http://lod.bco-dmo.org/id/dataset/931843
eng; USA
utf8
dataset
Highest level of data collection, from a common set of sensors or instrumentation, usually within the same research project
Biological and Chemical Oceanography Data Management Office (BCO-DMO)
Unavailable
508-289-2009
WHOI MS#36
Woods Hole
MA
02543
USA
info@bco-dmo.org
http://www.bco-dmo.org
Monday - Friday 8:00am - 5:00pm
For questions regarding this resource, please contact BCO-DMO via the email address provided.
pointOfContact
2024-07-08
ISO 19115-2 Geographic Information - Metadata - Part 2: Extensions for Imagery and Gridded Data
ISO 19115-2:2009(E)
Biogenic and lithogenic silica concentrations from marine suspended particles collected during the 2011 CLIVAR S04P expedition on RVIB Nathaniel B. Palmer from February 19 to April 19, 2011
2025-09-03
publication
2025-09-03
revision
Marine Biological Laboratory/Woods Hole Oceanographic Institution Library (MBLWHOI DLA)
2025-11-13
publication
https://doi.org/10.26008/1912/bco-dmo.931843.1
Peter L. Morton
Florida State University
principalInvestigator
Jeffrey W. Krause
Dauphin Island Sea Lab
principalInvestigator
Biological and Chemical Oceanography Data Management Office (BCO-DMO)
Unavailable
508-289-2009
WHOI MS#36
Woods Hole
MA
02543
USA
info@bco-dmo.org
http://www.bco-dmo.org
Monday - Friday 8:00am - 5:00pm
For questions regarding this resource, please contact BCO-DMO via the email address provided.
publisher
Cite this dataset as: Morton, P. L., Krause, J. W. (2025) Biogenic and lithogenic silica concentrations from marine suspended particles collected during the 2011 CLIVAR S04P expedition on RVIB Nathaniel B. Palmer from February 19 to April 19, 2011. Biological and Chemical Oceanography Data Management Office (BCO-DMO). (Version 1) Version Date 2025-09-03 [if applicable, indicate subset used]. doi:10.26008/1912/bco-dmo.931843.1 [access date]
Biogenic and lithogenic silica in Southern Ocean marine suspended particulate material (0-1000 m) Dataset Description: Methods and Sampling: <p>Water (2-10.9 liters) from each GO-Flo was filtered over a 47-millimeter (mm) diameter, 0.4-micrometer (µm) pore size PCTE filter (Measures et al., 2008). Samples were stored in new Whatman petri slides, double-bagged, at room temperature until ready for processing. The filters were subdivided into thirds or quarters using a ceramic rotary blade on a clean acrylic panel.</p>
<p>One subsection (1/3 or 1/4) was processed for biogenic and lithogenic silica concentrations, according to Krause et al. (2009) and Brzezinski and Nelson (1995). In brief, the filter subsample was submerged in 0.2 N NaOH for 2 hours in Teflon tubes to dissolve the silica. The resulting solution was reacted with ammonium molybdate, metol, and oxalic acid to produce silicomolybous acid, the absorbance of which was measured spectrophotometrically.</p>
<p>Lithogenic silica concentrations were determined using a subsample of the original NaOH digest solution, which was diluted with DI water and centrifuged. The supernatant was taken to dryness then digested again using HF over 48 hours. Boric acid was added to the HF solution, which was then reacted and analyzed in the same way as the biogenic silica digest solutions.</p>
<p>Concentrations were determined using matrix-matched standards for both the biogenic and lithogenic digest solutions.</p>
Funding provided by NSF Division of Ocean Sciences (NSF OCE) Award Number: OCE-1658311 Award URL: https://www.nsf.gov/awardsearch/show-award?AWD_ID=1658311
completed
Peter L. Morton
Florida State University
757-375-2904
Eller O&M 609
College Station
TX
77843
USA
pete.morton@tamu.edu
pointOfContact
Jeffrey W. Krause
Dauphin Island Sea Lab
251-861-2141 x2289
101 Bienville Blvd
Dauphin Island
AL
36528
USA
jkrause@disl.edu
pointOfContact
asNeeded
Dataset Version: 1
Unknown
Station
DATE
LATITUDE
LONGITUDE
Depth
BSi
Lsi
General Oceanics GO-Flo bottles
Thermo Genesys 10s Uv-Vis spectrophotometer
theme
None, User defined
station
date
latitude
longitude
depth
biogenic silica concentration
lithogenic silica concentration
featureType
BCO-DMO Standard Parameters
GO-FLO Bottle
Spectrophotometer
instrument
BCO-DMO Standard Instruments
NBP1102
service
Deployment Activity
outhern Ocean, Pacific sector (Ross Sea to Western Antarctic Peninsula)
place
Locations
otherRestrictions
otherRestrictions
Access Constraints: none. Use Constraints: Please follow guidelines at: http://www.bco-dmo.org/terms-use Distribution liability: Under no circumstances shall BCO-DMO be liable for any direct, incidental, special, consequential, indirect, or punitive damages that result from the use of, or the inability to use, the materials in this data submission. If you are dissatisfied with any materials in this data submission your sole and exclusive remedy is to discontinue use.
U. S. Climate Variability and Predictability
http://www.usclivar.org/
U. S. Climate Variability and Predictability
Note: The official U.S. CLIVAR program description will be supplied by Steve Diggs.
A temporary description copied from the US CLIVAR Web site is:
CLIVAR (Climate Variability and Predictability) is an international, interdisciplinary research effort within the World Climate Research Programme (WCRP) focusing on the variability and predictability of the slowly varying components of the climate system. CLIVAR investigates the physical and dynamical processes in the climate system that occur on seasonal, interannual, decadal and centennial time-scales. CLIVAR recognizes that a critical measure of success in its research program is a transferal of insight and knowledge to routine production of climate forecasts, information and products.
The goals of U.S. CLIVAR include:
Identifying and understanding the major patterns of climate variability on seasonal, decadal and longer time scales and evaluating their predictability;
Expanding our capacity in short term (seasonal to interannual) climate predictability and searching for ways to predict decadal variability;
Better documenting the record of rapid climate changes and the mechanisms for these events, and evaluating the potential for abrupt climate changes in the future;
Evaluating and enhancing the models used to project climate change due to human activity, including anthropogenically induced changes in atmospheric composition, and:
Detecting and describing any climate changes that may occur.
Program Data: The data from most projects associated with the US CLIVAR program are not managed by BCO-DMO. Information about these projects and their results are available from the Program and Data site URLs shown above. However, there are a few exceptions, and those projects are listed below when the project section is expanded.
U.S. CLIVAR
largerWorkCitation
program
Collaborative Research: Iron Incorporation into Biogenic Silica
https://osprey.bco-dmo.org/project/752516
Collaborative Research: Iron Incorporation into Biogenic Silica
<p><em>NSF Award Abstract:</em><br />
Ocean research over the last several decades has increasingly shown the great importance of iron chemistry on marine biological processes. In certain areas of the ocean where iron is scarce, it can limit biological growth even though other essential nutrients like nitrogen and phosphorus are abundant. Consequently, to fully understand and quantify biological productivity in the ocean, a complete knowledge of all sources and sinks for iron is essential. The researchers funded for this project have already generated exciting preliminary data that suggest a potentially large, yet, unquantified pathway for iron removal. Diatoms, phytoplankton with shells made of silica, are shown to incorporate traces of iron into their shells, making it unavailable for rapid recycling or use by marine organisms in surface waters. Given the great abundance of diatoms in many parts of the ocean, this could represent a major, unstudied removal mechanism that regulates the concentration of iron in seawater. This research could transform current understanding of how iron is removed from the ocean, and it will impact understanding of both the chemical and biological processes involving iron in seawater. The investigator also plans outreach in K-12 schools by providing educational courses for Earth Science teachers and will support graduate student training in advanced chemical analysis and oceanography.</p>
<p>High-resolution synchrotron-based chemical techniques will allow determination of the concentration and oxidation state of iron bound within diatom frustules. This analytical advance has created the ability for unique evaluation of iron sequestration into biogenic silica as a major pathway for iron removal from the ocean. Samples from the Pacific sector of the Southern Ocean have been collected in a previous CLIVAR field campaign and a subset of these are available for new synchrotron analysis of iron (Fe) with Near Edge X-ray Fluorescence Spectroscopy (Fe-NEXFS) and submicron scale X-ray fluorescence mapping, as well as a variety of other chemical characterizations. With these methods, the project will determine the importance of iron sequestered into biogenic silica as a new and unquantified loss term in the oceanic Fe cycle and examine the changing chemical complexes of iron during vertical transport of silica particles through the water column.</p>
SO-Fe-bSi
largerWorkCitation
project
eng; USA
oceans
outhern Ocean, Pacific sector (Ross Sea to Western Antarctic Peninsula)
179.42
-175.47
-75.46
-67
2011-02-23
2011-04-19
Southern Ocean (Pacific Sector) – 2011 S04P CLIVAR
0
BCO-DMO catalogue of parameters from Biogenic and lithogenic silica concentrations from marine suspended particles collected during the 2011 CLIVAR S04P expedition on RVIB Nathaniel B. Palmer from February 19 to April 19, 2011
Biological and Chemical Oceanography Data Management Office (BCO-DMO)
Unavailable
508-289-2009
WHOI MS#36
Woods Hole
MA
02543
USA
info@bco-dmo.org
http://www.bco-dmo.org
Monday - Friday 8:00am - 5:00pm
For questions regarding this resource, please contact BCO-DMO via the email address provided.
pointOfContact
http://lod.bco-dmo.org/id/dataset-parameter/931913.rdf
Name: Station
Units: unitless
Description: <p>station identification number</p>
http://lod.bco-dmo.org/id/dataset-parameter/931914.rdf
Name: DATE
Units: unitless
Description: <p>date of sample collection</p>
http://lod.bco-dmo.org/id/dataset-parameter/931915.rdf
Name: LATITUDE
Units: decimal degrees
Description: <p>latitude of sample collection; negative values = South</p>
http://lod.bco-dmo.org/id/dataset-parameter/931916.rdf
Name: LONGITUDE
Units: decimal degrees
Description: <p>longitude of sample collection; negative values = West</p>
http://lod.bco-dmo.org/id/dataset-parameter/931917.rdf
Name: Depth
Units: meters (m)
Description: <p>sample depth</p>
http://lod.bco-dmo.org/id/dataset-parameter/931918.rdf
Name: BSi
Units: micromoles per liter (umol/L)
Description: <p>biogenic silica</p>
http://lod.bco-dmo.org/id/dataset-parameter/931919.rdf
Name: Lsi
Units: micromoles per liter (umol/L)
Description: <p>lithogenic silica</p>
GB/NERC/BODC > British Oceanographic Data Centre, Natural Environment Research Council, United Kingdom
Biological and Chemical Oceanography Data Management Office (BCO-DMO)
Unavailable
508-289-2009
WHOI MS#36
Woods Hole
MA
02543
USA
info@bco-dmo.org
http://www.bco-dmo.org
Monday - Friday 8:00am - 5:00pm
For questions regarding this resource, please contact BCO-DMO via the email address provided.
pointOfContact
13165
https://darchive.mblwhoilibrary.org/server/api/core/bitstreams/8af32aa0-d5db-4a29-846f-d79b416a92a7/content
download
https://doi.org/10.26008/1912/bco-dmo.931843.1
download
onLine
dataset
<p>Water (2-10.9 liters) from each GO-Flo was filtered over a 47-millimeter (mm) diameter, 0.4-micrometer (µm) pore size PCTE filter (Measures et al., 2008). Samples were stored in new Whatman petri slides, double-bagged, at room temperature until ready for processing. The filters were subdivided into thirds or quarters using a ceramic rotary blade on a clean acrylic panel.</p>
<p>One subsection (1/3 or 1/4) was processed for biogenic and lithogenic silica concentrations, according to Krause et al. (2009) and Brzezinski and Nelson (1995). In brief, the filter subsample was submerged in 0.2 N NaOH for 2 hours in Teflon tubes to dissolve the silica. The resulting solution was reacted with ammonium molybdate, metol, and oxalic acid to produce silicomolybous acid, the absorbance of which was measured spectrophotometrically.</p>
<p>Lithogenic silica concentrations were determined using a subsample of the original NaOH digest solution, which was diluted with DI water and centrifuged. The supernatant was taken to dryness then digested again using HF over 48 hours. Boric acid was added to the HF solution, which was then reacted and analyzed in the same way as the biogenic silica digest solutions.</p>
<p>Concentrations were determined using matrix-matched standards for both the biogenic and lithogenic digest solutions.</p>
Specified by the Principal Investigator(s)
<p>Data were processed using Microsoft Excel (quantification by external standards using 1 centimeter (cm) or 10 cm cell).</p>
Specified by the Principal Investigator(s)
- Imported original file "S04P 2011 bSi lSi 2024_05_15.xlsx" into the BCO-DMO system.
- Imported bottle file "320620110219_hy1.csv" obtained from CCHDO on 2024-07-08 (source: https://cchdo.ucsd.edu/cruise/320620110219).
- Added DATE column from the bottle file; joining data by station number.
- Converted DATE column to YYYY-MM-DD format.
- Saved the final file as "931843_v1_nbp1102_biogenic_and_lithogenic_silica.csv".
Specified by BCO-DMO Data Managers
asNeeded
7.x-1.1
Biological and Chemical Oceanography Data Management Office (BCO-DMO)
Unavailable
508-289-2009
WHOI MS#36
Woods Hole
MA
02543
USA
info@bco-dmo.org
http://www.bco-dmo.org
Monday - Friday 8:00am - 5:00pm
For questions regarding this resource, please contact BCO-DMO via the email address provided.
pointOfContact
General Oceanics GO-Flo bottles
General Oceanics GO-Flo bottles
PI Supplied Instrument Name: General Oceanics GO-Flo bottles Instrument Name: GO-FLO Bottle Instrument Short Name:GO-FLO Instrument Description: GO-FLO bottle cast used to collect water samples for pigment, nutrient, plankton, etc. The GO-FLO sampling bottle is specially designed to avoid sample contamination at the surface, internal spring contamination, loss of sample on deck (internal seals), and exchange of water from different depths. Community Standard Description: http://vocab.nerc.ac.uk/collection/L05/current/30/
Thermo Genesys 10s Uv-Vis spectrophotometer
Thermo Genesys 10s Uv-Vis spectrophotometer
PI Supplied Instrument Name: Thermo Genesys 10s Uv-Vis spectrophotometer Instrument Name: Spectrophotometer Instrument Short Name:Spectrophotometer Instrument Description: An instrument used to measure the relative absorption of electromagnetic radiation of different wavelengths in the near infra-red, visible and ultraviolet wavebands by samples. Community Standard Description: http://vocab.nerc.ac.uk/collection/L05/current/LAB20/
Cruise: NBP1102
NBP1102
Community Standard Description
International Council for the Exploration of the Sea
RVIB Nathaniel B. Palmer
vessel
NBP1102
James H. Swift
University of California-San Diego Scripps
https://cchdo.ucsd.edu/data/10405/s04p_320620110219do.pdf
Report describing NBP1102
Community Standard Description
International Council for the Exploration of the Sea
RVIB Nathaniel B. Palmer
vessel