http://lod.bco-dmo.org/id/dataset/719221
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
2017-11-14
ISO 19115-2 Geographic Information - Metadata - Part 2: Extensions for Imagery and Gridded Data
ISO 19115-2:2009(E)
CTD data collected during MOCNESS tows with both 1m2 and 10m2 mouth openings from RVIB Nathaniel B. Palmer NBP1002 in the Western Antarctic Peninsula from March to May 2010 (Antarctic_micronek project)
2016-02-11
publication
2016-02-11
revision
BCO-DMO Linked Data URI
2016-02-11
creation
http://lod.bco-dmo.org/id/dataset/719221
Dr Joseph J. Torres
University of South Florida
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: Torres, J. J. (2016) CTD data collected during MOCNESS tows with both 1m2 and 10m2 mouth openings from RVIB Nathaniel B. Palmer NBP1002 in the Western Antarctic Peninsula from March to May 2010 (Antarctic_micronek project). Biological and Chemical Oceanography Data Management Office (BCO-DMO). (Version close to final) Version Date 2016-02-11 [if applicable, indicate subset used]. http://lod.bco-dmo.org/id/dataset/719221 [access date]
CTD data collected during MOCNESS tows with both 1m2 and 10m2 mouth openings Dataset Description: <h2>CTD observations taken simultaneously during MOCNESS tows,</h2>
<p>The MOCNESS is based on the Tucker Trawl principle (Tucker, 1951). The particular MOCNESS system from which these CTD data came is one of two net systems. The MOCNESS-1 has nine rectangular nets (1m x 1.4 m) which are opened and closed sequentially by commands through conducting cable from the surface (Wiebe <em>et al.</em>, 1976). In both systems, "the underwater unit sends a data frame, comprised of temperature, depth, conductivity, net-frame angle, flow count, time, number of open net, and net opening/closing, to the deck unit in a compressed hexadecimal format every 2 seconds and from the deck unit to a microcomputer every 4 seconds... Temperature (to approximately 0.01 deg C) and conductivity are measured with SEABIRD sensors.<br />
Normally, a modified T.S.K.-flowmeter is used... Both the temperature and conductivity sensors and the flow meter are mounted on top of the frame so that they face horizontally when the frame is at a towing angle of 45deg... Calculations of salinity (to approximately 0.01 o/oo S), potential temperature (theta), potential density (sigma), the oblique and vertical velocities of the net, and the approximate volume filtered by each net are made after each string of data has been received by the computer." (Wiebe <em>et al.</em>, 1985)</p>
<p>It should be noted that due to Antarctic cold, the first few minutes of data are often of questionable value as they are extremely variable and have a high frequency of "50.000" (indicating "bad values") in the temp, theta and sal fields. Once the sensors encounter deeper, warmer water, they start recording good values.</p>
<p>For additional information, contact the <a href="http://globec.whoi.edu/jg/serv/globec/soglobec/inventory.html0?project,name_prin"> chief scientist</a> for the cruise.</p>
<p>&nbsp;</p> Methods and Sampling: <p>The MOCNESS is based on the Tucker Trawl principle (Tucker, 1951). The particular MOCNESS system from which these CTD data came is one of two net systems. The MOCNESS-1 has nine rectangular nets (1m x 1.4 m) which are opened and closed sequentially by commands through conducting cable from the surface (Wiebe et al., 1976). The MOCNESS-10 (with 10 m2 nets)carries 6 nets of 3.0-mm circular mesh. In both systems, 'the underwater unit sends a data frame, comprised of temperature, depth, conductivity, net-frame angle, flow count, time, number of open net, and net opening/closing, to the deck unit in a compressed hexadecimal format every 2 seconds and from the deck unit to a microcomputer every 4 seconds... Temperature (to approximately 0.01 deg C) and conductivity are measured with SEABIRD sensors. Normally, a modified T.S.K.-flowmeter is used... Both the temperature and conductivity sensors and the flow meter are mounted on top of the frame so that they face horizontally when the frame is at a towing angle of 45deg... Calculations of salinity (to approximately 0.01 o/oo S), potential temperature (theta), potential density (sigma), the oblique and vertical velocities of the net, and the approximate volume filtered by each net are made after each string of data has been received by the computer.' (Wiebe et al., 1985)</p>
Funding provided by NSF Antarctic Sciences (NSF ANT) Award Number: ANT-0741348 Award URL: https://www.nsf.gov/awardsearch/show-award?AWD_ID=0741348
onGoing
Dr Joseph J. Torres
University of South Florida
home/ofc: 828-877-5235
P.O. Box 308
Brevard
NC
28712
USA
jjtorres@usf.edu
pointOfContact
asNeeded
Dataset Version: close to final
Unknown
cruiseid
temp
datatype
year
tow
day_local
month_local
yrday_local
time_local
press
potemp
sal
sigma_0
angle
flow
hzvel
vtvel
vol_filt
net
lat
lon
Conductivity, Temperature, Depth
CTD MOCNESS
theme
None, User defined
cruise id
water temperature at measurement depth
datatype
year
tow
day_local
month_local
day of year and decimal time (local time zone)
time_local
water pressure
potential temperature
salinity
sigma-theta
angle of tow body relative to vertical
flow
horizontal velocity towed
vertical velocity towed
volume of water filtered
net
latitude
longitude
featureType
BCO-DMO Standard Parameters
CTD - profiler
CTD MOCNESS
instrument
BCO-DMO Standard Instruments
NBP1002
service
Deployment Activity
Western Antarctic Peninsula
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.
Possible climate-induced change in the distribution of Pleuragramma antarcticum on the Western Antarctic Peninsula Shelf
https://osprey.bco-dmo.org/project/474280
Possible climate-induced change in the distribution of Pleuragramma antarcticum on the Western Antarctic Peninsula Shelf
<p><em>Pleuragramma antarcticu</em>m, the Antarctic silverfish, plays a key role in the trophic pyramid of the Antarctic coastal ecosystem, acting as food for larger fishes, flying and non-flying seabirds, pinnipeds, and whales. In turn, they are predators on coastal euphausiids, including both <em>Euphausia superba</em> and <em>E.</em> <em>crystallorophias</em>. Historically, <em>Pleuragramma</em> have been an important food source for Adélie Penguins of the Western Antarctic Peninsula (WAP), but during the last decade <em>Pleuragramma</em> have disappeared from the Adélie diet. We suggest that <em>Pleuragramma</em>'s absence from the diets of top predators is linked to the declining sea ice canopy, which serves as a nursery for eggs and larvae during the austral spring. The research will investigate four hydrographic regimes over the WAP continental shelf with the following features: (1) persistent gyral flows that act to retain locally spawned larvae, (2) spring sea ice that has declined in recent years (3) the prevalence of adult silverfish, and (4) the presence of breeding Adélie penguins whose diets vary in the proportions of silverfish consumed. The research will evaluate the importance of local reproduction versus larval advection, and the extent to which populations in the subregions of study are genetically distinct, via analysis of population structure, otolith microchemistry and molecular genetics of fish. The <em>Pleuragramma</em> data will be compared with penguin diet samples taken synoptically. </p>
Antarctic_micronek
largerWorkCitation
project
eng; USA
oceans
Western Antarctic Peninsula
-76.8703
-56.5145
-70.42
-63.4033
2010-03-10
2010-04-27
Western Antarctic Peninsula
0
BCO-DMO catalogue of parameters from CTD data collected during MOCNESS tows with both 1m2 and 10m2 mouth openings from RVIB Nathaniel B. Palmer NBP1002 in the Western Antarctic Peninsula from March to May 2010 (Antarctic_micronek 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/719261.rdf
Name: cruiseid
Units: unknown
Description: <p>cruise identification, e.g. NBP0202, for RVIB Palmer cruise 0202</p>
http://lod.bco-dmo.org/id/dataset-parameter/719262.rdf
Name: temp
Units: degrees C
Description: <p>temperature of water</p>
http://lod.bco-dmo.org/id/dataset-parameter/719263.rdf
Name: datatype
Units: unknown
Description: <p>sampling method - instrument type, e.g. MOCNESS-1 or MOCNESS-10</p>
http://lod.bco-dmo.org/id/dataset-parameter/719264.rdf
Name: year
Units: unknown
Description: <p>year</p>
http://lod.bco-dmo.org/id/dataset-parameter/719266.rdf
Name: tow
Units: dimensionless
Description: <p>tow number</p>
http://lod.bco-dmo.org/id/dataset-parameter/719267.rdf
Name: day_local
Units: unknown
Description: <p>day of month, local time, 1-31</p>
http://lod.bco-dmo.org/id/dataset-parameter/719268.rdf
Name: month_local
Units: unknown
Description: <p>month of year, local time, 1 - 12</p>
http://lod.bco-dmo.org/id/dataset-parameter/719271.rdf
Name: yrday_local
Units: YYY.Yyyyyy
Description: <p>year day as a decimal, based on Julian calendar, local; includes time due to precision</p>
http://lod.bco-dmo.org/id/dataset-parameter/719272.rdf
Name: time_local
Units: HHmm.m
Description: <p>time, local using 24 hour clock to decimal minutes</p>
http://lod.bco-dmo.org/id/dataset-parameter/719273.rdf
Name: press
Units: meters
Description: <p>depth of observation or sample</p>
http://lod.bco-dmo.org/id/dataset-parameter/719274.rdf
Name: potemp
Units: unknown
Description: <p>potential temperature or theta<sup>1</sup> ¹Fofonoff and Millard, 1983, UNESCO technical papers in Marine Sciences, #44</p>
http://lod.bco-dmo.org/id/dataset-parameter/719275.rdf
Name: sal
Units: dimensionless
Description: <p>salinity calculated from conductivity, bad values are set to 50</p>
http://lod.bco-dmo.org/id/dataset-parameter/719276.rdf
Name: sigma_0
Units: unknown
Description: <p>potential density<sup>1</sup></p>
<p>¹Fofonoff and Millard, 1983, UNESCO technical papers in Marine Sciences, #44 </p>
http://lod.bco-dmo.org/id/dataset-parameter/719278.rdf
Name: angle
Units: degrees
Description: <p>angle of net frame relative to vertical (0-89 degrees)</p>
http://lod.bco-dmo.org/id/dataset-parameter/719279.rdf
Name: flow
Units: unknown
Description: <p>consecutive flow counts</p>
http://lod.bco-dmo.org/id/dataset-parameter/719280.rdf
Name: hzvel
Units: m/min
Description: <p>horizontal net velocity</p>
http://lod.bco-dmo.org/id/dataset-parameter/719281.rdf
Name: vtvel
Units: m/min
Description: <p>vertical net velocity</p>
http://lod.bco-dmo.org/id/dataset-parameter/719282.rdf
Name: vol_filt
Units: meters<sup>3</sup>
Description: <p>volume filtered</p>
http://lod.bco-dmo.org/id/dataset-parameter/719286.rdf
Name: net
Units: unknown
Description: <p>MOCNESS net number, (00-08)</p>
http://lod.bco-dmo.org/id/dataset-parameter/719287.rdf
Name: lat
Units: DD.D
Description: <p>latitude, negative = South</p>
http://lod.bco-dmo.org/id/dataset-parameter/719288.rdf
Name: lon
Units: DDD.D
Description: <p>longitude, negative = West</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
17286381
https://datadocs.bco-dmo.org/file/QAAXlnzS7pM63/ctd_mocness.csv
ctd_mocness.csv
Primary data file for dataset ID 719221
download
https://osprey.bco-dmo.org/dataset/719221/data/download
download
onLine
dataset
<p>The MOCNESS is based on the Tucker Trawl principle (Tucker, 1951). The particular MOCNESS system from which these CTD data came is one of two net systems. The MOCNESS-1 has nine rectangular nets (1m x 1.4 m) which are opened and closed sequentially by commands through conducting cable from the surface (Wiebe et al., 1976). The MOCNESS-10 (with 10 m2 nets)carries 6 nets of 3.0-mm circular mesh. In both systems, 'the underwater unit sends a data frame, comprised of temperature, depth, conductivity, net-frame angle, flow count, time, number of open net, and net opening/closing, to the deck unit in a compressed hexadecimal format every 2 seconds and from the deck unit to a microcomputer every 4 seconds... Temperature (to approximately 0.01 deg C) and conductivity are measured with SEABIRD sensors. Normally, a modified T.S.K.-flowmeter is used... Both the temperature and conductivity sensors and the flow meter are mounted on top of the frame so that they face horizontally when the frame is at a towing angle of 45deg... Calculations of salinity (to approximately 0.01 o/oo S), potential temperature (theta), potential density (sigma), the oblique and vertical velocities of the net, and the approximate volume filtered by each net are made after each string of data has been received by the computer.' (Wiebe et al., 1985)</p>
Specified by the Principal Investigator(s)
<p>It should be noted that due to Antarctic cold, the first few minutes of data are often of questionable value as they are extremely variable and have a high frequency of '50.000' (indicating 'bad values') in the temp, theta and sal fields. Once the sensors encounter deeper, warmer water, they start recording good values.</p>
<p>For additional information, contact the <a href="/jg/serv/globec/soglobec/inventory.html0?project,name_prin"> chief scientist</a> for the cruise.</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
Conductivity, Temperature, Depth
Conductivity, Temperature, Depth
PI Supplied Instrument Name: Conductivity, Temperature, Depth Instrument Name: CTD - profiler Instrument Short Name: Instrument Description: The Conductivity, Temperature, Depth (CTD) unit is an integrated instrument package designed to measure the conductivity, temperature, and pressure (depth) of the water column. The instrument is lowered via cable through the water column. It permits scientists to observe the physical properties in real-time via a conducting cable, which is typically connected to a CTD to a deck unit and computer on a ship. The CTD is often configured with additional optional sensors including fluorometers, transmissometers and/or radiometers. It is often combined with a Rosette of water sampling bottles (e.g. Niskin, GO-FLO) for collecting discrete water samples during the cast.
This term applies to profiling CTDs. For fixed CTDs, see https://www.bco-dmo.org/instrument/869934. Community Standard Description: http://vocab.nerc.ac.uk/collection/L05/current/130/
CTD MOCNESS
CTD MOCNESS
PI Supplied Instrument Name: CTD MOCNESS Instrument Name: CTD MOCNESS Instrument Short Name:CTD MOCNESS Instrument Description: The CTD part of the MOCNESS includes 1) a pressure (depth) sensor which is a thermally isolated titanium strain gauge with a standard range of 0-5000 decibars full scale, 2) A Sea Bird temperature sensor whose frequency output is measured and sent to the surface for logging and conversion to temperature by the software in the MOCNESS computer (The system allows better than 1 milli-degree resolution at 10 Hz sampling rate), and 3) A Sea Bird conductivity sensor whose output frequency is measured and sent to the surface for logging and conversion to conductivity by the software in the computer (The system allows better than 1 micro mho/cm at 10 Hz sampling rate). The data rate depends on the speed of the computer and the quality of the cable. With a good cable, the system can operate at 2400 baud, sampling all variables at 2 times per second. One sample every 4 seconds is the default, although the hardware can operate much faster. (From The MOCNESS Manual) Community Standard Description: http://vocab.nerc.ac.uk/collection/L05/current/131/
Cruise: NBP1002
NBP1002
Community Standard Description
International Council for the Exploration of the Sea
RVIB Nathaniel B. Palmer
vessel
NBP1002
Dr Joseph J. Torres
University of South Florida
http://dmoserv3.bco-dmo.org/data_docs/Antarctic_micronek/NBP10-02SitRepWhole.docx
Report describing NBP1002
Community Standard Description
International Council for the Exploration of the Sea
RVIB Nathaniel B. Palmer
vessel