http://lod.bco-dmo.org/id/dataset/4077
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
2013-11-07
ISO 19115-2 Geographic Information - Metadata - Part 2: Extensions for Imagery and Gridded Data
ISO 19115-2:2009(E)
Particle number depth profiles along a transect from R/V Pelagia 64PE280 in the tropical and subtropical Atlantic from 2007-2008 (Basin-scale Protists project)
2013-11-02
publication
2013-11-02
revision
BCO-DMO Linked Data URI
2013-11-02
creation
http://lod.bco-dmo.org/id/dataset/4077
Alexander Boris Bochdansky
Old Dominion University
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: Bochdansky, A. B. (2013) Particle number depth profiles along a transect from R/V Pelagia 64PE280 in the tropical and subtropical Atlantic from 2007-2008 (Basin-scale Protists project). Biological and Chemical Oceanography Data Management Office (BCO-DMO). (Version 1) Version Date 2013-11-02 [if applicable, indicate subset used]. http://lod.bco-dmo.org/id/dataset/4077 [access date]
Particle number depth profiles in (sub)tropical Atlantic transect Dataset Description: Methods and Sampling: <p>A black and white CCD video camera (Sentec) was mounted on a CTD frame which also held Niskin sample bottles, conductivity, temperature and oxygen probes and an optical backscatter sensor (Seapoint turbidity meter). The camera and digital video recorder were housed in a stainless steel cylinder with a 2.54 cm thick sapphire window as the optical port. Two high intensity LED lights were mounted in separate housings at approximately 45 degree angles at each side of the camera. The camera gain was set so that gelatinous zooplankton and the gelatinous matrix of marine snow particles were detectable but more opaque particles such as hard-bodied copepods were slightly overexposed. At a shutter speed of 1/1000 s, the camera recorded sharp images of particles at descent speeds of 1- 1.5 m s-1.&nbsp;&nbsp; The customized image analysis program (modified Avidemux on Ubuntu-Linux) was set to record particles larger than 6 contiguous pixels, which sets the lowest detectable particle sizes at approximately 500 microns. Absolute particle numbers per volume cannot be determined with this video setup. Because of interference from ambient light, particles could in most cases only be enumerated below the euphotic zone.<br />
&nbsp;</p>
Funding provided by NSF Division of Ocean Sciences (NSF OCE) Award Number: OCE-0826659 Award URL: https://www.nsf.gov/awardsearch/show-award?AWD_ID=0826659
Funding provided by NSF Division of Ocean Sciences (NSF OCE) Award Number: OCE-1235169 Award URL: https://www.nsf.gov/awardsearch/show-award?AWD_ID=1235169
completed
Alexander Boris Bochdansky
Old Dominion University
757-683-4933
Ocean, Earth and Atmospheric Sciences 4600 Elkhorn Ave.
Norfolk
VA
23529
USA
abochdan@odu.edu
pointOfContact
asNeeded
Dataset Version: 1
Unknown
cruise_id
date
sta
lat_sta
lon_sta
distance
depth
count
cruise_name
Camera
theme
None, User defined
Cruise identfier
date
station
latitude
longitude
No BCO-DMO term
depth
count
cruise name
featureType
BCO-DMO Standard Parameters
Camera
instrument
BCO-DMO Standard Instruments
64PE280
service
Deployment Activity
Tropical and subtropical Atlantic
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.
Integrated Marine Biogeochemistry and Ecosystem Research -US
http://www.imber.info/
Integrated Marine Biogeochemistry and Ecosystem Research -US
The BCO-DMO database includes data from IMBER endorsed projects lead by US funded investigators. There is no dedicated US IMBER project or data management office. Those functions are provided by US-OCB and BCO-DMO respectively.
The information in this program description pertains to the Internationally coordinated IMBER research program. The projects contributing data to the BCO-DMO database are those funded by US NSF only. The full IMBER data catalog is hosted at the Global Change Master Directory (GCMD).
IMBER Data Portal: The IMBER project has chosen to create a metadata portal hosted by the NASA's Global Change Master Directory (GCMD). The GCMD IMBER data catalog provides an overview of all IMBER endorsed and related projects and links to datasets, and can be found at URL http://gcmd.nasa.gov/portals/imber/.
IMBER research will seek to identify the mechanisms by which marine life influences marine biogeochemical cycles, and how these, in turn, influence marine ecosystems. Central to the IMBER goal is the development of a predictive understanding of how marine biogeochemical cycles and ecosystems respond to complex forcings, such as large-scale climatic variations, changing physical dynamics, carbon cycle chemistry and nutrient fluxes, and the impacts of marine harvesting. Changes in marine biogeochemical cycles and ecosystems due to global change will also have consequences for the broader Earth System. An even greater challenge will be drawing together the natural and social science communities to study some of the key impacts and feedbacks between the marine and human systems.
To address the IMBER goal, four scientific themes, each including several issues, have been identified for the IMBER project: Theme 1 - Interactions between Biogeochemical Cycles and Marine Food Webs; Theme 2 - Sensitivity to Global Change: How will key marine biogeochemical cycles, ecosystems and their interactions, respond to global change?; Theme 3 - Feedback to the Earth System: What are the roles of the ocean biogeochemistry and ecosystems in regulating climate?; and Theme 4 - Responses of Society: What are the relationships between marine biogeochemical cycles, ecosystems, and the human system?
IMBER-US
largerWorkCitation
program
Basin-scale distribution and activity of deep-sea protists in the North Atlantic Ocean
https://osprey.bco-dmo.org/project/2290
Basin-scale distribution and activity of deep-sea protists in the North Atlantic Ocean
<p>ABSTRACT</p>
<p>Little is known about the distribution and ecology of eukaryotic microbes of the deep sea water column. Most of these microbes are small heterotrophic flagellates that feed on bacteria, where biomass in turn is fueled by the input of dissolved and particulate organic material from the surface. This study seeks to understand the distribution of eukaryotic microbes (i.e., protists) in the context of large, basin scale variations in hydrographic and chemical properties. The main hypothesis is that the abundance and taxonomic composition of protists serve as sensitive indicators of the strength and type (particulate or dissolved) of input of organic carbon into the deep ocean system. Samples in vertical profiles targeting major water masses across the North Atlantic will be collected. In addition, deep sea samples will be retrieved under pressure and incubated at in situ pressure and temperature in four newly designed chemostat systems. These cultures will be sub-sampled under pressure and examined for nutrient concentration, as well as for the purpose of monitoring the abundance of both prokaryotes and protists in the chambers. Using the same pressure samplers in short-term incubations, the investigators will explore the activity of deep sea protists by investigating the proportion of actively feeding organisms on fluorescently labeled bacteria. They will enumerate deep sea protists using a combination of fluorescence in situ hybridization and traditional staining methods, and will support taxonomic classifications using electron microscopy. Semi-automated epifluorescence microscopy with image analysis capabilities will be used to scan major filter areas and probe for rare microbes that normally fall below detection limits of other methods. In laboratory experiments, the investigators will use the newly built culture system to study pressure effects of eukaryotic protists while simulating temperature and pressure changes that sinking particles are exposed to when they sink to the abyss.<br />
</p>
Basin-scale Protists
largerWorkCitation
project
eng; USA
oceans
Tropical and subtropical Atlantic
-31.797
-12.957
-2.569
12.148
2007-12-23
2008-01-10
Tropical and subtropical Atlantic
0
BCO-DMO catalogue of parameters from Particle number depth profiles along a transect from R/V Pelagia 64PE280 in the tropical and subtropical Atlantic from 2007-2008 (Basin-scale Protists 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/37318.rdf
Name: cruise_id
Units: unitless
Description: <p>cruise identification</p>
http://lod.bco-dmo.org/id/dataset-parameter/37319.rdf
Name: date
Units: UTC
Description: <p>date in the format YYYYMMDD</p>
http://lod.bco-dmo.org/id/dataset-parameter/37320.rdf
Name: sta
Units: unitless
Description: <p>station number</p>
http://lod.bco-dmo.org/id/dataset-parameter/37321.rdf
Name: lat_sta
Units: decimal degrees
Description: <p>latitude; north is positive</p>
http://lod.bco-dmo.org/id/dataset-parameter/37322.rdf
Name: lon_sta
Units: decimal degrees
Description: <p>longitude; east is postive</p>
http://lod.bco-dmo.org/id/dataset-parameter/37323.rdf
Name: distance
Units: nautical miles
Description: <p>distance from station 8</p>
http://lod.bco-dmo.org/id/dataset-parameter/37324.rdf
Name: depth
Units: meters
Description: <p>corrected depth</p>
http://lod.bco-dmo.org/id/dataset-parameter/37325.rdf
Name: count
Units: particles
Description: <p>moving average of particle numbers per frame of video equal to or exceeding 6 pixels in size</p>
http://lod.bco-dmo.org/id/dataset-parameter/471652.rdf
Name: cruise_name
Units: unitless
Description: alternate cruise name
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
5358929
https://datadocs.bco-dmo.org/file/0AAMnJjCG5WZJ4/particle_count.csv
particle_count.csv
Primary data file for dataset ID 4077
download
https://osprey.bco-dmo.org/dataset/4077/data/download
download
onLine
dataset
<p>A black and white CCD video camera (Sentec) was mounted on a CTD frame which also held Niskin sample bottles, conductivity, temperature and oxygen probes and an optical backscatter sensor (Seapoint turbidity meter). The camera and digital video recorder were housed in a stainless steel cylinder with a 2.54 cm thick sapphire window as the optical port. Two high intensity LED lights were mounted in separate housings at approximately 45 degree angles at each side of the camera. The camera gain was set so that gelatinous zooplankton and the gelatinous matrix of marine snow particles were detectable but more opaque particles such as hard-bodied copepods were slightly overexposed. At a shutter speed of 1/1000 s, the camera recorded sharp images of particles at descent speeds of 1- 1.5 m s-1.&nbsp;&nbsp; The customized image analysis program (modified Avidemux on Ubuntu-Linux) was set to record particles larger than 6 contiguous pixels, which sets the lowest detectable particle sizes at approximately 500 microns. Absolute particle numbers per volume cannot be determined with this video setup. Because of interference from ambient light, particles could in most cases only be enumerated below the euphotic zone.<br />
&nbsp;</p>
Specified by the Principal Investigator(s)
<p>A moving average with an unweighted 100 m window served as a low-pass filter for the particle data before they were matched with depths.<br />
&nbsp;</p>
<p><strong>Related files and references:</strong></p>
<p>Context data for this cruise are stored on the Centralized Oceanographic Data Information System (CODIS) of the Data Management Group at the Netherlands Institute of Sea Research (www.nioz.nl/portals-en). Cruise number: 64PE280.</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
Camera
Camera
PI Supplied Instrument Name: Camera PI Supplied Instrument Description:A black and white CCD video camera (Sentec) was mounted on a CTD frame which also held Niskin sample bottles, conductivity, temperature and oxygen probes and an optical backscatter sensor (Seapoint turbidity meter). The camera and digital video recorder were housed in a stainless steel cylinder with a 2.54 cm thick sapphire window as the optical port. Two high intensity LED lights were mounted in separate housings at approximately 45 degree angles at each side of the camera. The camera gain was set so that gelatinous zooplankton and the gelatinous matrix of marine snow particles were detectable but more opaque particles such as hard-bodied copepods were slightly overexposed. At a shutter speed of 1/1000 s, the camera recorded sharp images of particles at descent speeds of 1- 1.5 m s-1. Instrument Name: Camera Instrument Short Name:camera Instrument Description: All types of photographic equipment including stills, video, film and digital systems. Community Standard Description: http://vocab.nerc.ac.uk/collection/L05/current/311/
Cruise: 64PE280
64PE280
R/V Pelagia
Community Standard Description
International Council for the Exploration of the Sea
R/V Pelagia
vessel
64PE280
Dr Gerhard Herndl
Royal Netherlands Institute for Sea Research
http://melia.nioz.nl/phptoweb/dmg/melia-codis.php?script=search/bycruise.inc
Report describing 64PE280
R/V Pelagia
Community Standard Description
International Council for the Exploration of the Sea
R/V Pelagia
vessel