http://lod.bco-dmo.org/id/dataset/764023
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
2019-04-01
ISO 19115-2 Geographic Information - Metadata - Part 2: Extensions for Imagery and Gridded Data
ISO 19115-2:2009(E)
Shipboard FIA dissolved Al, Fe, and Mn from samples collected by pump during USCGC Healy cruise HLY1502 (GN01) in the Canada and Makarov Basins of the Arctic Ocean from August to October 2015
2020-09-28
publication
2020-09-28
revision
Marine Biological Laboratory/Woods Hole Oceanographic Institution Library (MBLWHOI DLA)
2022-05-13
publication
https://doi.org/10.26008/1912/bco-dmo.764023.3
Christopher I. Measures
University of Hawaii
principalInvestigator
Mariko Hatta
University of Hawaii
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: Measures, C. I., Hatta, M. (2022) Shipboard FIA dissolved Al, Fe, and Mn from samples collected by pump during USCGC Healy cruise HLY1502 (GN01) in the Canada and Makarov Basins of the Arctic Ocean from August to October 2015. Biological and Chemical Oceanography Data Management Office (BCO-DMO). (Version 3) Version Date 2020-09-28 [if applicable, indicate subset used]. doi:10.26008/1912/bco-dmo.764023.3 [access date]
Shipboard FIA dissolved Al, Fe, and Mn (0.2 um AcroPak filter) from samples collected by pump Dataset Description: Methods and Sampling: <p>Water samples (water column,&nbsp;surface water, water under sea-ice, sea-ice, snow, and melt pond) were collected at 28 stations from the USCG Healy during the GEOTRACES Western Arctic research expedition, which took place during the US GEOTRACES Arctic cruise aboard USCGC Healy (HLY1502) from August 9 to October 11, 2015 in the Arctic Ocean. This dataset contains data resulting from PUMP samples.</p>
<p>Surface water samples were collected from a surface pump when sea ice conditions permitted. Surface pump samples were collected by zodiac, and a trace metal clean peristaltic pump following the GEOTRACES Program Cookbook sampling recommendations, and in accordance with previous collection protocols (Bruland et al. 2005). The pump system consisted of: a&nbsp;Teflon coated Tygon tubing and a rotary pump with plastic wetted parts (IWAKI magnetic drive pump, model WMD-30LFY-115) deployed from one of the USCGC Healy&nbsp;Rigid Hull Inflatable Boats&nbsp;(26&nbsp;ft (7.9&nbsp;m)). Samples were collected into a pre-acid cleaned 20L carboy jug and they were filtered though 0.2uM Polycarbonate (PCTE) cartridge filters in the clean container on the ship.</p>
<div>Additional seawater samples were collected at nominal depths of 1, 5, and 20m from under the sea ice at 6 stations, using a portable pumping system (same as described above) deployed through a hole at the station's sea ice floe. The hole was made with an ice corer (Kovacs 9 cm diameter Mak II corer), and allowed to sit undisturbed for ~ 1hr under a canvas tent prior to sampling. At these same stations, samples of melted snow (6 samples), sea-ice (5 samples), and where available melt pond (5 samples) were also obtained. These latter samples were also filtered through the 0.2 uM Acropak filter.&nbsp;</div>
<p>Samples were drawn into pre-numbered 125 ml PMP bottles after three rinses and were stored in plastic bags in the dark at room temperature before determination which was usually within 12-36 hours of collection.</p>
<p>Samples were analyzed shipboard for dissolved Al, Fe &amp; Mn using flow injection analysis methods (Resing and Measures, 1994; Measures et al., 1995, Resing and Mottl, 1992 respectively). Prior to determination samples were acidified by the addition of 125 ul sub-boiling distilled 6N HCl and were microwaved in groups of 4 for 3 minutes in a 900 W microwave oven to achieve a temperature of 60 +/- 10 ˚C. Samples were allowed to cool for at least 1 hour prior to determination. Samples were determined in groups of 8.</p>
<p><strong>For preparation for standard solutions:</strong> Shipboard mixed standards (Al and Fe, Mn) were prepared in the shore-based laboratory by serial dilution of commercial Al, Fe, and Mn standards (BDH Aristar) into distilled water which was acidified with the equivalent of 4 ml sub-boiled 6N HCl. Standards for instrument calibration were prepared daily from filtered seawater by acidifying 1 L of low Fe seawater from a previous cast with 1 ml of 6N HCl and microwaving for 5 minutes to reach a temperature of 60 +/- 10˚C. After 1 hour, 200 +/- 2 ml of the cooled seawater was added to each of three 250 ml PMP bottles each of which had been rinsed three times with the microwaved seawater and shaken dry. Working standards were prepared by adding 0, +100uL, +200uL spikes of the shipboard mixed standard to these bottles, to yield a standard curve of +10.58nM and +21.16nM for Al, +0.528nM and +1.057nM for Fe, +1.45nM and +2.90nM for Mn. The system blank from the addition of the acid and buffer to samples was determined by double spiking a replicate sample i.e. by adding 2 x 125 ul 6N HCl and 5 ml of sample buffer to the replicate bottle and comparing the resulting signal to the original sample.</p>
<p><strong>For dissolved Al analysis:&nbsp;</strong>Dissolved Al was determined using a Flow Injection Analysis scheme with fluorometric detection. Major components were a Rabbit peristaltic pump, a Dynamax FL-1 flourometer, a Rainin A/D board and a Macintosh G3 computer running Rainin MacIntegrator v 1.4.3 to log and reduce data. The analytical scheme produces a complex between lumogallion and dissolved Al which when excited at 484 nm produces flourescence at 552 nm. Detailed description of the methodology is published in Resing and Measures (1994). A 3-minute pre-concentration of sample (~9 ml) onto an 8-hydroxyquinoline (8-HQ) resin column yielded a detection limit of 0.27 and a precision of 2.1% at 12.8 nM.</p>
<p><strong>For dissolved Fe analysis:</strong> Dissolved Fe was determined using a Flow Injection Analysis scheme with spectrophotometric detection (Rainin Dynamax UV-C). Major components were a Rabbit peristaltic pump, a Rainin Dynamax UV-C, a Rainin A/D board and a Macintosh G3 computer running Rainin MacIntegrator v 1.4.3 to log and reduce data. The spectrophotometric detection of the iron eluted from the column is achieved through its catalytic effect on the oxidation of N,N-dimethylp-phenylenediamine dihydrochloride (DPD) the oxidized product is measured at 514 nm. Detailed description of the methodology is published in Measures et al (1995). A 3-minute pre-concentration of sample (~9 ml) onto an 8-hydroxyquinoline (8-HQ) resin column yielded a detection limit of 0.090 nM and a precision of 0.67% at 2.96nM.</p>
<p><strong>For dissolved Mn analysis:</strong> Dissolved Mn was determined using a Flow Injection Analysis scheme with spectrophotometric detection (Rainin Dynamax UV-C). Major components were a Rabbit peristaltic pump, a Rainin Dynamax UV-C, a Rainin A/D board and a Macintosh G3 computer running Rainin MacIntegrator v 1.4.3 to log and reduce data. The spectrophotometric detection of the manganese eluted from the column is achieved through its catalytic effect on the formation of malachite green which is measured at 620 nm. Detailed description of the methodology is published in Resing and Mottl (1992). A 3-minute pre-concentration of sample (~9 ml) onto an 8-hydroxyquinoline (8-HQ) resin column yielded a detection limit of 0.55 nM and a precision of 1.16% at 2.7 nM.</p>
<p><strong>Calculation of each dissolved trace element concentrations:</strong> Calculation of sample concentrations was by dividing the peak height derived from sample using the A/D software by the calculated slope of the standard curve. Variations in the slope of the standard curve during a day's run were corrected by the following procedure.</p>
<p>The change in the value of the slope of the standard curve between each run of standards was divided by the number of samples run between those standards to provide a calculated value for the slope of the standard curve at the point each sample was run. The value of the peak height for each sample was then recalculated by the estimated ratio of the standard curve slope at the point that sample was run. The estimate of the slope at each sample run is calculated by: (Initial slope + (incremental change per sample X # of samples run since initial standard was run)). The sample concentration is then calculated from the initial standard curve slope.</p>
<p>The analytical blanks of dissolved Fe and Mn were determined by the shore-based ICPMS data that was measured by co-PI Dr. J. Fitzsimmons (Texas A&amp;M University). The ICPMS data and its metadata will be submitted separately. The blank corrected FIA data was obtained from the intercept of the correlation plot between the ICPMS data and FIA data on each of the days the FIA was run.</p>
<p><strong>Intercalibration for dissolved Al:</strong> GEOTRACES standard seawater and internal standard seawater were analyzed periodically. A large batch of seawater was acidified prior to the cruise and used as a primary standard during measurements. This standard seawater was run along with each sample analysis. Our laboratory has participated the GEOTRACES intercalibration effort using this flow injection method.</p>
<p>We report our laboratory values for the GEOTRACES GS standard analyses using this flow injection method to be: GEOTRACES GS = 29.63±1.15nM (n=2). Using 1L=1.027kg, our Al value is calculated as 28.85±1.12 nmol/kg and it is within the error of the consensus value (27.5±0.2 nmol/kg).</p>
<p>These results are in good agreement with this from the GEOTRACES intercalibration effort for Al and demonstrate that the methodologies employed to produce this dataset detect concentrations within the standard deviation of current consensus values.</p>
<p>The Al data from the GEOTRACES Arctic Ocean cruise were compared with several published data set in the various basins in the Arctic Ocean (Makarov Basin, Middag et al., 2009), the Amundsen Basin (Middag et al., 2009), and the Canada Basin (Giesbrecht et al 2013) which all show very similar results throughout the water column.</p>
Funding provided by NSF Division of Ocean Sciences (NSF OCE) Award Number: OCE-1439253 Award URL: http://www.nsf.gov/awardsearch/showAward.do?AwardNumber=1439253
completed
Christopher I. Measures
University of Hawaii
808-956-8693
Department of Oceanography, University of Hawai`i at Manoa 1000 Pope Road, MSB 512
Honolulu
HI
96822
USA
chrism@soest.hawaii.edu
pointOfContact
Mariko Hatta
University of Hawaii
2-15 Natsushima-cho
Yokosuka
237-0061
Japan
mhatta@jamstec.go.jp
pointOfContact
asNeeded
Dataset Version: 3
Unknown
Station
LONGITUDE
LATITUDE
LONGITUDE_360
Depth
GT_Sample_ID
Al_D_CONC_BOAT_PUMP_p1iths
Flag_Al_D_CONC_BOAT_PUMP_p1iths
Fe_D_CONC_PUMP
Fe_D_CONC_PUMP_QF
Mn_D_CONC_PUMP
Mn_D_CONC_PUMP_QF
FIA
Flow injection for dFe DPD system with Rainin Dynamax Absorbance detector UV-C
Flow injection for dMn system with Rainin Dynamax Absorbance detector UV-C
Flow injection for dAl lumogallion system with Rainin Dynamax FL-1 flourometer
IWAKI magnetic drive pump
theme
None, User defined
station
longitude
latitude
longitude from 0 to 360 degrees
depth
sample identification
Aluminum
quality flag
Iron
Manganese
featureType
BCO-DMO Standard Parameters
Flow Injection Analyzer
Flow Injection Analyzer
Flow Injection Analyzer
Flow injection lumogallion system with fluorometer
Pump
instrument
BCO-DMO Standard Instruments
HLY1502
service
Deployment Activity
Western Arctic Ocean
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.
GEOTRACES Arctic Section: Shipboard determination of key trace elements
https://www.bco-dmo.org/project/757016
GEOTRACES Arctic Section: Shipboard determination of key trace elements
<p><em>NSF Award Abstract:</em><br />
In this project, investigators participating in the 2015 U.S. GEOTRACES Arctic expedition will make shipboard measurements of dissolved aluminum, iron, and manganese in seawater, ice, snow, and melt pond samples collected during the cruise. In common with other national initiatives in the International GEOTRACES Program, the goals of the U.S. Arctic expedition are to identify processes and quantify fluxes that control the distributions of key trace elements and isotopes in the ocean, and to establish the sensitivity of these distributions to changing environmental conditions. Some trace elements are essential to life, others are known biological toxins, and still others are important because they can be used as tracers of a variety of physical, chemical, and biological processes in the sea. This project will be of particular importance to the success of the overall Arctic expedition because measurements of trace metals in seawater require highly-specialized clean sampling techniques to prevent contamination. Accordingly, the shipboard measurements made by this scientific team will allow for the early detection and rectification of any sample contamination problems while still at sea. In terms of broader impacts, education and training of the next generation of marine trace element scientists, including undergraduate and graduate students, as well as public outreach will be key aspects of this project.</p>
<p>The shipboard determinations of dissolved aluminum, iron, and manganese in this study will provide near real-time insights into the distribution of these parameters, which can be used to potentially modify sampling strategies and can also be used to identify any systemic sampling contamination issues during the GEOTRACES Arctic expedition. Definitive data for dissolved iron and manganese will be produced by shore-based ICP MS, a type of mass spectrometry capable of detecting metals at very low concentrations. However, since dissolved aluminum data cannot be determined by shore-based ICP MS, the shipboard data set collected as part of this project will provide the definitive data set for this key GEOTRACES parameter. In addition, the researchers will undertake high resolution water sampling in the upper 10 m of the water column to characterize the trace metal distribution in this highly stratified region, which cannot be sampled by a conventional rosette. This sampling will be conducted from the edge of ice-floes or a small boat, away from the disturbing effects of the research vessel.</p>
GEOTRACES Arctic Al Fe Mn
largerWorkCitation
project
eng; USA
oceans
Western Arctic Ocean
-179
-147.8
78.2
90
2015-08-12
2015-10-08
0
BCO-DMO catalogue of parameters from Shipboard FIA dissolved Al, Fe, and Mn from samples collected by pump during USCGC Healy cruise HLY1502 (GN01) in the Canada and Makarov Basins of the Arctic Ocean from August to October 2015
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/825678.rdf
Name: Station
Units: unitless
Description: Station number
http://lod.bco-dmo.org/id/dataset-parameter/825679.rdf
Name: LONGITUDE
Units: degrees East
Description: Longitude; -180-180. Positive values = East.
http://lod.bco-dmo.org/id/dataset-parameter/825680.rdf
Name: LATITUDE
Units: degrees North
Description: Latitude North; 0-90. Positive values = North.
http://lod.bco-dmo.org/id/dataset-parameter/825681.rdf
Name: LONGITUDE_360
Units: degrees East
Description: Longitude from 0 to 360 degrees East.
http://lod.bco-dmo.org/id/dataset-parameter/825682.rdf
Name: Depth
Units: meters (m)
Description: Sample depth
http://lod.bco-dmo.org/id/dataset-parameter/825683.rdf
Name: GT_Sample_ID
Units: unitless
Description: GEOTRACES sample number
http://lod.bco-dmo.org/id/dataset-parameter/825684.rdf
Name: Al_D_CONC_BOAT_PUMP_p1iths
Units: nanomoles per liter (nmol/L)
Description: Dissolved Aluminum concentration
http://lod.bco-dmo.org/id/dataset-parameter/825685.rdf
Name: Flag_Al_D_CONC_BOAT_PUMP_p1iths
Units: unitless
Description: Quality flag for Al_D_CONC_BOAT_PUMP_p1iths. Definitions: 1 = Below detection limit (Measurement was determined but was found to be below the detection limit); 2 = Good; 3 = Questionable/suspect; 4 = Bad; 9 = Missing data (no sample).
http://lod.bco-dmo.org/id/dataset-parameter/825686.rdf
Name: Fe_D_CONC_PUMP
Units: nanomoles per liter (nmol/L)
Description: Dissolved Iron concentration
http://lod.bco-dmo.org/id/dataset-parameter/825687.rdf
Name: Fe_D_CONC_PUMP_QF
Units: unitless
Description: Quality flag for Fe_D_CONC_PUMP. Definitions: 1 = Below detection limit (Measurement was determined but was found to be below the detection limit); 2 = Good; 3 = Questionable/suspect; 4 = Bad; 9 = Missing data (no sample).
http://lod.bco-dmo.org/id/dataset-parameter/825688.rdf
Name: Mn_D_CONC_PUMP
Units: nanomoles per liter (nmol/L)
Description: Dissolved Manganese concentration
http://lod.bco-dmo.org/id/dataset-parameter/825689.rdf
Name: Mn_D_CONC_PUMP_QF
Units: unitless
Description: Quality flag for Mn_D_CONC_PUMP. Definitions: 1 = Below detection limit (Measurement was determined but was found to be below the detection limit); 2 = Good; 3 = Questionable/suspect; 4 = Bad; 9 = Missing data (no sample).
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
1019
https://darchive.mblwhoilibrary.org/bitstream/1912/28726/1/dataset-764023_gn01-fia-al-fe-mn-pump__v3.tsv
download
https://doi.org/10.26008/1912/bco-dmo.764023.3
download
onLine
dataset
<p>Water samples (water column,&nbsp;surface water, water under sea-ice, sea-ice, snow, and melt pond) were collected at 28 stations from the USCG Healy during the GEOTRACES Western Arctic research expedition, which took place during the US GEOTRACES Arctic cruise aboard USCGC Healy (HLY1502) from August 9 to October 11, 2015 in the Arctic Ocean. This dataset contains data resulting from PUMP samples.</p>
<p>Surface water samples were collected from a surface pump when sea ice conditions permitted. Surface pump samples were collected by zodiac, and a trace metal clean peristaltic pump following the GEOTRACES Program Cookbook sampling recommendations, and in accordance with previous collection protocols (Bruland et al. 2005). The pump system consisted of: a&nbsp;Teflon coated Tygon tubing and a rotary pump with plastic wetted parts (IWAKI magnetic drive pump, model WMD-30LFY-115) deployed from one of the USCGC Healy&nbsp;Rigid Hull Inflatable Boats&nbsp;(26&nbsp;ft (7.9&nbsp;m)). Samples were collected into a pre-acid cleaned 20L carboy jug and they were filtered though 0.2uM Polycarbonate (PCTE) cartridge filters in the clean container on the ship.</p>
<div>Additional seawater samples were collected at nominal depths of 1, 5, and 20m from under the sea ice at 6 stations, using a portable pumping system (same as described above) deployed through a hole at the station's sea ice floe. The hole was made with an ice corer (Kovacs 9 cm diameter Mak II corer), and allowed to sit undisturbed for ~ 1hr under a canvas tent prior to sampling. At these same stations, samples of melted snow (6 samples), sea-ice (5 samples), and where available melt pond (5 samples) were also obtained. These latter samples were also filtered through the 0.2 uM Acropak filter.&nbsp;</div>
<p>Samples were drawn into pre-numbered 125 ml PMP bottles after three rinses and were stored in plastic bags in the dark at room temperature before determination which was usually within 12-36 hours of collection.</p>
<p>Samples were analyzed shipboard for dissolved Al, Fe &amp; Mn using flow injection analysis methods (Resing and Measures, 1994; Measures et al., 1995, Resing and Mottl, 1992 respectively). Prior to determination samples were acidified by the addition of 125 ul sub-boiling distilled 6N HCl and were microwaved in groups of 4 for 3 minutes in a 900 W microwave oven to achieve a temperature of 60 +/- 10 ˚C. Samples were allowed to cool for at least 1 hour prior to determination. Samples were determined in groups of 8.</p>
<p><strong>For preparation for standard solutions:</strong> Shipboard mixed standards (Al and Fe, Mn) were prepared in the shore-based laboratory by serial dilution of commercial Al, Fe, and Mn standards (BDH Aristar) into distilled water which was acidified with the equivalent of 4 ml sub-boiled 6N HCl. Standards for instrument calibration were prepared daily from filtered seawater by acidifying 1 L of low Fe seawater from a previous cast with 1 ml of 6N HCl and microwaving for 5 minutes to reach a temperature of 60 +/- 10˚C. After 1 hour, 200 +/- 2 ml of the cooled seawater was added to each of three 250 ml PMP bottles each of which had been rinsed three times with the microwaved seawater and shaken dry. Working standards were prepared by adding 0, +100uL, +200uL spikes of the shipboard mixed standard to these bottles, to yield a standard curve of +10.58nM and +21.16nM for Al, +0.528nM and +1.057nM for Fe, +1.45nM and +2.90nM for Mn. The system blank from the addition of the acid and buffer to samples was determined by double spiking a replicate sample i.e. by adding 2 x 125 ul 6N HCl and 5 ml of sample buffer to the replicate bottle and comparing the resulting signal to the original sample.</p>
<p><strong>For dissolved Al analysis:&nbsp;</strong>Dissolved Al was determined using a Flow Injection Analysis scheme with fluorometric detection. Major components were a Rabbit peristaltic pump, a Dynamax FL-1 flourometer, a Rainin A/D board and a Macintosh G3 computer running Rainin MacIntegrator v 1.4.3 to log and reduce data. The analytical scheme produces a complex between lumogallion and dissolved Al which when excited at 484 nm produces flourescence at 552 nm. Detailed description of the methodology is published in Resing and Measures (1994). A 3-minute pre-concentration of sample (~9 ml) onto an 8-hydroxyquinoline (8-HQ) resin column yielded a detection limit of 0.27 and a precision of 2.1% at 12.8 nM.</p>
<p><strong>For dissolved Fe analysis:</strong> Dissolved Fe was determined using a Flow Injection Analysis scheme with spectrophotometric detection (Rainin Dynamax UV-C). Major components were a Rabbit peristaltic pump, a Rainin Dynamax UV-C, a Rainin A/D board and a Macintosh G3 computer running Rainin MacIntegrator v 1.4.3 to log and reduce data. The spectrophotometric detection of the iron eluted from the column is achieved through its catalytic effect on the oxidation of N,N-dimethylp-phenylenediamine dihydrochloride (DPD) the oxidized product is measured at 514 nm. Detailed description of the methodology is published in Measures et al (1995). A 3-minute pre-concentration of sample (~9 ml) onto an 8-hydroxyquinoline (8-HQ) resin column yielded a detection limit of 0.090 nM and a precision of 0.67% at 2.96nM.</p>
<p><strong>For dissolved Mn analysis:</strong> Dissolved Mn was determined using a Flow Injection Analysis scheme with spectrophotometric detection (Rainin Dynamax UV-C). Major components were a Rabbit peristaltic pump, a Rainin Dynamax UV-C, a Rainin A/D board and a Macintosh G3 computer running Rainin MacIntegrator v 1.4.3 to log and reduce data. The spectrophotometric detection of the manganese eluted from the column is achieved through its catalytic effect on the formation of malachite green which is measured at 620 nm. Detailed description of the methodology is published in Resing and Mottl (1992). A 3-minute pre-concentration of sample (~9 ml) onto an 8-hydroxyquinoline (8-HQ) resin column yielded a detection limit of 0.55 nM and a precision of 1.16% at 2.7 nM.</p>
<p><strong>Calculation of each dissolved trace element concentrations:</strong> Calculation of sample concentrations was by dividing the peak height derived from sample using the A/D software by the calculated slope of the standard curve. Variations in the slope of the standard curve during a day's run were corrected by the following procedure.</p>
<p>The change in the value of the slope of the standard curve between each run of standards was divided by the number of samples run between those standards to provide a calculated value for the slope of the standard curve at the point each sample was run. The value of the peak height for each sample was then recalculated by the estimated ratio of the standard curve slope at the point that sample was run. The estimate of the slope at each sample run is calculated by: (Initial slope + (incremental change per sample X # of samples run since initial standard was run)). The sample concentration is then calculated from the initial standard curve slope.</p>
<p>The analytical blanks of dissolved Fe and Mn were determined by the shore-based ICPMS data that was measured by co-PI Dr. J. Fitzsimmons (Texas A&amp;M University). The ICPMS data and its metadata will be submitted separately. The blank corrected FIA data was obtained from the intercept of the correlation plot between the ICPMS data and FIA data on each of the days the FIA was run.</p>
<p><strong>Intercalibration for dissolved Al:</strong> GEOTRACES standard seawater and internal standard seawater were analyzed periodically. A large batch of seawater was acidified prior to the cruise and used as a primary standard during measurements. This standard seawater was run along with each sample analysis. Our laboratory has participated the GEOTRACES intercalibration effort using this flow injection method.</p>
<p>We report our laboratory values for the GEOTRACES GS standard analyses using this flow injection method to be: GEOTRACES GS = 29.63±1.15nM (n=2). Using 1L=1.027kg, our Al value is calculated as 28.85±1.12 nmol/kg and it is within the error of the consensus value (27.5±0.2 nmol/kg).</p>
<p>These results are in good agreement with this from the GEOTRACES intercalibration effort for Al and demonstrate that the methodologies employed to produce this dataset detect concentrations within the standard deviation of current consensus values.</p>
<p>The Al data from the GEOTRACES Arctic Ocean cruise were compared with several published data set in the various basins in the Arctic Ocean (Makarov Basin, Middag et al., 2009), the Amundsen Basin (Middag et al., 2009), and the Canada Basin (Giesbrecht et al 2013) which all show very similar results throughout the water column.</p>
Specified by the Principal Investigator(s)
<p><strong>Quality flags for&nbsp;dissolved Al, Fe, and Mn:</strong><br />
1 = Below detection limit (Measurement was determined but was found to be below the detection limit);<br />
2 = Good;<br />
3 = Questionable/suspect;<br />
4 = Bad;<br />
9 = Missing data (no sample).</p>
<p><strong>BCO-DMO Processing:</strong><br />
- modified parameter names;<br />
- 08-April-2019: updated from version 1 to&nbsp;version 2;&nbsp;the original version (v1) contained longitude values in 0-360 only. v2 contains both -180-180 and 0-360;<br />
- 28-Sept-2020: updated to version 3 which includes the GEOTRACES DOoR barcoded names for Al parameters.</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
FIA
FIA
PI Supplied Instrument Name: FIA PI Supplied Instrument Description:Dissolved Fe was determined using a Flow Injection Analysis scheme with spectrophometric detection (Rainin Dynamax UV-C). Major components of the scheme include a Rabbit peristaltic pump, a Dynamax FL-1 fluorometer, a Rainin A/D board, and a Macintosh G3 computer running Rainin MacIntegrator v 1.4.3 to log and reduce data. Instrument Name: Flow Injection Analyzer Instrument Short Name:FIA Instrument Description: An instrument that performs flow injection analysis. Flow injection analysis (FIA) is an approach to chemical analysis that is accomplished by injecting a plug of sample into a flowing carrier stream. FIA is an automated method in which a sample is injected into a continuous flow of a carrier solution that mixes with other continuously flowing solutions before reaching a detector. Precision is dramatically increased when FIA is used instead of manual injections and as a result very specific FIA systems have been developed for a wide array of analytical techniques. Community Standard Description: http://vocab.nerc.ac.uk/collection/L05/current/LAB36/
Flow injection for dFe DPD system with Rainin Dynamax Absorbance detector UV-C
Flow injection for dFe DPD system with Rainin Dynamax Absorbance detector UV-C
PI Supplied Instrument Name: Flow injection for dFe DPD system with Rainin Dynamax Absorbance detector UV-C PI Supplied Instrument Description:Dissolved Fe was determined using a Flow Injection Analysis scheme with spectrophotometric detection (Rainin Dynamax UV-C). Major components were a Rabbit peristaltic pump, a Rainin Dynamax UV-C, a Rainin A/D board and a Macintosh G3 computer running Rainin MacIntegrator v 1.4.3 to log and reduce data. The spectrophotometric detection of the iron eluted from the column is achieved through its catalytic effect on the oxidation of N,N-dimethylp-phenylenediamine dihydrochloride (DPD) the oxidized product is measured at 514 nm. Instrument Name: Flow Injection Analyzer Instrument Short Name:FIA Instrument Description: An instrument that performs flow injection analysis. Flow injection analysis (FIA) is an approach to chemical analysis that is accomplished by injecting a plug of sample into a flowing carrier stream. FIA is an automated method in which a sample is injected into a continuous flow of a carrier solution that mixes with other continuously flowing solutions before reaching a detector. Precision is dramatically increased when FIA is used instead of manual injections and as a result very specific FIA systems have been developed for a wide array of analytical techniques. Community Standard Description: http://vocab.nerc.ac.uk/collection/L05/current/LAB36/
Flow injection for dMn system with Rainin Dynamax Absorbance detector UV-C
Flow injection for dMn system with Rainin Dynamax Absorbance detector UV-C
PI Supplied Instrument Name: Flow injection for dMn system with Rainin Dynamax Absorbance detector UV-C PI Supplied Instrument Description:Dissolved Mn was determined using a Flow Injection Analysis scheme with spectrophotometric detection (Rainin Dynamax UV-C). Major components were a Rabbit peristaltic pump, a Rainin Dynamax UV-C, a Rainin A/D board and a Macintosh G3 computer running Rainin MacIntegrator v 1.4.3 to log and reduce data. Instrument Name: Flow Injection Analyzer Instrument Short Name:FIA Instrument Description: An instrument that performs flow injection analysis. Flow injection analysis (FIA) is an approach to chemical analysis that is accomplished by injecting a plug of sample into a flowing carrier stream. FIA is an automated method in which a sample is injected into a continuous flow of a carrier solution that mixes with other continuously flowing solutions before reaching a detector. Precision is dramatically increased when FIA is used instead of manual injections and as a result very specific FIA systems have been developed for a wide array of analytical techniques. Community Standard Description: http://vocab.nerc.ac.uk/collection/L05/current/LAB36/
Flow injection for dAl lumogallion system with Rainin Dynamax FL-1 flourometer
Flow injection for dAl lumogallion system with Rainin Dynamax FL-1 flourometer
PI Supplied Instrument Name: Flow injection for dAl lumogallion system with Rainin Dynamax FL-1 flourometer PI Supplied Instrument Description:Dissolved Al was determined using a Flow Injection Analysis scheme with fluorometeric detection. The scheme produces a complex between lumogallion and dissolved Al. Major components of the scheme include a Rabbit peristaltic pump, a Dynamax FL-1 fluorometer, a Rainin A/D board, and a Macintosh G3 computer running Rainin MacIntegrator v 1.4.3 to log and reduce data. Instrument Name: Flow injection lumogallion system with fluorometer Instrument Short Name:FIA with Fluorometer Instrument Description: An analytical system used to determine concentrations of chemical species in a sample based on the fluorescence from the reaction between lumogallion and the species of interest. The system typically comprises individual components typically including pumps, injection and autosampler valves, preconcentration columns and a fluorometer. The system is normally uniquely assembled for each analysis.
(From SeaDataNet) Community Standard Description: http://vocab.nerc.ac.uk/collection/L22/current/TOOL0513/
IWAKI magnetic drive pump
IWAKI magnetic drive pump
PI Supplied Instrument Name: IWAKI magnetic drive pump PI Supplied Instrument Description:Seawater was collected using Teflon coated Tygon tubing and a rotary pump with plastic wetted parts (IWAKI magnetic drive pump, model WMD-30LFY-115). Instrument Name: Pump Instrument Short Name: Instrument Description: A pump is a device that moves fluids (liquids or gases), or sometimes slurries, by mechanical action. Pumps can be classified into three major groups according to the method they use to move the fluid: direct lift, displacement, and gravity pumps
Cruise: HLY1502
HLY1502
USCGC Healy
Community Standard Description
International Council for the Exploration of the Sea
USCGC Healy
vessel
HLY1502
David C. Kadko
Florida International University
https://datadocs.bco-dmo.org/docs/302/geotraces/GEOTRACES_ARCTIC/data_docs/cruise_reports/healy1502.pdf
Report describing HLY1502
USCGC Healy
Community Standard Description
International Council for the Exploration of the Sea
USCGC Healy
vessel