http://lod.bco-dmo.org/id/dataset/776552
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
2019-09-12
ISO 19115-2 Geographic Information - Metadata - Part 2: Extensions for Imagery and Gridded Data
ISO 19115-2:2009(E)
Iodine speciation measurements aboard R/V Roger Revelle and R/V Falkor in April and June 2018, respectively.
2019-09-12
publication
2019-09-12
revision
Marine Biological Laboratory/Woods Hole Oceanographic Institution Library (MBLWHOI DLA)
2020-03-23
publication
https://doi.org/10.26008/1912/bco-dmo.776552.1
James W. Moffett
University of Southern California
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: Moffett, J. (2020) Iodine speciation measurements aboard R/V Roger Revelle and R/V Falkor in April and June 2018, respectively. Biological and Chemical Oceanography Data Management Office (BCO-DMO). (Version 1) Version Date 2019-09-12 [if applicable, indicate subset used]. doi:10.26008/1912/bco-dmo.776552.1 [access date]
Iodine Speciation Dataset Description: <p>Iodine speciation measurements&nbsp;aboard R/V Roger Revelle and R/V Falkor in April and June 2018, respectively.</p> Methods and Sampling: <p>Iodate was measured using spectrophotometry based off of Rue et al. 1997. Iodide measured voltammetry based off of Luther et al. 1988. Iodate was converted to triiodide and measured on the spectrophotometer at 350 nm. Iodide was measured on a hanging drop mercury electrode at approximately -0.3 V. Excel was used to process CSV files from the spectrophotometer. Excel was also used to process data from the voltammeter.</p>
Funding provided by NSF Division of Ocean Sciences (NSF OCE) Award Number: OCE-1636332 Award URL: https://www.nsf.gov/awardsearch/show-award?AWD_ID=1636332
completed
James W. Moffett
University of Southern California
213-740-5626
Biological Sciences, Earth Sciences, and Civil and Environmental Engineering 3616 Trousdale Pkwy
Los Angeles
CA
90089
USA
jmoffett@usc.edu
pointOfContact
asNeeded
Dataset Version: 1
Unknown
cruise_id
Bottle
Station
Depth
Iodate
Iodide
Total_Iodine
Excess_Iodine
Longitude
Latitude
Date
Time_UTC
source_file
ISO_DateTime_UTC
Perkin Elmer Lamda 35
BASi Controlled Growth Mercury Electrode
theme
None, User defined
Cruise identfier
bottle
station
depth
No BCO-DMO term
iodide, iodine anion (I-)
longitude
latitude
date
time_utc
file_name
ISO_DateTime_UTC
featureType
BCO-DMO Standard Parameters
Perkin Elmer Lambda 35 Spectrophotometer
Voltammetry Analyzers
instrument
BCO-DMO Standard Instruments
RR1804
FK180624
service
Deployment Activity
Eastern Tropical North Pacific Ocean
Eastern Tropical North Pacific Ocean (20N, 120W)
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.
The role of cryptic nutrient cycling within sinking particles on trace element transport in oxygen minimum zones
https://osprey.bco-dmo.org/project/746076
The role of cryptic nutrient cycling within sinking particles on trace element transport in oxygen minimum zones
<p><em>NSF Award Abstract:</em><br />
The major process controlling the internal cycling of biologically active trace metals in the oceans is through uptake onto and remineralization from sinking particles. Uptake can occur through active biological uptake into living cells as micronutrients, or chemical adsorption onto sinking materials. This latter process is often referred to as scavenging. The relative importance of these processes is often unclear, especially for elements that are both biologically active and also "particle reactive." The latter characteristic is associated with sparing solubility in seawater and the formation of strong complexes with surface sites, with examples such as iron. Recent evidence suggests that the simplistic view of a sinking particle as a passive surface for metal complexation may require some revision. Investigators James Moffett and Seth John propose to study the chemistry of transition metals within large sinking particles and the resultant effects on metal biogeochemical cycling. They will collaborate with a group at the University of Washington, recently funded to study the microbiology and molecular biology of these particles. The central hypothesis of this project is that reducing microbial microenvironments within large particles support high rates of nitrogen and sulfur cycling, greatly enhancing the particles' influence on metal chemistry. The investigators will study these processes in the Eastern Tropical North Pacific Oxygen Minimum Zone (OMZ). This regime was selected because of the wide range of redox conditions in the water column, and strong preliminary evidence that microenvironments within sinking particles have major biogeochemical impacts.</p>
<p>
The primary objective is to investigate the interactions of metals with particles containing microenvironments that are more highly reducing than the surrounding waters. Such microenvironments arise when the prevailing terminal electron acceptor (oxygen, or nitrate in oxygen minimum zones) becomes depleted and alternative terminal electron acceptors are utilized. Within reducing microenvironments metal redox state and coordination chemistry are different from the bulk water column, and these microenvironments may dominate metal particle interactions. For example, reduction of sulfate to sulfide could bind metals that form strong sulfide complexes, such as cadmium and zinc, processes previously thought to be confined to sulfidic environments. Reducing microenvironments may account for the production of reduced species such as iron(II), even when their formation is thermodynamically unfavorable in the bulk water column. Tasks include observational characterization of dissolved and particulate trace metals and stable isotopes in the study area, sampling and in situ manipulation of particles using large-dimension sediment traps, shipboard experimental incubations under a range of redox conditions, and modeling, providing insight from microscopic to global scales. The metal chemistry data will be interpreted within a rich context of complimentary data including rates of nitrogen and sulfur cycling, phylogenetics and proteomic characterization of the concentration of key enzymes. Broader impacts include training of a postdoctoral scientist, international collaborations with Mexican scientists, and involvement of undergraduate students in the research.</p>
OMZ Nutrient Cycling
largerWorkCitation
project
eng; USA
oceans
Eastern Tropical North Pacific Ocean; Eastern Tropical North Pacific Ocean (20N, 120W)
-128.00002
-102
14
22.66672
2018-03-30
2018-07-13
Eastern Tropical North Pacific
0
BCO-DMO catalogue of parameters from Iodine speciation measurements aboard R/V Roger Revelle and R/V Falkor in April and June 2018, respectively.
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/806855.rdf
Name: cruise_id
Units: unitless
Description: <p>cruise identifier</p>
http://lod.bco-dmo.org/id/dataset-parameter/776879.rdf
Name: Bottle
Units: unitless
Description: <p>bottle number</p>
http://lod.bco-dmo.org/id/dataset-parameter/776880.rdf
Name: Station
Units: unitless
Description: <p>station number</p>
http://lod.bco-dmo.org/id/dataset-parameter/776881.rdf
Name: Depth
Units: meters
Description: <p>depth</p>
http://lod.bco-dmo.org/id/dataset-parameter/776882.rdf
Name: Iodate
Units: nanoMolar
Description: <p>iodate concentration</p>
http://lod.bco-dmo.org/id/dataset-parameter/776883.rdf
Name: Iodide
Units: nanoMolar
Description: <p>iodide concentration</p>
http://lod.bco-dmo.org/id/dataset-parameter/776884.rdf
Name: Total_Iodine
Units: nanoMolar
Description: <p>total iodine concentration</p>
http://lod.bco-dmo.org/id/dataset-parameter/776885.rdf
Name: Excess_Iodine
Units: nanoMolar
Description: <p>excess iodine concentration</p>
http://lod.bco-dmo.org/id/dataset-parameter/776886.rdf
Name: Longitude
Units: decimal degrees
Description: <p>longitude; east is positive</p>
http://lod.bco-dmo.org/id/dataset-parameter/776887.rdf
Name: Latitude
Units: decimal degrees
Description: <p>latitude; north is positive</p>
http://lod.bco-dmo.org/id/dataset-parameter/776888.rdf
Name: Date
Units: unitless
Description: <p>sampling date</p>
http://lod.bco-dmo.org/id/dataset-parameter/776889.rdf
Name: Time_UTC
Units: unitless
Description: <p>UTC time</p>
http://lod.bco-dmo.org/id/dataset-parameter/776890.rdf
Name: source_file
Units: unitless
Description: <p>name of submitted file</p>
http://lod.bco-dmo.org/id/dataset-parameter/776891.rdf
Name: ISO_DateTime_UTC
Units: unitless
Description: <p>ISO formatted UTC date and time</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
84197
https://darchive.mblwhoilibrary.org/bitstream/1912/25562/1/dataset-776552_etnp-iodine-speciation__v1.tsv
download
https://doi.org/10.26008/1912/bco-dmo.776552.1
download
onLine
dataset
<p>Iodate was measured using spectrophotometry based off of Rue et al. 1997. Iodide measured voltammetry based off of Luther et al. 1988. Iodate was converted to triiodide and measured on the spectrophotometer at 350 nm. Iodide was measured on a hanging drop mercury electrode at approximately -0.3 V. Excel was used to process CSV files from the spectrophotometer. Excel was also used to process data from the voltammeter.</p>
Specified by the Principal Investigator(s)
<p><strong>BCO-DMO Processing Notes:</strong><br />
- added conventional header with dataset name, PI name, version date<br />
- modified parameter names to conform with BCO-DMO naming conventions<br />
- concatenated RR1804 and FK18<br />
- added cruise_id and ISO_DateTime columns<br />
- rounded iodine columns to 1 decimal place for the FK180624 cruise records</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
Perkin Elmer Lamda 35
Perkin Elmer Lamda 35
PI Supplied Instrument Name: Perkin Elmer Lamda 35 Instrument Name: Perkin Elmer Lambda 35 Spectrophotometer Instrument Short Name:Perkin Elmer Lambda 35 Instrument Description: The Lambda 35 is a double beam UV/Vis spectrophotometer from Perkin Elmer, packing pre-aligned Tungsten and Deuterium Lamps. It has a wavelength range of 190-1100nm and a variable bandwidth range of 0.5 to 4nm. Community Standard Description: http://vocab.nerc.ac.uk/collection/L05/current/LAB20/
BASi Controlled Growth Mercury Electrode
BASi Controlled Growth Mercury Electrode
PI Supplied Instrument Name: BASi Controlled Growth Mercury Electrode Instrument Name: Voltammetry Analyzers Instrument Short Name:Voltammetry Analyzers Instrument Description: Instruments that obtain information about an analyte by applying a potential and measuring the current produced in the analyte. Community Standard Description: http://vocab.nerc.ac.uk/collection/L05/current/LAB35/
Cruise: RR1804
RR1804
R/V Roger Revelle
Community Standard Description
International Council for the Exploration of the Sea
R/V Roger Revelle
vessel
RR1804
Richard Keil
University of Washington
Cruise: FK180624
FK180624
R/V Falkor
Community Standard Description
International Council for the Exploration of the Sea
R/V Falkor
vessel
FK180624
Andrew R. Babbin
Massachusetts Institute of Technology
R/V Roger Revelle
Community Standard Description
International Council for the Exploration of the Sea
R/V Roger Revelle
vessel
R/V Falkor
Community Standard Description
International Council for the Exploration of the Sea
R/V Falkor
vessel