http://lod.bco-dmo.org/id/dataset/710245
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
2017-07-31
ISO 19115-2 Geographic Information - Metadata - Part 2: Extensions for Imagery and Gridded Data
ISO 19115-2:2009(E)
Seawater chlorophyll-a from R/V Endeavor cruise EN589 in the Northwest Atlantic Ocean from September to October 2016 (Refractory DOC Recycling project)
2019-01-02
publication
2019-01-02
revision
BCO-DMO Linked Data URI
2019-01-02
creation
http://lod.bco-dmo.org/id/dataset/710245
David J. Kieber
State University of New York College of Environmental Science and Forestry
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: Kieber, D. J. (2019) Seawater chlorophyll-a from R/V Endeavor cruise EN589 in the Northwest Atlantic Ocean from September to October 2016 (Refractory DOC Recycling project). Biological and Chemical Oceanography Data Management Office (BCO-DMO). (Version 1) Version Date 2019-01-02 [if applicable, indicate subset used]. http://lod.bco-dmo.org/id/dataset/710245 [access date]
Seawater Chlorophyll a from EN589 cruise Dataset Description: <p>Seawater samples collected from CTD casts and analyzed for Chl a.</p> Methods and Sampling: <p>Chlorophyll a Methods:&nbsp; Seawater samples were collected from CTD casts in pre-cleaned opaque brown polyethylene bottles and then analyzed from chlorophyll a (Chl-a) after extraction into 90% acetone:10% high purity water according to the method outlined in Welschmeyer, 1994. &nbsp;Briefly, after a seawater sample was collected from the CTD, a known volume of that seawater was filtered through a 25 mm diameter GF/F glass fiber filter under subdued lighting and at ~100 mm Hg pressure differential. &nbsp;Samples were filtered within 30 min of sample collection. &nbsp;The filter-funnel walls were then rinsed with previously filtered seawater. &nbsp;The filter was then folded with a flat-tipped forcep and placed in a borosilicate test tube that was tightly capped. &nbsp; The test tube was wrapped in Al foil and frozen. &nbsp;Once several samples were processed and stored this way, they were removed from the freezer and 4 mL of 90% (v/v) acetone (Burdick and Jackson, spectrophotometric grade) diluted with high-purity laboratory water (Milli-Q water from a Barnstead water system. &nbsp;The samples were vigorously shaken, wrapped in Al foil, and the Chl-a extracted overnight in the freezer (ca. 12 hr) in the dark. &nbsp;Chl-a in the acetone extracts was quantified by fluorescence under subdued lighting using a Turner Designs model AU-10 fluorometer. &nbsp;Samples were removed from the freezer and warmed to room temperature in the dark prior to analysis.</p>
<p><br />
Chlorophyll a Concentration Calculation:&nbsp; To obtain chlorophyll a concentrations, blank-corrected fluorescence values obtained from the AU-10 were converted to ug Chl- a/L by using the standard curve equation obtained from calibration with an authentic Chl-a standard diluted in 90% acetone prior to the cruise. Secondary solid standards were analyzed daily during the cruise to ensure that the calibration of the AU-10 remained constant. Concentrations were corrected based on the filtered and extract volumes, as well as dilution factors, when needed.</p>
<p><br />
Relevant Reference:</p>
<p>Welschmeyer, N.A. &nbsp;1994. &nbsp;Fluorometric analysis of chlorophyll a in the presence of chlorophyll b and pheopigments. &nbsp;Limnol. Oceanogr. 39: &nbsp;1985-1992.&nbsp;<a href="http://dx.doi.org/10.4319/lo.1994.39.8.1985" target="_blank">10.4319/lo.1994.39.8.1985</a></p>
Funding provided by NSF Division of Ocean Sciences (NSF OCE) Award Number: OCE-1536608 Award URL: https://www.nsf.gov/awardsearch/show-award?AWD_ID=1536608
Funding provided by NSF Division of Ocean Sciences (NSF OCE) Award Number: OCE-1536605 Award URL: https://www.nsf.gov/awardsearch/show-award?AWD_ID=1536605
Funding provided by NSF Division of Ocean Sciences (NSF OCE) Award Number: OCE-1536674 Award URL: https://www.nsf.gov/awardsearch/show-award?AWD_ID=1536674
Funding provided by NSF Division of Ocean Sciences (NSF OCE) Award Number: OCE-1536597 Award URL: https://www.nsf.gov/awardsearch/show-award?AWD_ID=1536597
onGoing
David J. Kieber
State University of New York College of Environmental Science and Forestry
315-470-6951
Chemistry Department One Forestry Drive
Syracuse
NY
13210
USA
djkieber@esf.edu
pointOfContact
asNeeded
Dataset Version: 1
Unknown
Sample_Date
Latitude
Longitude
Cast_ID
CTD_Sample_Depth
Vol_Filtered
Vol_Extracted
Dilution_Factor
AU10_signal
Chl_a_extract
Chl_a_sample
chl_a_avg
chl_a_stdev
Seawater samples were collected from CTD casts.
Turner Designs model AU-10 fluorometer
theme
None, User defined
date
latitude
longitude
cast
depth
volume of water filtered
No BCO-DMO term
chlorophyll a
featureType
BCO-DMO Standard Parameters
Niskin bottle
Turner Designs Fluorometer 10-AU
instrument
BCO-DMO Standard Instruments
EN589
service
Deployment Activity
Northwest Atlantic 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.
United States Surface Ocean Lower Atmosphere Study
http://www.us-solas.org/
United States Surface Ocean Lower Atmosphere Study
The Surface Ocean Lower Atmosphere Study (SOLAS) program is designed to enable researchers from different disciplines to interact and investigate the multitude of processes and interactions between the coupled ocean and atmosphere.
Oceanographers and atmospheric scientists are working together to improve understanding of the fate, transport, and feedbacks of climate relevant compounds, and also weather and hazards that are affected by processes at the surface ocean.
Oceanographers and atmospheric scientists are working together to improve understanding of the fate, transport, and feedbacks of climate relevant compounds.
Physical, chemical, and biological research near the ocean-atmosphere interface must be performed in synergy to extend our current knowledge to adequately understand and forecast changes on short and long time frames and over local and global spatial scales.
The findings obtained from SOLAS are used to improve knowledge at process scale that will lead to better quantification of fluxes of climate relevant compounds such as CO2, sulfur and nitrogen compounds, hydrocarbons and halocarbons, as well as dust, energy and momentum. This activity facilitates a fundamental understanding to assist the societal needs for climate change, environmental health, weather prediction, and national security.
The US SOLAS program is a component of the International SOLAS program where collaborations are forged with investigators around the world to examine SOLAS issues ubiquitous to the world's oceans and atmosphere.
» International SOLAS Web site
Science Implementation Strategy Reports
US-SOLAS (4 MB PDF file)
Other SOLAS reports are available for download from the US SOLAS Web site
U.S. SOLAS
largerWorkCitation
program
Collaborative Research: Coupled Ocean-Atmosphere Recycling of Refractory Dissolved Organic Carbon in Seawater
https://osprey.bco-dmo.org/project/708310
Collaborative Research: Coupled Ocean-Atmosphere Recycling of Refractory Dissolved Organic Carbon in Seawater
<p>The oceans hold a massive quantity of organic carbon that is greater than all terrestrial organic carbon biomass combined. Nearly all marine organic carbon is dissolved and more than 95% is refractory, and cycled through the oceans several times before complete removal. Refractory dissolved organic carbon (RDOC) concentrations are uniform with depth in the water column and represent the "background" carbon present throughout the oceans. However, very little is known regarding RDOC production and removal processes. One potential removal pathway is through adsorption of RDOC onto surfaces of rising bubbles produced by breaking waves and ejection via bubble bursting into the atmosphere. Building on prior research, the investigators will evaluate the importance of ocean- atmosphere processing in recycling marine RDOC during a research cruise in the northwestern Atlantic Ocean. Results of the research will provide important insights regarding the coupled ocean-atmosphere loss of RDOC, thereby improving understanding of and ability to predict the role of RDOC in oceanic and atmospheric biogeochemistry, the global carbon cycle, and Earth's climate. The research will involve three early career faculty, and will provide training for undergraduate and graduate researchers.</p>
<p>Recent results based on a limited set of observations indicate that the organic matter (OM) associated with primary marine aerosol (PMA) produced by bursting bubbles from breaking waves at the sea surface is comprised partly to wholly of RDOC rather than OM of recent biological origin as has been widely assumed. The injection of RDOC into the atmosphere in association with PMA and its subsequent photochemical oxidation is a potentially important and hitherto unrecognized sink for RDOC in the oceans of sufficient magnitude to close the marine carbon budget and help resolve a long-standing conundrum regarding removal mechanisms for marine RDOC. This project will involve a shipboard investigation and modeling study to (1) quantify the relative contributions of marine refractory dissolved organic carbon (RDOC) to primary marine aerosol organic matter (PMA OM) produced from near-surface seawater in biologically productive and oligotrophic regions and from North Atlantic Deep Water, and to (2) determine the importance of atmospheric photochemical processing as a recycling pathway for RDOC. To test these hypotheses, a high-capacity aerosol generator will be deployed at four hydrographic stations in the NW Atlantic Ocean to characterize (1) the natural abundance of 14C in PMA and in surface and deep seawater; (2) the surface tension and physical properties of bubble plumes; (3) size-resolved production fluxes, chemical composition, organic carbon enrichments, spectral absorbance, and photochemical evolution of PMA; and (4) the carbon content, optical properties, and physical properties of seawater. The importance of RDOC recycling via PMA production and photochemical evolution will be interpreted with model calculations.</p>
<p><strong>EN589 Cruise </strong><strong>Track</strong></p>
<p><strong><img alt="" src="https://datadocs.bco-dmo.org/d3/data_docs/Refractory_DOC_Recycling/EN589_Cruise_Trackline.png" style="height:375px; width:500px" /></strong></p>
Refractory DOC Recycling
largerWorkCitation
project
eng; USA
oceans
Northwest Atlantic Ocean
-70.83515
-63.28855
34.99955
41.41893
2016-09-16
2016-10-15
Northwest Atlantic Ocean
0
BCO-DMO catalogue of parameters from Seawater chlorophyll-a from R/V Endeavor cruise EN589 in the Northwest Atlantic Ocean from September to October 2016 (Refractory DOC Recycling 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/710275.rdf
Name: Sample_Date
Units: yyyymmdd
Description: <p>Date when the sample was collected.</p>
http://lod.bco-dmo.org/id/dataset-parameter/710276.rdf
Name: Latitude
Units: decimal degrees
Description: <p>Latitude coordinate where the sample was collected, South is negative.</p>
http://lod.bco-dmo.org/id/dataset-parameter/710277.rdf
Name: Longitude
Units: decimal degrees
Description: <p>Longitude coordinate where the sample was collected, West is negative.</p>
http://lod.bco-dmo.org/id/dataset-parameter/710278.rdf
Name: Cast_ID
Units: unitless
Description: <p>Identifier for the specific cast which collected the data.</p>
http://lod.bco-dmo.org/id/dataset-parameter/710279.rdf
Name: CTD_Sample_Depth
Units: meters (m)
Description: <p>Depth at which the sample was collected.</p>
http://lod.bco-dmo.org/id/dataset-parameter/710280.rdf
Name: Vol_Filtered
Units: mililiters (mL)
Description: <p>Total amount of water filtered.</p>
http://lod.bco-dmo.org/id/dataset-parameter/710281.rdf
Name: Vol_Extracted
Units: mililiters (mL)
Description: <p>Total amount extracted after filtering.</p>
http://lod.bco-dmo.org/id/dataset-parameter/710282.rdf
Name: Dilution_Factor
Units: unitless
Description: <p>Factor by which the sample was diluted</p>
http://lod.bco-dmo.org/id/dataset-parameter/710283.rdf
Name: AU10_signal
Units: unitless
Description: <p>Raw signal collected from the Turner Designs model AU-10 fluorometer</p>
http://lod.bco-dmo.org/id/dataset-parameter/710284.rdf
Name: Chl_a_extract
Units: micrograms per Liter (ug/L)
Description: <p>Chlorophyll a concentration of the extracted water.</p>
http://lod.bco-dmo.org/id/dataset-parameter/710285.rdf
Name: Chl_a_sample
Units: micrograms per Liter (ug/L)
Description: <p>Chlorophyll a concentration of the sample.</p>
http://lod.bco-dmo.org/id/dataset-parameter/710286.rdf
Name: chl_a_avg
Units: micrograms per Liter (ug/L)
Description: <p>Average chlorophyll a concentrations from the sample.</p>
http://lod.bco-dmo.org/id/dataset-parameter/710287.rdf
Name: chl_a_stdev
Units: micrograms per Liter (ug/L)
Description: <p>Standard deviation of the chlorophyll a concentrations from the sample.</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
9514
https://datadocs.bco-dmo.org/file/VJJWqP3igWOlx5/EN589_chla_v20190102.csv
EN589_chla_v20190102.csv
Primary data file for dataset ID 710245
download
https://osprey.bco-dmo.org/dataset/710245/data/download
download
onLine
dataset
<p>Chlorophyll a Methods:&nbsp; Seawater samples were collected from CTD casts in pre-cleaned opaque brown polyethylene bottles and then analyzed from chlorophyll a (Chl-a) after extraction into 90% acetone:10% high purity water according to the method outlined in Welschmeyer, 1994. &nbsp;Briefly, after a seawater sample was collected from the CTD, a known volume of that seawater was filtered through a 25 mm diameter GF/F glass fiber filter under subdued lighting and at ~100 mm Hg pressure differential. &nbsp;Samples were filtered within 30 min of sample collection. &nbsp;The filter-funnel walls were then rinsed with previously filtered seawater. &nbsp;The filter was then folded with a flat-tipped forcep and placed in a borosilicate test tube that was tightly capped. &nbsp; The test tube was wrapped in Al foil and frozen. &nbsp;Once several samples were processed and stored this way, they were removed from the freezer and 4 mL of 90% (v/v) acetone (Burdick and Jackson, spectrophotometric grade) diluted with high-purity laboratory water (Milli-Q water from a Barnstead water system. &nbsp;The samples were vigorously shaken, wrapped in Al foil, and the Chl-a extracted overnight in the freezer (ca. 12 hr) in the dark. &nbsp;Chl-a in the acetone extracts was quantified by fluorescence under subdued lighting using a Turner Designs model AU-10 fluorometer. &nbsp;Samples were removed from the freezer and warmed to room temperature in the dark prior to analysis.</p>
<p><br />
Chlorophyll a Concentration Calculation:&nbsp; To obtain chlorophyll a concentrations, blank-corrected fluorescence values obtained from the AU-10 were converted to ug Chl- a/L by using the standard curve equation obtained from calibration with an authentic Chl-a standard diluted in 90% acetone prior to the cruise. Secondary solid standards were analyzed daily during the cruise to ensure that the calibration of the AU-10 remained constant. Concentrations were corrected based on the filtered and extract volumes, as well as dilution factors, when needed.</p>
<p><br />
Relevant Reference:</p>
<p>Welschmeyer, N.A. &nbsp;1994. &nbsp;Fluorometric analysis of chlorophyll a in the presence of chlorophyll b and pheopigments. &nbsp;Limnol. Oceanogr. 39: &nbsp;1985-1992.&nbsp;<a href="http://dx.doi.org/10.4319/lo.1994.39.8.1985" target="_blank">10.4319/lo.1994.39.8.1985</a></p>
Specified by the Principal Investigator(s)
<p>BCO-DMO Processing:<br />
Added conventional header with dataset name, PI name, version date.<br />
Modified parameter names to conform with BCO-DMO naming conventions.<br />
Re-formatted date from dd-MM-YY&nbsp;to yyyymmdd.<br />
Re-formatted the latitude longitude pairs from degrees decimal minutes to decimal degrees.</p>
<p>2019-01-02: revised the station positions and changed cast ID 16267U1804 to 16267U1604. Version 2 (2019-01-02) replaces version 1 (2017-07-19).</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
Seawater samples were collected from CTD casts.
Seawater samples were collected from CTD casts.
PI Supplied Instrument Name: Seawater samples were collected from CTD casts. PI Supplied Instrument Description:Seawater samples were collected from CTD casts in pre-cleaned opaque brown polyethylene bottles and then analyzed from chlorophyll a (Chl-a) after extraction into 90% acetone:10% high purity water according to the method outlined in Welschmeyer, 1994. 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/
Turner Designs model AU-10 fluorometer
Turner Designs model AU-10 fluorometer
PI Supplied Instrument Name: Turner Designs model AU-10 fluorometer PI Supplied Instrument Description:Chl-a in the acetone extracts was quantified by fluorescence under subdued lighting using a Turner Designs model AU-10 fluorometer. Instrument Name: Turner Designs Fluorometer 10-AU Instrument Short Name:Turner Fluorometer 10-AU Instrument Description: The Turner Designs 10-AU Field Fluorometer is used to measure Chlorophyll fluorescence. The 10AU Fluorometer can be set up for continuous-flow monitoring or discrete sample analyses. A variety of compounds can be measured using application-specific optical filters available from the manufacturer (read more from Turner Designs, turnerdesigns.com, Sunnyvale, CA, USA). Community Standard Description: http://vocab.nerc.ac.uk/collection/L22/current/TOOL0393/
Cruise: EN589
EN589
R/V Endeavor
Community Standard Description
International Council for the Exploration of the Sea
R/V Endeavor
vessel
EN589
David J. Kieber
State University of New York College of Environmental Science and Forestry
http://dmoserv3.bco-dmo.org/data_docs/Refractory_DOC_Recycling/EN589_Post_Cruise_Report_10.20.16.pdf
Report describing EN589
R/V Endeavor
Community Standard Description
International Council for the Exploration of the Sea
R/V Endeavor
vessel