http://lod.bco-dmo.org/id/dataset/3122
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
2010-06-16
ISO 19115-2 Geographic Information - Metadata - Part 2: Extensions for Imagery and Gridded Data
ISO 19115-2:2009(E)
Water-column Biogenic silica concentrations from RVIB Nathaniel B. Palmer NBP0601, NBP0608 cruises in the Ross Sea Southern Ocean (CORSACS project)
2010-09-11
publication
2010-09-11
revision
BCO-DMO Linked Data URI
2010-09-11
creation
http://lod.bco-dmo.org/id/dataset/3122
David A. Hutchins
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: Hutchins, D. A. (2010) Water-column Biogenic silica concentrations from RVIB Nathaniel B. Palmer NBP0601, NBP0608 cruises in the Ross Sea Southern Ocean (CORSACS project). Biological and Chemical Oceanography Data Management Office (BCO-DMO). (Version 11 September 2010) Version Date 2010-09-11 [if applicable, indicate subset used]. http://lod.bco-dmo.org/id/dataset/3122 [access date]
Water-column Biogenic silica concentrations Dataset Description: <p>Water-column Biogenic silica concentrations from CORSACS 1 cruise (NBP-0601) and CORSACS2 cruise (NBP-0608) to the Ross Sea</p> Methods and Sampling: <p>Water-column samples for biogenic silica were collected in 10-L Niskin samplers (General Oceanics Inc.) attached to the CTD rosette, during 2 cruises in the Ross Sea, ca. 65.21&deg;S-78.65&deg;S, 164.98&deg;E-164.70&deg;W, 6-1265 m depth. Biogenic silica (BSi) analyses were performed by filtering 250-1000 mL aliquots of seawater onto 0.6-um 47-mm polycarbonate filters. The filters were dried at 60oC, and stored at room temperature until analysis. The samples were analyzed following the method of Brzezinski &amp; Nelson (1995).</p>
<p>Brzezinski, M.A., Nelson D.M., 1995. The annual silica cycle in the Sargasso Sea near Bermuda. Deep-Sea Research I 42:1215-1237</p>
Funding provided by NSF Office of Polar Programs (formerly NSF PLR) (NSF OPP) Award Number: OPP-0338097 Award URL: https://www.nsf.gov/awardsearch/show-award?AWD_ID=0338097
onGoing
David A. Hutchins
University of Southern California
213-740-5616
Department of Biological Sciences 3616 Trousdale Parkway, AHF 20
Los Angeles
CA
90089
USA
dahutch@usc.edu
pointOfContact
asNeeded
Dataset Version: 11 September 2010
Unknown
cruise_id
date_local
sta
bot
depth
vol_filt
Si_bio
lat
lon
ev_Si
Niskin Bottle
theme
None, User defined
Cruise identfier
date_local
station
bottle number
depth
volume of water filtered
biogenic silica concentration
latitude
longitude
No BCO-DMO term
featureType
BCO-DMO Standard Parameters
Niskin bottle
instrument
BCO-DMO Standard Instruments
NBP0601
NBP0608
service
Deployment Activity
Ross Sea Southern 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.
Ocean Carbon and Biogeochemistry
http://us-ocb.org/
Ocean Carbon and Biogeochemistry
The Ocean Carbon and Biogeochemistry (OCB) program focuses on the ocean's role as a component of the global Earth system, bringing together research in geochemistry, ocean physics, and ecology that inform on and advance our understanding of ocean biogeochemistry. The overall program goals are to promote, plan, and coordinate collaborative, multidisciplinary research opportunities within the U.S. research community and with international partners. Important OCB-related activities currently include: the Ocean Carbon and Climate Change (OCCC) and the North American Carbon Program (NACP); U.S. contributions to IMBER, SOLAS, CARBOOCEAN; and numerous U.S. single-investigator and medium-size research projects funded by U.S. federal agencies including NASA, NOAA, and NSF.
The scientific mission of OCB is to study the evolving role of the ocean in the global carbon cycle, in the face of environmental variability and change through studies of marine biogeochemical cycles and associated ecosystems.
The overarching OCB science themes include improved understanding and prediction of: 1) oceanic uptake and release of atmospheric CO2 and other greenhouse gases and 2) environmental sensitivities of biogeochemical cycles, marine ecosystems, and interactions between the two.
The OCB Research Priorities (updated January 2012) include: ocean acidification; terrestrial/coastal carbon fluxes and exchanges; climate sensitivities of and change in ecosystem structure and associated impacts on biogeochemical cycles; mesopelagic ecological and biogeochemical interactions; benthic-pelagic feedbacks on biogeochemical cycles; ocean carbon uptake and storage; and expanding low-oxygen conditions in the coastal and open oceans.
OCB
largerWorkCitation
program
Controls of Ross Sea Algal Community Structure
http://www.whoi.edu/sites/corsacs
Controls of Ross Sea Algal Community Structure
<h3>Project summary</h3>
<p>The Controls of Ross Sea Algal Community Structure (CORSACS) project was funded by the NSF Office of Polar Programs as "Collaborative Research: Interactive Effects of Iron, Light and Carbon Dioxide on Phytoplankton Community Dynamics in the Ross Sea". Two cruises were completed in 2006 to investigate the interactions between the primary productivity of the Ross Sea and pCO2, iron and other trace elements. Data sets of carbon, nutrient, metal, and biological measurements will be reported.</p>
<p>The main objective in the proposed research was to investigate the relative importance and potential interactive effects of iron, light and CO2 levels in structuring algal assemblages and growth rates in the Ross Sea. The investigators hypothesized that the interaction of these three variables largely determines the bottom-up control on these two dominant Southern Ocean phytoplankton taxa. While grazing and other loss processes are important variables in determining the relative dominance of these two taxa, the CORSACS research project was designed to focus on the bottom-up control mechanisms. It is important to understand such environmentally-driven taxonomic shifts in primary production, since they are expected to impact the fixation and export of carbon and nutrients, and the production of DMS, thus potentially providing both positive and negative feedbacks on climate.</p>
<p>The CORSACS investigators considered a range of ambient iron, light and pCO2 levels that span those typically observed in the Ross Sea during the growing season. That is, dissolved iron ranging from ~0.1 nM (low iron) to greater than 1 nM (high iron) (Fitzwater et al. 2000; Sedwick et al. 2000); mean irradiance (resulting from vertical mixing/self shading) ranging from less than 10% Io (low light) to greater than 40% (high light) (Arrigo et al., 1998, 1999), possibly adjusted based on field observations during the CORSACS cruises; and pCO2 ranging (Sweeney et al. 2001) from ~150 ppm (low CO2) to the probable higher levels of pCO2 - 750 ppm as a conservative estimate - that are likely to be attained later this century due to anthropogenic perturbation of the global carbon cycle (IPCC, 2001).</p>
<p>From the information previously available from both field observations and experiments, the investigators formulated the following specific hypotheses regarding the interactive role of iron, light and CO2 in regulating algal composition in the Ross Sea: diatoms bloom in the southern Ross Sea only under optimum conditions of high iron, light and pCO2; colonial Phaeocystis dominate under conditions of high iron with either (or both) low light or low pCO2; and solitary Phaeocystis are predominant under conditions of low iron with either (or both) low light or low pCO2.</p>
<h4>References:</h4>
<p>Fitzwater, S.E., K.S. Johnson, R.M. Gordon, K.H. Coale, and W.O. Smith, Jr. (2000). Trace metal concentrations in the Ross Sea and their relationship with nutrients and growth. Deep-Sea Research II, 47: 3159-3179.</p>
<p>Martin JH, Gordon RM, Fitzwater SE. Iron in Antarctic waters. Nature 1990 ;345(6271):156-158. Martin JH. 1990. Glacial-interglacial CO2 change: The iron hypothesis. Paleoceanography 5(1):1-13</p>
<p>P. N. Sedwick, G. R. DiTullio, and D. J. Mackey, Iron and manganese in the Ross Sea, Antarctica: Seasonal iron limitation in Antarctic shelf waters, Journal of Geophysical Research, 105 (C5), 11,321-11,336, 2000.</p>
<p>Sweeney, C. K. Arrigo, and G. van Gijken (2001). Prediction of seasonal changes in surface pCO2 in the Ross Sea, Antarctica using ocean color satellite data. 2001 Annual AGU meeting, San Fransisco, CA Dec. 10-15.</p>
<p>IPCC, 2001: Climate Change 2001: Synthesis Report. A Contribution of Working Groups I, II, and III to the Third Assessment Report of theIntegovernmental Panel on Climate Change [Watson, R.T. and the Core Writing Team (eds.)]. Cambridge University Press, Cambridge,United Kingdom, and New York, NY, USA, 398 pp.</p>
<p><strong>Publications</strong></p>
<p>Saito, M. A., Goepfert, T. J., Noble, A. E., Bertrand, E. M., Sedwick, P. N., and DiTullio, G. R.: A seasonal study of dissolved cobalt in the Ross Sea, Antarctica: micronutrient behavior, absence of scavenging, and relationships with Zn, Cd, and P, Biogeosciences, 7, 4059-4082, doi:10.5194/bg-7-4059-2010, 2010 (<a href="http://www.biogeosciences.net/7/4059/2010/bg-7-4059-2010.html">http://www.biogeosciences.net/7/4059/2010/bg-7-4059-2010.html</a>)</p>
<p>Bertrand EM, Saito MA, Lee PA, Dunbar RB, Sedwick PN and DiTullio GR (2011) Iron limitation of a springtime bacterial and phytoplankton community in the Ross Sea: implications for vitamin B12 nutrition. Front. Microbio. 2:160. doi: 10.3389/fmicb.2011.00160 (<a href="http://www.frontiersin.org/Aquatic_Microbiology/10.3389/fmicb.2011.00160/abstract">http://www.frontiersin.org/Aquatic_Microbiology/10.3389/fmicb.2011.00160/abstract</a>)</p>
CORSACS
largerWorkCitation
project
eng; USA
oceans
Ross Sea Southern Ocean
2010-09-11
Ross Sea Southern Ocean
0
BCO-DMO catalogue of parameters from Water-column Biogenic silica concentrations from RVIB Nathaniel B. Palmer NBP0601, NBP0608 cruises in the Ross Sea Southern Ocean (CORSACS 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/19670.rdf
Name: cruise_id
Units: dimensionless
Description: <p>ship's cruise designation</p>
http://lod.bco-dmo.org/id/dataset-parameter/19671.rdf
Name: date_local
Units: YYYYMMDD
Description: <p>local date of sampling</p>
http://lod.bco-dmo.org/id/dataset-parameter/19672.rdf
Name: sta
Units: dimensionless
Description: <p>station number</p>
http://lod.bco-dmo.org/id/dataset-parameter/19673.rdf
Name: bot
Units: dimensionless
Description: <p>bottle number</p>
http://lod.bco-dmo.org/id/dataset-parameter/19674.rdf
Name: depth
Units: meters
Description: <p>depth</p>
http://lod.bco-dmo.org/id/dataset-parameter/19675.rdf
Name: vol_filt
Units: liters
Description: <p>volume of water filtered</p>
http://lod.bco-dmo.org/id/dataset-parameter/19676.rdf
Name: Si_bio
Units: micromoles Si per liter
Description: <p>biogenic silica concentration </p>
http://lod.bco-dmo.org/id/dataset-parameter/22271.rdf
Name: lat
Units: decimal degrees
Description: <p>latitude, in decimal degrees, North is positive, negative denotes South; lat and lon values are from hydro station metadata as the biogenic silica data were contributed without station position information</p>
http://lod.bco-dmo.org/id/dataset-parameter/22272.rdf
Name: lon
Units: decimal degrees
Description: <p>longitude, in decimal degrees, East is positive, negative denotes West; lat and lon values are from hydro station metadata as the biogenic silica data were contributed without station position information</p>
http://lod.bco-dmo.org/id/dataset-parameter/22310.rdf
Name: ev_Si
Units: dimensionless
Description: <p>event number from original data file; definition was not specified by contributing PI</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
71198
https://datadocs.bco-dmo.org/file/1VVMoL9hqp4K8A/biogenic_silica.csv
biogenic_silica.csv
Primary data file for dataset ID 3122
download
https://osprey.bco-dmo.org/dataset/3122/data/download
download
onLine
dataset
<p>Water-column samples for biogenic silica were collected in 10-L Niskin samplers (General Oceanics Inc.) attached to the CTD rosette, during 2 cruises in the Ross Sea, ca. 65.21&deg;S-78.65&deg;S, 164.98&deg;E-164.70&deg;W, 6-1265 m depth. Biogenic silica (BSi) analyses were performed by filtering 250-1000 mL aliquots of seawater onto 0.6-um 47-mm polycarbonate filters. The filters were dried at 60oC, and stored at room temperature until analysis. The samples were analyzed following the method of Brzezinski &amp; Nelson (1995).</p>
<p>Brzezinski, M.A., Nelson D.M., 1995. The annual silica cycle in the Sargasso Sea near Bermuda. Deep-Sea Research I 42:1215-1237</p>
Specified by the Principal Investigator(s)
<p>Appropriate information on blanks and linear regressions of the standard curves is included within the original spreadsheet. A field blank value of 0.013 was subtracted for each measurement. The slope of the standard silicate curve was approximately 0.011 with an r-squared value of &gt;0.99.</p>
<h4>Original data as Excel spreadsheets:</h4>
<p><a href="http://data.bco-dmo.org/CORSACS/data_orig/CORSACS_1_CTD_BSi.xls">CORSACS 1 Biogenic silica (XLS)</a><br />
<a href="http://data.bco-dmo.org/CORSACS/data_orig/CORSACS_2_CTD_BSi.xls">CORSACS 2 Biogenic silica (XLS)</a><br />
<br />
<strong>BCO-DMO processing:</strong></p>
<p>Biogenic Silica data were contributed in Microsoft Office Excel Spreadsheets -- one for each deployment (NBP0601 and NBP0608.) Both data sets reported sample depth, volume filtered, and Biogenic Silica in micromoles per liter, along with linear regressions of the standard curves used in the analysis. The spreadsheets were manually edited for upload to the BCO-DMO database. Neither data set included position information. As submitted, the original data lacked lat and lon and 0608 lacked date_local.&nbsp; These columns were added by BCO-DMO as follows: lat and lon values are from hydro station metadata and date_local for NBP0608 was also taken from the hydro data as reported in another data set from this research project.</p>
<p><strong>NBP0601 processing notes:</strong><br />
For NBP0601, a station number, date, bottle number, and sample depth were reported for each sample. Position information was not included. In order to be sure that Biogenic Silica station numbers matched Hydro casts station numbers, plots of the common information were prepared.</p>
<p>Sample depths were plotted against station number for the hydrographic data with Biogenic silica station number and sample depths overlaid. The points matched up nicely, confirming that station numbers were the same, therefore geographic position and time, as submitted with the hydrographic data, could be assigned to Biogenic Silica samples. (<a href="http://data.bco-dmo.org/CORSACS/data_orig/NBP0601_HYDRO_BS.pdf">see comparison plot PDF file</a>)</p>
<p>It should be noted that station+date_local for NBP0601 did not always match the hydro data. 21 of the 61 NBP0601 BioSi stations had a different date_local than the hydro stas; in every case, the BioSi sta number was 1 day ahead (e.g. station 18 hydro date = 12/30 and BioSi = 12/31)</p>
<p>The CTD/hydro data clearly stated that date was local, however if hydro date was in fact GMT then local time (GMT +13 for this timezone in December) would be 13 hours later (often one day ahead); if NBP0601 hydro data had date in GMT, and BioSi used local date, then the 1 day date offset could be explained. However, we have been unable to confirm this theory. Note that this means it is possible that the date_local column now has a mix of time zones; NBP0601 has original BioSi dates which might be local and NBP0608 has 'date' from hydro (called date_local) but might really be GMT.</p>
<p><strong>NBP0608 processing notes:</strong><br />
For NBP0608, samples were identified using CTD cast number and depth. Position and time information were not reported. In order to be sure that Biogenic Silica station numbers matched the hydrographic station numbers, plots of the common information in both datasets were prepared. (<a href="http://data.bco-dmo.org/CORSACS/data_orig/NBP0608_HYDRO_BS.pdf">see comparison plot PDF file</a>)</p>
<p>Sample depths were plotted against station number for the hydrographic data with Biogenic silica station number and sample depths overlaid. The points matched up nicely, confirming that station numbers were the same, therefore geographic position and time, as submitted with the hydrographic data, could be assigned to Biogenic Silica samples.</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
Niskin Bottle
Niskin Bottle
PI Supplied Instrument Name: Niskin Bottle PI Supplied Instrument Description:10-L Niskin samplers (General Oceanics Inc.) attached to the CTD rosette Instrument Name: Niskin bottle Instrument Short Name:Niskin bottle Instrument Description: A Niskin bottle (a next generation water sampler based on the Nansen bottle) is a cylindrical, non-metallic water collection device with stoppers at both ends. The bottles can be attached individually on a hydrowire or deployed in 12, 24, or 36 bottle Rosette systems mounted on a frame and combined with a CTD. Niskin bottles are used to collect discrete water samples for a range of measurements including pigments, nutrients, plankton, etc. Community Standard Description: http://vocab.nerc.ac.uk/collection/L22/current/TOOL0412/
Cruise: NBP0601
NBP0601
Community Standard Description
International Council for the Exploration of the Sea
RVIB Nathaniel B. Palmer
vessel
NBP0601
Giacomo DiTullio
College of Charleston - Hollings Marine Lab
http://data.bco-dmo.org/CORSACS/cruises/Dunbar_Hydrography_report_NBP0601.pdf
Report describing NBP0601
Cruise: NBP0608
NBP0608
Community Standard Description
International Council for the Exploration of the Sea
RVIB Nathaniel B. Palmer
vessel
NBP0608
Giacomo DiTullio
College of Charleston - Hollings Marine Lab
http://data.bco-dmo.org/CORSACS/cruises/Dunbar_Hydrography_report_NBP0608.pdf
Report describing NBP0608
Community Standard Description
International Council for the Exploration of the Sea
RVIB Nathaniel B. Palmer
vessel