http://lod.bco-dmo.org/id/dataset/787432
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
2020-01-15
ISO 19115-2 Geographic Information - Metadata - Part 2: Extensions for Imagery and Gridded Data
ISO 19115-2:2009(E)
Large particulate matter concentration, biovolume, and sized distribution in the Pacific Ocean from 2015-04-11 to 2015-06-18 measured by the Underwater Vision Profiler 5 (UVP5) on the P16N Repeat Hydrography cruise aboard the NOAA Ship Ronald H. Brown
2021-04-27
publication
2021-04-27
revision
Marine Biological Laboratory/Woods Hole Oceanographic Institution Library (MBLWHOI DLA)
2021-07-09
publication
https://doi.org/10.26008/1912/bco-dmo.787432.2
Andrew M.P. McDonnell
University of Alaska Fairbanks
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: McDonnell, A. M. (2021) Large particulate matter concentration, biovolume, and sized distribution in the Pacific Ocean from 2015-04-11 to 2015-06-18 measured by the Underwater Vision Profiler 5 (UVP5) on the P16N Repeat Hydrography cruise aboard the NOAA Ship Ronald H. Brown. Biological and Chemical Oceanography Data Management Office (BCO-DMO). (Version 2) Version Date 2021-04-27 [if applicable, indicate subset used]. doi:10.26008/1912/bco-dmo.787432.2 [access date]
PAR UVP5 Dataset Description: <p>The Underwater Vision Profiler (UVP5) is an underwater camera system that was designed to record the vertical distributions of large aggregates and zooplankton (&gt; 102&nbsp;µm) down to 6000 m. Two units that consist of red-light emitting diodes (LEDs) illuminate (in 100 µsecond&nbsp;flashes) an area of 4 X 20 cm which provides a volume sampling of ~1L per frame. The UVP5&nbsp;was mounted on the bottom of each CTD rosette and collected data on each CTD cast (data are collected during the down cast). The methodology generally follows Picheral et al., 2010.</p> Methods and Sampling: <p>The Underwater Vision Profiler 5 (UVP5) was utilized to collect in situ images of particles and plankton across the 2015 P16N repeat hydrography transect from French Polynesia (17°S) to the northern Gulf of Alaska shelf (56.3°N), primarily along the 151°W and 152°W meridians. The UVP5 was integrated within the conductivity temperature depth (CTD) rosette, and several images per second were acquired during the downcasts, resulting in a total of 171 vertical profiles from both legs of the cruise, most spanning from the surface down to near the bottom. The UVP captured in situ images of particles and plankton in a mixed processing mode in which particles were sized, counted, and tabulated in real time during the profile. Subsequent processing bins these particle counts into discrete, pre-defined size bins ranging from 102 µm to &gt;26 mm in equivalent spherical diameter. Particle biovolume was also computed for each size bin. All data contained here is inclusive of both living and non-living particles and plankton.</p>
<p>Supplemental file "<a href="https://datadocs.bco-dmo.org/docs/305/GoA_Particles/data_docs/file_header_uvp5_sn009_2015_p16n_BCO-DMO_PAR.txt" target="_blank">file_header_uvp5_sn009_2015_p16n_BCO-DMO_PAR.txt</a>" contains additional metadata from the original file header.</p>
<p><strong>Known Problems:</strong><br />
Some profiles did not extend to the full depth of the CTD cast because of problems with the rechargeable lithium ion battery onboard the UVP.</p>
Funding provided by NSF Division of Ocean Sciences (NSF OCE) Award Number: OCE-1459835 Award URL: https://www.nsf.gov/awardsearch/show-award?AWD_ID=1459835
completed
Andrew M.P. McDonnell
University of Alaska Fairbanks
907-474-7529
College of Fisheries and Ocean Sciences 2150 Koyukuk Dr., 245 O'Neill Bldg.
Fairbanks
AK
99775-7220
USA
amcdonnell@alaska.edu
pointOfContact
asNeeded
Dataset Version: 2
Unknown
station
profile
UVP_rawfilename
ISO_DateTime_UTC
date
time
lat
lon
bin_depth
volume
abundance_102_128_um
abundance_128_161_um
abundance_161_203_um
abundance_203_256_um
abundance_256_323_um
abundance_323_406_um
abundance_406_512_um
abundance_512_645_um
abundance_645_813_um
abundance_0p813_1p02_mm
abundance_1p02_1p29_mm
abundance_1p29_1p63_mm
abundance_1p63_2p05_mm
abundance_2p05_2p58_mm
abundance_2p58_3p25_mm
abundance_3p25_4p1_mm
abundance_4p1_5p16_mm
abundance_5p16_6p5_mm
abundance_6p5_8p19_mm
abundance_8p19_10p3_mm
abundance_10p3_13_mm
abundance_13_16p4_mm
abundance_16p4_20p6_mm
abundance_20p6_26_mm
abundance_gt26_mm
biovolume_102_128_um
biovolume_128_161_um
biovolume_161_203_um
biovolume_203_256_um
biovolume_256_323_um
biovolume_323_406_um
biovolume_406_512_um
biovolume_512_645_um
biovolume_645_813_um
biovolume_0p813_1p02_mm
biovolume_1p02_1p29_mm
biovolume_1p29_1p63_mm
biovolume_1p63_2p05_mm
biovolume_2p05_2p58_mm
biovolume_2p58_3p25_mm
biovolume_3p25_4p1_mm
biovolume_4p1_5p16_mm
biovolume_5p16_6p5_mm
biovolume_6p5_8p19_mm
biovolume_8p19_10p3_mm
biovolume_10p3_13_mm
biovolume_13_16p4_mm
biovolume_16p4_20p6_mm
biovolume_20p6_26_mm
biovolume_gt26_mm
Underwater Vision Profiler 5 (UVP5)
theme
None, User defined
station
cast
file_name
ISO_DateTime_UTC
date
time of day
latitude
longitude
depth
volume
abundance
biovolume
featureType
BCO-DMO Standard Parameters
Underwater Vision Profiler 5
instrument
BCO-DMO Standard Instruments
RB1503_leg1
RB1503_leg2
service
Deployment Activity
Tahiti, FP to Honolulu, Hawaii
Honolulu, HI to Seattle, WA
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.
Variability in particle size distributions, sinking velocities, and fluxes in the northern Gulf of Alaska
https://osprey.bco-dmo.org/project/774130
Variability in particle size distributions, sinking velocities, and fluxes in the northern Gulf of Alaska
<p>NSF abstract:<br />
The sinking of particles from the sunlit zone of the ocean into the ocean interior constitutes a dominant component of the sequestering of carbon into the deep ocean, otherwise known as the ocean's biological carbon pump. The quantities of particulate matter being exported out of the sunlit zone, as well as the tapering-off of these fluxes with respect to depth, have a substantial impact on the distribution of carbon and other important elements throughout the oceans and control the concentration of carbon dioxide in the atmosphere. For these reasons, it is critical that we gain a comprehensive understanding of the magnitude of these elemental fluxes, their variability in space and time, and the processes that control them. The focus of the of this project is to make new, broadly informative discoveries with regard to the function of the ocean's biological carbon pump and the ability to quantify and monitor its strength and efficiency at high spatial and temporal resolutions. In addition, this project will provide the first quantitative and mechanistic study of sinking particle fluxes in the northern Gulf of Alaska by working in conjunction with the ongoing Seward Line Long-term Observational Program. The project will be carried out under the direction of an early career faculty member and provide a training opportunity for a postdoctoral researcher. Results from the study will be shared with the broader public through a variety of print and digital platforms.</p>
<p>The fluxes of carbon out of the euphotic zone and through subsurface waters are poorly quantified and understood, especially relative to other dominant oceanic carbon flows such as the air-sea gas exchange of carbon dioxide or rates of primary production in surface waters. The inability to differentiate between variability in particle concentration and sinking velocities as the drivers of flux variability is a critical gap in our understanding of the biological carbon pump. The Gulf of Alaska is an optimal site for investigating these processes as the cycling of carbon and other elements in waters above continental shelves, such as the Gulf of Alaska, is highly complex due to the dynamic interplay of chemical, physical, biological, and anthropogenic processes. Using a creative application of short-term sediment trap deployments combined with the use of a unique pair of in situ optical instruments, the researchers will aim to accomplish two specific goals: 1) Quantify the average sinking velocities of small particles and their contribution to the total carbon flux from particles of all sizes; and 2) Determine the relative variability in particle abundances and sinking velocities and assess how it translates into variable patterns of particle flux in the northern Gulf of Alaska.</p>
<p>Affiliated Programs:<br />
Seward Line LTOP, NGA-LTER, US GO-SHIP</p>
GoA Particles
largerWorkCitation
project
eng; USA
oceans
Tahiti, FP to Honolulu, Hawaii; Honolulu, HI to Seattle, WA
-153.23287
-149.86171
-16.95559
56.29027
2015-04-11
2015-06-18
Pacific Ocean, Gulf of Alaska
0
BCO-DMO catalogue of parameters from Large particulate matter concentration, biovolume, and sized distribution in the Pacific Ocean from 2015-04-11 to 2015-06-18 measured by the Underwater Vision Profiler 5 (UVP5) on the P16N Repeat Hydrography cruise aboard the NOAA Ship Ronald H. Brown
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/850948.rdf
Name: station
Units: unitless
Description: <p>Site</p>
http://lod.bco-dmo.org/id/dataset-parameter/850949.rdf
Name: profile
Units: unitless
Description: <p>Profile name</p>
http://lod.bco-dmo.org/id/dataset-parameter/850950.rdf
Name: UVP_rawfilename
Units: unitless
Description: <p>Raw file name from UVP</p>
http://lod.bco-dmo.org/id/dataset-parameter/850951.rdf
Name: ISO_DateTime_UTC
Units: unitless
Description: <p>Date and time (UTC); formatted to ISO8601 standard: YYYY-MM-DDThh:mm:ssZ</p>
http://lod.bco-dmo.org/id/dataset-parameter/850952.rdf
Name: date
Units: unitless
Description: <p>Date</p>
http://lod.bco-dmo.org/id/dataset-parameter/850953.rdf
Name: time
Units: unitless
Description: <p>Time (UTC)</p>
http://lod.bco-dmo.org/id/dataset-parameter/850954.rdf
Name: lat
Units: decimal degrees North
Description: <p>Latitude in decimal degrees (positive values = North)</p>
http://lod.bco-dmo.org/id/dataset-parameter/850955.rdf
Name: lon
Units: decimal degrees East
Description: <p>Longitude in decimal degrees (positive values = East)</p>
http://lod.bco-dmo.org/id/dataset-parameter/850956.rdf
Name: bin_depth
Units: meters (m)
Description: <p>Depth, midpoint of 5m depth bin</p>
http://lod.bco-dmo.org/id/dataset-parameter/850957.rdf
Name: volume
Units: liters (L)
Description: <p>Total volume of water sampled within each depth bin</p>
http://lod.bco-dmo.org/id/dataset-parameter/850958.rdf
Name: abundance_102_128_um
Units: number/L
Description: <p>Abundance of particles with an equivalent spherical diameter between 102-128 micrometers</p>
http://lod.bco-dmo.org/id/dataset-parameter/850959.rdf
Name: abundance_128_161_um
Units: number/L
Description: <p>Abundance of particles with an equivalent spherical diameter between 128-161 micrometers</p>
http://lod.bco-dmo.org/id/dataset-parameter/850960.rdf
Name: abundance_161_203_um
Units: number/L
Description: <p>Abundance of particles with an equivalent spherical diameter between 161-203 micrometers</p>
http://lod.bco-dmo.org/id/dataset-parameter/850961.rdf
Name: abundance_203_256_um
Units: number/L
Description: <p>Abundance of particles with an equivalent spherical diameter between 203-256 micrometers</p>
http://lod.bco-dmo.org/id/dataset-parameter/850962.rdf
Name: abundance_256_323_um
Units: number/L
Description: <p>Abundance of particles with an equivalent spherical diameter between 256-323 micrometers</p>
http://lod.bco-dmo.org/id/dataset-parameter/850963.rdf
Name: abundance_323_406_um
Units: number/L
Description: <p>Abundance of particles with an equivalent spherical diameter between 323-406 micrometers</p>
http://lod.bco-dmo.org/id/dataset-parameter/850964.rdf
Name: abundance_406_512_um
Units: number/L
Description: <p>Abundance of particles with an equivalent spherical diameter between 406-512 micrometers</p>
http://lod.bco-dmo.org/id/dataset-parameter/850965.rdf
Name: abundance_512_645_um
Units: number/L
Description: <p>Abundance of particles with an equivalent spherical diameter between 512-645 micrometers</p>
http://lod.bco-dmo.org/id/dataset-parameter/850966.rdf
Name: abundance_645_813_um
Units: number/L
Description: <p>Abundance of particles with an equivalent spherical diameter between 645-813 micrometers</p>
http://lod.bco-dmo.org/id/dataset-parameter/850967.rdf
Name: abundance_0p813_1p02_mm
Units: number/L
Description: <p>Abundance of particles with an equivalent spherical diameter between 0.813-1.02 millimeters</p>
http://lod.bco-dmo.org/id/dataset-parameter/850968.rdf
Name: abundance_1p02_1p29_mm
Units: number/L
Description: <p>Abundance of particles with an equivalent spherical diameter between 1.02-1.29 millimeters</p>
http://lod.bco-dmo.org/id/dataset-parameter/850969.rdf
Name: abundance_1p29_1p63_mm
Units: number/L
Description: <p>Abundance of particles with an equivalent spherical diameter between 1.29-1.63 millimeters</p>
http://lod.bco-dmo.org/id/dataset-parameter/850970.rdf
Name: abundance_1p63_2p05_mm
Units: number/L
Description: <p>Abundance of particles with an equivalent spherical diameter between 1.63-2.05 millimeters</p>
http://lod.bco-dmo.org/id/dataset-parameter/850971.rdf
Name: abundance_2p05_2p58_mm
Units: number/L
Description: <p>Abundance of particles with an equivalent spherical diameter between 2.05-2.58 millimeters</p>
http://lod.bco-dmo.org/id/dataset-parameter/850972.rdf
Name: abundance_2p58_3p25_mm
Units: number/L
Description: <p>Abundance of particles with an equivalent spherical diameter between 2.58-3.25 millimeters</p>
http://lod.bco-dmo.org/id/dataset-parameter/850973.rdf
Name: abundance_3p25_4p1_mm
Units: number/L
Description: <p>Abundance of particles with an equivalent spherical diameter between 3.25-4.1 millimeters</p>
http://lod.bco-dmo.org/id/dataset-parameter/850974.rdf
Name: abundance_4p1_5p16_mm
Units: number/L
Description: <p>Abundance of particles with an equivalent spherical diameter between 4.1-5.16 millimeters</p>
http://lod.bco-dmo.org/id/dataset-parameter/850975.rdf
Name: abundance_5p16_6p5_mm
Units: number/L
Description: <p>Abundance of particles with an equivalent spherical diameter between 5.16-6.5 millimeters</p>
http://lod.bco-dmo.org/id/dataset-parameter/850976.rdf
Name: abundance_6p5_8p19_mm
Units: number/L
Description: <p>Abundance of particles with an equivalent spherical diameter between 6.5-8.19 millimeters</p>
http://lod.bco-dmo.org/id/dataset-parameter/850977.rdf
Name: abundance_8p19_10p3_mm
Units: number/L
Description: <p>Abundance of particles with an equivalent spherical diameter between 8.19-10.3 millimeters</p>
http://lod.bco-dmo.org/id/dataset-parameter/850978.rdf
Name: abundance_10p3_13_mm
Units: number/L
Description: <p>Abundance of particles with an equivalent spherical diameter between 10.3-13 millimeters</p>
http://lod.bco-dmo.org/id/dataset-parameter/850979.rdf
Name: abundance_13_16p4_mm
Units: number/L
Description: <p>Abundance of particles with an equivalent spherical diameter between 13-16.4 millimeters</p>
http://lod.bco-dmo.org/id/dataset-parameter/850980.rdf
Name: abundance_16p4_20p6_mm
Units: number/L
Description: <p>Abundance of particles with an equivalent spherical diameter between 16.4-20.6 millimeters</p>
http://lod.bco-dmo.org/id/dataset-parameter/850981.rdf
Name: abundance_20p6_26_mm
Units: number/L
Description: <p>Abundance of particles with an equivalent spherical diameter between 20.6-26 millimeters</p>
http://lod.bco-dmo.org/id/dataset-parameter/850982.rdf
Name: abundance_gt26_mm
Units: number/L
Description: <p>Abundance of particles with an equivalent spherical diameter greater than 26 millimeters</p>
http://lod.bco-dmo.org/id/dataset-parameter/850983.rdf
Name: biovolume_102_128_um
Units: mm^3/L
Description: <p>Biovolume of particles with an equivalent spherical diameter between 102-128 micrometers</p>
http://lod.bco-dmo.org/id/dataset-parameter/850984.rdf
Name: biovolume_128_161_um
Units: mm^3/L
Description: <p>Biovolume of particles with an equivalent spherical diameter between 128-161 micrometers</p>
http://lod.bco-dmo.org/id/dataset-parameter/850985.rdf
Name: biovolume_161_203_um
Units: mm^3/L
Description: <p>Biovolume of particles with an equivalent spherical diameter between 161-203 micrometers</p>
http://lod.bco-dmo.org/id/dataset-parameter/850986.rdf
Name: biovolume_203_256_um
Units: mm^3/L
Description: <p>Biovolume of particles with an equivalent spherical diameter between 203-256 micrometers</p>
http://lod.bco-dmo.org/id/dataset-parameter/850987.rdf
Name: biovolume_256_323_um
Units: mm^3/L
Description: <p>Biovolume of particles with an equivalent spherical diameter between 256-323 micrometers</p>
http://lod.bco-dmo.org/id/dataset-parameter/850988.rdf
Name: biovolume_323_406_um
Units: mm^3/L
Description: <p>Biovolume of particles with an equivalent spherical diameter between 323-406 micrometers</p>
http://lod.bco-dmo.org/id/dataset-parameter/850989.rdf
Name: biovolume_406_512_um
Units: mm^3/L
Description: <p>Biovolume of particles with an equivalent spherical diameter between 406-512 micrometers</p>
http://lod.bco-dmo.org/id/dataset-parameter/850990.rdf
Name: biovolume_512_645_um
Units: mm^3/L
Description: <p>Biovolume of particles with an equivalent spherical diameter between 512-645 micrometers</p>
http://lod.bco-dmo.org/id/dataset-parameter/850991.rdf
Name: biovolume_645_813_um
Units: mm^3/L
Description: <p>Biovolume of particles with an equivalent spherical diameter between 645-813 micrometers</p>
http://lod.bco-dmo.org/id/dataset-parameter/850992.rdf
Name: biovolume_0p813_1p02_mm
Units: mm^3/L
Description: <p>Biovolume of particles with an equivalent spherical diameter between 0.813-1.02 millimeters</p>
http://lod.bco-dmo.org/id/dataset-parameter/850993.rdf
Name: biovolume_1p02_1p29_mm
Units: mm^3/L
Description: <p>Biovolume of particles with an equivalent spherical diameter between 1.02-1.29 millimeters</p>
http://lod.bco-dmo.org/id/dataset-parameter/850994.rdf
Name: biovolume_1p29_1p63_mm
Units: mm^3/L
Description: <p>Biovolume of particles with an equivalent spherical diameter between 1.29-1.63 millimeters</p>
http://lod.bco-dmo.org/id/dataset-parameter/850995.rdf
Name: biovolume_1p63_2p05_mm
Units: mm^3/L
Description: <p>Biovolume of particles with an equivalent spherical diameter between 1.63-2.05 millimeters</p>
http://lod.bco-dmo.org/id/dataset-parameter/850996.rdf
Name: biovolume_2p05_2p58_mm
Units: mm^3/L
Description: <p>Biovolume of particles with an equivalent spherical diameter between 2.05-2.58 millimeters</p>
http://lod.bco-dmo.org/id/dataset-parameter/850997.rdf
Name: biovolume_2p58_3p25_mm
Units: mm^3/L
Description: <p>Biovolume of particles with an equivalent spherical diameter between 2.58-3.25 millimeters</p>
http://lod.bco-dmo.org/id/dataset-parameter/850998.rdf
Name: biovolume_3p25_4p1_mm
Units: mm^3/L
Description: <p>Biovolume of particles with an equivalent spherical diameter between 3.25-4.1 millimeters</p>
http://lod.bco-dmo.org/id/dataset-parameter/850999.rdf
Name: biovolume_4p1_5p16_mm
Units: mm^3/L
Description: <p>Biovolume of particles with an equivalent spherical diameter between 4.1-5.16 millimeters</p>
http://lod.bco-dmo.org/id/dataset-parameter/851000.rdf
Name: biovolume_5p16_6p5_mm
Units: mm^3/L
Description: <p>Biovolume of particles with an equivalent spherical diameter between 5.16-6.5 millimeters</p>
http://lod.bco-dmo.org/id/dataset-parameter/851001.rdf
Name: biovolume_6p5_8p19_mm
Units: mm^3/L
Description: <p>Biovolume of particles with an equivalent spherical diameter between 6.5-8.19 millimeters</p>
http://lod.bco-dmo.org/id/dataset-parameter/851002.rdf
Name: biovolume_8p19_10p3_mm
Units: mm^3/L
Description: <p>Biovolume of particles with an equivalent spherical diameter between 8.19-10.3 millimeters</p>
http://lod.bco-dmo.org/id/dataset-parameter/851003.rdf
Name: biovolume_10p3_13_mm
Units: mm^3/L
Description: <p>Biovolume of particles with an equivalent spherical diameter between 10.3-13 millimeters</p>
http://lod.bco-dmo.org/id/dataset-parameter/851004.rdf
Name: biovolume_13_16p4_mm
Units: mm^3/L
Description: <p>Biovolume of particles with an equivalent spherical diameter between 13-16.4 millimeters</p>
http://lod.bco-dmo.org/id/dataset-parameter/851005.rdf
Name: biovolume_16p4_20p6_mm
Units: mm^3/L
Description: <p>Biovolume of particles with an equivalent spherical diameter between 16.4-20.6 millimeters</p>
http://lod.bco-dmo.org/id/dataset-parameter/851006.rdf
Name: biovolume_20p6_26_mm
Units: mm^3/L
Description: <p>Biovolume of particles with an equivalent spherical diameter between 20.6-26 millimeters</p>
http://lod.bco-dmo.org/id/dataset-parameter/851007.rdf
Name: biovolume_gt26_mm
Units: mm^3/L
Description: <p>Biovolume of particles with an equivalent spherical diameter greater than 26 millimeters</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
48510275
https://darchive.mblwhoilibrary.org/bitstream/1912/27318/1/dataset-787432_par__v2.tsv
download
https://doi.org/10.26008/1912/bco-dmo.787432.2
download
onLine
dataset
<p>The Underwater Vision Profiler 5 (UVP5) was utilized to collect in situ images of particles and plankton across the 2015 P16N repeat hydrography transect from French Polynesia (17°S) to the northern Gulf of Alaska shelf (56.3°N), primarily along the 151°W and 152°W meridians. The UVP5 was integrated within the conductivity temperature depth (CTD) rosette, and several images per second were acquired during the downcasts, resulting in a total of 171 vertical profiles from both legs of the cruise, most spanning from the surface down to near the bottom. The UVP captured in situ images of particles and plankton in a mixed processing mode in which particles were sized, counted, and tabulated in real time during the profile. Subsequent processing bins these particle counts into discrete, pre-defined size bins ranging from 102 µm to &gt;26 mm in equivalent spherical diameter. Particle biovolume was also computed for each size bin. All data contained here is inclusive of both living and non-living particles and plankton.</p>
<p>Supplemental file "<a href="https://datadocs.bco-dmo.org/docs/305/GoA_Particles/data_docs/file_header_uvp5_sn009_2015_p16n_BCO-DMO_PAR.txt" target="_blank">file_header_uvp5_sn009_2015_p16n_BCO-DMO_PAR.txt</a>" contains additional metadata from the original file header.</p>
<p><strong>Known Problems:</strong><br />
Some profiles did not extend to the full depth of the CTD cast because of problems with the rechargeable lithium ion battery onboard the UVP.</p>
Specified by the Principal Investigator(s)
<p>The UVP5 software acquires and processes images in real time. The gain, shutter and LED pulses are controlled and the background image is removed. Images are acquired and processed to get size and grey level for each image. Size information on all detected particles is stored and images of individual particles and plankton larger than 500 µm in equivalent spherical diameter are segmented and saved for later identification. Image post processing and metadata creation is accomplished with the Zooprocess software. Tabulated particle data are used to sum the number and volume of particles within predefined size and depth bins, allowing for the computation of the Datasets. Data and images have been uploaded to the Ecotaxa website (<a href="http://ecotaxa.obs-vlfr.fr/" target="_blank"><u>http://ecotaxa.obs-vlfr.fr/</u></a>) which serves as a tool for particle and zooplankton identification with machine learning and human verification, as well as a repository for all globally collected UVP data. Data files for particle and zooplankton abundances are exported from the Ecotaxa particle module in detailed Ocean Data View (ODV) format, and reformatted for submission to BCO-DMO. The size distribution data is reported in non-differential forms (simply the concentration of particles in each size bin) as well as on a numeric and particle volume basis assuming all particles are spherical. The size bin limits are defined in equivalent spherical diameter (ESD), where ESD = (4 <em>S<sub>m</sub></em> π<sup>-1</sup>)<sup>-0.5</sup> where <em>S<sub>m</sub></em> is the projected area of each particle in mm² and the particle concentrations are reported for each size bin defined by the log-transformed center of each size bin in µm. The biovolume is computed as the sum of the individual spherical volumes of each particle issued from the calibrated ESD.</p>
<p>This dataset was prepared using the scripts archived in this Github repository:&nbsp;<a href="https://github.com/britairving/UVP_submission_formatting" target="_blank">https://github.com/britairving/UVP_submission_formatting</a>. This repo has been&nbsp;forked by BCO-DMO to ensure a copy of the code is available.&nbsp;This can be accessed at&nbsp;<a href="https://github.com/BCODMO/UVP_submission_formatting" target="_blank">https://github.com/BCODMO/UVP_submission_formatting</a>. A .zip file of the code is also attached to this dataset as a Supplemental File.</p>
<p><strong>BCO-DMO Processing Notes:</strong><br />
-added conventional header with dataset name, PI name, version date;<br />
- added ISO_DateTime_UTC field with times formatted following ISO8601 conventions;<br />
- renamed fields to comply with BCO-DMO naming conventions;<br />
- replaced "-9999.000000" with "nd" to indicate "no data".</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
Underwater Vision Profiler 5 (UVP5)
Underwater Vision Profiler 5 (UVP5)
PI Supplied Instrument Name: Underwater Vision Profiler 5 (UVP5) PI Supplied Instrument Description:Underwater Vision Profiler 5 (UVP5), Manufactured by Hydroptic serial number sn009 Instrument Name: Underwater Vision Profiler 5 Instrument Short Name:UVP5 Instrument Description: A description of the UVP5 instrument can be found in the following publication: Picheral, M., L. Guidi, L. Stemmann, D. M. Karl, G. Iddaoud, and G. Gorsky. 2010. The Underwater Vision Profiler 5: An advanced instrument for high spatial resolution studies of particle size spectra and zooplankton. Limnol. Oceanogr. Meth. 8: 462-473. (doi: 10.4319/lom.2010.8.462)
Cruise: RB1503_leg1
RB1503_leg1
Community Standard Description
International Council for the Exploration of the Sea
NOAA Ship Ronald H. Brown
vessel
RB1503_leg1
Jessica Cross
http://dx.doi.org/10.7942/C2WC7C
Report describing RB1503_leg1
Cruise: RB1503_leg2
RB1503_leg2
Community Standard Description
International Council for the Exploration of the Sea
NOAA Ship Ronald H. Brown
vessel
RB1503_leg2
Alison Macdonald
Woods Hole Oceanographic Institution
http://dx.doi.org/10.7942/C2RP43
Report describing RB1503_leg2
Community Standard Description
International Council for the Exploration of the Sea
NOAA Ship Ronald H. Brown
vessel