Metadata: 15N tracer incubations for N2 fixation rate measurements
Data entry related to the OCB Nitrogen Fixation Working Group - more info here: https://www.us-ocb.org/n-fixation-working-group/
Email address *
Location/Cruise ID *
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Date (enter range as text, e.g. 1989-2013; 18 June - 3 July 2016; November - December 2006) *
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Latitude *
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Longitude *
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Depth range (m)
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Temperature Range (C)
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Salinity Range
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Sample Type
Sampling method (CTD/GOFLO/Underway) *
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Applicable data links
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Collection notes
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Method used (bubble, modified bubble, enrichment, other)
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Method reference(s)
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Incubation type (on deck or in-situ)
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Incubation duration (hours)
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Local start time
Local end time
Bottle type (PP, PC, or other)
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Incubation volume
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Light levels
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15N injection volume
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15N brand
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15N lot number
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Shaking? If yes, describe method
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15N2 enrichment
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Sampling procedure for 15N2
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15N2 sample storage
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Mass spectrometric method used
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Standardization
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Filter type (GFF, pore size, combusted/uncombusted)
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Filters acid fumed
Trace metal clean
Brand of Mass spec used
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Range of Limit of Detection (give units)
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Range of Minimum Quantifiable Rate (give units)
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Range of PN mass
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Range of Atom Percent (A%) of PN samples
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Range of mass and A% of standards
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13C productivity incubations
13C productivity incubations notes
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Reference (Author, journal, year)
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Form data entry by (name and email)
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