
Description:
 

Dissolved noble gas concentration in the water column. Refer to dataset for element name and units.

Dataset-parameters information
Supplied Name: 
N2Ar
Supplied Units: 
unitless
Conversion Necessary: 
no
No Data Value: 
NaN
Description: 

N2/Ar ratio determined by mass spectrometry with no units. Samples from 2007 were analyzed at Scripps Institution of Oceanography by purification with heated copper to remove oxygen following T. Kobashi; J.P. Severinghaus and K. Kawamura (2008) "Argon and nitrogen isotopes of trapped air in the GISP2 ice core during the Holocene epoch (0-11500 B.P.): Methodology and implications for gas loss processes" Geochim. Cosmochim. Acta 72 (19):4675-4686; doi:10.1016/j.gca.2008.07.006. Measurements from later years were analyzed at University of Victoria following Emerson et al. (1999) "Accurate measurement of O2, N2, and Ar gases in water and the solubility of N2" Marine Chemistry 64:337-347. Standard gases are calibrated relative to air with assumed dry mole fractions of 9.34e-3 for Ar and 0.78084 for N2.