http://lod.bco-dmo.org/id/dataset/3540
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
2011-09-15
ISO 19115-2 Geographic Information - Metadata - Part 2: Extensions for Imagery and Gridded Data
ISO 19115-2:2009(E)
Laser Optical Plankton Counter from R/V Oceanus cruise OC468-02 in the Gulf of Mexico in 2010 (GoMX - Hypoxia and Oil Effects project)
2011-09-16
publication
2011-09-16
revision
BCO-DMO Linked Data URI
2011-09-16
creation
http://lod.bco-dmo.org/id/dataset/3540
David G. Kimmel
East Carolina University - Institute for Coastal Science and Policy
principalInvestigator
William C. Boicourt
University of Maryland Center for Environmental Science
principalInvestigator
Stephen E. Brandt
Sea Grant
principalInvestigator
James J. Pierson
University of Maryland Center for Environmental Science
principalInvestigator
Michael R. Roman
University of Maryland Center for Environmental Science
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: Kimmel, D. G., Roman, M. R., Boicourt, W. C., Pierson, J. J., Brandt, S. E. (2011) Laser Optical Plankton Counter from R/V Oceanus cruise OC468-02 in the Gulf of Mexico in 2010 (GoMX - Hypoxia and Oil Effects project). Biological and Chemical Oceanography Data Management Office (BCO-DMO). (Version 16 September 2011) Version Date 2011-09-16 [if applicable, indicate subset used]. http://lod.bco-dmo.org/id/dataset/3540 [access date]
Laser Optical Plankton Counter Dataset Description: <p>Data consist of particle counts and sizes measured using a Brooke Ocean Technology Laser Optical Plankton Counter (LOPC) and were collected from vertical casts of up to 200 m in depth.<br />
&nbsp;<br />
<strong>Parameter names, definitions and units:</strong><br />
The following information is from the LOPC Software Operation Manual (see related files and references). The LOPC data files are written as binary files and converted to ASCII during a minimal processing step. Each file contains a set of header information:<br />
&nbsp;<br />
<strong>Header 1:</strong> PC DATE-TIME: contains Date and Time as recorded from the logging computer.<br />
&nbsp;<br />
<strong>Header 2:</strong> USER SUPPLIED HEADER: contains any information provided by the user about the data<br />
&nbsp;<br />
<strong>Header 3:</strong> LOPC SOFTWARE CONFIG: contains information about how the LOPC hardware was configured.<br />
&nbsp;<br />
<strong>Header 4:</strong> LOPC FIRMWARE CONFIG: contains information about how the LOPC software was configured.<br />
&nbsp;<br />
Following the header information, the data stream begins as single lines of information, the file format description is as follows:<br />
&nbsp;<br />
<strong>L1-L4:</strong> these four lines contain the 128 bins (32 bins per line) of single element plankton counted during this half-second sample.<br />
L1 0 0 0 0 0 0 6 8 8 7 4 2 3 2 2 7 3 4 5 6 5 3 3 2 1 2 5 7 8 0 0 4<br />
L2 3 2 0 3 0 1 0 1 0 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0<br />
L3 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0<br />
L4 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0<br />
<br />
<strong>L5</strong>: system status/engineering data<br />
L5 0 100 31 7 116 0 2550 0 0 2247<br />
Description of the L5 line from the sample above (from left to right)<br />
0 = Snapshot number<br />
100 = Threshold<br />
31 = Sample Number<br />
7 = Flow Counts<br />
116 = Delta Time<br />
0 = Buffer Overrun<br />
2550 = Laser Monitor (LMon in A/D counts)<br />
0 = Electronic Counts<br />
0 = Count Period<br />
2247 = Laser Voltage (LVolt in A/D counts)<br />
<br />
<strong>C</strong>: indicates a line of instrument data from any attached serial instruments. The rate at which this is transmitted by the LOPC, the data it contains, and the data string format is determined by the instrument in use. Typically, this represents a stream of CTD data.<br />
C +20.06602 2.35579 -0.056 0.2600 3.8046<br />
<br />
This example shows the output from a CTD.<br />
<strong>M</strong>: indicates a portion of Multi-Element Plankton (MEP) data, where the form is ‘M Element-Number Scan-Number Scan-Length Peak-Laser Monitor. The MEP data is sent whenever the opportunity is available. Both the binned data (<strong>L1-L5</strong> lines) and the Instrument data (<strong>C</strong> lines) take precedence over MEP data.<br />
M 26 20845 1 32869<br />
M 25 20826 30 291<br />
M 24 20831 21 186<br />
M 4 23768 7 33251<br />
M 3 23760 23 1403<br />
M 2 23761 22 1092<br />
<br />
<strong>Description of file fields:</strong><br />
<strong>Snapshot Indicator:</strong> This value indicates whether a snapshot is in progress. A 1 indicates a snapshot is in progress, 0 indicates no snapshot is in progress [Found on L5 lines – position 1]<br />
<br />
<strong>Threshold:</strong> The threshold is used to set a lower limit on signal level detection, which ensures that the LOPC is operating above the “noise level” of internal active components. This improves the accuracy and reliability of detection data. [Found on L5 lines – position 2]<br />
<br />
<strong>Sample Number:</strong> A counter indicating number of samples taken by the LOPC at 2 Hz [Found on L5 lines – position 3]<br />
<br />
<strong>Flow Counts:</strong> The Flow Counts indicate the number of counts within a pre-determined size range within current 0.5-second sample (can be used in combination with Delta Time for flow calculations) [Found on L5 lines – position 4]<br />
<br />
<strong>Delta Time:</strong> Delta Time is the accumulated time for all counts detected in the Flow Counts window to pass through the beam (can be used in combination with Flow Counts for flow calculations) [Found on L5 lines – position 5]<br />
<br />
<strong>Buffer Overrun:</strong>Used to indicate an internal buffer overrun. ”1” if a buffer overrun occurs, “0” otherwise [Found on L5 lines – position 6]<br />
<br />
<strong>Laser Monitor (LMon):</strong> Laser Monitor is the mean laser intensity detected by all 35 elements of the photo-diode array during this 0.5-second sample [Found on L5 lines – position 7]<br />
<br />
<strong>Laser Voltage (LVolt):</strong> Laser Voltage is the input voltage to the laser. This value is a monitor of a laser control circuit that will increase or decrease the laser input voltage as required to maintain a preset level (LMon) [Found on L5 lines – position 10]<br />
<br />
<strong>Element-Number:</strong> Indicates the element within the 35-element photo-diode array to which this line of MEP data pertains [Found on M lines – position 1]<br />
<br />
<strong>Scan-Number:</strong> The Scan-Number is read from a 16-bit internal counter (0-65535) that is incremented every 35 µs to provide a measure of time. The Scan-Number indicates the “time” at which the MEP entered the beam for this element [Found on M lines – position 2]<br />
<br />
<strong>Scan-Length:</strong> Scan-Length indicates the number of scans, or the “length of time,” a portion of a MEP was detected on the element of question [Found on M lines – position 3]<br />
<br />
<strong>Peak Laser Level:</strong> The maximum level of laser light detected on this element during passage of a MEP [Found on M lines – position 4]<br />
<br />
<br />
<strong>Related files and references:</strong><br />
Laser Optical Plankton Counter Operation and Maintenance Manual. 2010. Brooke Ocean Technology <strong>(<a href="http://www.brooke-ocean.com/">www.brooke-ocean.com</a>).</strong><br />
<br />
Herman AW. LOPC post-processing page: <a href="http://www.alexherman.com/lopc_post.php"><strong>http://www.alexherman.com/lopc_post.php.</strong></a> Contains software designed to enable first-time users of the LOPC to process data.<br />
<br />
Herman AW, M Harvey. 2006. Application of normalized biomass size spectra to laser optical plankton counter net intercomparisons of zooplankton distributions. Journal of Geophysical Research-Oceans. 111(C5): C05S05.<br />
<br />
Herman AW, B Beanlands, EF Phillips. 2004. The next generation of Optical Plankton Counter: the Laser-OPC. Journal of Plankton Research. 26(10): 1135-1145.</p> Methods and Sampling: <p>Data were collected using a Brooke-Ocean Technology Laser Optical Plankton Counter model LOPC-660. Instrument was deployed in individual, vertical casts &lt; 200m in depth. The LOPC was calibrated prior to deployment; however, the data have not been examined in depth for quality control or assurance.<br />
<br />
Data have not been analyzed beyond the initial collection.<br />
<br />
Samples were taken in two locations:<br />
near the Macondo-1 well site: 28.736669 N, 88.387161 W<br />
offshore location bounded by 27.377-28.866667 N and 90.57366667-88.06766667 W</p>
Funding provided by NSF Division of Ocean Sciences (NSF OCE) Award Number: OCE-1043249 Award URL: https://www.nsf.gov/awardsearch/show-award?AWD_ID=1043249
completed
David G. Kimmel
East Carolina University - Institute for Coastal Science and Policy
206-526-4470
EcoFOCI group, RACE division 7600 Sand Point Way NE
Seattle
WA
98115
USA
kimmeld@ecu.edu
pointOfContact
William C. Boicourt
University of Maryland Center for Environmental Science
410-221-8426
Horn Point Laboratory 2020 Horns Point Road
Cambridge
MD
21613
USA
boicourt@umces.edu
pointOfContact
Stephen E. Brandt
Sea Grant
541-737-3396
Oregon Sea Grant OSU, 322 Kerr Administration Building
Corvallis
OR
97331-2131
USA
stephen.brandt@oregonstate.edu
pointOfContact
James J. Pierson
University of Maryland Center for Environmental Science
410-221-8218
Horn Point Laboratory 2020 Horns Point Road
Cambridge
MD
21613
USA
jpierson@umces.edu
pointOfContact
Michael R. Roman
University of Maryland Center for Environmental Science
410-221-8425
Horn Point Laboratory 2020 Horns Point Road
Cambridge
MD
21613
USA
roman@umces.edu
pointOfContact
asNeeded
Dataset Version: 16 September 2011
Unknown
Station
Date
Time
Latitude
Longitude
Depth
DataFile
Laser Optical Plankton Counter
theme
None, User defined
station
date
time of day
latitude
longitude
depth
dataset_id
featureType
BCO-DMO Standard Parameters
Laser Optical Plankton Counter
instrument
BCO-DMO Standard Instruments
OC468-02
service
Deployment Activity
Gulf of Mexico
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.
Gulf of Mexico - Deepwater Horizon Oil Spill
https://osprey.bco-dmo.org/program/2028
Gulf of Mexico - Deepwater Horizon Oil Spill
Grants for Rapid Response Research (RAPID)
The RAPID funding mechanism is used for proposals having a severe urgency with regard to availability of, or access to data, facilities or specialized equipment, including quick-response research on natural or anthropogenic disasters and similar unanticipated events.
GOM - Broader Impacts
The need to understand the impact of this largest oil spill to date on ecosystems and biochemical cycling is self evident. The consequences of the disaster and accompanying clean up measures (e.g. the distribution of dispersants) need to be evaluated to guide further mediating measures and to develop and improve responses to similar disasters in the future. Would it be advantageous if such oil aggregates sink, or should it rather remain suspended? Possibly measures can be developed to enhance sinking or suspension (e.g. addition of ballast minerals) once we understand their current formation and fate. Understanding the particle dynamics following the input of large amounts of oil and dispersants into the water is a prerequisite to develop response strategies for now and in the future.
GoMX - DHOS
largerWorkCitation
program
Spatially-explicit, High-resolution Mapping and Modeling to Quantify Hypoxia and Oil Effects on the Living Resources of the Northern Gulf of Mexico
https://osprey.bco-dmo.org/project/2165
Spatially-explicit, High-resolution Mapping and Modeling to Quantify Hypoxia and Oil Effects on the Living Resources of the Northern Gulf of Mexico
<p><b>RAPID Collaborative Proposal: Spatially-explicit, High-resolution Mapping and Modeling to Quantify Hypoxia and Oil Effects on the Living Resources of the Northern Gulf of Mexico</b></p>
<p><b>From the NSF proposal abstract</b><br /><br />
On April 22, 2010, the drill platform Deepwater Horizon sank in nearly 1,200 m of water in the northern Gulf of Mexico. Since this date various estimates of oil and added chemical dispersants have been released from the site with dispersion both at the surface and at depth. The transport of this oil and dispersants has been influenced by wind-driven currents over the shelf and by the Loop Current and its derivatives offshore. To date the exact amount and paths of movement of the Horizon spill remain speculative. Since 2003, with NOAA-CSCOR funding, this group of investigators has conducted 5 summer cruises in the northern Gulf of Mexico that used high-resolution sampling to define the spatially explicit relationships between physical structure to pelagic zooplankton and fish distributions. Thus this group has one of the most comprehensive, synoptic data sets on temperature, salinity, oxygen, phytoplankton, zooplankton and fish in the northern Gulf of Mexico for conditions prior to the oil leak.</p>
<p>The current RAPID award will allow this group to repeat their high-resolution mapping of hydrography, oxygen, plankton and fish in the northern Gulf of Mexico. The domain of interest will include the previous survey region in the hypoxic zone west of the Mississippi Delta but also the area east of the Mississippi where more oil transport from the spill has been suggested. The cruise will take place in the late summer period because the investigators have 5 years of ?baseline? data during this season to compare the results. The measures of species diversity and abundance, biomass size spectrum, fish diets, fish growth rate potential and ecosystem models will all be extremely useful to assess the possible effects of the oil spill on the living resources of the northern Gulf of Mexico. In addition to the rapid mapping cruise on the inner to mid-shelf, this group also will send scientists on the ORV Oceanus to conduct high resolution vertical zooplankton measurements (LOPC and TAPS) and MOCNESS zooplankton tows at deeper stations and broader mapping surveys to extend our spatial coverage of the affected area. They will coordinate our zooplankton and fish measurements with other investigators assessing the biogeochemical and biological impacts of the BP oil spill. Data from previous NOAA will be deposited in the BCODMO data management facility as well as current measurements and model products.</p>
GoMX - Hypoxia and Oil Effects
largerWorkCitation
project
eng; USA
oceans
Gulf of Mexico
2011-09-16
Northern Gulf of Mexico
0
BCO-DMO catalogue of parameters from Laser Optical Plankton Counter from R/V Oceanus cruise OC468-02 in the Gulf of Mexico in 2010 (GoMX - Hypoxia and Oil Effects 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/25820.rdf
Name: Station
Units: text
Description: <p>LOPC Station Id</p>
http://lod.bco-dmo.org/id/dataset-parameter/25821.rdf
Name: Date
Units: YYYYMMDD
Description: <p>Date (GMT)</p>
http://lod.bco-dmo.org/id/dataset-parameter/25822.rdf
Name: Time
Units: HHMM
Description: <p>Time (GMT)</p>
http://lod.bco-dmo.org/id/dataset-parameter/25823.rdf
Name: Latitude
Units: Decimal degrees
Description: <p>Station latitude (South is negative)</p>
http://lod.bco-dmo.org/id/dataset-parameter/25824.rdf
Name: Longitude
Units: Decimal degrees
Description: <p>Station longitude (West is negative)</p>
http://lod.bco-dmo.org/id/dataset-parameter/25825.rdf
Name: Depth
Units: meters
Description: <p>LOPC Cast Depth</p>
http://lod.bco-dmo.org/id/dataset-parameter/25826.rdf
Name: DataFile
Units: text
Description: <p>Link to LOPC data file</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
2476
https://datadocs.bco-dmo.org/file/3YY3q5JiXpqY55/LOPC.csv
LOPC.csv
Primary data file for dataset ID 3540
download
https://osprey.bco-dmo.org/dataset/3540/data/download
download
onLine
dataset
<p>Data were collected using a Brooke-Ocean Technology Laser Optical Plankton Counter model LOPC-660. Instrument was deployed in individual, vertical casts &lt; 200m in depth. The LOPC was calibrated prior to deployment; however, the data have not been examined in depth for quality control or assurance.<br />
<br />
Data have not been analyzed beyond the initial collection.<br />
<br />
Samples were taken in two locations:<br />
near the Macondo-1 well site: 28.736669 N, 88.387161 W<br />
offshore location bounded by 27.377-28.866667 N and 90.57366667-88.06766667 W</p>
Specified by the Principal Investigator(s)
<p>The data have been processed only by converting the original binary data into an ASCII format.<br />
Otherwise the data have not been processed.<br />
&nbsp;<br />
<strong>PI Note:</strong><br />
These date are processed enough so that people can follow the instructions to further analysis listed in the metadata.<br />
Any further processing would be specific to any users direction questions.<br />
&nbsp;<br />
<strong>BCO-DMO Processing Notes</strong><br />
Generated from original text file "LOPC_Locations.txt" contributed by David Kimmel<br />
<br />
<strong>BCO-DMO Edits</strong><br />
&nbsp;- Date reformatted to YYYYMMDD<br />
&nbsp;- Time reformatted to HHMM<br />
&nbsp;- Longitude values signed negative for West Longitude<br />
&nbsp;- "nd" (no data) value inserted in blank cells<br />
&nbsp;- Parameter names modified to conform to BCO-DMO convention</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
Laser Optical Plankton Counter
Laser Optical Plankton Counter
PI Supplied Instrument Name: Laser Optical Plankton Counter PI Supplied Instrument Description:Brooke Ocean Technology Laser Optical Plankton Counter (LOPC)
Laser Optical Plankton Counter Operation and Maintenance Manual. 2010. Brooke Ocean Technology (www.brooke-ocean.com).
Herman AW. LOPC post-processing page: http://www.alexherman.com/lopc_post.php. Contains software designed to enable first-time users of the LOPC to process data. Instrument Name: Laser Optical Plankton Counter Instrument Short Name:LOPC Instrument Description: Laser Optical Plankton Counter (LOPC) Community Standard Description: http://vocab.nerc.ac.uk/collection/L05/current/352/
Cruise: OC468-02
OC468-02
R/V Oceanus
Community Standard Description
International Council for the Exploration of the Sea
R/V Oceanus
vessel
OC468-02
Joseph Montoya
Georgia Institute of Technology
R/V Oceanus
Community Standard Description
International Council for the Exploration of the Sea
R/V Oceanus
vessel