http://lod.bco-dmo.org/id/dataset/965718
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
2025-06-18
ISO 19115-2 Geographic Information - Metadata - Part 2: Extensions for Imagery and Gridded Data
ISO 19115-2:2009(E)
Benthic oxygen fluxes and associated environmental data collected in the Florida Keys from 2016 to 2018
2025-06-26
publication
2025-06-26
revision
Marine Biological Laboratory/Woods Hole Oceanographic Institution Library (MBLWHOI DLA)
2025-06-26
publication
https://doi.org/10.26008/1912/bco-dmo.965718.1
Markus Huettel
Florida State University
principalInvestigator
Peter Berg
University of Virginia
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: Huettel, M., Merikhi, A., Berg, P. (2025) Benthic oxygen fluxes and associated environmental data collected in the Florida Keys from 2016 to 2018. Biological and Chemical Oceanography Data Management Office (BCO-DMO). (Version 1) Version Date 2025-06-26 [if applicable, indicate subset used]. doi:10.26008/1912/bco-dmo.965718.1 [access date]
Florida Keys benthic oxygen flux Dataset Description: Methods and Sampling: <p>A new aquatic eddy covariance instrument was deployed that reduces flux errors through parallel measurements with three oxygen sensors positioned around the flow measuring volume (Merikhi et al. 2021).</p>
<p>All data were recorded with the aquatic eddy covariance instrument and reference sensors (light, oxygen, temperature) carried by the instrument tripod. The instrument tripod was lowered from the Florida Institute of Oceanography (FIO) Florida Keys Marine laboratory research vessel "Diodon" into the water at the study site and then placed by SCUBA divers at the exact location indicated by the lat/long coordinates provided (24° 43.523' N, 80° 49.855' W). Each of the deployments lasted one day; start and end times are provided in the dataset. After completion of the measuring period, the instrument was recovered by divers and returned to the FIO Florida Keys Marine laboratory for data download and sensor replacement.</p>
Funding provided by NSF Division of Ocean Sciences (NSF OCE) Award Number: OCE-1334117 Award URL: https://www.nsf.gov/awardsearch/show-award?AWD_ID=1334117
Funding provided by NSF Division of Ocean Sciences (NSF OCE) Award Number: OCE-1334848 Award URL: https://www.nsf.gov/awardsearch/show-award?AWD_ID=1334848
Funding provided by NSF Division of Ocean Sciences (NSF OCE) Award Number: OCE-1851290 Award URL: https://www.nsf.gov/awardsearch/show-award?AWD_ID=1851290
Funding provided by NSF Division of Ocean Sciences (NSF OCE) Award Number: OCE-1851424 Award URL: https://www.nsf.gov/awardsearch/show-award?AWD_ID=1851424
completed
Markus Huettel
Florida State University
850-645-1394
Department of Earth, Ocean and Atmospheric Science
Tallahassee
FL
32306-4520
USA
mhuettel@fsu.edu
pointOfContact
Peter Berg
University of Virginia
434-924-1318
Department of Environmental Sciences
Charlottesville
VA
22904-4123
USA
pb8n@virginia.edu
pointOfContact
asNeeded
Dataset Version: 1
Unknown
Date
Time
ISO_DateTime_Local
Site_Latitude
Site_Longitude
Site_Depth
O2_Flux
O2_Flux_SD
PAR
Current_velocity
Significant_wave_height
T_Ref_1
T_Ref_2
O2_Ref_1
O2_Ref_2
aquatic eddy covariance instrument with three oxygen sensors
SCUBA
theme
None, User defined
date
time of day
ISO_DateTime_Local
latitude
longitude
depth
O2_flux_sediment
PAR
Vertical velocity of water current
wave_height
water temperature at measurement depth
dissolved Oxygen
featureType
BCO-DMO Standard Parameters
Oxygen Sensor
Self-Contained Underwater Breathing Apparatus
instrument
BCO-DMO Standard Instruments
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.
Collaborative Research: Robust optode-based eddy correlation systems for oxygen flux measurements in aquatic environments
https://osprey.bco-dmo.org/project/811914
Collaborative Research: Robust optode-based eddy correlation systems for oxygen flux measurements in aquatic environments
<p>NSF Award Abstract:</p>
<p>The PIs request funding to build and test robust eddy correlation instruments for unidirectional and oscillating flow environments based on sturdy fiber- and planar-optical sensors and novel signal-processing electronics. The new hardware will be supported by software development to correct potential flux underestimations caused by inadequate oxygen sensor response time and spatial offsets between oxygen and flow sensors. The fragility of the thin glass microelectrode used in aquatic eddy correlation instruments severely limits the use of this powerful technique for flux measurements in benthic environments. This problem represents the major bottleneck preventing the widespread use of this approach.</p>
<p>Broader Impacts:</p>
<p>The PIs have very strong records both in spreading the use of EC technology through the community and in graduate and undergraduate education. They outline clearly the ways in which they will continue their ongoing endeavors in both areas. In addition, the application of this technology to the geochemistry and ecology of shallow-water regions has broad implications for carbon cycling and ocean acidification studies, both of which have important societal ramifications. Better quantify oxygen fluxes in the aquatic environment is important for society. It can e.g. help predict when and if the health of an aquatic system is being weakened, and when e.g. hypoxia or anoxia is approaching. Anoxia leads to death of all higher life</p>
Robust optode-based eddy correlation systems
largerWorkCitation
project
Collaborative Research: Megaripples as biocatalytical filters
https://osprey.bco-dmo.org/project/895943
Collaborative Research: Megaripples as biocatalytical filters
<p><strong>NSF Award Abstract:</strong><br />
This project focuses on the role of large underwater sand formations, particularly at the mouths of estuaries, in the cycling of nutrients and organic materials. "Megaripples" are common features on marine sediments where bottom currents are rapid. In the northeastern Gulf of Mexico, these sand dune-like features are up to half a meter in height, with wavelengths reaching 20 meters. The investigators propose that megaripples act as large filter systems that rapidly convert dissolved and solid organic matter into inorganic carbon and nutrients, and thus influence the biological productivity of coastal waters. They propose to use a one-kilometer long megaripple field in the inlet of Chotawhatchee Bay, in the northeastern Gulf of Mexico, as a natural laboratory for studying these processes. In addition, they will conduct laboratory experiments to investigate the filter processes at a smaller scale. By producing data on the functioning of megaripples, the project addresses a knowledge gap that has implications on our understanding of the cycles of matter in coastal waters. The project offers opportunities for both graduate and undergraduate students in learning state-of-the-art techniques. The students will gain experience in working on high frequency data acquisition and analysis of 'big data'. To enhance outreach, the researchers will develop and teach two courses on Permeable Sediment Biogeochemistry and Aquatic Eddy Covariance Studies for the Saturday at the Sea program offered by Florida State University. Results will be disseminated via scientific journals, conference presentations and public lectures, and directly to the Apalachicola-National Estuarine Research Reserve (NERR), which will make the results available to the other 28 NERR sites.</p>
<p>The two main project objectives are: 1) demonstrate the general function of megaripples as biocatalytical filters, and 2) demonstrate that common inlet megaripples contribute to nutrient retention in coastal bays. A 1 km long megaripple field in the inlet of Chotawhatchee Bay (wavelengths: ~20 m, amplitudes: 20 to 40 cm) in the northeastern Gulf of Mexico will be used as an in-situ laboratory. Measurements will characterize megaripple topography and the water flowing over them. Salinity and suspended particles are utilized as natural tracers to quantify solute and particle entrainment into the megaripples. This project will deploy non-invasive aquatic eddy covariance instruments equipped with newly developed robust sensors to quantify sedimentary remineralization in the flushed megaripple bed. This technique integrates the benthic oxygen flux over a large section of the megaripple field, while including the natural dynamics of currents and light. Real-time water column measurements with a boat-mounted flow-through analyzer permit rapid quantification of large horizontal gradients of key water column parameters. The in-situ measurements will be combined with laboratory column reactor experiments that quantify nutrient re-mobilization through organic carbon mineralization in flushed megaripple sand. The megaripple field in the inlet of Chotawhatchee Bay is easily accessible from shore and by small boat, expediting instrument deployments and in-situ measurements while reducing project costs. Synthesis of all data will produce a conceptual and quantitative understanding of megaripples as natural biocatalytical filters. Because transport and reaction in megaripples are governed by basic physical and biogeochemical processes, these results will reveal information on the general biogeochemical functioning of megaripples that so far is not available.</p>
<p>This award reflects NSF's statutory mission and has been deemed worthy of support through evaluation using the Foundation's intellectual merit and broader impacts review criteria.</p>
Megaripples
largerWorkCitation
project
eng; USA
oceans
-80.830917
-80.830917
24.725383
24.725383
2016-12-01
2018-04-20
From projects that focused on the following 2 locations: 1. Sand flat at ~10 m water depth in Florida Keys, 9 km south of Long Key (24° 43.52'N, 80° 49.85'W) 2. Northern Gulf of Mexico
0
BCO-DMO catalogue of parameters from Benthic oxygen fluxes and associated environmental data collected in the Florida Keys from 2016 to 2018
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/966428.rdf
Name: Date
Units: unitless
Description: <p>Date of sample collection</p>
http://lod.bco-dmo.org/id/dataset-parameter/966429.rdf
Name: Time
Units: unitless
Description: <p>Time of sample collection</p>
http://lod.bco-dmo.org/id/dataset-parameter/966430.rdf
Name: ISO_DateTime_Local
Units: unitless
Description: <p>Date and time of sample collection in ISO 8601 format in Eastern Standard Time (EST)</p>
http://lod.bco-dmo.org/id/dataset-parameter/966431.rdf
Name: Site_Latitude
Units: decimal degrees
Description: <p>Latitude of collection site</p>
http://lod.bco-dmo.org/id/dataset-parameter/966432.rdf
Name: Site_Longitude
Units: decimal degrees
Description: <p>Longitude of collection site</p>
http://lod.bco-dmo.org/id/dataset-parameter/966433.rdf
Name: Site_Depth
Units: meters (m)
Description: <p>Depth of sample collection</p>
http://lod.bco-dmo.org/id/dataset-parameter/966434.rdf
Name: O2_Flux
Units: millimoles per square meter per day (mmol m-2 d-1)
Description: <p>O2 flux</p>
http://lod.bco-dmo.org/id/dataset-parameter/966435.rdf
Name: O2_Flux_SD
Units: millimoles per square meter per day (mmol m-2 d-1)
Description: <p>Standard deviation of O2 flux</p>
http://lod.bco-dmo.org/id/dataset-parameter/966436.rdf
Name: PAR
Units: micromoles photons per square meter per second (umol photons m-2 s-1)
Description: <p>PAR</p>
http://lod.bco-dmo.org/id/dataset-parameter/966437.rdf
Name: Current_velocity
Units: meters per second (m s-1)
Description: <p>Current velocity</p>
http://lod.bco-dmo.org/id/dataset-parameter/966438.rdf
Name: Significant_wave_height
Units: meters (m)
Description: <p>Significant wave height</p>
http://lod.bco-dmo.org/id/dataset-parameter/966439.rdf
Name: T_Ref_1
Units: degrees Celsius
Description: <p>Reference temperature 1</p>
http://lod.bco-dmo.org/id/dataset-parameter/966440.rdf
Name: T_Ref_2
Units: degrees Celsius
Description: <p>Reference temperature 2</p>
http://lod.bco-dmo.org/id/dataset-parameter/966441.rdf
Name: O2_Ref_1
Units: micromoles per liter (umol l-1)
Description: <p>Reference O2 1</p>
http://lod.bco-dmo.org/id/dataset-parameter/966442.rdf
Name: O2_Ref_2
Units: micromoles per liter (umol l-1)
Description: <p>Reference O2 2</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
16523
https://darchive.mblwhoilibrary.org/server/api/core/bitstreams/ae59496b-4481-4e03-8f65-5cb24042834b/content
download
https://doi.org/10.26008/1912/bco-dmo.965718.1
download
onLine
dataset
<p>A new aquatic eddy covariance instrument was deployed that reduces flux errors through parallel measurements with three oxygen sensors positioned around the flow measuring volume (Merikhi et al. 2021).</p>
<p>All data were recorded with the aquatic eddy covariance instrument and reference sensors (light, oxygen, temperature) carried by the instrument tripod. The instrument tripod was lowered from the Florida Institute of Oceanography (FIO) Florida Keys Marine laboratory research vessel "Diodon" into the water at the study site and then placed by SCUBA divers at the exact location indicated by the lat/long coordinates provided (24° 43.523' N, 80° 49.855' W). Each of the deployments lasted one day; start and end times are provided in the dataset. After completion of the measuring period, the instrument was recovered by divers and returned to the FIO Florida Keys Marine laboratory for data download and sensor replacement.</p>
Specified by the Principal Investigator(s)
<p>After instrument retrieval, the signals of the three optodes were averaged for each measuring time point. The potential influence of oxygen concentration changes in the water column over time on the flux (i.e. storage effect) were negligible. Oxygen fluxes were calculated using the procedures explained in Merikhi et al. 2021. Specifically, flow and oxygen data were reduced to 8 hertz (Hz) data by averaging adjacent data points. In cases where the instrument was tilted relative to the main horizontal flow, the software rotated the flow velocity field for each 15-minute measuring interval such that mean transverse and vertical velocities became zero. Within each 15-minute interval, the mean vertical velocity and mean oxygen concentration then were calculated as least-square linear fits to the 8 Hz data. Subtraction of these means from each data point within the measuring interval produced the fluctuating concentration O₂' and fluctuating vertical velocity Vz' values away from their respective means that were used in equation 1 (Merikhi et al. 2021). Mean fluxes of four 15-minute periods were averaged to produce hourly fluxes expressed in units of millimoles per square meter per hour (mmol m⁻² h⁻¹). Further details of the data processing are provided in Merikhi et al. 2021.</p>
Specified by the Principal Investigator(s)
- Imported original file "250421 Data upload.xlsx" into the BCO-DMO system.
- Added columns for site latitude, longitude, and depth.
- Renamed fields to comply with BCO-DMO naming conventions.
- Converted Date field to YYYY-MM-DD format.
- Added column for date-time in ISO8601 format.
- Saved the final file as "965718_v1_fl_keys_benthic_o2_flux.csv".
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
aquatic eddy covariance instrument with three oxygen sensors
aquatic eddy covariance instrument with three oxygen sensors
PI Supplied Instrument Name: aquatic eddy covariance instrument with three oxygen sensors PI Supplied Instrument Description:A new aquatic eddy covariance instrument was deployed that reduces flux errors through parallel measurements with three oxygen sensors positioned around the flow measuring volume (Merikhi et al. 2021) . 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
SCUBA
SCUBA
PI Supplied Instrument Name: SCUBA Instrument Name: Self-Contained Underwater Breathing Apparatus Instrument Short Name:SCUBA Instrument Description: The self-contained underwater breathing apparatus or scuba diving system is the result of technological developments and innovations that began almost 300 years ago. Scuba diving is the most extensively used system for breathing underwater by recreational divers throughout the world and in various forms is also widely used to perform underwater work for military, scientific, and commercial purposes.
Reference: https://oceanexplorer.noaa.gov/technology/technical/technical.html