http://lod.bco-dmo.org/id/dataset/532643
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
2014-10-08
ISO 19115-2 Geographic Information - Metadata - Part 2: Extensions for Imagery and Gridded Data
ISO 19115-2:2009(E)
Data from GOVARS iRobot Seaglider AUV-SG-503 released off Ross Island near Cape Crozier, Southern Ross Sea; 2010-2011 (GOVARS project)
2014-10-08
publication
2014-10-08
revision
Marine Biological Laboratory/Woods Hole Oceanographic Institution Library (MBLWHOI DLA)
2021-02-08
publication
https://doi.org/10.26008/1912/bco-dmo.532643.1
Walker O. Smith
Virginia Institute of Marine Science
principalInvestigator
Marjorie A.M. Friedrichs
Virginia Institute of Marine Science
principalInvestigator
Karen J. Heywood
University of East Anglia
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: Smith, W. O., Friedrichs, M. A., Heywood, K. J. (2021) Data from GOVARS iRobot Seaglider AUV-SG-503 released off Ross Island near Cape Crozier, Southern Ross Sea; 2010-2011 (GOVARS project). Biological and Chemical Oceanography Data Management Office (BCO-DMO). (Version 1) Version Date 2014-10-08 [if applicable, indicate subset used]. doi:10.26008/1912/bco-dmo.532643.1 [access date]
GOVARS SG503 Dataset Description: <p><strong>These results were published in:</strong><br />
Kaufman et al. (2014): peer-reviewed paper describing the project and the physical-biological results.<br />
Smith et al. (2014): peer-reviewed paper describing the results in conjunction with other ongoing projects in the area.<br />
Quest et al. (2015): peer-reviewed paper describing the results of the oxygen dynamics.</p>
<p>All of the above have maps showing the study area and data.</p> Methods and Sampling: <p>Latitude and longitude (parameter names lat and lon) were measured at the surface and linearly interpolated when the glider was at depth. Parameter name GPS value id indicates measurements while glider was at the surface (value = 1) or interpolated while diving (value = 0). No interpolation or smoothing was performed on other data.</p>
<p>Temperature and salinity (parameter names temp and sal): Temperature and salinity data were calculated using pre deployment calibration coefficients. A first-order lag correction was applied to raw measurements of temperature and conductivity (due to temperature latency). For each dive, out of range measurements and spikes (3 interquartile ranges above or below the median in windows of 15 contiguous measurements) were flagged and replaced with NaNs, which were repopulated by linear interpolation. Data were smoothed with an 11-point median filter. Parameters potemp and sigma_0 were calculated from the smoothed temp and sal datasets.</p>
<p>Dissolved oxygen, O2 (parameter name O2_cal): Oxygen data from the Aanderaa optode were corrected for time lags in oxygen and temperature. The resulting oxygen has an error of ±2 µmol kg-1.</p>
<p>Particulate backscattering coefficients, bbp (parameter names bbp470, bbp700): Backscattering digital counts were converted to at 117° by subtracting factory-provided dark counts and β multiplying by factory calibration scale factors.</p>
<p>Particulate organic carbon (POC) derived from bbp(700) (parameter name POC_bbp): The regression to convert ship downcast bbp at 700 nm to POC is: POC (mg C m-3) = 19607*bbp700 + 17.621; R2 = 0.85, p &lt; 0.01. Because all backscatter sensors were cross calibrated with the ship CTD downcast, this regression was directly applied to glider bbp at 700 nm to compute glider POC.</p>
<p>Chlorophyll fluorescence (parameter names chl_raw): Chlorophyll fluorescence measured by glider ECOPuck BB2F was calibrated with discrete chlorophyll samples taken from calibration profiles. The regression was CHL = (FL -141)*0.00225 (R2 = 0.94, p &lt; 0.01).</p>
Funding provided by NSF Antarctic Sciences (NSF ANT) Award Number: ANT-0838980 Award URL: https://www.nsf.gov/awardsearch/show-award?AWD_ID=0838980
completed
Walker O. Smith
Virginia Institute of Marine Science
(804) 684-7709
P.O. Box 1346 Rt. 1208 Greate Rd.
Gloucester Point
VA
23062-1346
USA
wos@vims.edu
pointOfContact
Marjorie A.M. Friedrichs
Virginia Institute of Marine Science
(804) 684-7695
Andrews Hall 337 Virginia Institute of Marine Science College of William & Mary
Gloucester Pt.
VA
23062
USA
marjy@vims.edu
pointOfContact
Karen J. Heywood
University of East Anglia
+44 (0)1603 59 2555
School of Environmental Sciences Sciences 2.39 University of East Anglia Norwich Research Park
Norwich
NR4 7TJ
UK
K.Heywood@uea.ac.uk
pointOfContact
asNeeded
Dataset Version: 1
Unknown
dive_id
date
julian_day_yr0
lat
lon
GPS_id
depth
temp
potemp
sal
sigma_0
O2_cal
Aanderaa Oxygen Optodes
Druck PDCR 4020
Seaglider
Wet Labs ECO Puck BB2F-VMG
theme
None, User defined
dive_id
date
julian_day_yr0
latitude
longitude
GPS_id
depth
water temperature at measurement depth
potential temperature
salinity
sigma-theta
O2 calibrated
featureType
BCO-DMO Standard Parameters
Aanderaa Oxygen Optodes
Druck PDCR 4020 pressure sensor
Seaglider
Wet Labs ECO Puck BB2F-VMG
instrument
BCO-DMO Standard Instruments
AUV-SG-503
service
Deployment Activity
Glider was released into the Southern Ross Sea from Ross Island near Cape Crozier
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.
Seasonal Evolution of Chemical and Biological Variability in the Ross Sea
https://osprey.bco-dmo.org/project/529501
Seasonal Evolution of Chemical and Biological Variability in the Ross Sea
<p><em>Extracted from the NSF award abstract:</em></p>
<p>This award is funded under the American Recovery and Reinvestment Act of 2009 (Public Law 111-5).</p>
<p>The Ross Sea is a highly productive area within the Southern Ocean, but it experiences substantial variability in both physical (temperature, ice concentrations, salinity, winds, and current velocities) and biogeochemical (chlorophyll, productivity, micronutrients, higher trophic level standing stocks, gases, etc.) conditions. Understanding the temporal and spatial oceanographic variations in physical forcing is essential to understanding the ecological functioning within the Ross Sea. There are a number of models of the physical oceanography of the Ross Sea that characterize the observed circulation. Unfortunately, data on the appropriate time scales (daily, monthly, seasonal, and interannual) to completely evaluate those models are lacking. The proposed research is a demonstration project to characterize the physical and biological oceanography of the southern Ross Sea using newly developed Glider technology to sample the region continuously through the growing season, to collect temperature, salinity, fluorescence, oxygen and optical transmission data. These field data will be used to assist in evaluation of an eddy-resolving ROMS-based coupled circulation-biological model, and, along with satellite ocean color information, will be assimilated into an ecosystem model. Data assimilation techniques will reduce the model uncertainties of the circulation and food webs of the region. The intellectual merit of this effort arises from the combination of field-based investigations using a novel technology (one that is far more cost-effective than ship-based studies) with state-of-the-art biological-physical models and advanced data assimilation techniques. The research will provide new insights into the complex oceanographic phenomena of the Antarctic continental shelves and is a novel method of continuing the studies of the southern Ross Sea. Broader impacts of the proposed research include training of graduate and undergraduate students and partnership with several ongoing outreach programs dealing with scientific research in the Southern Ocean. At least 2 graduate students will be supported by this research, and it will be a critical component of a variety of outreach programs in Virginia, including a High School Marine Science Day, Boy and Girl Scout education, and middle school curriculum improvement. The investigators also will create a web site to foster immediate release of the data collected by the glider, and seek a linkage with schools at various levels (middle, high school and Universities) that potentially could incorporate the data into classroom activities</p>
<p><strong>Related files:</strong><br />
1. <a href="http://dmoserv3.whoi.edu/data_docs/GOVARS/Kaufman_etal_2014_DSR.pdf" target="_blank">Kaufman et al. (2014)</a>: peer-reviewed paper describing the project and the physical-biological results (kaufman et al. 2014 DSR.pdf)<br />
2. <a href="http://dmoserv3.whoi.edu/data_docs/GOVARS/Smith_etal_2014_oceanogr.pdf" target="_blank">Smith et al. (2014)</a>: peer-reviewed paper describing the results in conjunction with other ongoing projects in the area (smith et al. 2014 oceanogr.pdf)<br />
3. <a href="http://dmoserv3.whoi.edu/data_docs/GOVARS/queste_etal_2014_Ant_Sci.pdf" target="_blank">Quest et al. (2014)</a>: peer-reviewed paper (in press) describing the results of the oxygen dynamics (quest et al. 2014 ant sci.pdf)</p>
GOVARS
largerWorkCitation
project
eng; USA
oceans
Glider was released into the Southern Ross Sea from Ross Island near Cape Crozier
169.5168
179.9128
-77.4702
-76.0905
2010-11-29
2011-01-30
Southern Ross Sea, bounded by -77.436° and 169.517E°, and extending to -76.3403° and 180°
0
BCO-DMO catalogue of parameters from Data from GOVARS iRobot Seaglider AUV-SG-503 released off Ross Island near Cape Crozier, Southern Ross Sea; 2010-2011 (GOVARS 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/532645.rdf
Name: dive_id
Units: dimensionless
Description: <p>dive identification number</p>
http://lod.bco-dmo.org/id/dataset-parameter/532646.rdf
Name: date
Units: YYYYMMDD
Description: <p>date (UTC) start of sampling</p>
http://lod.bco-dmo.org/id/dataset-parameter/532647.rdf
Name: julian_day_yr0
Units: dimensionless
Description: <p>time when sample was taken in decimal days since Jan-0-0000</p>
http://lod.bco-dmo.org/id/dataset-parameter/532648.rdf
Name: lat
Units: decimal degrees
Description: <p>latitude (South is negative)</p>
http://lod.bco-dmo.org/id/dataset-parameter/532649.rdf
Name: lon
Units: decimal degrees
Description: <p>longitude (West is negative)</p>
http://lod.bco-dmo.org/id/dataset-parameter/532650.rdf
Name: GPS_id
Units: integer
Description: <p>GPS value id; measurement taken while on surface (value=1) or interpolated while diving (value=0)</p>
http://lod.bco-dmo.org/id/dataset-parameter/532651.rdf
Name: depth
Units: meters
Description: <p>depth at which sample was taken</p>
http://lod.bco-dmo.org/id/dataset-parameter/532652.rdf
Name: temp
Units: degrees Celsius
Description: <p>Temperature</p>
http://lod.bco-dmo.org/id/dataset-parameter/532653.rdf
Name: potemp
Units: degrees Celsius
Description: <p>Potential Temperature</p>
http://lod.bco-dmo.org/id/dataset-parameter/532654.rdf
Name: sal
Units: dimensionless
Description: <p>Salinity</p>
http://lod.bco-dmo.org/id/dataset-parameter/532655.rdf
Name: sigma_0
Units: kilograms/meter^3
Description: <p>potential density minus 1000</p>
http://lod.bco-dmo.org/id/dataset-parameter/532656.rdf
Name: O2_cal
Units: micromol/kilogram
Description: <p>dissolved oxygen concentration measured from Aanderaa Optode 3830 oxygen sensor;</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
27853860
https://darchive.mblwhoilibrary.org/bitstream/1912/26653/1/dataset-532643_govars-sg503__v1.tsv
download
https://doi.org/10.26008/1912/bco-dmo.532643.1
download
onLine
dataset
<p>Latitude and longitude (parameter names lat and lon) were measured at the surface and linearly interpolated when the glider was at depth. Parameter name GPS value id indicates measurements while glider was at the surface (value = 1) or interpolated while diving (value = 0). No interpolation or smoothing was performed on other data.</p>
<p>Temperature and salinity (parameter names temp and sal): Temperature and salinity data were calculated using pre deployment calibration coefficients. A first-order lag correction was applied to raw measurements of temperature and conductivity (due to temperature latency). For each dive, out of range measurements and spikes (3 interquartile ranges above or below the median in windows of 15 contiguous measurements) were flagged and replaced with NaNs, which were repopulated by linear interpolation. Data were smoothed with an 11-point median filter. Parameters potemp and sigma_0 were calculated from the smoothed temp and sal datasets.</p>
<p>Dissolved oxygen, O2 (parameter name O2_cal): Oxygen data from the Aanderaa optode were corrected for time lags in oxygen and temperature. The resulting oxygen has an error of ±2 µmol kg-1.</p>
<p>Particulate backscattering coefficients, bbp (parameter names bbp470, bbp700): Backscattering digital counts were converted to at 117° by subtracting factory-provided dark counts and β multiplying by factory calibration scale factors.</p>
<p>Particulate organic carbon (POC) derived from bbp(700) (parameter name POC_bbp): The regression to convert ship downcast bbp at 700 nm to POC is: POC (mg C m-3) = 19607*bbp700 + 17.621; R2 = 0.85, p &lt; 0.01. Because all backscatter sensors were cross calibrated with the ship CTD downcast, this regression was directly applied to glider bbp at 700 nm to compute glider POC.</p>
<p>Chlorophyll fluorescence (parameter names chl_raw): Chlorophyll fluorescence measured by glider ECOPuck BB2F was calibrated with discrete chlorophyll samples taken from calibration profiles. The regression was CHL = (FL -141)*0.00225 (R2 = 0.94, p &lt; 0.01).</p>
Specified by the Principal Investigator(s)
<p><strong>Data Processing:</strong> All data were analyzed for peaks and lost data, and if unexplained values were recorded, replaced by a smoothed average from +/- ten points above and below the spike. Sigma-T values are calculated using standard algorithms.</p>
<p><strong>BCO-DMO Processing Notes</strong><br />
&nbsp;- Generated from original file: "SG503.csv" contributed by Walker Smith</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
Aanderaa Oxygen Optodes
Aanderaa Oxygen Optodes
PI Supplied Instrument Name: Aanderaa Oxygen Optodes Instrument Name: Aanderaa Oxygen Optodes Instrument Short Name:AOO Instrument Description: Aanderaa Oxygen Optodes are instrument for monitoring oxygen in the environment. For instrument information see the Aanderaa Oxygen Optodes Product Brochure. Community Standard Description: http://vocab.nerc.ac.uk/collection/L05/current/351/
Druck PDCR 4020
Druck PDCR 4020
PI Supplied Instrument Name: Druck PDCR 4020 Instrument Name: Druck PDCR 4020 pressure sensor Instrument Short Name:Druck PDCR 4020 Instrument Description: The PDCR 4000 Series provides a complete range of mV output pressure transducers offering advanced levels of measurement accuracy stability and flexibility from a standard production device.
Seaglider
Seaglider
PI Supplied Instrument Name: Seaglider Instrument Name: Seaglider Instrument Short Name:Seaglider Instrument Description: The Seaglider is an autonomous underwater vehicle developed through a collaboration between The Applied Physics Laboratory -University of Washington and the University of Washington School of Oceanography. These small, free-swimming vehicles can gather conductivity-temperature-depth (CTD) data from the ocean for months at a time and transmit it to shore in near-real time via satellite data telemetry. Seagliders make oceanographic measurements traditionally collected by research vessels or moored instruments. They can survey along a transect, profile at a fixed location, and can be commanded to alter their sampling strategies throughout a mission.
Wet Labs ECO Puck BB2F-VMG
Wet Labs ECO Puck BB2F-VMG
PI Supplied Instrument Name: Wet Labs ECO Puck BB2F-VMG Instrument Name: Wet Labs ECO Puck BB2F-VMG Instrument Short Name:ECO Puck BB2F-VMG Instrument Description: The ECO BB measures scattering at 117 degrees, the angle determined as a minimum convergence point for variations in the volume scattering function (VSF) induced by suspended materials and water itself. As a result, the signal measured by this meter is less determined by the type and size of the materials in the water and is more directly correlated to the concentration of the materials. Conversely, the meter provides unparalleled accuracy for any single-angle measurement in determining the optical backscattering coefficient: an important parameter for remote sensing and in many in-water bio-optical applications.
Deployment: AUV-SG-503
AUV-SG-503
iRobot Seaglider
AUV
AUV-SG-503
Walker O. Smith
Virginia Institute of Marine Science
iRobot Seaglider
AUV