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

Website: https://www.bco-dmo.org/dataset/2829
Version: 14August2009
Version Date: 2009-08-14

Project
» Southern Ocean Iron Release Experiment (SOIREE)

Program
» Iron Synthesis (FeSynth)
ContributorsAffiliationRole
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 CTD Sampling Log
Station id, date, time, lat, lon and parameters sampled at each CTD station


Methods & Sampling

Prepared by science party aboard the vessel


Data Processing Description

BCO-DMO Processing Notes

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

BCO-DMO Edits

- data header/parameter records formatted into one record

- 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

- cells with " (quotes) filled with the quoted data

- commas in file replaced with semi-colons

- parenthesis replaced with underscores

- deleted blank column (was column X)

- the '-' (negative sign) in NUTS column for 19990215 2024 changed to 'neg'

- High Resolution Cast replaced with HRC in ops_tracegas column

- tz (timezone) added from SOIREE_Stations_MasterStationList.xls

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



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Data Files

File
log_CTD.csv
(Comma Separated Values (.csv), 89.12 KB)
MD5:c86b7a3ff4e4b2d9849cb1d46a39ec09
Primary data file for dataset ID 2829

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Parameters

ParameterDescriptionUnits
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
ops_ctdStation activity or station description (text field) text
time_locallocal time HHMM
date_UTCUTC Date YYYYMMDD
time_UTCUTC time HHMM
depthSample depth meters
botsCTD Bottle Numbers Sampled integer
SalinitySalinity dimensionless
NutsSampled for Nuts (sampled or nd or value) text
POC_to_PONSampled for POC/PON (sampled or nd or value) text
Psi_2L_unless_indSampled for Nuts (sampled or nd or value) text
SinkingRates_SR_ChlorophyllSampled for SinkingRates_SR_Chlorophyll (sampled or nd or value) text
CellCountSampled for CellCount (sampled or nd or value) text
Bacterial_NumSampled for Bacterial# (sampled or nd or value) text
BacterialProdSampled for BacterialProd (sampled or nd or value) text
Picop_NumSampled for Picop# (sampled or nd or value) text
Flagellate_NumSampled for Flagellate# (sampled or nd or value) text
Microzoo_NumSampled for Microzoo# (sampled or nd or value) text
FLB_GrazingSampled for FLB_Grazing (sampled or nd or value) text
BacterialDisSampled for BacterialDis (sampled or nd or value) text
DilutionGrazSampled for DilutionGraz (sampled or nd or value) text
FeBactGrazSampled for FeBactGraz (sampled or nd or value) text
TotalChlaSampled for TotalChla (sampled or nd or value) text
SFChlaSampled for SFChla (sampled or nd or value) text
LugolsSampled for Lugols (sampled or nd or value) text
FRRFSampled for FRRF (sampled or nd or value) text
HPLCPigmentsSampled for HPLCPigments (sampled or nd or value) text
Pv_ISampled for Pv_I (sampled or nd or value) text
SIS_ProductionSampled for SIS_Production (sampled or nd or value) text
Si32Sampled for 32Si (sampled or nd or value) text
DOCSampled for DOC (sampled or nd or value) text
C13_minus_DICSampled for 13C-DIC (sampled or nd or value) text
PSII_P_vs_ISampled for PSII_P_vs_I (sampled or nd or value) text
Cyt_f_P700Sampled for Cyt_f_P700 (sampled or nd or value) text
Chl_a_tot_and_2_20mmSampled for Chl_a_tot_&_2_20mm (sampled or nd or value) text
PhotosyntheticMeasures_R_StrzepekSampled for PhotosyntheticMeasures_R_Strzepek (sampled or nd or value) text
PC_to_NSampled for PC_to_N (sampled or nd or value) text
CellCountsSampled for CellCounts (sampled or nd or value) text

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Deployments

61TG_3052

Website
Platform
R/V Tangaroa
Report
Start Date
1999-01-31
End Date
1999-03-01
Description
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.

BCO-DMO Note:
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".
http://www.scor-int.org/Working_Groups/wg131.htm

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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