http://lod.bco-dmo.org/id/dataset/544448
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
2015-01-07
ISO 19115-2 Geographic Information - Metadata - Part 2: Extensions for Imagery and Gridded Data
ISO 19115-2:2009(E)
ADCP data from the South Atlantic Bight (SAB) continental shelf off Long Bay (Mooring #1) at 30 meters collected from January to April in 2012 (Long Bay Wintertime Bloom project)
2014-12-18
publication
2014-12-18
revision
Marine Biological Laboratory/Woods Hole Oceanographic Institution Library (MBLWHOI DLA)
2023-10-09
publication
https://doi.org/10.26008/1912/bco-dmo.544448.1
James Nelson
Skidaway Institute of Oceanography
principalInvestigator
Catherine Edwards
Skidaway Institute of Oceanography
principalInvestigator
Harvey E. Seim
University of North Carolina at Chapel Hill
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: Nelson, J., Edwards, C., Seim, H. E. (2023) ADCP data from the South Atlantic Bight (SAB) continental shelf off Long Bay (Mooring #1) at 30 meters collected from January to April in 2012 (Long Bay Wintertime Bloom project). Biological and Chemical Oceanography Data Management Office (BCO-DMO). (Version 1) Version Date 2014-12-18 [if applicable, indicate subset used]. doi:10.26008/1912/bco-dmo.544448.1 [access date]
ADCP data from Long Bay Mooring #1, 30 meters, Jan-April 2012 Dataset Description: Methods and Sampling: <p>A Teledyne RDI 600 kHz Work Horse Acoustic Doppler Current Profiler (RDI ADCP) was mounted looking upward on a bottom frame at nominal depth of 30m.&nbsp;Sampling was set for every 300 seconds (5min).&nbsp; Depth resolution was set to 1 meter. &nbsp;</p>
<p>LB2 ADCP did not have a pressure sensor and LB3 ADCP pressure sensor malfunctioned.&nbsp; Pressure records from the collocated bottom-frame CTDs were used to form the surface mask in ADCP profile data.</p>
Funding provided by NSF Division of Ocean Sciences (NSF OCE) Award Number: OCE-1032285 Award URL: https://www.nsf.gov/awardsearch/show-award?AWD_ID=1032285
Funding provided by NSF Division of Ocean Sciences (NSF OCE) Award Number: OCE-1032276 Award URL: https://www.nsf.gov/awardsearch/show-award?AWD_ID=1032276
completed
James Nelson
Skidaway Institute of Oceanography
jim.nelson@skio.usg.edu
pointOfContact
Catherine Edwards
Skidaway Institute of Oceanography
(912) 598-2471
10 Ocean Science Circle
Savannah
GA
31411
USA
catherine.edwards@skio.uga.edu
pointOfContact
Harvey E. Seim
University of North Carolina at Chapel Hill
(919) 962-2083
3117G Venable Hall, CB#3300
Chapel Hill
NC
27599-3300
USA
hseim@email.unc.edu
pointOfContact
asNeeded
Dataset Version: 1
Unknown
deploy_id
lat
lon
year
month_utc
day_utc
date_utc
time_utc
yrday_utc
ISO_DateTime_UTC
pitch
roll
heading
depth
temperature
pressure
salinity
u#
v#
w#
ADCP
theme
None, User defined
deployment number
latitude
longitude
year
month_utc
day_utc
date_utc
time_utc
UTC day of year and decimal time
ISO_DateTime_UTC
No BCO-DMO term
heading
depth
water temperature at measurement depth
water pressure
salinity
Uranium
Vanadium
vertical velocity towed
featureType
BCO-DMO Standard Parameters
Acoustic Doppler Current Profiler
instrument
BCO-DMO Standard Instruments
LB_2012_LB1
service
Deployment Activity
South Atlantic Bight (SAB) continental shelf off Long Bay
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.
Mechanisms of nutrient input at the shelf margin supporting persistent winter phytoplankton blooms downstream of the Charleston Bump
http://nccoos.org/projects/long-bay-wintertime-blooms/
Mechanisms of nutrient input at the shelf margin supporting persistent winter phytoplankton blooms downstream of the Charleston Bump
<p><strong>NSF Project Title:</strong> Mechanisms of nutrient input at the shelf margin supporting persistent winter phytoplankton blooms downstream of the Charleston Bump</p>
<p>Sustained phytoplankton blooms along the outer South Atlantic Bight (SAB) continental shelf off Long Bay are observed in winter in multi-year satellite chlorophyll imagery. This section of the shelf lies north of the "Charleston Bump" (between 32.5-33.5°N), where the Gulf Stream is often strongly deflected offshore. Due to this offshore deflection, this is not an area where nutrient input to the shelf would be enhanced by upwelling associated with Gulf Stream frontal eddies, a major mechanism of nutrient input in other parts of the SAB shelf (Lee et al., 1991). Yet prior in situ observations suggest that there is recurring input of nutrients from the upper slope to the outer shelf off Long Bay from winter to early spring. This project will investigate a fundamental aspect of physical-biological coupling in the outer shelf to upper slope region. The PIs will test the hypotheses that: 1) the persistence of winter blooms on the outer shelf off Long Bay results from repeated episodes of nutrient input and mixing which maintains nutrient-sufficient conditions for extended periods; 2) several physical mechanisms are involved, including enhanced mixing energy from the internal tide along this section of the upper slope/shelf break; 3) the relatively high nutrient, intermittently turbulent environment will favor larger bloom-forming phytoplankton. The latter could have important implications for higher trophic levels, including early life history strategies of fish that spawn along the shelf margin off Long Bay in winter to early spring.</p>
<p>This project will combine several maturing observational technologies to address the following:</p>
<p>1. What is the frequency and magnitude on on-shelf transport of nitrate from the upper slope?<br />
2. What are the mechanisms of nutrient delivery from the upper slope to the outer continental shelf zone that are operating off Long Bay under the range of hydrographic and forcing conditions encountered in winter?<br />
3. What is the 3-D structure of outer shelf hydrography and associated winter bloom features and how do these evolve through multiple nutrient input/mixing events?<br />
4. What are the rates of nitrate utilization and primary production associated with the winter blooms?<br />
5. Does the winter regime consistently favor a bloom assemblage dominated by larger diatom forms?</p>
<p>Near-continuous cross-shelf and upper slope observations will be obtained with two autonomous gliders, time-series measurements on the outer shelf and slope from a set of moored instruments (including a moored profiling system at the shelf break), and repeated cross- and along-shelf ship surveys using a towed, undulating package. Ship station work will include measurements of primary production and on-board analyses of key functional characteristics of the phytoplankton assemblage (cell forms, abundance, size and bio-volume distributions) using a microfluidics/imaging system. In combination, these systems will provide a level of spatial and temporal resolution of physical, nutrient and biological fields that could not be achieved in earlier, station-based field studies and the basis for improved understanding of physical mechanisms of recurring nutrient input to the shelf, and how the nutrient, mixing, and circulation regime in winter structures the phytoplankton community. Coastal naturalists will be engaged through a seabird survey component of the field program that will augment existing information on pelagic seabirds in winter and define their association with oceanographic features on the central South Atlantic Bight shelf and slope.</p>
<p>This project will provide a deeper understanding of shelf/slope exchange processes and how these influence shelf ecosystems, generating information that will contribute to implementation of ecosystem-based management in the region.</p>
<p>References:<br />
Lee, T. N., J. A. Yoder, and L. P. Atkinson, 1991: Gulf Stream frontal eddy influence on productivity of the southeast U.S. continental shelf. J. Geophys. Res, 96, 22191-22205.<br />
</p>
Long Bay Wintertime Bloom
largerWorkCitation
project
eng; USA
oceans
South Atlantic Bight (SAB) continental shelf off Long Bay
-78.3334
-78.3334
33.1695
33.1695
2012-01-20
2012-04-04
outer South Atlantic Bight (SAB) continental shelf off Long Bay
0
BCO-DMO catalogue of parameters from ADCP data from the South Atlantic Bight (SAB) continental shelf off Long Bay (Mooring #1) at 30 meters collected from January to April in 2012 (Long Bay Wintertime Bloom 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/544458.rdf
Name: deploy_id
Units: unitless
Description: <p>mooring identification number</p>
http://lod.bco-dmo.org/id/dataset-parameter/544459.rdf
Name: lat
Units: decimal degrees
Description: <p>latitude of the sampling site; north is positive</p>
http://lod.bco-dmo.org/id/dataset-parameter/544460.rdf
Name: lon
Units: decimal degrees
Description: <p>longitude of the sampling site; west is negative</p>
http://lod.bco-dmo.org/id/dataset-parameter/544461.rdf
Name: year
Units: yyyy
Description: <p>year</p>
http://lod.bco-dmo.org/id/dataset-parameter/544462.rdf
Name: month_utc
Units: mm
Description: <p>UTC month</p>
http://lod.bco-dmo.org/id/dataset-parameter/544463.rdf
Name: day_utc
Units: dd
Description: <p>UTC day</p>
http://lod.bco-dmo.org/id/dataset-parameter/544464.rdf
Name: date_utc
Units: yyyy-mm-dd
Description: <p>UTC date</p>
http://lod.bco-dmo.org/id/dataset-parameter/544465.rdf
Name: time_utc
Units: HH:MM:SS
Description: <p>UTC time</p>
http://lod.bco-dmo.org/id/dataset-parameter/544466.rdf
Name: yrday_utc
Units: yyy.fraction_of_day
Description: <p>UTC day and decimal time: 326.5 for the 326th day of the year or November 22 at 1200 hours (noon)</p>
http://lod.bco-dmo.org/id/dataset-parameter/544467.rdf
Name: ISO_DateTime_UTC
Units: yyyy-mm-ddTHH:MM:SS.00Z
Description: <p>Date/Time (UTC) ISO formatted</p>
http://lod.bco-dmo.org/id/dataset-parameter/544468.rdf
Name: pitch
Units: degrees
Description: <p>degree of fore and aft movement from the horizontal</p>
http://lod.bco-dmo.org/id/dataset-parameter/544469.rdf
Name: roll
Units: degrees
Description: <p>degree of side to side movement from the horizontal</p>
http://lod.bco-dmo.org/id/dataset-parameter/544470.rdf
Name: heading
Units: degrees
Description: <p>direction of movement; compass heading</p>
http://lod.bco-dmo.org/id/dataset-parameter/544471.rdf
Name: depth
Units: meters
Description: <p>depth</p>
http://lod.bco-dmo.org/id/dataset-parameter/544472.rdf
Name: temperature
Units: degrees Celsius
Description: <p>temperature</p>
http://lod.bco-dmo.org/id/dataset-parameter/544473.rdf
Name: pressure
Units: decibars
Description: <p>pressure</p>
http://lod.bco-dmo.org/id/dataset-parameter/544474.rdf
Name: salinity
Units: PSU
Description: <p>salinity</p>
http://lod.bco-dmo.org/id/dataset-parameter/544475.rdf
Name: u#
Units: meters/second
Description: <p>eastward component of water velocity relative to true north; '#' represents the depth range in meters of each profile depth cell above the ADCP</p>
http://lod.bco-dmo.org/id/dataset-parameter/544476.rdf
Name: v#
Units: meters/second
Description: <p>northward component of water velocity relative to true north; '#' represents the depth range in meters of each profile depth cell above the ADCP</p>
http://lod.bco-dmo.org/id/dataset-parameter/544477.rdf
Name: w#
Units: meters/second
Description: <p>vertical velocity; '#' represents the depth range in meters of each profile depth cell above the ADCP</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
13958700
https://darchive.mblwhoilibrary.org/server/api/core/bitstreams/df2f7f51-5e73-402f-8680-cc512cdb08a0/content
download
13958700
https://darchive.mblwhoilibrary.org/server/api/core/bitstreams/2790ea1f-7bc5-489e-a84a-f476fde8e438/content
download
https://doi.org/10.26008/1912/bco-dmo.544448.1
download
onLine
dataset
<p>A Teledyne RDI 600 kHz Work Horse Acoustic Doppler Current Profiler (RDI ADCP) was mounted looking upward on a bottom frame at nominal depth of 30m.&nbsp;Sampling was set for every 300 seconds (5min).&nbsp; Depth resolution was set to 1 meter. &nbsp;</p>
<p>LB2 ADCP did not have a pressure sensor and LB3 ADCP pressure sensor malfunctioned.&nbsp; Pressure records from the collocated bottom-frame CTDs were used to form the surface mask in ADCP profile data.</p>
Specified by the Principal Investigator(s)
<p>Data were read from ADCP binary format using Rich Pawlowicz’s MATLAB functions to read binary and processed RDI ADCP files. [1]</p>
<p>Quality control (QC) steps applied are based on Teledyne RDI recommendations [2] and QARTOD guidance [3]. Quality controlled ADCP data were flagged with Not-a-Number (NaN) (changed to nd by BCO-DMO) under the following conditions:</p>
<p>1. when bottom frame not at deployment depth (trimming beginning and end values)<br />
2. sensor health parameters (pitch, roll, heading, water temperature) not within tolerances<br />
3. quality and strength of returned signal not sufficient based on the following parameters:<br />
&nbsp; &nbsp;a.&nbsp;Echo Intensity<br />
&nbsp; &nbsp;b.&nbsp;Correlation Magnitude<br />
&nbsp; &nbsp;c.&nbsp;Error Velocity&nbsp;<br />
&nbsp; &nbsp;d.&nbsp;Percent Good&nbsp;<br />
4. surface masking based on beam angle and addition roll and/or pitch and surface location from water level determined from pressure sensor on ADCP or collocated on the bottom frame.</p>
<p>The ADCP configuration info and tolerances used in the QC processing for each ADCP (LB1, LB2, and LB3) are provided with each dataset. &nbsp;</p>
<p>As a final step, the horizontal velocity components were rotated to be relative to True North based on magnetic variation of the deployment location after verifying no internal application of magnetic variation was applied to data.</p>
<p>Further ADCP data processing information (<a href="http://dmoserv3.bco-dmo.org/data_docs/LongBay_Bloom/README_mooring_ADCP_mat_files.pdf" target="_blank">pdf</a>)</p>
<p><strong>References:</strong><br />
[1]&nbsp;Pawlowicz’s Matlab Stuff. Accessed&nbsp;December&nbsp;2014.<br />
[2] D.R. Symonds 2006<br />
[3] IOOS, 2013. Accessed December 17, 2014.</p>
<p>&nbsp;</p>
Specified by the Principal Investigator(s)
BCO-DMO Processing:
-extracted data from MatLab .mat file
-added conventional header with dataset name, PI name, version date, reference information
-renamed parameters to BCO-DMO standard
-added deployment_id, lat, lon
-added 'day_local', 'month_local', 'year', 'yrday_local', ISO_DateTime_UTC to served view
-changed NaN to nd
-reduced number of significant digits
- divided pressure value 1000
Specified by BCO-DMO Data Managers
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
ADCP
ADCP
PI Supplied Instrument Name: ADCP Instrument Name: Acoustic Doppler Current Profiler Instrument Short Name:ADCP Instrument Description: The ADCP measures water currents with sound, using a principle of sound waves called the Doppler effect. A sound wave has a higher frequency, or pitch, when it moves to you than when it moves away. You hear the Doppler effect in action when a car speeds past with a characteristic building of sound that fades when the car passes. The ADCP works by transmitting "pings" of sound at a constant frequency into the water. (The pings are so highly pitched that humans and even dolphins can't hear them.) As the sound waves travel, they ricochet off particles suspended in the moving water, and reflect back to the instrument. Due to the Doppler effect, sound waves bounced back from a particle moving away from the profiler have a slightly lowered frequency when they return. Particles moving toward the instrument send back higher frequency waves. The difference in frequency between the waves the profiler sends out and the waves it receives is called the Doppler shift. The instrument uses this shift to calculate how fast the particle and the water around it are moving. Sound waves that hit particles far from the profiler take longer to come back than waves that strike close by. By measuring the time it takes for the waves to bounce back and the Doppler shift, the profiler can measure current speed at many different depths with each series of pings. (More from WHOI instruments listing). Community Standard Description: http://vocab.nerc.ac.uk/collection/L05/current/115/
Deployment: LB_2012_LB1
LB_2012_LB1
LB1 Mooring
mooring
LB_2012_LB1
James Nelson
Skidaway Institute of Oceanography
LB1 Mooring
mooring