GoFlos sampling log from R/V Tangaroa cruise 61TG_3052 in the Southern Ocean in 1999 (SOIREE project)

Website: https://www.bco-dmo.org/dataset/2826
Version: 14August2009
Version Date: 2009-08-14

» Southern Ocean Iron Release Experiment (SOIREE)

» Iron Synthesis (FeSynth)
Boyd, Philip W.New Zealand National Institute of Water and Atmospheric Research (NIWA)Principal Investigator
Mackie, DougUniversity of OtagoContact
Gegg, Stephen R.Woods Hole Oceanographic Institution (WHOI)BCO-DMO Data Manager

Dataset Description

SOIREE GoFlos Sampling Log
Station id, date, time, lat, lon and parameters sampled at each Go Flos station

Methods & Sampling

Prepared by science party aboard the vessel

Data Processing Description

BCO-DMO Processing Notes

Generated from original spreadsheet stationlist.xls,
tab: Go Flos
provided on the Deep-Sea Research II 48 (2001) accompanying CD-Rom


- parameter names modified to conform to BCO-DMO convention

- Station Number changed to station

- date reformatted to YYYYMMDD

- time reformatted to HHMM

- Lat/Lon converted from degs, decimal minutes to decimal degrees

- 'nd' added to blank cells

- '*' in cells changed to 'sampled'

- commas in Depth and Experiment columns replaced with semi-colons

- parenthesis replaced with underscores

- tz (timezone) added from SOIREE_Stations_MasterStationList.xls

- original local date/time converted to GMT (both retained)

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Data Files

(Comma Separated Values (.csv), 19.78 KB)
Primary data file for dataset ID 2826

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stationStation Id (Text String) text
date_locallocal date YYYYMMDD
timezonelocal time zone, +/- from GMT integer
lonlongitude, negative denotes West decimal degrees
latlatitude, negative denotes South decimal degrees
operationOperation Description (text field) text
time_locallocal time HHMM
time_UTCUTC time HHMM
depthSample depth meters
ops_gofloStation activity or station description text
ExperimentGoFlos Sampling Experiment text
Ligands_NIOZSampled for Ligands_NIOZ (sampled or nd) text
PML_Fe_totSampled for PML_Fe_tot (sampled or nd) text
PML_Fe_dissSampled for PML_Fe_diss (sampled or nd) text
Otago_Fe_totSampled for Otago_Fe_tot (sampled or nd) text
Otago_Fe_dissSampled for Otago_Fe_diss (sampled or nd) text
Mn_totSampled for Mn_tot (sampled or nd) text
Mn_dissSampled for Mn_diss (sampled or nd) text
Zn_totSampled for Zn_tot (sampled or nd) text
Zn_dissSampled for Zn_diss (sampled or nd) text
Cu_totSampled for Cu_tot (sampled or nd) text
Cu_dissSampled for Cu_diss (sampled or nd) text
Cu_ligandsSampled for Cu_ligands (sampled or nd) text
Cd_totSampled for Cd_tot (sampled or nd) text
Cd_dissSampled for Cd_diss (sampled or nd) text
Ni_totSampled for Ni_tot (sampled or nd) text
Ni_dissSampled for Ni_diss (sampled or nd) text
SilicateSampled for Silicate (sampled or nd) text
NitrateSampled for Nitrate (sampled or nd) text
PhosphateSampled for Phosphate (sampled or nd) text
In_vitro_Fe_exptSampled for In_vitro_Fe_expt (sampled or nd) text

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R/V Tangaroa
Start Date
End Date
Cruise to the Southern Ocean as part of the Fe Sythesis project whose aim was to maintain a coherent patch of iron-enriched seawater for the duration of SOIREE and to interpret any iron-mediated effects on the patch by conducting measurements and performing experiments during this period.

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Project Information

Southern Ocean Iron Release Experiment (SOIREE)

Coverage: Southern Ocean

Project in the Southern Ocean aimed at maintaining a coherent patch of iron-enriched seawater for the duration of project and to interpret any iron-mediated effects on the patch by conducting measurements and performing experiments during this period of the project.

The Southern Ocean Iron RElease Experiment (SOIREE), was the first in situ iron fertilization experiment performed in the polar waters of the Southern Ocean. SOIREE was an interdisciplinary study involving participants from six countries, and took place in February 1999 south of the Polar Front in the Australasian-Pacific sector of the Southern Ocean.

Approximately 3800 kg of acidified FeSO4.7H2O and 165 g of the tracer sulphur hexafluoride (SF6) were added to a 65-m deep surface mixed layer over an area of ~50 km2. Initially, mean dissolved iron concentrations were ~2.7 nM, but decreased to ambient levels within days, requiring subsequent additions of 1550-1750 kg of acidified FeSO4.7H2O on days 3, 5 and 7 of the experiment.

During the 13-day site occupation, there were iron-mediated increases in phytoplankton growth rates, with marked increases in chlorophyll a (up to 2 µgl-1) and production rates (up to 1.3 gCm-2d-1). These resulted in subsequent changes in the pelagic ecosystem structure, and in the cycling of carbon, silica and sulphur, such as a 10% drawdown of surface CO2.

The SOIREE bloom persisted for >40 days following our departure from the site, as observed via SeaWiFS remotely sensed observations of Ocean Colour.

All original data and metadata provided on a CD-Rom accompanying the Deep-Sea Research II 48 (2001) volume. The CD-Rom contains the main SOIREE datasets and ancillary information including the pre-experiment 'desktop' database study for site-selection, and satellite images of the SOIREE bloom.
© 2001 Elsevier Science Ltd. All rights reserved.

Related files

SOIREE Preliminary Voyage Report
SOIREE Introduction and Summary, Deep-Sea Research II 48 (2001) 2425-2438
SOIREE Cruise Track

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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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