Variability estimates from R/V Columbus IronEx I cruise in he Equatorial Pacific Ocean in 1993 (IronEx I project)

Version: 10June2009
Version Date: 2009-06-10

» Iron Experiment I (IronExI)

» Iron Synthesis (FeSynth)
Coale, Kenneth H.Moss Landing Marine Laboratories (MLML)Principal Investigator
Johnson, KenMonterey Bay Aquarium Research Institute (MBARI)Co-Principal Investigator
Mackie, DougUniversity of OtagoContact
Gegg, Stephen R.Woods Hole Oceanographic Institution (WHOI)BCO-DMO Data Manager

Dataset Description

IronExI - Variability estimates Inside/Outside the patch

Data Processing Description

BCO-DMO Processing Notes
Variability estimates data were culled out of the original FeX 1 CTD,Nuts,SF6.xls file
and a separate dataset was generated.
Original file was downloaded on 16June2008 from

- Station, event, date, time, lat, lon. depth and Patch (in/Out) were from the station list
- Parameter names modified to conform to BCO-DMO convention

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Data Files

(Comma Separated Values (.csv), 2.75 KB)
Primary data file for dataset ID 3158

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timeTime UTC HHMM
latlatitude, negative denotes South decimal degrees
lonlongitude, negative denotes West decimal degrees
eventUnique event number (Generated by BCO-DMO) YYYYDAYHHMM
PatchPatch In/Out Flag Refers to sampling in ("I") or out ("O") of the established Iron enrichedpatch, based on SF6 measurements text
orig_event_numberEvent number from original log file Preserved for reference YYYY_DDD
StationStation id text
depthSample depth in meters meters
commentsComments field text
Var1Variability estimate 1 (tbd)
Var2Variability estimate 2 (tbd)

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R/V Columbus Iselin
Start Date
End Date

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Project Information

Iron Experiment I (IronExI)

Coverage: Equatorial Pacific Ocean

One of two (see IronExII May/June 1995) small scale iron fertilization
experiments conducted in the Equatorial Pacific Ocean.

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Program Information

Iron Synthesis (FeSynth)

Coverage: Global

The two main objectives of the Iron Synthesis program (SCOR Working Group proposal, 2005), are:
1. Data compilation: assembling a common open-access database of the in situ iron experiments, beginning with the first period (1993-2002; Ironex-1, Ironex-2, SOIREE, EisenEx, SEEDS-1; SOFeX, SERIES) where primary articles have already been published, to be followed by the 2004 experiments where primary articles are now in progress (EIFEX, SEEDS-2; SAGE, FeeP); similarly for the natural fertilizations S.O.JGOFS (1992), CROZEX (2004/2005) and KEOPS (2005).

2. Modeling and data synthesis of specific aspects of two or more such experiments for various topics such as physical mixing, phytoplankton productivity, overall ecosystem functioning, iron chemistry, CO2 budgeting, nutrient uptake ratios, DMS(P) processes, and combinations of these variables and processes.

SCOR Working Group proposal, 2005. "The Legacy of in situ Iron Enrichments: Data Compilation and Modeling".

See also: SCOR Proceedings Vol. 42 Concepcion, Chile October 2006, pgs: 13-16 2.3.3 Working Group on The Legacy of in situ Iron Enrichments: Data Compilation and Modeling.

The first objective of the Iron Synthesis program involves a data recovery effort aimed at assembling a common, open-access database of data and metadata from a series of in-situ ocean iron fertilization experiments conducted between 1993 and 2005. Initially, funding for this effort is being provided by the Scientific Committee on Oceanic Research (SCOR) and the U.S. National Science Foundation (NSF).

Through the combined efforts of the principal investigators of the individual projects and the staff of Biological and Chemical Oceanography Data Management Office (BCO-DMO), data currently available primarily through individuals, disparate reports and data agencies, and in multiple formats, are being collected and prepared for addition to the BCO-DMO database from which they will be freely available to the community.

As data are contributed to the BCO-DMO office, they are organized into four overlapping categories:
1. Level 1, basic metadata
(e.g., description of project/study, general location, PI(s), participants);
2. Level 2, detailed metadata and basic shipboard data and routine ship's operations
(e.g., CTDs, underway measurements, sampling event logs);
3. Level 3, detailed metadata and data from specialized observations
(e.g., discrete observations, experimental results, rate measurements) and
4. Level 4, remaining datasets
(e.g., highest level of detailed data available from each study).

Collaboration with BCO-DMO staff began in March of 2008 and initial efforts have been directed toward basic project descriptions, levels 1 and 2 metadata and basic data, with detailed and more detailed data files being incorporated as they become available and are processed.

Related file

Program Documentation

The Iron Synthesis Program is funded jointly by the Scientific Committee on Oceanic Research (SCOR) and the U.S. National Science Foundation (NSF).

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Funding SourceAward
NSF Division of Ocean Sciences (NSF OCE)
Office of Naval Research (ONR)

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