http://lod.bco-dmo.org/id/dataset/1004720
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
2026-08-12
ISO 19115-2 Geographic Information - Metadata - Part 2: Extensions for Imagery and Gridded Data
ISO 19115-2:2009(E)
CTD profiles collected from R/V Sally Ride cruise SR2508 off the coast of California from April 8 to 21, 2025
2026-08-12
publication
2026-08-12
revision
Woods Hole Oceanographic Institution (WHOI BCO-DMO)
2026-08-14
publication
https://doi.org/10.26008/1912/bco-dmo.1004720.1
Anne E. Dekas
Stanford University
principalInvestigator
Gert Van Dijken
Stanford 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: Van Dijken, G., Dekas, A. E. (2026) CTD profiles collected from R/V Sally Ride cruise SR2508 off the coast of California from April 8 to 21, 2025. Biological and Chemical Oceanography Data Management Office (BCO-DMO). (Version 1) Version Date 2026-08-12 [if applicable, indicate subset used]. doi:10.26008/1912/bco-dmo.1004720.1 [access date]
SR2508 CTD profiles Dataset Description: Methods and Sampling: <p>During deployments, the CTD/Rosette with 24 10-liter (L) Niskin bottles was controlled from the console on a Windows PC, using the Sea-Bird SeaSave software (version 7.26.7.121). The CTD/Rosette was first lowered to 10 meters wire out for a 'soak' to let the oxygen and other sensors acclimate. Once the oxygen reading was stable and temperature and salinity differences of the dual sensors were minimal (usually 1-2 minutes), the CTD/Rosette was brought back to the surface and then sent down to the deepest sampling depth. The Niskin bottles were closed during the upcast. Once the CTD/Rosette reached a target depth, bottles were closed after waiting for 2-3 ship rolls or about 20-25 seconds. This resulted in the water that was being dragged up by the CTD/rosette to dissipate and ensured that the water collected in the bottle was representative of the undisturbed water at that depth. On casts where samples were collected 10 meters above the seafloor, the altimeter was used to determine the distance of the CTD/Rosette to the bottom. The altimeter normally kicked in at around 100 meters from the bottom.</p>
Funding provided by NSF Division of Ocean Sciences (NSF OCE) Award Number: OCE-2143035 Award URL: https://www.nsf.gov/awardsearch/show-award?AWD_ID=2143035
completed
Anne E. Dekas
Stanford University
650-736-1225
473 Via Ortega, Y2E2 Room 140
Stanford
CA
94305-4216
USA
dekas@stanford.edu
pointOfContact
Gert Van Dijken
Stanford University
(650) 736-1231
Mitchell Earth Sciences Building A67 Department of Environmental Earth System Science (EESS) School of Earth Sciences Stanford University
Stanford
CA
94305-2215
USA
gertvd@stanford.edu
pointOfContact
asNeeded
Dataset Version: 1
Unknown
file_name
STNNBR
CASTNO
DEPTH_BOTTOM
ISO_DateTime_UTC
DATE
TIME
LATITUDE
LONGITUDE
CTDPRS
CTDPRS_FLAG_W
CTDDEPTH
CTDDEPTH_FLAG_W
CTDTMP
CTDTMP_FLAG_W
CTDTMP2
CTDTMP2_FLAG_W
CTDSAL
CTDSAL_FLAG_W
CTDSAL2
CTDSAL2_FLAG_W
CTDOXY
CTDOXY_FLAG_W
CTDFLUOR
CTDFLUOR_FLAG_W
CTDXMISS
CTDXMISS_FLAG_W
PAR
PAR_FLAG_W
SPAR
SPAR_FLAG_W
SIGMA_THETA
SIGMA_THETA_FLAG_W
SIGMA_THETA2
SIGMA_THETA2_FLAG_W
SIGMA_T
SIGMA_T_FLAG_W
SIGMA_T2
SIGMA_T2_FLAG_W
POTENTIAL_TMP
POTENTIAL_TMP_FLAG_W
POTENTIAL_TMP2
POTENTIAL_TMP2_FLAG_W
ALTIMETER
ALTIMETER_FLAG_W
Biospherical QSP2350
Biospherical QSR2200
Sea-Bird SBE 43
Sea-Bird SBE9plus CTD
Sea-Bird SBE 03
Sea-Bird SBE 4
Seapoint Chlorophyll Fluorometer
Valeport VA500
Sea-Bird C-Star 25cm
theme
None, User defined
file_name
station
cast
depth_w
ISO_DateTime_UTC
date_start
time_start
latitude
longitude
water pressure
quality flag
depth
water temperature at measurement depth
temperature (temp2) from secondary sensor
salinity
salinity calculated from the CTD secondary sensors
dissolved Oxygen
fluorescence
transmission
PAR
SPAR
sigma-t
potential temperature
altitude
featureType
BCO-DMO Standard Parameters
Biospherical Instruments QSP-2350 underwater PAR sensor
Biospherical Instruments QSR 2200 surface reference radiometer
Sea-Bird SBE 43 Dissolved Oxygen Sensor
Sea-Bird SBE 9plus CTD
Sea-Bird SBE-3 Temperature Sensor
Sea-Bird SBE-4 Conductivity Sensor
Seapoint chlorophyll fluorometer
Valeport VA500 altimeter
WET Labs {Sea-Bird WETLabs} C-Star transmissometer
instrument
BCO-DMO Standard Instruments
SR2508
service
Deployment Activity
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.
Microbial Activity and Chemoautotrophy in the Deep Sea: Who, How, and How Much?
https://osprey.bco-dmo.org/project/868163
Microbial Activity and Chemoautotrophy in the Deep Sea: Who, How, and How Much?
<p><em>NSF Award Abstract:</em>The deep sea, defined as deeper than 200 m, is the largest and least explored habitat on the surface of our planet. It covers nearly two-thirds of the Earth's surface, contains approximately 75% of marine water by volume, and is home to about 55% of all marine microorganisms. Deep-sea microorganisms can play important roles in shaping global chemistry and climate, for example producing and consuming greenhouse gases (e.g., carbon dioxide and nitrous oxide). However, the microbiology of deep-sea waters is understudied relative to that of the surface ocean. Recent data suggests a much more diverse and active microbial community at depth than previously thought, but much remains to be known. For instance, recent estimates suggest that approximately 60% of the microbial species in the deep sea are novel. This project investigates the metabolic activity of deep-sea microorganisms, focusing on chemoautotrophy and the carbon cycle. Chemoautotrophy is a microbial metabolism in which inorganic carbon (e.g., carbon dioxide) is converted to sugar and biomass using chemical energy. This project uses several state-of-the-art sampling and analyses techniques to determine which species conduct chemoautotrophy (who?), what types of chemical energy support it (how?), and at what rate it occurs (how much?) throughout the deep sea. Answering these questions provides insight into deep-sea microbial ecology and quantitative data on the sources and sinks of carbon in deep waters. Results will advance our understanding of the ability of our oceans to sequester carbon over long timescales. This work benefits society through the implications of its findings for our ability to predict and mitigate climate change, as well as its educational mission, which includes training high school, undergraduate, and graduate students in interdisciplinary, climate-relevant science through one-on-one mentorship, hands-on coursework, and the initiation of an annual regional symposium featuring student research.</p>
<p>This project investigates uncultured microorganisms' genetic potential and activity in the mesopelagic and bathypelagic oceanographic layers (200 to 4000 m water depth) to characterize deep-sea microbiology and address a discrepancy in the marine carbon cycle, namely, that respiration rates consistently exceed estimates of vertical inputs of carbon to the dark ocean. Chemoautotrophy may explain at least part of this discrepancy, but known types of chemoautotrophy (e.g., coupled to ammonia and nitrite oxidation) are insufficient to bridge the gap, suggesting novel chemoautotrophs and diverse coupled catabolisms. The overarching hypotheses are that (1) deep-sea microorganisms are more active than currently appreciated, (2) the organic carbon required to support this activity is provided, at least in part, by higher rates of endogenous inorganic carbon fixation, and (3) carbon fixation is performed by more phylogenetically and metabolically diverse chemoautotrophs/mixotrophs than currently known. This study uses high-pressure sampling containers during two deep-sea oceanographic expeditions, metagenomics, metatranscriptomics, and stable-isotope experiments coupled to single-cell isotope analyses via nanoSIMS to (1) quantify microbial anabolic activity in general and chemoautotrophy, mixotrophy, and heterotrophy specifically at bulk and single-cell levels, (2) characterize the diversity and distribution of genes and transcripts involved in chemoautotrophy and heterotrophy, (3) identify novel chemoautotrophs and mixotrophs and quantify their contribution to carbon cycling, and (4) investigate the ability of a major chemoautotrophic deep-sea lineage, the Marine Group I Thaumarchaeota, to utilize organic matter. The results have the potential to reveal novel functions in uncultured microbes and change our understanding of marine carbon cycling.</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>
DARC Microbes
largerWorkCitation
project
eng; USA
oceans
-126.743
-122.545
34.4352
37.1338
2025-04-08
2025-04-20
Northeast Pacific Ocean and the Mediterranean Sea
0
BCO-DMO catalogue of parameters from CTD profiles collected from R/V Sally Ride cruise SR2508 off the coast of California from April 8 to 21, 2025
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/1004782.rdf
Name: file_name
Units: unitless
Description: <p>name of the original csv file</p>
http://lod.bco-dmo.org/id/dataset-parameter/1004783.rdf
Name: STNNBR
Units: unitless
Description: <p>Station number</p>
http://lod.bco-dmo.org/id/dataset-parameter/1004784.rdf
Name: CASTNO
Units: unitless
Description: <p>Cast number</p>
http://lod.bco-dmo.org/id/dataset-parameter/1004785.rdf
Name: DEPTH_BOTTOM
Units: meters (m)
Description: <p>Depth of the water column at the sampling station</p>
http://lod.bco-dmo.org/id/dataset-parameter/1004786.rdf
Name: ISO_DateTime_UTC
Units: unitless
Description: <p>Date and time (UTC) at start of cast in ISO 8601 format</p>
http://lod.bco-dmo.org/id/dataset-parameter/1004788.rdf
Name: DATE
Units: unitless
Description: <p>Date at start of cast</p>
http://lod.bco-dmo.org/id/dataset-parameter/1004789.rdf
Name: TIME
Units: unitless
Description: <p>Time (UTC) at start of cast</p>
http://lod.bco-dmo.org/id/dataset-parameter/1004790.rdf
Name: LATITUDE
Units: decimal degrees
Description: <p>Latitude at start of cast</p>
http://lod.bco-dmo.org/id/dataset-parameter/1004792.rdf
Name: LONGITUDE
Units: decimal degrees
Description: <p>Longitude at start of cast</p>
http://lod.bco-dmo.org/id/dataset-parameter/1004794.rdf
Name: CTDPRS
Units: decibars (dbar)
Description: <p>Pressure</p>
http://lod.bco-dmo.org/id/dataset-parameter/1004795.rdf
Name: CTDPRS_FLAG_W
Units: unitless
Description: <p>WOCE CTD Quality Code (see <a href="https://exchange-format.readthedocs.io/en/latest/quality.html">https://exchange-format.readthedocs.io/en/latest/quality.html</a>)</p>
http://lod.bco-dmo.org/id/dataset-parameter/1004796.rdf
Name: CTDDEPTH
Units: meters (m)
Description: <p>Depth</p>
http://lod.bco-dmo.org/id/dataset-parameter/1004798.rdf
Name: CTDDEPTH_FLAG_W
Units: unitless
Description: <p>WOCE CTD Quality Code (see <a href="https://exchange-format.readthedocs.io/en/latest/quality.html">https://exchange-format.readthedocs.io/en/latest/quality.html</a>)</p>
http://lod.bco-dmo.org/id/dataset-parameter/1004799.rdf
Name: CTDTMP
Units: degrees Celsius, ITS-90
Description: <p>Temperature, sensor 1</p>
http://lod.bco-dmo.org/id/dataset-parameter/1004800.rdf
Name: CTDTMP_FLAG_W
Units: unitless
Description: <p>WOCE CTD Quality Code (see <a href="https://exchange-format.readthedocs.io/en/latest/quality.html">https://exchange-format.readthedocs.io/en/latest/quality.html</a>)</p>
http://lod.bco-dmo.org/id/dataset-parameter/1004801.rdf
Name: CTDTMP2
Units: degrees Celsius, ITS-90
Description: <p>Temperature, sensor 2</p>
http://lod.bco-dmo.org/id/dataset-parameter/1004802.rdf
Name: CTDTMP2_FLAG_W
Units: unitless
Description: <p>WOCE CTD Quality Code (see <a href="https://exchange-format.readthedocs.io/en/latest/quality.html">https://exchange-format.readthedocs.io/en/latest/quality.html</a>)</p>
http://lod.bco-dmo.org/id/dataset-parameter/1004803.rdf
Name: CTDSAL
Units: PSU
Description: <p>Salinity, sensor 1</p>
http://lod.bco-dmo.org/id/dataset-parameter/1004804.rdf
Name: CTDSAL_FLAG_W
Units: unitless
Description: <p>WOCE CTD Quality Code (see <a href="https://exchange-format.readthedocs.io/en/latest/quality.html">https://exchange-format.readthedocs.io/en/latest/quality.html</a>)</p>
http://lod.bco-dmo.org/id/dataset-parameter/1004805.rdf
Name: CTDSAL2
Units: PSU
Description: <p>Salinity, sensor 2</p>
http://lod.bco-dmo.org/id/dataset-parameter/1004806.rdf
Name: CTDSAL2_FLAG_W
Units: unitless
Description: <p>WOCE CTD Quality Code (see <a href="https://exchange-format.readthedocs.io/en/latest/quality.html">https://exchange-format.readthedocs.io/en/latest/quality.html</a>)</p>
http://lod.bco-dmo.org/id/dataset-parameter/1004807.rdf
Name: CTDOXY
Units: micromoles per liter (umol/L)
Description: <p>Oxygen</p>
http://lod.bco-dmo.org/id/dataset-parameter/1004808.rdf
Name: CTDOXY_FLAG_W
Units: unitless
Description: <p>WOCE CTD Quality Code (see <a href="https://exchange-format.readthedocs.io/en/latest/quality.html">https://exchange-format.readthedocs.io/en/latest/quality.html</a>)</p>
http://lod.bco-dmo.org/id/dataset-parameter/1004809.rdf
Name: CTDFLUOR
Units: milligrams per cubic meter (mg/m^3)
Description: <p>Fluorescence</p>
http://lod.bco-dmo.org/id/dataset-parameter/1004810.rdf
Name: CTDFLUOR_FLAG_W
Units: unitless
Description: <p>WOCE CTD Quality Code (see <a href="https://exchange-format.readthedocs.io/en/latest/quality.html">https://exchange-format.readthedocs.io/en/latest/quality.html</a>)</p>
http://lod.bco-dmo.org/id/dataset-parameter/1004811.rdf
Name: CTDXMISS
Units: percent transmission
Description: <p>Transmission</p>
http://lod.bco-dmo.org/id/dataset-parameter/1004812.rdf
Name: CTDXMISS_FLAG_W
Units: unitless
Description: <p>WOCE CTD Quality Code (see <a href="https://exchange-format.readthedocs.io/en/latest/quality.html">https://exchange-format.readthedocs.io/en/latest/quality.html</a>)</p>
http://lod.bco-dmo.org/id/dataset-parameter/1004813.rdf
Name: PAR
Units: micromoles per square meter per second (umol/m^2/sec)
Description: <p>PAR (Photosynthetically Active Radiation)</p>
http://lod.bco-dmo.org/id/dataset-parameter/1004814.rdf
Name: PAR_FLAG_W
Units: unitless
Description: <p>WOCE CTD Quality Code (see <a href="https://exchange-format.readthedocs.io/en/latest/quality.html">https://exchange-format.readthedocs.io/en/latest/quality.html</a>)</p>
http://lod.bco-dmo.org/id/dataset-parameter/1004815.rdf
Name: SPAR
Units: micromoles per square meter per second (umol/m^2/sec)
Description: <p>Surface PAR</p>
http://lod.bco-dmo.org/id/dataset-parameter/1004816.rdf
Name: SPAR_FLAG_W
Units: unitless
Description: <p>WOCE CTD Quality Code (see <a href="https://exchange-format.readthedocs.io/en/latest/quality.html">https://exchange-format.readthedocs.io/en/latest/quality.html</a>)</p>
http://lod.bco-dmo.org/id/dataset-parameter/1004817.rdf
Name: SIGMA_THETA
Units: kilograms per cubic meter (kg/m^3)
Description: <p>Potential density anomaly, sensor 1</p>
http://lod.bco-dmo.org/id/dataset-parameter/1004818.rdf
Name: SIGMA_THETA_FLAG_W
Units: unitless
Description: <p>WOCE CTD Quality Code (see <a href="https://exchange-format.readthedocs.io/en/latest/quality.html">https://exchange-format.readthedocs.io/en/latest/quality.html</a>)</p>
http://lod.bco-dmo.org/id/dataset-parameter/1004819.rdf
Name: SIGMA_THETA2
Units: kilograms per cubic meter (kg/m^3)
Description: <p>Potential density anomaly, sensor 2</p>
http://lod.bco-dmo.org/id/dataset-parameter/1004820.rdf
Name: SIGMA_THETA2_FLAG_W
Units: unitless
Description: <p>WOCE CTD Quality Code (see <a href="https://exchange-format.readthedocs.io/en/latest/quality.html">https://exchange-format.readthedocs.io/en/latest/quality.html</a>)</p>
http://lod.bco-dmo.org/id/dataset-parameter/1004821.rdf
Name: SIGMA_T
Units: kilograms per cubic meter (kg/m^3)
Description: <p>Density , sensor 1</p>
http://lod.bco-dmo.org/id/dataset-parameter/1004822.rdf
Name: SIGMA_T_FLAG_W
Units: unitless
Description: <p>WOCE CTD Quality Code (see <a href="https://exchange-format.readthedocs.io/en/latest/quality.html">https://exchange-format.readthedocs.io/en/latest/quality.html</a>)</p>
http://lod.bco-dmo.org/id/dataset-parameter/1004823.rdf
Name: SIGMA_T2
Units: kilograms per cubic meter (kg/m^3)
Description: <p>Density, sensor 2</p>
http://lod.bco-dmo.org/id/dataset-parameter/1004824.rdf
Name: SIGMA_T2_FLAG_W
Units: unitless
Description: <p>WOCE CTD Quality Code (see <a href="https://exchange-format.readthedocs.io/en/latest/quality.html">https://exchange-format.readthedocs.io/en/latest/quality.html</a>)</p>
http://lod.bco-dmo.org/id/dataset-parameter/1004825.rdf
Name: POTENTIAL_TMP
Units: degrees Celsius
Description: <p>Potential temperature, sensor 1</p>
http://lod.bco-dmo.org/id/dataset-parameter/1004826.rdf
Name: POTENTIAL_TMP_FLAG_W
Units: unitless
Description: <p>WOCE CTD Quality Code (see <a href="https://exchange-format.readthedocs.io/en/latest/quality.html">https://exchange-format.readthedocs.io/en/latest/quality.html</a>)</p>
http://lod.bco-dmo.org/id/dataset-parameter/1004827.rdf
Name: POTENTIAL_TMP2
Units: degrees Celsius
Description: <p>Potential temperature, sensor 2</p>
http://lod.bco-dmo.org/id/dataset-parameter/1004828.rdf
Name: POTENTIAL_TMP2_FLAG_W
Units: unitless
Description: <p>WOCE CTD Quality Code (see <a href="https://exchange-format.readthedocs.io/en/latest/quality.html">https://exchange-format.readthedocs.io/en/latest/quality.html</a>)</p>
http://lod.bco-dmo.org/id/dataset-parameter/1004829.rdf
Name: ALTIMETER
Units: meters (m)
Description: <p>Altimeter</p>
http://lod.bco-dmo.org/id/dataset-parameter/1004830.rdf
Name: ALTIMETER_FLAG_W
Units: unitless
Description: <p>WOCE CTD Quality Code (see <a href="https://exchange-format.readthedocs.io/en/latest/quality.html">https://exchange-format.readthedocs.io/en/latest/quality.html</a>)</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
https://doi.org/10.26008/1912/bco-dmo.1004720.1
download
onLine
dataset
<p>During deployments, the CTD/Rosette with 24 10-liter (L) Niskin bottles was controlled from the console on a Windows PC, using the Sea-Bird SeaSave software (version 7.26.7.121). The CTD/Rosette was first lowered to 10 meters wire out for a 'soak' to let the oxygen and other sensors acclimate. Once the oxygen reading was stable and temperature and salinity differences of the dual sensors were minimal (usually 1-2 minutes), the CTD/Rosette was brought back to the surface and then sent down to the deepest sampling depth. The Niskin bottles were closed during the upcast. Once the CTD/Rosette reached a target depth, bottles were closed after waiting for 2-3 ship rolls or about 20-25 seconds. This resulted in the water that was being dragged up by the CTD/rosette to dissipate and ensured that the water collected in the bottle was representative of the undisturbed water at that depth. On casts where samples were collected 10 meters above the seafloor, the altimeter was used to determine the distance of the CTD/Rosette to the bottom. The altimeter normally kicked in at around 100 meters from the bottom.</p>
Specified by the Principal Investigator(s)
<p>After the cast was completed, the raw data was processed using the SBE Data Processing SeaSoft software (version 7.26.7).&nbsp; The following processing modules were used in sequence:</p>
<p>1. DatCnv – converts raw binary data to engineering units using the sensor calibrations and outputs data in text format (.cnv files).</p>
<p>2. Filter – applies a low pass filter to smooth rapidly changing data.&nbsp; The filter was applied to the following parameters: pressure (depth), oxygen and transmission.</p>
<p>3. AlignCTD – aligns slower responding sensors with pressure.&nbsp; A 3 second offset was used for the oxygen sensor.</p>
<p>4. CellTM – removes conductivity cell thermal mass effects.</p>
<p>5. LoopEdit – removes effects of pressure reversals due to ship roll.&nbsp; It was also used to remove the surface soak from the downcast.</p>
<p>6. Derive – uses pressure, temperature and conductivity from the sensors to derive parameters like salinity, density, potential temperature, etc.</p>
<p>7. BinAvg – bins the data.&nbsp; Data was binned in 1 db pressure increments.</p>
<p>8. DataCnv for bottles – see above.</p>
<p>9. BottleSum – creates a bottle summary file that includes all sensor data around time of bottle closure.</p>
Specified by the Principal Investigator(s)
- Imported the 32 original CTD cast files ("SR2508_S1_CTD01" through "SR2508_S4_CTD17") into the BCO-DMO data processing system.
- Parsed header row from row 12, with commas as delimiter.
- Skipped rows matching "END_DATA" and "DBAR" (units row) strings.
- Captured metadata values from skipped comment rows using regex patterns, creating new columns: STNNBR, CASTNO, DATE, TIME, LATITUDE, LONGITUDE, and DEPTH_BOTTOM.
- Flagged "-9.990e-29" as a missing data value (note that missing data values are empty/blank in the final CSV file).
- Concatenated all 32 files into a single table, adding a new "file_name" column capturing the source filename for each row.
- Renamed columns to comply with BCO-DMO naming conventions.
- Combined DATE (parsed as %Y%m%d) and TIME (parsed as %H%M) columns, both interpreted in UTC, into a new datetime column, ISO_DateTime_UTC, formatted as %Y-%m-%dT%H:%MZ.
- Saved the final file as "1004720_v1_sr2508_ctd_profiles.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
Biospherical QSP2350
Biospherical QSP2350
PI Supplied Instrument Name: Biospherical QSP2350 Instrument Name: Biospherical Instruments QSP-2350 underwater PAR sensor Instrument Short Name:Biospherical QSP-2350 Instrument Description: Quantum Scalar Irradiance PAR Sensor. Developed for data loggers with limited dynamic range. It uses a scalar irradiance collector to obtain a uniform directional response over 3.6-pi steradians. A stainless steel encased optical light pipe guides flux from the collector to a filtered silicon photodetector, resulting in a flat quantum response over the PAR spectral region (400 - 700 nm). The sensor produces a logarithmically compressed analog voltage output and BH-4-MP connector. It operates in water depths up to 2000 m.
Biospherical QSR2200
Biospherical QSR2200
PI Supplied Instrument Name: Biospherical QSR2200 Instrument Name: Biospherical Instruments QSR 2200 surface reference radiometer Instrument Short Name:Biospherical QSR-2200 Instrument Description: A surface reference radiometer to measure scalar irradiance from sunlight with a PAR response. These sensors are often used on ships during on-deck incubations, or while a QSP sensor is vertically profiling, for example, when mounted on a CTD. The QSR-2200 outputs a linear analog signal and is compatible with data loggers that can accept a wide range of signal voltages. QSR sensors are equipped with a detachable field-of-view cutoff shield to limit its response to light from the upper hemisphere (2 Pi steradians).
Sea-Bird SBE 43
Sea-Bird SBE 43
PI Supplied Instrument Name: Sea-Bird SBE 43 Instrument Name: Sea-Bird SBE 43 Dissolved Oxygen Sensor Instrument Short Name:SBE-43 DO Instrument Description: The Sea-Bird SBE 43 dissolved oxygen sensor is a redesign of the Clark polarographic membrane type of dissolved oxygen sensors. More information from the manufacturer: https://www.seabird.com/products/sbe-43-dissolved-oxygen-sensor Community Standard Description: http://vocab.nerc.ac.uk/collection/L22/current/TOOL0036/
Sea-Bird SBE9plus CTD
Sea-Bird SBE9plus CTD
PI Supplied Instrument Name: Sea-Bird SBE9plus CTD Instrument Name: Sea-Bird SBE 9plus CTD Instrument Short Name:Seabird SBE 9plus Instrument Description: High precision and accuracy CTD comprising an SBE 9plus underwater unit (SBE 3plus temperature, SBE 4C conductivity, and Paroscientific Digiquartz pressure sensors, and an SBE 5T submersible pump). Can be used for either real-time data acquisition or for autonomous operations at a sampling speed of up to 24 Hz. The instrument package also includes a TC duct, to reduce salinity spiking caused by ship heave for improved resolution of water column features, and to ensure that temperature and conductivity measurements are made on the same parcel of water. Supplied with both an aluminium and titanium main housing, allowing for use up to 6800 and 10,500 metre depths respectively. Also capable of measuring from eight auxiliary sensors.
Sea-Bird SBE 03
Sea-Bird SBE 03
PI Supplied Instrument Name: Sea-Bird SBE 03 Instrument Name: Sea-Bird SBE-3 Temperature Sensor Instrument Short Name:SBE-3 Temperature Instrument Description: The SBE-3 is a slow response, frequency output temperature sensor manufactured by Sea-Bird Electronics, Inc. (Bellevue, Washington, USA). It has an initial accuracy of +/- 0.001 degrees Celsius with a stability of +/- 0.002 degrees Celsius per year and measures seawater temperature in the range of -5.0 to +35 degrees Celsius. More information from Sea-Bird Electronics: https://www.seabird.com/products/sbe-3-oceanographic-temperature-sensor Community Standard Description: http://vocab.nerc.ac.uk/collection/L05/current/134/
Sea-Bird SBE 4
Sea-Bird SBE 4
PI Supplied Instrument Name: Sea-Bird SBE 4 Instrument Name: Sea-Bird SBE-4 Conductivity Sensor Instrument Short Name:SBE-4 Conductivity Instrument Description: The Sea-Bird SBE-4 conductivity sensor is a modular, self-contained instrument that measures conductivity from 0 to 7 Siemens/meter. The sensors (Version 2; S/N 2000 and higher) have electrically isolated power circuits and optically coupled outputs to eliminate any possibility of noise and corrosion caused by ground loops. The sensing element is a cylindrical, flow-through, borosilicate glass cell with three internal platinum electrodes. Because the outer electrodes are connected together, electric fields are confined inside the cell, making the measured resistance (and instrument calibration) independent of calibration bath size or proximity to protective cages or other objects. Community Standard Description: http://vocab.nerc.ac.uk/collection/L22/current/TOOL0417/
Seapoint Chlorophyll Fluorometer
Seapoint Chlorophyll Fluorometer
PI Supplied Instrument Name: Seapoint Chlorophyll Fluorometer Instrument Name: Seapoint chlorophyll fluorometer Instrument Short Name:Seapoint fluorometer Instrument Description: A high-performance, low power fluorometer for in-situ measurements of chlorophyll-a able to operate at depths of up to 6000 metres. May be used open in-situ or with a pump through sample volume. Internal circuitry gives an output voltage that is proportional to chlorophyll-a concentration.
Valeport VA500
Valeport VA500
PI Supplied Instrument Name: Valeport VA500 Instrument Name: Valeport VA500 altimeter Instrument Short Name:Valeport VA500 Instrument Description: A titanium-housed acoustic altimeter used for underwater positioning to determine distance to or height above the seabed. Can be mounted and used on ROVs, AUVs, and other such platforms for various underwater construction and hydrographic applications. The VA500 features a 500kHz broadband transducer offering a range of 0.1m to 100m, a resolution of 1mm and a beam angle +/- 3 degrees. It features RS232 and RS485 digital output as standard, and is supplied with free DataLog X2 software for instrument setup and data display. An optional Valeport miniIPS pressure sensor can be added. The pressure sensor is a temperature compensated piezo-resistive sensor with various ranges available, an accuracy +/- 0.01 percent FS, and a resolution of 0.001 percent FS. The VA500 is depth-rated to 6000m.
Sea-Bird C-Star 25cm
Sea-Bird C-Star 25cm
PI Supplied Instrument Name: Sea-Bird C-Star 25cm Instrument Name: WET Labs {Sea-Bird WETLabs} C-Star transmissometer Instrument Short Name:WL CSTAR Trans Instrument Description: The C-Star transmissometer has a novel monolithic housing with a highly integrated opto-electronic design to provide a low cost, compact solution for underwater measurements of beam transmittance. The C-Star is capable of free space measurements or flow-through sampling when used with a pump and optical flow tubes. The sensor can be used in profiling, moored, or underway applications. Available with a 6000 m depth rating.
More information on Sea-Bird website: https://www.seabird.com/c-star-transmissometer/product?id=60762467717 Community Standard Description: http://vocab.nerc.ac.uk/collection/L22/current/TOOL0160/
Cruise: SR2508
SR2508
R/V Sally Ride
Community Standard Description
International Council for the Exploration of the Sea
R/V Sally Ride
vessel
SR2508
Anne E. Dekas
Stanford University
R/V Sally Ride
Community Standard Description
International Council for the Exploration of the Sea
R/V Sally Ride
vessel