http://lod.bco-dmo.org/id/dataset/3702
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
2012-08-17
ISO 19115-2 Geographic Information - Metadata - Part 2: Extensions for Imagery and Gridded Data
ISO 19115-2:2009(E)
Particulate Trace Metals from NOAA Ship Ronald H. Brown RB-03-04B, RB-03-04C in the Reykjavik, Iceland to Natal Brazil from June to August 2003 (CLIVAR AEROSOL project)
2012-08-17
publication
2012-08-17
revision
BCO-DMO Linked Data URI
2012-08-17
creation
http://lod.bco-dmo.org/id/dataset/3702
Joseph A. Resing
National Oceanic and Atmospheric Administration
principalInvestigator
William M. Landing
Florida State University EOAS
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: Resing, J. A., Landing, W. M. (2012) Particulate Trace Metals from NOAA Ship Ronald H. Brown RB-03-04B, RB-03-04C in the Reykjavik, Iceland to Natal Brazil from June to August 2003 (CLIVAR AEROSOL project). Biological and Chemical Oceanography Data Management Office (BCO-DMO). (Version 17 August 2012) Version Date 2012-08-17 [if applicable, indicate subset used]. http://lod.bco-dmo.org/id/dataset/3702 [access date]
Particulate Trace Metals Dataset Description: <p>Particulate trace element analysis by energy-dispersive X-ray fluorescence</p>
<p>Concentrations reported in nmol/L for the following elements (20): Mg, Al, Si, P, S, Cl, K, Ca, Ti, V, Cr, Mn, Fe, Nu, Cu, Zn, As, Br, Sr, and Pb; along with date (month/day/year), latitude (degrees north), longitude (degrees east), depth (m), station number, cast number, and bottle number.</p>
<p>Note that related data from 2013 are available here:&nbsp;<a href="https://www.bco-dmo.org/dataset/699160" target="_blank">https://www.bco-dmo.org/dataset/699160</a></p>
<p><strong>Related files and references:&nbsp; </strong><br />
Barrett, Pamela M., Resing, Joseph A., Buck, Nathaniel J., Buck, Clifton S., Landing, William M., Measures, Christopher I., The trace element composition of suspended particulate matter in the upper 1000 m of the eastern North Atlantic Ocean: A16N, Marine Chemistry (2012), doi: 10.1016/j.marchem.2012.07.006.<br />
<br />
Feely, R.A., Massoth, G.J., Lebon, G.T., 1991. Sampling of marine particulate matter and analysis by x-ray fluorescence spectrometry. In: Hurd, D.C. and Spencer, D.W. (eds.), Marine Particles: Analysis and Characterization, AGU Geophysical Monograph Series, p. 251-257.<br />
<br />
Gladney, E.S., Roelandts, I., 1988. 1987 Compilation of elemental concentration data for USGS BHVO-1, MAG-1, QLO-1, RGM-1, SCo-1, SDC-1, SGR-1 and STM-1. Geostandards Newsl. 12 (2), 253–362.<br />
<br />
Holynska, B., Bisiniek, K., 1976. Determination of trace amounts of metals in saline water by energy dispersive XRF using the NaDDTC preconcentration. J. Radioanal. Nucl. Chem. 31, 159–166.<br />
<br />
Measures, C.I., Landing, W.M., Brown, M.T., Buck, C.S., 2008. A commercially available rosette system for trace metal-clean sampling. Limnology and Oceanography Methods 6, 384-394.</p> Methods and Sampling: <p><strong>Sampling and Analytical Methodology:</strong></p>
<p>Seawater samples were collected from the surface ocean to depths of 750-1000 m, then sub-sampled for suspended particulate matter under trace-element-clean conditions (see Measures et al., 2008 for details). Briefly, suspended particulate matter samples were collected by pressurizing GO-FLO bottles with &lt;10 psi filtered, compressed air. Samples were filtered through acid-cleaned 0.4 μm polycarbonate filters (Nuclepore) in polypropylene holders. Acid-cleaned backing filters of mixed cellulose esters were used to ensure even loading on sample filters. Samples were rinsed while on the filter holders with 15-20 mL deionized (DI) water adjusted to pH 8 with ammonium hydroxide from the edges to the center, with a low vacuum applied to avoid loss or re-distribution of particles. Filtration was started approximately 30 to 60 minutes after water samples were collected and was generally completed within 60 minutes.</p>
<p>Particulate trace element concentrations were determined by energy-dispersive X-ray fluorescence (ED-XRF) using a thin film technique described by Feely et al. (1991). An optical subsample of each filter was analyzed on a Thermo Fisher Quant'X equipped with a Rhodium Target X-Ray tube and an electronically cooled, lithium-drifted solid state detector. X-rays for primary sample excitation were filtered for optimum control of peak-to-background ratios. Standards for calibration consisted of commercial thin film standards (MicroMatter), geochemical reference sample material MAG-1 (Gladney and Roelandts, 1988) finely ground and loaded onto polycarbonate filters (Feely et al., 1991), and a series of standards prepared using a modification of the method reported by Holynska and Bisiniek (1976) using sodium diethyldithiocarbamate (NaDDTC) to quantitatively precipitate trace metals from a solution of known concentration. These standards were prepared using a 1% NaDDTC solution that was added to trace metal solutions at pH 4 with a ligand-to-metal ratio of 4:1. The resulting precipitate was filtered over an acid-cleaned, 0.4 μm polycarbonate Nuclepore filter. Procedural blanks were made by addition of a NaDDTC solution to a sample of acidified DI water followed by filtration. MicroMatter and MAG-1 standards were used to create individual standard curves for all elements; standard curves for Fe and Mn also included NaDDTC standards.</p>
<p>Four different excitation conditions, all conducted under a vacuum atmosphere, were used for sample analysis and are detailed along with minimum determination limits (MDL) in <a href="http://bcodata.whoi.edu//CLIVAR_AEROSOL/CLIVAR_A16N_Particulate_Data_metadata_table1.pdf" target="_blank">Table 1</a>. MDLs are defined as 3 times the square root of the background intensity measured from a standard of known concentration:</p>
<p>MDL = ( 3 * √I<sub>b</sub>)/(I<sub>p</sub>/conc)</p>
<p>where <em>I</em><sub><em>b</em></sub> is the background intensity,<em> I</em><sub><em>p</em></sub> is the peak intensity, and <em>conc</em> is the concentration of the standard. MicroMatter standards were used to calculate MDLs.</p>
<p><strong>Related files and references:&nbsp; </strong><br />
Barrett, Pamela M., Resing, Joseph A., Buck, Nathaniel J., Buck, Clifton S., Landing, William M., Measures, Christopher I., The trace element composition of suspended particulate matter in the upper 1000 m of the eastern North Atlantic Ocean: A16N, Marine Chemistry (2012), doi: 10.1016/j.marchem.2012.07.006.<br />
<br />
Feely, R.A., Massoth, G.J., Lebon, G.T., 1991. Sampling of marine particulate matter and analysis by x-ray fluorescence spectrometry. In: Hurd, D.C. and Spencer, D.W. (eds.), Marine Particles: Analysis and Characterization, AGU Geophysical Monograph Series, p. 251-257.<br />
<br />
Gladney, E.S., Roelandts, I., 1988. 1987 Compilation of elemental concentration data for USGS BHVO-1, MAG-1, QLO-1, RGM-1, SCo-1, SDC-1, SGR-1 and STM-1. Geostandards Newsl. 12 (2), 253–362.<br />
<br />
Holynska, B., Bisiniek, K., 1976. Determination of trace amounts of metals in saline water by energy dispersive XRF using the NaDDTC preconcentration. J. Radioanal. Nucl. Chem. 31, 159–166.<br />
<br />
Measures, C.I., Landing, W.M., Brown, M.T., Buck, C.S., 2008. A commercially available rosette system for trace metal-clean sampling. Limnology and Oceanography Methods 6, 384-394.</p>
Funding provided by NSF Division of Ocean Sciences (NSF OCE) Award Number: OCE-0223504 Award URL: https://www.nsf.gov/awardsearch/show-award?AWD_ID=0223504
Funding provided by NSF Division of Ocean Sciences (NSF OCE) Award Number: OCE-0649505 Award URL: https://www.nsf.gov/awardsearch/show-award?AWD_ID=0649505
Funding provided by NSF Division of Ocean Sciences (NSF OCE) Award Number: OCE-0223378 Award URL: https://www.nsf.gov/awardsearch/show-award?AWD_ID=0223378
Funding provided by NSF Division of Ocean Sciences (NSF OCE) Award Number: OCE-0223397 Award URL: https://www.nsf.gov/awardsearch/show-award?AWD_ID=0223397
completed
Joseph A. Resing
National Oceanic and Atmospheric Administration
206-526-6184
Joint Institute for the Study of the Atmosphere and the Ocean, PMEL/NOAA 7600 Sand Point Way NE, Building #3
Seattle
WA
98115
USA
Resing@uw.edu
pointOfContact
William M. Landing
Florida State University EOAS
850-644-6037
Department of Earth, Ocean, and Atmospheric Science 117 N. Woodward Avenue
Tallahassee
FL
32306-4320
USA
wlanding@fsu.edu
pointOfContact
asNeeded
Dataset Version: 17 August 2012
Unknown
Station
Cast_Number
Bottle_Number
Date
Lat
Lon
Depth
Mg
FLAG_Mg
Al
FLAG_Al
Si
FLAG_Si
P
FLAG_P
S
FLAG_S
Cl
FLAG_Cl
K
FLAG_K
Ca
FLAG_Ca
Ti
FLAG_Ti
V
FLAG_V
Cr
FLAG_Cr
Mn
FLAG_Mn
Fe
FLAG_Fe
Ni
FLAG_Ni
Cu
FLAG_Cu
Zn
FLAG_Zn
As
FLAG_As
Br
FLAG_Br
Sr
FLAG_Sr
Pb
FLAG_Pb
CTD Sea-Bird SBE 911plus
GO-FLO Bottle
Thermo Fisher Quant'X Spectrometer
theme
None, User defined
station
cast
bottle
date
latitude
longitude
depth
No BCO-DMO term
flag
Aluminum
Phosphorus
Titanium
Iron
arsenic
featureType
BCO-DMO Standard Parameters
CTD Sea-Bird SBE 911plus
GO-FLO Bottle
Spectrometer
instrument
BCO-DMO Standard Instruments
RB-03-04B
RB-03-04C
service
Deployment Activity
Reykjavik, Iceland to Natal Brazil, North Atlantic Ocean meridional section (20-25W)
Funchal Madeira to Natal Brazil, North Atlantic Ocean meridional section (20-25W) ending at 6 S
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: Global Ocean Survey of Dissolved Iron and Aluminum and Aerosol Iron and Aluminum Solubility Supporting the Repeat Hydrography (CO2) Project
http://www.clivar.org/
Collaborative Research: Global Ocean Survey of Dissolved Iron and Aluminum and Aerosol Iron and Aluminum Solubility Supporting the Repeat Hydrography (CO2) Project
<p><em>NSF Award Abstract:</em><br />
A scientist from Florida State University in collaboration with colleagues from the University of Hawaii and the University of Washington will collect a suite of dissolved and particulate samples from surface waters and vertical profiles (12 depths), as well as atmospheric aerosol and rainwater samples during selected legs of the Repeat Hydrography CO2 cruises. The PIs plan to participate in the following four cruises: (1) the North Atlantic Ocean meridional section (20-25'W) during 2003; (2) the Pacific Ocean zonal section at 30'N during 2004; (3) the South Atlantic Ocean meridional section (20-25'W) in 2005; and (4) the South Pacific Ocean meridional section (150W) in 2005. Samples recovered during these cruises will be analyzed for Fe and Al. In addition, aerosol samples will be subjected to an ultrapure water leach to assess the fractional solubility of Fe and Al. This team of PIs also plans to collect and archive filtered and unfiltered water samples and aerosols for analysis by other scientists in the trace metal and tracer community. The primary objectives of this study is to generate an extensive database of Fe and Al concentrations in water and aerosol samples that can constrain global and regional dust deposition models and determine the role that atmospheric Fe depositions have in delivering Fe to surface waters in the major basins of the world's oceans.</p>
<p>Note: This project is related to the follow-on project titled, "<a href="https://www.bco-dmo.org/project/778388" target="_blank">Collaborative Research: Global Ocean Survey of Dissolved Iron and Aluminum and Aerosol Iron and Aluminum Solubility Supporting the CLIVAR Repeat Hydrography Project (2007-2009)</a>"</p>
CLIVAR AEROSOL
largerWorkCitation
project
eng; USA
oceans
Reykjavik, Iceland to Natal Brazil, North Atlantic Ocean meridional section (20-25W); Funchal Madeira to Natal Brazil, North Atlantic Ocean meridional section (20-25W) ending at 6 S
-29.00067
-19.9955
-5.003
62.333
2003-06-20
2003-08-08
Global
0
BCO-DMO catalogue of parameters from Particulate Trace Metals from NOAA Ship Ronald H. Brown RB-03-04B, RB-03-04C in the Reykjavik, Iceland to Natal Brazil from June to August 2003 (CLIVAR AEROSOL 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
http://lod.bco-dmo.org/id/dataset-parameter/29244.rdf
Name: Station
Units: Dimensionless
Description: <p>Station</p>
http://lod.bco-dmo.org/id/dataset-parameter/29245.rdf
Name: Cast_Number
Units: Dimensionless
Description: <p>Cast number</p>
http://lod.bco-dmo.org/id/dataset-parameter/29246.rdf
Name: Bottle_Number
Units: Dimensionless
Description: <p>Bottle number</p>
http://lod.bco-dmo.org/id/dataset-parameter/29247.rdf
Name: Date
Units: YYYYMMDD
Description: <p>Date</p>
http://lod.bco-dmo.org/id/dataset-parameter/29248.rdf
Name: Lat
Units: Decimal Degrees
Description: <p>Latitude (South is negative)</p>
http://lod.bco-dmo.org/id/dataset-parameter/29249.rdf
Name: Lon
Units: Decimal Degrees
Description: <p>Longitude (West is negative)</p>
http://lod.bco-dmo.org/id/dataset-parameter/29250.rdf
Name: Depth
Units: meters
Description: <p>Depth</p>
http://lod.bco-dmo.org/id/dataset-parameter/29251.rdf
Name: Mg
Units: nmol/L
Description: <p>Magnesium<br /><br />For values below the analytical detection limit values are indicated as 'BDL'.<br /><br />Quality flags are indicated as:<br />2 = acceptable<br />3 = questionable<br /></p>
http://lod.bco-dmo.org/id/dataset-parameter/29252.rdf
Name: FLAG_Mg
Units: Dimensionless
Description: <p>FLAG Magnesium<br /><br />Quality flags are indicated as:<br />2 = acceptable<br />3 = questionable<br /></p>
http://lod.bco-dmo.org/id/dataset-parameter/29253.rdf
Name: Al
Units: nmol/L
Description: <p>Aluminum<br /><br />For values below the analytical detection limit values are indicated as 'BDL'.<br /><br />Quality flags are indicated as:<br />2 = acceptable<br />3 = questionable<br /></p>
http://lod.bco-dmo.org/id/dataset-parameter/29254.rdf
Name: FLAG_Al
Units: Dimensionless
Description: <p>FLAG Aluminum<br /><br />Quality flags are indicated as:<br />2 = acceptable<br />3 = questionable<br /></p>
http://lod.bco-dmo.org/id/dataset-parameter/29255.rdf
Name: Si
Units: nmol/L
Description: <p>Silica<br /><br />For values below the analytical detection limit values are indicated as 'BDL'.<br /><br />Quality flags are indicated as:<br />2 = acceptable<br />3 = questionable<br /></p>
http://lod.bco-dmo.org/id/dataset-parameter/29256.rdf
Name: FLAG_Si
Units: Dimensionless
Description: <p>FLAG Silica<br /><br />Quality flags are indicated as:<br />2 = acceptable<br />3 = questionable<br /></p>
http://lod.bco-dmo.org/id/dataset-parameter/29257.rdf
Name: P
Units: nmol/L
Description: <p>Phosphorus<br /><br />For values below the analytical detection limit values are indicated as 'BDL'.<br /><br />Quality flags are indicated as:<br />2 = acceptable<br />3 = questionable<br /></p>
http://lod.bco-dmo.org/id/dataset-parameter/29258.rdf
Name: FLAG_P
Units: Dimensionless
Description: <p>FLAG Phosphorus<br /><br />Quality flags are indicated as:<br />2 = acceptable<br />3 = questionable<br /></p>
http://lod.bco-dmo.org/id/dataset-parameter/29259.rdf
Name: S
Units: nmol/L
Description: <p>Sulfur<br /><br />For values below the analytical detection limit values are indicated as 'BDL'.<br /><br />Quality flags are indicated as:<br />2 = acceptable<br />3 = questionable<br /></p>
http://lod.bco-dmo.org/id/dataset-parameter/29260.rdf
Name: FLAG_S
Units: Dimensionless
Description: <p>FLAG Sulfur<br /><br />Quality flags are indicated as:<br />2 = acceptable<br />3 = questionable<br /></p>
http://lod.bco-dmo.org/id/dataset-parameter/29261.rdf
Name: Cl
Units: nmol/L
Description: <p>Chlorine<br /><br />For values below the analytical detection limit values are indicated as 'BDL'.<br /><br />Quality flags are indicated as:<br />2 = acceptable<br />3 = questionable<br /></p>
http://lod.bco-dmo.org/id/dataset-parameter/29262.rdf
Name: FLAG_Cl
Units: Dimensionless
Description: <p>FLAG Chlorine<br /><br />Quality flags are indicated as:<br />2 = acceptable<br />3 = questionable<br /></p>
http://lod.bco-dmo.org/id/dataset-parameter/29263.rdf
Name: K
Units: nmol/L
Description: <p>Potassium<br /><br />For values below the analytical detection limit values are indicated as 'BDL'.<br /><br />Quality flags are indicated as:<br />2 = acceptable<br />3 = questionable<br /></p>
http://lod.bco-dmo.org/id/dataset-parameter/29264.rdf
Name: FLAG_K
Units: Dimensionless
Description: <p>FLAG Potassium<br /><br />Quality flags are indicated as:<br />2 = acceptable<br />3 = questionable<br /></p>
http://lod.bco-dmo.org/id/dataset-parameter/29265.rdf
Name: Ca
Units: nmol/L
Description: <p>Calcium<br /><br />For values below the analytical detection limit values are indicated as 'BDL'.<br /><br />Quality flags are indicated as:<br />2 = acceptable<br />3 = questionable<br /></p>
http://lod.bco-dmo.org/id/dataset-parameter/29266.rdf
Name: FLAG_Ca
Units: Dimensionless
Description: <p>FLAG Calcium<br /><br />Quality flags are indicated as:<br />2 = acceptable<br />3 = questionable<br /></p>
http://lod.bco-dmo.org/id/dataset-parameter/29267.rdf
Name: Ti
Units: nmol/L
Description: <p>Titanium<br /><br />For values below the analytical detection limit values are indicated as 'BDL'.<br /><br />Quality flags are indicated as:<br />2 = acceptable<br />3 = questionable<br /></p>
http://lod.bco-dmo.org/id/dataset-parameter/29268.rdf
Name: FLAG_Ti
Units: Dimensionless
Description: <p>FLAG Titanium<br /><br />Quality flags are indicated as:<br />2 = acceptable<br />3 = questionable<br /></p>
http://lod.bco-dmo.org/id/dataset-parameter/29269.rdf
Name: V
Units: nmol/L
Description: <p>Vanadium<br /><br />For values below the analytical detection limit values are indicated as 'BDL'.<br /><br />Quality flags are indicated as:<br />2 = acceptable<br />3 = questionable<br /></p>
http://lod.bco-dmo.org/id/dataset-parameter/29270.rdf
Name: FLAG_V
Units: Dimensionless
Description: <p>FLAG Vanadium<br /><br />Quality flags are indicated as:<br />2 = acceptable<br />3 = questionable<br /></p>
http://lod.bco-dmo.org/id/dataset-parameter/29271.rdf
Name: Cr
Units: nmol/L
Description: <p>Chromium<br /><br />For values below the analytical detection limit values are indicated as 'BDL'.<br /><br />Quality flags are indicated as:<br />2 = acceptable<br />3 = questionable<br /></p>
http://lod.bco-dmo.org/id/dataset-parameter/29272.rdf
Name: FLAG_Cr
Units: Dimensionless
Description: <p>FLAG Chromium<br /><br />Quality flags are indicated as:<br />2 = acceptable<br />3 = questionable<br /></p>
http://lod.bco-dmo.org/id/dataset-parameter/29273.rdf
Name: Mn
Units: nmol/L
Description: <p>Manganese<br /><br />For values below the analytical detection limit values are indicated as 'BDL'.<br /><br />Quality flags are indicated as:<br />2 = acceptable<br />3 = questionable<br /></p>
http://lod.bco-dmo.org/id/dataset-parameter/29274.rdf
Name: FLAG_Mn
Units: Dimensionless
Description: <p>FLAG Manganese<br /><br />Quality flags are indicated as:<br />2 = acceptable<br />3 = questionable<br /></p>
http://lod.bco-dmo.org/id/dataset-parameter/29275.rdf
Name: Fe
Units: nmol/L
Description: <p>Iron<br /><br />For values below the analytical detection limit values are indicated as 'BDL'.<br /><br />Quality flags are indicated as:<br />2 = acceptable<br />3 = questionable<br /></p>
http://lod.bco-dmo.org/id/dataset-parameter/29276.rdf
Name: FLAG_Fe
Units: Dimensionless
Description: <p>FLAG Fe<br /><br />Quality flags are indicated as:<br />2 = acceptable<br />3 = questionable<br /></p>
http://lod.bco-dmo.org/id/dataset-parameter/29277.rdf
Name: Ni
Units: nmol/L
Description: <p>Nickel<br /><br />For values below the analytical detection limit values are indicated as 'BDL'.<br /><br />Quality flags are indicated as:<br />2 = acceptable<br />3 = questionable<br /></p>
http://lod.bco-dmo.org/id/dataset-parameter/29278.rdf
Name: FLAG_Ni
Units: Dimensionless
Description: <p>FLAG Nickel<br /><br />Quality flags are indicated as:<br />2 = acceptable<br />3 = questionable<br /></p>
http://lod.bco-dmo.org/id/dataset-parameter/29279.rdf
Name: Cu
Units: nmol/L
Description: <p>Copper<br /><br />For values below the analytical detection limit values are indicated as 'BDL'.<br /><br />Quality flags are indicated as:<br />2 = acceptable<br />3 = questionable<br /></p>
http://lod.bco-dmo.org/id/dataset-parameter/29280.rdf
Name: FLAG_Cu
Units: Dimensionless
Description: <p>FLAG Copper<br /><br />Quality flags are indicated as:<br />2 = acceptable<br />3 = questionable<br /></p>
http://lod.bco-dmo.org/id/dataset-parameter/29281.rdf
Name: Zn
Units: nmol/L
Description: <p>Zinc<br /><br />For values below the analytical detection limit values are indicated as 'BDL'.<br /><br />Quality flags are indicated as:<br />2 = acceptable<br />3 = questionable<br /></p>
http://lod.bco-dmo.org/id/dataset-parameter/29282.rdf
Name: FLAG_Zn
Units: Dimensionless
Description: <p>FLAG Zinc<br /><br />Quality flags are indicated as:<br />2 = acceptable<br />3 = questionable<br /></p>
http://lod.bco-dmo.org/id/dataset-parameter/29283.rdf
Name: As
Units: nmol/L
Description: <p>Arsenic<br /><br />For values below the analytical detection limit values are indicated as 'BDL'.<br /><br />Quality flags are indicated as:<br />2 = acceptable<br />3 = questionable<br /></p>
http://lod.bco-dmo.org/id/dataset-parameter/29284.rdf
Name: FLAG_As
Units: Dimensionless
Description: <p>FLAG Arsenic<br /><br />Quality flags are indicated as:<br />2 = acceptable<br />3 = questionable<br /></p>
http://lod.bco-dmo.org/id/dataset-parameter/29285.rdf
Name: Br
Units: nmol/L
Description: <p>Bromine<br /><br />For values below the analytical detection limit values are indicated as 'BDL'.<br /><br />Quality flags are indicated as:<br />2 = acceptable<br />3 = questionable<br /></p>
http://lod.bco-dmo.org/id/dataset-parameter/29286.rdf
Name: FLAG_Br
Units: Dimensionless
Description: <p>FLAG Bromine<br /><br />Quality flags are indicated as:<br />2 = acceptable<br />3 = questionable<br /></p>
http://lod.bco-dmo.org/id/dataset-parameter/29287.rdf
Name: Sr
Units: nmol/L
Description: <p>Strontium<br /><br />For values below the analytical detection limit values are indicated as 'BDL'.<br /><br />Quality flags are indicated as:<br />2 = acceptable<br />3 = questionable<br /></p>
http://lod.bco-dmo.org/id/dataset-parameter/29288.rdf
Name: FLAG_Sr
Units: Dimensionless
Description: <p>FLAG Strontium<br /><br />Quality flags are indicated as:<br />2 = acceptable<br />3 = questionable<br /></p>
http://lod.bco-dmo.org/id/dataset-parameter/29289.rdf
Name: Pb
Units: nmol/L
Description: <p>Lead<br /><br />For values below the analytical detection limit values are indicated as 'BDL'.<br /><br />Quality flags are indicated as:<br />2 = acceptable<br />3 = questionable<br /></p>
http://lod.bco-dmo.org/id/dataset-parameter/29290.rdf
Name: FLAG_Pb
Units: Dimensionless
Description: <p>FLAG Lead<br /><br />Quality flags are indicated as:<br />2 = acceptable<br />3 = questionable<br /></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
95847
https://datadocs.bco-dmo.org/file/933jz4YcR33KlQ/A16N_Particulate.csv
A16N_Particulate.csv
Primary data file for dataset ID 3702
download
https://osprey.bco-dmo.org/dataset/3702/data/download
download
onLine
dataset
<p><strong>Sampling and Analytical Methodology:</strong></p>
<p>Seawater samples were collected from the surface ocean to depths of 750-1000 m, then sub-sampled for suspended particulate matter under trace-element-clean conditions (see Measures et al., 2008 for details). Briefly, suspended particulate matter samples were collected by pressurizing GO-FLO bottles with &lt;10 psi filtered, compressed air. Samples were filtered through acid-cleaned 0.4 μm polycarbonate filters (Nuclepore) in polypropylene holders. Acid-cleaned backing filters of mixed cellulose esters were used to ensure even loading on sample filters. Samples were rinsed while on the filter holders with 15-20 mL deionized (DI) water adjusted to pH 8 with ammonium hydroxide from the edges to the center, with a low vacuum applied to avoid loss or re-distribution of particles. Filtration was started approximately 30 to 60 minutes after water samples were collected and was generally completed within 60 minutes.</p>
<p>Particulate trace element concentrations were determined by energy-dispersive X-ray fluorescence (ED-XRF) using a thin film technique described by Feely et al. (1991). An optical subsample of each filter was analyzed on a Thermo Fisher Quant'X equipped with a Rhodium Target X-Ray tube and an electronically cooled, lithium-drifted solid state detector. X-rays for primary sample excitation were filtered for optimum control of peak-to-background ratios. Standards for calibration consisted of commercial thin film standards (MicroMatter), geochemical reference sample material MAG-1 (Gladney and Roelandts, 1988) finely ground and loaded onto polycarbonate filters (Feely et al., 1991), and a series of standards prepared using a modification of the method reported by Holynska and Bisiniek (1976) using sodium diethyldithiocarbamate (NaDDTC) to quantitatively precipitate trace metals from a solution of known concentration. These standards were prepared using a 1% NaDDTC solution that was added to trace metal solutions at pH 4 with a ligand-to-metal ratio of 4:1. The resulting precipitate was filtered over an acid-cleaned, 0.4 μm polycarbonate Nuclepore filter. Procedural blanks were made by addition of a NaDDTC solution to a sample of acidified DI water followed by filtration. MicroMatter and MAG-1 standards were used to create individual standard curves for all elements; standard curves for Fe and Mn also included NaDDTC standards.</p>
<p>Four different excitation conditions, all conducted under a vacuum atmosphere, were used for sample analysis and are detailed along with minimum determination limits (MDL) in <a href="http://bcodata.whoi.edu//CLIVAR_AEROSOL/CLIVAR_A16N_Particulate_Data_metadata_table1.pdf" target="_blank">Table 1</a>. MDLs are defined as 3 times the square root of the background intensity measured from a standard of known concentration:</p>
<p>MDL = ( 3 * √I<sub>b</sub>)/(I<sub>p</sub>/conc)</p>
<p>where <em>I</em><sub><em>b</em></sub> is the background intensity,<em> I</em><sub><em>p</em></sub> is the peak intensity, and <em>conc</em> is the concentration of the standard. MicroMatter standards were used to calculate MDLs.</p>
<p><strong>Related files and references:&nbsp; </strong><br />
Barrett, Pamela M., Resing, Joseph A., Buck, Nathaniel J., Buck, Clifton S., Landing, William M., Measures, Christopher I., The trace element composition of suspended particulate matter in the upper 1000 m of the eastern North Atlantic Ocean: A16N, Marine Chemistry (2012), doi: 10.1016/j.marchem.2012.07.006.<br />
<br />
Feely, R.A., Massoth, G.J., Lebon, G.T., 1991. Sampling of marine particulate matter and analysis by x-ray fluorescence spectrometry. In: Hurd, D.C. and Spencer, D.W. (eds.), Marine Particles: Analysis and Characterization, AGU Geophysical Monograph Series, p. 251-257.<br />
<br />
Gladney, E.S., Roelandts, I., 1988. 1987 Compilation of elemental concentration data for USGS BHVO-1, MAG-1, QLO-1, RGM-1, SCo-1, SDC-1, SGR-1 and STM-1. Geostandards Newsl. 12 (2), 253–362.<br />
<br />
Holynska, B., Bisiniek, K., 1976. Determination of trace amounts of metals in saline water by energy dispersive XRF using the NaDDTC preconcentration. J. Radioanal. Nucl. Chem. 31, 159–166.<br />
<br />
Measures, C.I., Landing, W.M., Brown, M.T., Buck, C.S., 2008. A commercially available rosette system for trace metal-clean sampling. Limnology and Oceanography Methods 6, 384-394.</p>
Specified by the Principal Investigator(s)
<p><strong>Data Processing: </strong><br />
ED-XRF output is in ng cm-2 and is reported here as seawater concentrations (nM) using the following formula for each trace element of interest.<br />
<br />
seawater concentration (nmol L-1) = filter concentration (ng cm-2) * filter sample area (cm2) / filtered seawater volume (L) / atomic weight (g/mol)<br />
<br />
The filter sample collection area is 12.41 cm2. The volume of seawater filtered per sample ranged from 2 to 12 L, average 8 L.<br />
<br />
For values below the analytical detection limit, values are indicated as "BDL"<br />
Quality flags are indicated as:<br />
2 = acceptable<br />
3 = questionable</p>
<p><strong>BCO-DMO Processing/Edits</strong><br />
- Data generated from original file: "BCO-DMO particulate data A16N.xlsx" contributed by Pamela Barrett<br />
- Date reformatted to YYYYMMDD<br />
- Parameter names modified to conform to BCO-DMO conventions (blanks to underscores, etc.)<br />
- "FLAG" parameters modified to include element name in parameter name (i.e. FLAG -&gt; FLAG_Fe)</p>
Specified by the Principal Investigator(s)
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
CTD Sea-Bird SBE 911plus
CTD Sea-Bird SBE 911plus
PI Supplied Instrument Name: CTD Sea-Bird SBE 911plus Instrument Name: CTD Sea-Bird SBE 911plus Instrument Short Name:CTD SBE 911plus Instrument Description: The Sea-Bird SBE 911 plus is a type of CTD instrument package for continuous measurement of conductivity, temperature and pressure. The SBE 911 plus includes the SBE 9plus Underwater Unit and the SBE 11plus Deck Unit (for real-time readout using conductive wire) for deployment from a vessel. The combination of the SBE 9 plus and SBE 11 plus is called a SBE 911 plus. The SBE 9 plus uses Sea-Bird's standard modular temperature and conductivity sensors (SBE 3 plus and SBE 4). The SBE 9 plus CTD can be configured with up to eight auxiliary sensors to measure other parameters including dissolved oxygen, pH, turbidity, fluorescence, light (PAR), light transmission, etc.). more information from Sea-Bird Electronics Community Standard Description: http://vocab.nerc.ac.uk/collection/L22/current/TOOL0058/
GO-FLO Bottle
GO-FLO Bottle
PI Supplied Instrument Name: GO-FLO Bottle 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 Fisher Quant'X Spectrometer
Thermo Fisher Quant'X Spectrometer
PI Supplied Instrument Name: Thermo Fisher Quant'X Spectrometer PI Supplied Instrument Description:Thermo Fisher Quant'X
An optical subsample of each filter was analyzed on a Thermo Fisher Quant’X equipped with a Rhodium Target X-Ray tube and an electronically cooled, lithium-drifted solid state detector. Instrument Name: Spectrometer Instrument Short Name:Spectrometer Instrument Description: A spectrometer is an optical instrument used to measure properties of light over a specific portion of the electromagnetic spectrum. Community Standard Description: http://vocab.nerc.ac.uk/collection/L22/current/TOOL0460/
Cruise: RB-03-04B
RB-03-04B
Community Standard Description
International Council for the Exploration of the Sea
NOAA Ship Ronald H. Brown
vessel
RB-03-04B
Dr John L. Bullister
National Oceanic and Atmospheric Administration
http://bcodata.whoi.edu/CLIVAR_AEROSOL/CLIVAR_A16N_2003ado.pdf
Report describing RB-03-04B
Cruise: RB-03-04C
RB-03-04C
Community Standard Description
International Council for the Exploration of the Sea
NOAA Ship Ronald H. Brown
vessel
RB-03-04C
Dr John L. Bullister
National Oceanic and Atmospheric Administration
http://bcodata.whoi.edu/CLIVAR_AEROSOL/CLIVAR_A16N_2003ado.pdf
Report describing RB-03-04C
Community Standard Description
International Council for the Exploration of the Sea
NOAA Ship Ronald H. Brown
vessel