http://lod.bco-dmo.org/id/dataset/827116
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
2020-10-20
ISO 19115-2 Geographic Information - Metadata - Part 2: Extensions for Imagery and Gridded Data
ISO 19115-2:2009(E)
Processed eddy covariance measurements from three lander deployments during R/V Oceanus cruises OC1802B and OC1901A along the Oregon shelf in 2018 and 2019.
2020-10-30
publication
2020-10-30
revision
Marine Biological Laboratory/Woods Hole Oceanographic Institution Library (MBLWHOI DLA)
2020-11-02
publication
https://doi.org/10.26008/1912/bco-dmo.827116.1
Clare E. Reimers
Oregon State 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: Reimers, C. E. (2020) Processed eddy covariance measurements from three lander deployments during R/V Oceanus cruises OC1802B and OC1901A along the Oregon shelf in 2018 and 2019. Biological and Chemical Oceanography Data Management Office (BCO-DMO). (Version 1) Version Date 2020-10-30 [if applicable, indicate subset used]. doi:10.26008/1912/bco-dmo.827116.1 [access date]
Dataset Description: <p>This dataset is comprised of individual files of eddy covariance time series data identified by the cruise id and an event number corresponding to the lander deployment.&nbsp; Eddy covariance fluxes and other parameters derived from these data are presented in a manuscript submitted to JGR-Oceans (Reimers and Fogaren).<br />
<br />
This dataset will be updated in the future to include additional processed eddy covariance measurements from additional cruises. The future version of this dataset will combine data from&nbsp;ten repeat R/V Oceanus cruises on the central Oregon shelf that spanned December 2017 through July 2019.</p> Methods and Sampling: <p>All data acquired with sensors mounted on a bottom lander ~30 cm above the seafloor unless noted otherwise.<br />
<br />
Problems/Issues:<br />
The temperature data were collected at lower frequencies and in the OC1901 Ev51 case processed with a 15 min moving average to interpolate to 8 Hz.</p>
<p>Instrument summary:</p>
<p>Nortek Vector ADV (yielded u, v, w, P, BSI).</p>
<p>Pyroscience fiber-optic oxygen sensors (OXB430) (yielded O2). The fiber-optic sensors were activated through PyroScience FireStingO2-Subport modules enclosed in Delrin housings with 12V to 5V power converter circuits produced and integrated by Rockland Scientific (Victoria, BC, Canada).</p>
<p>&nbsp;A new fiber-optic sensor was installed for each EC experiment, and it was calibrated in seawater solutions at 0 and 100% air saturation using FirestingO2 software, before and after each deployment. When processing EC data records the specific Firesting “pre” and “post” calibration parameters were applied with time-series inputs of temperature, salinity and pressure to convert the sensor measurements to two parallel O2 time-series in units of mmol L-1.&nbsp; Because it was observed that the fiber-optic sensor calibrations shifted gradually over time, independent reference measurements (from OOI data products or ship-based casts) were used to derive corrected fiber-optic time-series based on the fractions of pre- and post-calibration series needed to align with the reference measurements.&nbsp; For each deployment, four reference points were assigned, with calibration proportions extrapolated in between each reference point.&nbsp; Not surprisingly, these fractions shifted from mostly dependent on the “pre” calibration to dominantly the “post” calibration over the course of each deployment. Adjustments in mean concentration were generally about 10%.</p>
<p>Temperature records were extracted from the neighboring OOI Benthic Experimental Package CTD when at the 80 m station. Temperature records were measured with a recording CTD (SBE 37) during deployments at 30 m.</p>
Funding provided by NSF Division of Ocean Sciences (NSF OCE) Award Number: OCE-1634319 Award URL: https://www.nsf.gov/awardsearch/show-award?AWD_ID=1634319
onGoing
Clare E. Reimers
Oregon State University
541-737-2426
Weniger Hall 563 103 SW Memorial Place
Corvallis
OR
97331
USA
creimers@coas.oregonstate.edu
pointOfContact
asNeeded
Dataset Version: 1
Unknown
matlab_DateNumber
u
v
w
O2
P
temp
BSI
cruise_id
event
lat
lon
ISO_DateTime_PT
ISO_DateTime_UTC
Nortek Vector ADV
Pyroscience fiber-optic oxygen sensors (OXB430)
theme
None, User defined
Date and time
horizontal velocity towed
vertical velocity towed
dissolved Oxygen
water pressure
water temperature at measurement depth
Acoustic backscatter in the water column
Cruise identfier
event
latitude
longitude
ISO_DateTime_Local
ISO_DateTime_UTC
featureType
BCO-DMO Standard Parameters
Acoustic Doppler Velocimeter
no_bcodmo_term
Oxygen Sensor
Water Temperature Sensor
instrument
BCO-DMO Standard Instruments
OC1802B
OC1901A
service
Deployment Activity
Oregon Shelf
Oregon shelf
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.
Benthic Biogeochemical Exchange Dynamics on the Oregon Shelf
https://osprey.bco-dmo.org/project/753224
Benthic Biogeochemical Exchange Dynamics on the Oregon Shelf
<p><em>NSF Award Abstract:</em><br />
The longstanding theory regarding the formation of low oxygen zones in coastal shelf regions at the eastern boundaries of the oceans has pointed to the upwelling of oxygen-depleted waters from off of the shelf. In other words, dense water from beyond the shelf break that is depleted in dissolved oxygen is drawn along the seafloor upwards onto the shelf, mixing with the oxygenated water there, and creating low oxygen (hypoxic) zones. This is a paradigm that the researcher in this project seeks to shift by analyzing the added effects of respiration in shelf sediments. The investigator hypothesizes that changes in the biological activity of sediments due to seasonal changes in organic matter input from overlying waters are a major factor in the changes in dissolved oxygen content of deep shelf water, perhaps being the leading variable in the creation of hypoxic zones. Though the field analysis will be confined to the Oregon margin, there is a great deal of applicability for this research in other coastal regions where hypoxic zones form. In addition to the potential for unraveling complex local feedbacks between physical and biogeochemical processes, the researcher plans to work with a small business called Analytical Instrument Systems to build a new oxygen sensor, called a rotating disc microelectrode (RDME), that does not intrude on the environment it is testing and that can be deployed for much longer periods of time than currently popular sensors, micro-optodes. Her RDME will be deployed with micro-optodes for comparison and to validate the necessity for the RDME in the study of coastal ecosystems. This project will provide a unique experience for a postdoctoral researcher as well as a graduate and three undergraduate students. A public database will be created which will greatly help with accessibility and archiving of data for anyone who is interested in similar research. The database will be connected with a variety of other ocean observing data products, which will allow the research community and the public to make connections outside of this particular field of study. This investigator has a strong track record of including Research Experiences for Undergraduates (REU) students in her research, and she will continue to do so in this project.</p>
<p>The researcher aims to challenge the paradigm that hypoxic zones on the Oregon shelf are created by upwelling of offshelf oxygen-depleted water and that most of the local primary productivity is exported off the shelf during downwelling periods. Preliminary data suggests the possibility that seasonal benthic respiration may be a major factor in hypoxic water formation on the shelf. With the use of eddy covariance measurements, sediment core incubations, and near seabed particulate organic matter (POM) collections, the biogeochemical fluxes of the Oregon margin will be characterized for every season. This work is ambitious on its own, but the investigator also plans to incorporate the development of a new oxygen sensor called a rotating disc microelectrode (RDME) that will be compared to currently popular micro-optodes when making eddy covariance measurements. The RDME will be small enough as not to interfere with the physical properties being measured in situ; it will be insensitive to flow and deployable for longer periods of time. Not only does this project contain the possibility of completely overturning the current best theory of hypoxic zone formation on shelf margins, but the use of eddy covariance is new to the study of dynamic coastal ecosystems and will yield great insights into the biogeochemical processes of shelf benthos.</p>
<p>This project is affiliated with the Coastal Endurance Array of the Ocean Observatories Initiative (OOI): <a href="https://www.bco-dmo.org/program/661079" target="_blank">https://www.bco-dmo.org/program/661079</a></p>
BBEDOS
largerWorkCitation
project
eng; USA
oceans
Oregon Shelf; Oregon shelf
-124.3085
-124.0998
44.6418
44.6519
2018-02-26
2019-01-15
Oregon Shelf 44.6N 124 W
0
BCO-DMO catalogue of parameters from Processed eddy covariance measurements from three lander deployments during R/V Oceanus cruises OC1802B and OC1901A along the Oregon shelf in 2018 and 2019.
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/827285.rdf
Name: matlab_DateNumber
Units: unitless
Description: <p>Date/Time of measurement in local time (U.S. Pacific); resolution 8 Hz. Matlab DateNumber. Numerical number representing calendar days (e.g., January 1, 2019 12:00PM = 737426.500000000)</p>
http://lod.bco-dmo.org/id/dataset-parameter/827286.rdf
Name: u
Units: cm s-1
Description: <p>Horizontal velocity in direction of the X probe of ADV</p>
http://lod.bco-dmo.org/id/dataset-parameter/827287.rdf
Name: v
Units: cm s-1
Description: <p>Horizontal velocity in Y direction</p>
http://lod.bco-dmo.org/id/dataset-parameter/827288.rdf
Name: w
Units: cm s-1
Description: <p>Vertical velocity in Z direction</p>
http://lod.bco-dmo.org/id/dataset-parameter/827289.rdf
Name: O2
Units: micromoles per L (umol L-1)
Description: <p>Oxygen concentration</p>
http://lod.bco-dmo.org/id/dataset-parameter/827290.rdf
Name: P
Units: m
Description: <p>Pressure</p>
http://lod.bco-dmo.org/id/dataset-parameter/827291.rdf
Name: temp
Units: degrees Celsius (C)
Description: <p>Temperature</p>
http://lod.bco-dmo.org/id/dataset-parameter/827292.rdf
Name: BSI
Units: unitless
Description: <p>Backscatter Intensity</p>
http://lod.bco-dmo.org/id/dataset-parameter/827490.rdf
Name: cruise_id
Units: unitless
Description: <p>Cruise identifier</p>
http://lod.bco-dmo.org/id/dataset-parameter/827491.rdf
Name: event
Units: unitless
Description: <p>Event name</p>
http://lod.bco-dmo.org/id/dataset-parameter/827492.rdf
Name: lat
Units: decimal degrees
Description: <p>Site latitude</p>
http://lod.bco-dmo.org/id/dataset-parameter/827493.rdf
Name: lon
Units: decimal degrees
Description: <p>Site longitude</p>
http://lod.bco-dmo.org/id/dataset-parameter/827494.rdf
Name: ISO_DateTime_PT
Units: unitless
Description: <p>Date and time (local Pacific Time) in ISO 8601 format YYYY-MM-DDThh:mm:ss.SSS.</p>
http://lod.bco-dmo.org/id/dataset-parameter/827495.rdf
Name: ISO_DateTime_UTC
Units: unitless
Description: <p>Date and time (UTC) in ISO 8601 format YYYY-MM-DDThh:mm:ss.SSSZ.</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
303609074
https://darchive.mblwhoilibrary.org/bitstream/1912/26361/1/dataset-827116_oregon-shelf-eddy-covariance-data__v1.tsv
download
https://doi.org/10.26008/1912/bco-dmo.827116.1
download
onLine
dataset
<p>All data acquired with sensors mounted on a bottom lander ~30 cm above the seafloor unless noted otherwise.<br />
<br />
Problems/Issues:<br />
The temperature data were collected at lower frequencies and in the OC1901 Ev51 case processed with a 15 min moving average to interpolate to 8 Hz.</p>
<p>Instrument summary:</p>
<p>Nortek Vector ADV (yielded u, v, w, P, BSI).</p>
<p>Pyroscience fiber-optic oxygen sensors (OXB430) (yielded O2). The fiber-optic sensors were activated through PyroScience FireStingO2-Subport modules enclosed in Delrin housings with 12V to 5V power converter circuits produced and integrated by Rockland Scientific (Victoria, BC, Canada).</p>
<p>&nbsp;A new fiber-optic sensor was installed for each EC experiment, and it was calibrated in seawater solutions at 0 and 100% air saturation using FirestingO2 software, before and after each deployment. When processing EC data records the specific Firesting “pre” and “post” calibration parameters were applied with time-series inputs of temperature, salinity and pressure to convert the sensor measurements to two parallel O2 time-series in units of mmol L-1.&nbsp; Because it was observed that the fiber-optic sensor calibrations shifted gradually over time, independent reference measurements (from OOI data products or ship-based casts) were used to derive corrected fiber-optic time-series based on the fractions of pre- and post-calibration series needed to align with the reference measurements.&nbsp; For each deployment, four reference points were assigned, with calibration proportions extrapolated in between each reference point.&nbsp; Not surprisingly, these fractions shifted from mostly dependent on the “pre” calibration to dominantly the “post” calibration over the course of each deployment. Adjustments in mean concentration were generally about 10%.</p>
<p>Temperature records were extracted from the neighboring OOI Benthic Experimental Package CTD when at the 80 m station. Temperature records were measured with a recording CTD (SBE 37) during deployments at 30 m.</p>
Specified by the Principal Investigator(s)
<p>In most cases temperature data were collected at lower frequencies and processed with a moving average to interpolate to 8 Hz.<br />
<br />
Velocity and oxygen time-series were filtered to remove spikes (extreme data outliers) using a phase-space method adapted from <em>Goring and Nikora</em> [2002] whereby spikes are replaced with points based on a spline fit to adjacent data. These “cleaned” time series, together with coincident pressure measurements (P) made by the ADV were then reduced from 64 to 8 Hz by computing sequential eight-point averages.&nbsp;&nbsp;<br />
<br />
BCO-DMO Data Manager Processing Notes (Data version 1):<br />
* Combined submitted files into one data table adding columns for cruise_id and event from information in the file names.<br />
* added site latitude and longitude for each event in the dataset(information submitted by email).<br />
* Added ISO_DateTime_PT and&nbsp;&nbsp;ISO_DateTime_UTC in ISO 8601 format using the&nbsp;matlab DateNumber provided.&nbsp; Verified by checking the conversion in MATLAB using datestr().&nbsp;<br />
* rounded decimals to five decimal places after confirming the precision with the data submitter.</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
Nortek Vector ADV
Nortek Vector ADV
PI Supplied Instrument Name: Nortek Vector ADV PI Supplied Instrument Description:Nortek Vector ADV (yielded u, v, w, P, BSI). Instrument Name: Acoustic Doppler Velocimeter Instrument Short Name:ADV Instrument Description: ADV is the acronym for acoustic doppler velocimeter. The ADV is a remote-sensing, three-dimensional velocity sensor. Its operation is based on the Doppler shift effect. The sensor can be deployed either as a moored instrument or attached to a still structure near the seabed.
Reference:
G. Voulgaris and J. H. Trowbridge, 1998. Evaluation of the Acoustic Doppler Velocimeter (ADV) for Turbulence Measurements. J. Atmos. Oceanic Technol., 15, 272–289. doi: http://dx.doi.org/10.1175/1520-0426(1998)0152.0.CO;2 Community Standard Description: http://vocab.nerc.ac.uk/collection/L05/current/384/
PI Supplied Instrument Name: PI Supplied Instrument Description:A new fiber-optic sensor was installed for each EC experiment, and it was calibrated in seawater solutions at 0 and 100% air saturation using FirestingO2 software, before and after each deployment. When processing EC data records the specific Firesting “pre” and “post” calibration parameters were applied with time-series inputs of temperature, salinity and pressure to convert the sensor measurements to two parallel O2 time-series in units of mmol L-1. Because it was observed that the fiber-optic sensor calibrations shifted gradually over time, independent reference measurements (from OOI data products or ship-based casts) were used to derive corrected fiber-optic time-series based on the fractions of pre- and post- calibration series needed to align with the reference measurements. For each deployment, four reference points were assigned, with calibration proportions extrapolated in between each reference point. Not surprisingly, these fractions shifted from mostly dependent on the “pre” calibration to dominantly the “post” calibration over the course of each deployment. Adjustments in mean concentration were generally about 10%. Instrument Name: no_bcodmo_term Instrument Short Name: Instrument Description: No relevant match in BCO-DMO instrument vocabulary. Community Standard Description: http://vocab.nerc.ac.uk/collection/L05/current/999/
Pyroscience fiber-optic oxygen sensors (OXB430)
Pyroscience fiber-optic oxygen sensors (OXB430)
PI Supplied Instrument Name: Pyroscience fiber-optic oxygen sensors (OXB430) PI Supplied Instrument Description:Pyroscience fiber-optic oxygen sensors (OXB430) (yielded O2).The fiber-optic sensors were activated through PyroScience FireStingO2-Subport modules enclosed in Delrin housings with 12V to 5V power converter circuits produced and integrated by Rockland Scientific (Victoria, BC, Canada). Instrument Name: Oxygen Sensor Instrument Short Name:Dissolved Oxygen Sensor Instrument Description: An electronic device that measures the proportion of oxygen (O2) in the gas or liquid being analyzed
PI Supplied Instrument Name: PI Supplied Instrument Description:Temperature records were extracted from the neighboring OOI Benthic Experimental Package CTD when at the 80 m station. Temperature records were measured with a recording CTD (SBE 37) during deployments at 30 m. Instrument Name: Water Temperature Sensor Instrument Short Name:Water Temp Sensor Instrument Description: General term for an instrument that measures the temperature of the water with which it is in contact (thermometer). Community Standard Description: http://vocab.nerc.ac.uk/collection/L05/current/134/
Cruise: OC1802B
OC1802B
R/V Oceanus
Community Standard Description
International Council for the Exploration of the Sea
R/V Oceanus
vessel
OC1802B
Clare E. Reimers
Oregon State University
Cruise: OC1901A
OC1901A
R/V Oceanus
Community Standard Description
International Council for the Exploration of the Sea
R/V Oceanus
vessel
OC1901A
Clare E. Reimers
Oregon State University
R/V Oceanus
Community Standard Description
International Council for the Exploration of the Sea
R/V Oceanus
vessel