14:I[71133,["4507","static/chunks/e2799680-446c489506865058.js","7665","static/chunks/7665-81c5407bc4489ff9.js","8500","static/chunks/8500-e4dd1cb1bb626827.js","9753","static/chunks/9753-028c0a26aa71f2d4.js","8437","static/chunks/8437-a09d0b83fcec76af.js","4557","static/chunks/4557-64c5efa221bc528f.js","947","static/chunks/947-410627998426400f.js","5357","static/chunks/5357-6142894e88cb7da2.js","1498","static/chunks/app/dataset/%5Bid%5D/data/view/%5Bfileid%5D/page-177ea8adea7aed86.js"],"default"] 15:Tad1,This section documents curation actions performed prior to publication review with the submitter, and additional information relevant to understanding and reusing this dataset. It distinguishes changes made to the submitted (meta)data from unresolved issues and/or enhancements that improve future reuse and interoperability. CURATION ACTIONS PERFORMED ON DATA - Loaded Cast_1 data from Sheet1 of SPOT_CTD_20250219.xlsx, with header on row 1, applying floating point error adjustment and preserved formatting; empty strings and "nd" set as missing values - Loaded Cast_2 data from Sheet2 of the same file, which lacked Date_of_sampling, Latitude, Longitude, and Cast_ID columns; noted that its Flag column was stored in scientific notation (e.g. 0.00E+00); same missing value and formatting settings applied - Added constant column Date_of_sampling ("2025-02-19") from sheet1 to all sheet2 rows, constant column Latitude (33.55) from sheet1 to all sheet2 rows via math operation, constant column Longitude (-118.4) from sheet1 to all sheet2 rows via math operation, and constant column Cast_ID ("Cast_2") to all sheet2 rows, which represent data from the second cast - Concatenated sheet1 and sheet2 into a single table named combined_ctd, mapping matching columns (C0S/m, CStarTr0, Cast_ID, Date_of_sampling, DepSM, FlECO-AFL, Flag, Latitude, Longitude, Par/sat/log, Ph, PrdE, Sal00, Sbeox0Mg/L, Sbeox0PS, T090C, TimeS, TurbWETntu0) - Renamed columns based on BCO-DMO conventions: T090C to Temp, C0S/m to Conductivity, Sal00 to Salinity, PrdE to Pressure, Sbeox0Mg/L to Oxygen_mg_l, Sbeox0PS to Oxygen_percent_sat, Par/sat/log to PAR, FlECO-AFL to Fluorescence, TurbWETntu0 to Turbidity, CStarTr0 to Beam_transmission, TimeS to Elapsed_time, DepSM to Depth - Set Flag column to number type first to correctly parse scientific-notation values (e.g. 0.00E+00) originating from sheet2 - Rounded Flag to zero decimal places without preserving trailing zeros, converting it to integer type, resolving the scientific-notation casting issue - Output as 1005588_v1_spot_ctd_20250219.csv - Loaded 1005588_v1_spot_ctd_20250219_submitter_edit.csv (a deduplicated draft provided by the submitter after review of the initial draft), using filename as resource name, treating "" and "nd" as missing values - Removed first draft 1005588_v1_spot_ctd_20250219.csv - Output 1005588_v1_spot_ctd_20250219_submitter_edit as 1005588_v1_spot_ctd_20250219.csv CURATION ACTIONS PERFORMED ON METADATA - BCO-DMO's standard metadata entry and text formatting steps were performed. See: https://www.bco-dmo.org/how-to/standard-curation-edits - Used context from methods section to provide more detail for parameter descriptions ISSUES POTENTIALLY IMPACTING REUSE - N/A16:T880,NSF Award Abstract: This project seeks to provide a deeper understanding of how major biogeochemical cycles that support all living marine resources will respond to climate warming in a changing ocean environment. It will train one postdoctoral researcher and three graduate students, and provides research training opportunities for undergraduate students in microbial physiology and ecology, bioinformatics, trace metal biogeochemistry, and oceanography. Project personnel also conduct K-12 education and outreach activities. All data is freely available through the Biological and Chemical Oceanographic Data Management Office (BCO-DMO). This project investigates how climate warming will interact with the unique trace metal requirements of marine nitrifying microorganisms (nitrifiers) to affect ammonia and nitrite oxidation pathways in the rapidly changing ocean. Four investigators with diverse expertise in microbial global change physiology, nitrogen and trace metal biogeochemistry, and mechanistic transcriptomics and proteomics combine their efforts, using well-controlled pure culture-based laboratory studies along with field incubation experiments with natural communities to systematically investigate 1) thermal effects on iron (Fe) and copper (Cu) requirements and use efficiencies in isolated cultures and natural populations of marine ammonia-oxidizing archaea and bacteria (AOA, AOB) and nitrite-oxidizing bacteria (NOB), 2) the underlying molecular and biochemical mechanisms that facilitate such thermally-driven adaptive responses, and 3) system-level feedbacks between global change, trace metal biogeochemistry, and marine nitrifiers and their associated microbial communities in diverse marine environments. Together, these studies enhance our understanding of the marine nitrogen cycle and trace metal biogeochemistry, and ultimately contribute to a more detailed understanding of the impact of rapid ocean warming on critical major nutrient and micronutrient cycles. 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.6:["$","$L14",null,{"dataset":{"_id":"1005588","description":"","problem":"The dataset includes two CTD casts conducted on the same date. A precise start time is available for Cast_2 based on instrument metadata (10:33:22 PST, UTC−8), whereas the exact start time for Cast_1 could not be confidently determined.","acquisition":"

CTD profiles were collected using a Sea-Bird CTD system deployed from the research vessel during the SPOT cruise. The dataset includes two CTD casts conducted on February 19, 2025, which are distinguished using a Cast_ID column. The instrument was stabilized near the surface (0–5 m) prior to profiling and then lowered through the water column at a controlled rate of approximately 10–40 m min⁻¹. Sensor data were recorded continuously during the downcast, and discrete water samples were collected during the upcast using Niskin bottles mounted on the rosette.

The CTD system consisted of a Sea-Bird Electronics SBE 9plus equipped with sensors for pressure, temperature (SBE 3), conductivity (SBE 4C), and dissolved oxygen (SBE 43), as well as auxiliary sensors including photosynthetically active radiation (PAR), chlorophyll fluorescence (WET Labs ECO-AFL), turbidity, and beam transmission (C-Star transmissometer). Sensors were regularly calibrated by the manufacturer to ensure data accuracy.

\n","processing":"

CTD data were acquired at high frequency (24 Hz) using Sea-Bird software (Seasoft/Seasave) and processed using standard Sea-Bird protocols. Raw data files (.hex) and associated configuration files were used to generate processed profile data, including derived variables such as salinity from conductivity and temperature. Bottle data were matched to CTD profiles using time and depth records.

\n","bcodmoProcessing":"$15","title":"CTD profiles collected from the San Pedro Ocean Time-series (SPOT) station in the San Pedro Basin, Southern California Bight, aboard R/V Yellowfin on February 19, 2025","nickname":"CTD SPOT Cruise 2025","dataUrl":"","currentState":"Final no updates expected","currentStateId":"7","validated":true,"restricted":false,"version":"1","version_date":"2026-09-18T04:00:00.000Z","abstract":"This dataset contains CTD profiles collected during the SPOT cruise in the San Pedro Ocean Time-series (Southern California Bight) on February 19, 2025. Measurements include depth, temperature, salinity, pH, dissolved oxygen, PAR, and related optical and physical parameters, collected using a CTD system to characterize water column conditions.","citation":"Qin, W., Hutchins, D. A., Fu, F., John, S. G. (2026) CTD profiles collected from the San Pedro Ocean Time-series (SPOT) station in the San Pedro Basin, Southern California Bight, aboard R/V Yellowfin on February 19, 2025. Biological and Chemical Oceanography Data Management Office (BCO-DMO). (Version 1) Version Date 2026-09-18 [if applicable, indicate subset used]. doi:10.26008/1912/bco-dmo.1005588.1 [access date]","citationParts":{"identifier":"doi:10.26008/1912/bco-dmo.1005588.1","versionDate":"2026-09-18","versionId":"1","year":"2026","title":"CTD profiles collected from the San Pedro Ocean Time-series (SPOT) station in the San Pedro Basin, Southern California Bight, aboard R/V Yellowfin on February 19, 2025","authors":"Qin, W., Hutchins, D. A., Fu, F., John, S. G.","publisher":"Biological and Chemical Oceanography Data Management Office (BCO-DMO)."},"doi":"10.26008/1912/bco-dmo.1005588.1","release_date":null,"field_dataset_location":"The study area is the SPOT station in the Southern California Bight (33°33′N, 118°24′W), a coastal marine environment.","temporal_extent":{"start":"2025-02-19T05:00:00.000Z","end":"2025-02-19T05:00:00.000Z"},"temporal":{"resolution":"time:unitDay","type":"time:Instant","start":{"value":"","label":""},"end":{"value":"","label":""}},"spatial_extent":{"shape":"point","center":{"latitude":33.55,"longitude":-118.4},"wkt":" POINT (-118.4 33.55)","north":0,"east":0,"south":0,"west":0},"dataset_type":["Cruise Results"],"keywords":["oceans"],"data_files":[{"id":"1007866","title":"1005588_v1_spot_ctd_20250219.csv","url":"https://datadocs.bco-dmo.org/dataset/1005588/file/2GYQD2KsZABL02/1005588_v1_spot_ctd_20250219.csv","showTableUrl":"https://www.bco-dmo.org/dataset/1005588/data/view/1007866","description":"Primary data file for dataset ID 1005588, version 1","filename":"1005588_v1_spot_ctd_20250219.csv","bytesize":345242,"checksum":{"value":"976128447848a98144983c1a1852ce97","Algorithm":{"_id":"190","name":"MD5"}},"mimetype":"text/csv","fileType":{"_id":"192","name":"Comma Separated Values (.csv)"},"isErddap":"","date":"","isPublicDuringEmbargo":false,"primaryDataFile":true,"showTable":true,"restricted":false}],"supplemental_files":[],"roles":[{"role":{"_id":"138","name":"Principal Investigator"},"performedBy":{"_id":"51048","name":"David A. Hutchins"},"performedAtOrganization":{"_id":"306","name":"University of Southern California"}},{"role":{"_id":"138","name":"Principal Investigator"},"performedBy":{"_id":"921941","name":"Wei Qin"},"performedAtOrganization":{"_id":"247","name":"University of Oklahoma"}},{"role":{"_id":"140","name":"Co-Principal Investigator"},"performedBy":{"_id":"51585","name":"Feixue Fu"},"performedAtOrganization":{"_id":"184","name":"University of Southern California"}},{"role":{"_id":"140","name":"Co-Principal Investigator"},"performedBy":{"_id":"51622","name":"Seth G. John"},"performedAtOrganization":{"_id":"306","name":"University of Southern California"}},{"role":{"_id":"145","name":"BCO-DMO Data Manager"},"performedBy":{"_id":"924467","name":"Audrey Mickle"},"performedAtOrganization":{"_id":"191","name":"Woods Hole Oceanographic Institution"}}],"deployments":[{"_id":"1005709","name":"SPOT_20250219","synonyms":[],"dates":{"start":"2025-02-19T00:00:00.000Z","end":"2025-02-19T00:00:00.000Z"},"platform":{"_id":"536288","name":"R/V Yellowfin"},"chiefScientists":[]}],"funding":[{"_id":"929201","name":"OCE-2336534","fundingSource":{"_id":"355","name":"NSF Division of Ocean Sciences"},"url":"https://www.nsf.gov/awardsearch/show-award?AWD_ID=2336534"},{"_id":"997858","name":"OCE-2610907","fundingSource":{"_id":"355","name":"NSF Division of Ocean Sciences"},"url":"https://www.nsf.gov/awardsearch/show-award?AWD_ID=2610907"}],"instruments":[{"_id":"1005835","name":"Niskin bottles","description":"Sensor data were recorded continuously during the downcast, and discrete water samples were collected during the upcast using Niskin bottles mounted on the rosette.","type_id":"413","type_name":"Niskin bottle","type_desc":"A Niskin bottle (a next generation water sampler based on the Nansen bottle) is a cylindrical, non-metallic water collection device with stoppers at both ends. The bottles can be attached individually on a hydrowire or deployed in 12, 24, or 36 bottle Rosette systems mounted on a frame and combined with a CTD. Niskin bottles are used to collect discrete water samples for a range of measurements including pigments, nutrients, plankton, etc.","type_acronym":"Niskin bottle"},{"_id":"1005712","name":"Sea-Bird Electronics SBE 9plus","description":"The CTD system consisted of a Sea-Bird Electronics SBE 9plus equipped with sensors for pressure, temperature (SBE 3), conductivity (SBE 4C), and dissolved oxygen (SBE 43), as well as auxiliary sensors including photosynthetically active radiation (PAR), chlorophyll fluorescence (WET Labs ECO-AFL), turbidity, and beam transmission (C-Star transmissometer). Sensors were regularly calibrated by the manufacturer to ensure data accuracy.","type_id":"994216","type_name":"Sea-Bird SBE 9plus CTD","type_desc":"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.","type_acronym":"Seabird SBE 9plus"}],"parameters":[{"_id":"1005688","name":"Date_of_sampling","format":"%Y-%m-%d","frictionlessType":"date","description":"

Date of sampling in Pacific Standard Time

","units":{"_id":"","name":"unitless"},"type":{"_id":"1070","name":"date","description":"

date; generally reported in GMT as YYYYMMDD (year; month; day); also as MMDD (month; day); EqPac dates are local Hawaii time. ISO_Date format is YYYY-MM-DD (http://www.iso.org/iso/home/standards/iso8601.htm)

"}},{"_id":"1005689","name":"Latitude","format":"","frictionlessType":"number","description":"

Latitude of sampling location, positive is North

","units":{"_id":"","name":"decimal degrees"},"type":{"_id":"730","name":"latitude","description":"

latitude, in decimal degrees, North is positive, negative denotes South; Reported in some datasets as degrees, minutes

"}},{"_id":"1005691","name":"Longitude","format":"","frictionlessType":"number","description":"

Longitude of sampling location, negative is West

","units":{"_id":"","name":"decimal degrees"},"type":{"_id":"731","name":"longitude","description":"

longitude, in decimal degrees, East is positive, negative denotes West; Reported in some datasets as degrees, minutes

"}},{"_id":"1005693","name":"Cast_ID","format":"","frictionlessType":"string","description":"

Identifier for each CTD cast (e.g., Cast_1, Cast_2)

","units":{"_id":"","name":"unitless"},"type":{"_id":"761","name":"cast","description":"

cast or profile number

"}},{"_id":"1005694","name":"Depth","format":"","frictionlessType":"integer","description":"

Water depth derived from CTD (DepSM)

","units":{"_id":"","name":"meters (m)"},"type":{"_id":"808","name":"depth","description":"

Observation/sample depth below the sea surface. Units often reported as: meters, feet.

\nWhen used in a JGOFS/GLOBEC dataset the depth is a best estimate; usually but not always calculated from pressure; calculated either from CTD pressure using Fofonoff and Millard (1982; UNESCO Tech Paper #44) algorithm adjusted for 1980 equation of state for seawater (EOS80) or simply equivalent to nominal depth as recorded during sampling if CTD pressure was unavailable.

"}},{"_id":"1005696","name":"Temp","format":"","frictionlessType":"number","description":"

Seawater temperature measured on the ITS-90 scale (T090C)

","units":{"_id":"","name":"degrees Celsius (°C)"},"type":{"_id":"733","name":"temperature","description":"

water temperature at measurement depth

"}},{"_id":"1005697","name":"Conductivity","format":"","frictionlessType":"number","description":"

Electrical conductivity of seawater from the primary conductivity sensor (C0S/m)

","units":{"_id":"","name":"siemens per meter (S/m)"},"type":{"_id":"779","name":"conductivity","description":"

Conductivity. Units and collection methods may vary. Often reported in Siemens/meter.

When used in a JGOFS/GLOBEC project this is the conductivity in Siemens/meter for the primary conductivity sensor on a CTD.

"}},{"_id":"1005698","name":"Salinity","format":"","frictionlessType":"number","description":"

Practical salinity (Sal00)

","units":{"_id":"","name":"practical salinity unit (PSU)"},"type":{"_id":"1150","name":"sal_ctd","description":"

salinity from the CTD when water bottle tripped; calculated from conductivity per the PSS-78 scale

"}},{"_id":"1005699","name":"Pressure","format":"","frictionlessType":"number","description":"

Pressure measured by CTD (PrdE)

","units":{"_id":"","name":"decibar (dbar)"},"type":{"_id":"732","name":"pressure","description":"

water pressure at measurement; depth reported as pressure; positive number increasing with water depth

"}},{"_id":"1005700","name":"Oxygen_mg_l","format":"","frictionlessType":"number","description":"

Dissolved oxygen concentration (Sbeox0Mg/L)

","units":{"_id":"","name":"milligrams per liter (mg/L)"},"type":{"_id":"910","name":"dissolved Oxygen","description":"

dissolved oxygen concentration

"}},{"_id":"1005701","name":"Oxygen_percent_sat","format":"","frictionlessType":"number","description":"

Dissolved oxygen percent saturation (Sbeox0PS)

","units":{"_id":"","name":"percent (%)"},"type":{"_id":"1907","name":"O2_sat_pcnt","description":"

Saturation of oxygen in the water body, as a percentage.

"}},{"_id":"1005702","name":"Ph","format":"","frictionlessType":"number","description":"

Seawater pH (Ph)

","units":{"_id":"","name":"unitless"},"type":{"_id":"1892","name":"pH","description":"

pH: The measure of the acidity or basicity of an aqueous solution

"}},{"_id":"1005703","name":"PAR","format":"","frictionlessType":"number","description":"

Photosynthetically active radiation (Par/sat/log)

","units":{"_id":"","name":"microeinstein per square meter per second (μE m⁻² s⁻¹)"},"type":{"_id":"913","name":"PAR","description":"

Photosynthetically Available [Active] Radiation; downwelling irradiance; units vary: often microEinsteins/meter^2/second, microEinsteins/centimeter^2/second, or micromoles photons/meter/second

"}},{"_id":"1005704","name":"Fluorescence","format":"","frictionlessType":"number","description":"

Chlorophyll fluorescence (FlECO-AFL)

","units":{"_id":"","name":"relative units"},"type":{"_id":"835","name":"fluorescence","description":"

Fluorescence. Indirect measure of pigment concentration.

Units and collection method may vary. Units often reported in milligrams/meter^3 (mg/m3) or micromoles per liter (ug/L). Sometimes reported after being calibrated against extracted pigment concentrations.

In JGOFS/GLOBEC projects fluorescence is measured from CTD instrument sensor.

"}},{"_id":"1005705","name":"Turbidity","format":"","frictionlessType":"number","description":"

Turbidity (TurbWETntu0)

","units":{"_id":"","name":"nephelometric turbidity units (NTU)"},"type":{"_id":"1728","name":"turbidity","description":"

Turbidity is the cloudiness or haziness of a fluid caused by individual particles

"}},{"_id":"1005706","name":"Beam_transmission","format":"","frictionlessType":"number","description":"

Beam attenuation coefficient (CStarTr0)

","units":{"_id":"","name":"per meter (m⁻¹)"},"type":{"_id":"1147","name":"beam_cp","description":"

attenuation (loss of light) of a narrow, well collimated beam of light; beam attenuation due to particles; the particulate beam attenuation coefficient (cp)

"}},{"_id":"1005707","name":"Elapsed_time","format":"","frictionlessType":"number","description":"

Elapsed time during cast in seconds (TimeS)

","units":{"_id":"","name":"seconds (s)"},"type":{"_id":"1838","name":"time_elapsed","description":"

Elapsed time. Units can be seconds, minutes, etc.

"}},{"_id":"1005708","name":"Flag","format":"","frictionlessType":"integer","description":"

Data quality flag, Flag = 0 indicates valid data that passed quality control checks during CTD data processing; other flag values indicate questionable or invalid data.

","units":{"_id":"","name":"unitless"},"type":{"_id":"1144","name":"q_flag","description":"

quality flag; based on a PI established code; identifies a problem/quality issue with sample(s) from a given water bottle or single observation

"}}],"related_publications":[],"related_datasets":[{"_id":"1005611","name":"Depth profiles of nutrients and dark carbon fixation rates SPOT 2025","url":"","relation_type":"IsRelatedTo","type_desc":"

The dataset is related to another dataset.

\n","relation_desc":"Data collected during the same SPOT sampling date (February 19, 2025).","citation":"Qin, W., Hutchins, D. A., Fu, F., John, S. G. (2026) Depth profiles of nutrients and dark carbon fixation rates collected from the San Pedro Ocean Time-series (SPOT) R/V Yellowfin cruise in the San Pedro Basin on February 19, 2025. Biological and Chemical Oceanography Data Management Office (BCO-DMO). (Version 1) Version Date 2026-08-19 doi:10.26008/1912/bco-dmo.1005611.1"}],"services":[{"grouping":"","items":[{"name":"View Data","description":"An in-browser view of the primary tabular data file","url":"https://www.bco-dmo.org/dataset/1005588/data/view","contentType":"text/html","actionType":"view"}]},{"grouping":"Metadata","items":[{"name":"HTML","description":"A simple HTML page of the dataset metadata","url":"https://www.bco-dmo.org/dataset/1005588/description","contentType":"text/html","actionType":"view"},{"name":"PDF","description":"A PDF of the HTML dataset metadata","url":"https://www.bco-dmo.org/dataset/1005588/Dataset_description.pdf","contentType":"application/pdf","actionType":"download"},{"name":"ISO 19115-2 (NOAA Profile)","description":"","url":"https://www.bco-dmo.org/dataset/1005588/iso","contentType":"application/xml","actionType":"download"}]}],"programs":[],"projects":[{"_id":"921937","name":"Collaborative Research: The impact of ocean warming on bioactive trace metal requirements and use efficiencies of marine nitrifying microorganisms","acronym":"Nitrifiers_TMReqs_OceanWarming","description":"$16"}],"archives":[{"id_value":"10.26008/1912/bco-dmo.1005588.1","url":"https://doi.org/10.26008/1912/bco-dmo.1005588.1","date_assigned":"2026-09-18","version_date":"2026-09-18","archiver":"Woods Hole Oceanographic Institution (WHOI BCO-DMO)","archiver_id":"191"}],"license":{"name":"Creative Commons Attribution 4.0","id":"CC-BY-4.0","uri":"https://creativecommons.org/licenses/by/4.0/","spdxUri":"https://spdx.org/licenses/CC-BY-4.0"},"metrics":{"views":{"count":49},"downloads":{"count":50}}},"fileId":"1007866"}]