1b:I[42426,["/_next/static/immutable/chunks/1xctgzqre-wsy.js","/_next/static/immutable/chunks/06_-wz6pdtp2b.js","/_next/static/immutable/chunks/30e52g49hg40p.js","/_next/static/immutable/chunks/02yq6tul2z-oh.js","/_next/static/immutable/chunks/10bx_ec2vj7n_.js","/_next/static/immutable/chunks/33bfn03fo8xnt.js","/_next/static/immutable/chunks/0tfjf78scu61b.js","/_next/static/immutable/chunks/31xnvej4n1bi9.js"],"default"] 1c:T12ce,NSF Award Abstract: Decreasing marine dissolved oxygen (DO) is a widespread and growing global problem. Among the chief causes for coastal losses of DO are anthropogenic nutrient inputs that lead to seasonal hypoxia- DO concentrations below 2 mg/L. Microorganisms are the primary agents of oxygen removal, and although we have a basic mechanistic understanding of how nutrient enrichment combines with stratification to stimulate microbial metabolism and oxygen drawdown, we still do not know which microorganisms are ultimately responsible for oxygen consumption leading to, and during, coastal hypoxia in any particular region. Nor do we know the extent to which each hypoxic system arises from universal microbial mechanisms or whether there may be unique microorganisms and metabolic pathways involved in each locale. Hypoxic regions are increasing in number and size around the globe, amplifying the need to better understand the microbial processes responsible for oxygen consumption. In response, the project pursues an integrated research and education effort to study the microbial mechanisms of oxygen respiration in two coastal zones where DO depletion occurs: the northern Gulf of Mexico ?dead zone?, and the Southern California Bight. This work identifies the microorganism actively consuming oxygen in these systems, what fuels them, and whether/how those taxa respond to environmental changes. The investigators are generating microbial DO consumption rate, genetic, and taxonomic data critical to better constraining respiration models focused on water column DO depletion. In doing so, hundreds of undergraduate and students and dozens of high school STEM teachers contribute valuable data by participating in modern marine microbiological research. The project also improves integration of authentic research experiences into college and high-school classrooms in the context of a problem of global relevance. Regions of low DO take multiple forms, from vast open ocean oxygen minimum zones (OMZs) which hover in the upper water column, to shallower coastal zones of bottom water hypoxia fueled by close proximity to fluvial inputs of human supplied nutrients. Microbial respiration is primarily responsible for the ultimate consumption of DO, and therefore understanding the microorganisms that inhabit these systems and their metabolic capabilities is critical for improving our ability to predict the timing, extent, and severity of DO depletion, and how these factors relate to environmental change. While there has been substantial research into the microbiology of OMZs, we know comparatively little about the microbial dynamics, and in particular, the microorganisms responsible for oxygen consumption, in coastal hypoxia. This integrated research and education effort is framed by the following objectives: 1. Determine the microorganisms and metabolic processes responsible for actively respiring water column DO prior to, and during, hypoxia. 2. Quantify microbial respiration rates for communities and representative water column species in both the planktonic and particle-associated fractions. 3. Integrate authentic microbiology research on a globally relevant topic into undergraduate and high school classrooms. The work uses a combination of advanced cultivation-independent and pure culture measurements to discriminate between oxygen consumption by planktonic and particle-associated microbial fractions, as well as by communities at the surface and those in bottom waters, in two different systems of coastal DO depletion (the northern Gulf of Mexico hypoxic zone and the Southern California coastal shelf). Direct assessment of actively respiring taxa are connected with their metabolic potential, gene expression, and respiration rates. This project is determining, for the first time, the taxa actively consuming oxygen in these systems. The results also provide size fractionated respiration rates and bacterial growth efficiency (BGE) with depth across multiple sites and seasons, and importantly, also yield cell-specific respiration rates and BGE for active taxa within these systems. This data will constrain variable respiration across differing environmental conditions. The investigators are experimentally testing how alterations in environmental variables affect these respiration rates and BGEs, leading to greater predictive insight for the range of effects climate forcing will have on DO consumption. This information also facilitates comparisons between multiple marine systems to identify whether common or distinct organisms and metabolic processes are operating to remove DO. 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:["$","$L1b",null,{"dataset":{"_id":"859606","description":"","problem":"","acquisition":"

Fifteen CTD casts were taken during the PE21-18 cruise at 5 stations. The planned stations had the following location and depth:

Station: Lat, Long, Depth (m)
\nC6C: 28.8686, -90.4903, 19.2
\nD2: 28.8417, -90.8333, 15.6
\nD4: 28.6083, -90.8333, 19.1
\nE3: 28.6583, -91.25, 22
\nF4: 28.7833, -91.6167, 24.2

The data was collected using a SeaBird 911 plus system with 12-12 liter Niskin bottles. The instruments included in the 911 plus suite are dual Temperature (SBE 3), dual Conductivity (SBE 4), and dual Oxygen (SBE 43) sensors. Additionally, the suite included an SBE 27 pH/Oxidation, Chelsea Aquatracka 3 Chl_a, and a Wetlabs CDOM. Serial numbers and calibration information is stored in the Header Information included in the .cnv files.

\n","processing":"

The data was processed using Seabird's SBEDataProccessing_Win32 software. The data was converted from hexadecimal to engineering units first. Using the software’s Bin Averaging tool it was also averaged in bins of 0.5meters.

\n","bcodmoProcessing":"","title":"Processed CTD data (binned) and station information for the PE21-18 Microbial DO respir cruise (15 total casts) aboard the R/V Pelican during April and May 2021","nickname":"PE21-18 Binned CTD","dataUrl":"","currentState":"Final no updates expected","currentStateId":"7","validated":true,"restricted":false,"version":"1","version_date":"2021-11-08T05:00:00.000Z","abstract":"Processed CTD data (binned) and station information for the PE21-18 Microbial DO respir cruise (15 total casts) aboard the R/V Pelican during April and May 2021.","citation":"Thrash, J. C. (2021) Processed CTD data (binned) and station information for the PE21-18 Microbial DO respir cruise (15 total casts) aboard the R/V Pelican during April and May 2021. Biological and Chemical Oceanography Data Management Office (BCO-DMO). (Version 1) Version Date 2021-11-08 [if applicable, indicate subset used]. doi:10.26008/1912/bco-dmo.859606.1 [access date]","citationParts":{"identifier":"doi:10.26008/1912/bco-dmo.859606.1","versionDate":"2021-11-08","versionId":"1","year":"2021","title":"Processed CTD data (binned) and station information for the PE21-18 Microbial DO respir cruise (15 total casts) aboard the R/V Pelican during April and May 2021.","authors":"Thrash, J. C.","publisher":"Biological and Chemical Oceanography Data Management Office (BCO-DMO)."},"doi":"10.26008/1912/bco-dmo.859606.1","release_date":null,"field_dataset_location":"","temporal_extent":{"start":"2021-04-27T04:00:00.000Z","end":"2021-05-02T04:00:00.000Z"},"temporal":{"resolution":"time:unitDay","type":"time:Interval","start":{"value":"1619496000","label":"2021-04-27"},"end":{"value":"1619928000","label":"2021-05-02"}},"spatial_extent":{"shape":"polygon","center":{"latitude":28.738750000089,"longitude":-90.555160000282},"wkt":"POLYGON ((-90.62202 28.6074, -90.4883 28.6074, -90.4883 28.8701, -90.62202 28.8701, -90.62202 28.6074))","north":28.8701,"east":-90.4883,"south":28.6074,"west":-90.62202},"dataset_type":["Cruise Results"],"keywords":["oceans"],"data_files":[{"id":"903466","title":"pe2118_ctd_binned.csv","url":"https://datadocs.bco-dmo.org/dataset/859606/file/XYYPvV7TDrqB5n/pe2118_ctd_binned.csv","showTableUrl":"https://www.bco-dmo.org/dataset/859606/data/view/903466","description":"Primary data file for dataset ID 859606","filename":"pe2118_ctd_binned.csv","bytesize":172156,"checksum":{"value":"b3d0e32884b56ca1cf7173bd7f632a33","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":[{"id":"863367","title":"PE21-18 cruise plan","url":"https://datadocs.bco-dmo.org/docs/305/Coastal_O2_Respir/data_docs/Cruise_Plan_Apr2021.pdf","showTableUrl":"","description":"Cruise plan for PE21-18 cruise with cruise tracks, dates, science operation descriptions and schematics.","filename":"Cruise_Plan_Apr2021.pdf","bytesize":1310545,"checksum":{"value":"3e2aa0496a8b74aaf96af059ee825ce5","Algorithm":{"_id":"190","name":"MD5"}},"mimetype":"application/pdf","fileType":{"_id":"336","name":"Portable Document Format (.pdf)"},"isErddap":"","date":"","isPublicDuringEmbargo":false,"primaryDataFile":false,"showTable":false,"restricted":false},{"id":"863368","title":"PE21-18 navigation plot","url":"https://datadocs.bco-dmo.org/docs/305/Coastal_O2_Respir/data_docs/nav_plot_all_topo.png","showTableUrl":"","description":"PE21-18 navigation plot","filename":"nav_plot_all_topo.png","bytesize":13290,"checksum":{"value":"27c079463466eb83b67cd631892e561a","Algorithm":{"_id":"190","name":"MD5"}},"mimetype":"image/png","fileType":{"_id":"416","name":"Portable Network Graphics (.png)"},"isErddap":"","date":"","isPublicDuringEmbargo":false,"primaryDataFile":false,"showTable":false,"restricted":false},{"id":"863369","title":"PE21-18_binned_CTD","url":"https://datadocs.bco-dmo.org/docs/305/Coastal_O2_Respir/data_docs/PE21-18_binned_CTD.zip","showTableUrl":"","description":"Original Seabird CTD files (.cnv) for the dataset 859606, version 1. Sensor serial numbers and calibration information is store in the header information section. ","filename":"PE21-18_binned_CTD.zip","bytesize":96415,"checksum":{"value":"6aadc7e9eee5ee7ba3312e4b773b2eed","Algorithm":{"_id":"190","name":"MD5"}},"mimetype":"application/zip","fileType":{"_id":"196","name":"ZIP Archive (ZIP)"},"isErddap":"","date":"","isPublicDuringEmbargo":false,"primaryDataFile":false,"showTable":false,"restricted":false}],"roles":[{"role":{"_id":"138","name":"Principal Investigator"},"performedBy":{"_id":"707009","name":"J. Cameron Thrash"},"performedAtOrganization":{"_id":"306","name":"University of Southern California"}},{"role":{"_id":"133","name":"Contact"},"performedBy":{"_id":"707009","name":"J. Cameron Thrash"},"performedAtOrganization":{"_id":"306","name":"University of Southern California"}},{"role":{"_id":"145","name":"BCO-DMO Data Manager"},"performedBy":{"_id":"748773","name":"Karen Soenen"},"performedAtOrganization":{"_id":"191","name":"Woods Hole Oceanographic Institution"}}],"deployments":[{"_id":"859609","name":"PE21-18","synonyms":["Microbial DO respir"],"dates":{"start":"2021-04-27T00:00:00.000Z","end":"2021-05-02T00:00:00.000Z"},"platform":{"_id":"54114","name":"R/V Pelican"},"chiefScientists":[{"id":"707009","name":"J. Cameron Thrash","role":"Chief Scientist"}]}],"funding":[{"_id":"783870","name":"OCE-1945279","fundingSource":{"_id":"355","name":"NSF Division of Ocean Sciences"},"url":"https://www.nsf.gov/awardsearch/show-award?AWD_ID=1945279"}],"instruments":[{"_id":"863950","name":"SeaBird 911 plus system","description":"The data was collected using a SeaBird 911 plus system with 12-12 liter Niskin bottles. The instruments included in the 911 plus suite are dual Temperature (SBE 3), dual Conductivity (SBE 4), and dual Oxygen (SBE 43) sensors. Additionally, the suite included an SBE 27 pH/Oxidation, Chelsea Aquatracka 3 Chl_a, and a Wetlabs CDOM.","type_id":"591","type_name":"CTD Sea-Bird SBE 911plus","type_desc":"The Sea-Bird SBE 911 plus is a type of CTD instrument package for continuous measurement of conductivity, temperature and pressure. The SBE 911 plus includes the SBE 9plus Underwater Unit and the SBE 11plus Deck Unit (for real-time readout using conductive wire) for deployment from a vessel. The combination of the SBE 9 plus and SBE 11 plus is called a SBE 911 plus. The SBE 9 plus uses Sea-Bird's standard modular temperature and conductivity sensors (SBE 3 plus and SBE 4). The SBE 9 plus CTD can be configured with up to eight auxiliary sensors to measure other parameters including dissolved oxygen, pH, turbidity, fluorescence, light (PAR), light transmission, etc.). more information from Sea-Bird Electronics","type_acronym":"CTD SBE 911plus"},{"_id":"863951","name":"Wetlabs CDOM","description":"","type_id":"484","type_name":"Fluorometer","type_desc":"A fluorometer or fluorimeter is a device used to measure parameters of fluorescence: its intensity and wavelength distribution of emission spectrum after excitation by a certain spectrum of light. The instrument is designed to measure the amount of stimulated electromagnetic radiation produced by pulses of electromagnetic radiation emitted into a water sample or in situ.","type_acronym":"Fluorometer"},{"_id":"863952","name":"12-12 liter Niskin bottles","description":"The data was collected using a SeaBird 911 plus system with 12-12 liter Niskin bottles. The instruments included in the 911 plus suite are dual Temperature (SBE 3), dual Conductivity (SBE 4), and dual Oxygen (SBE 43) sensors. Additionally, the suite included an SBE 27 pH/Oxidation, Chelsea Aquatracka 3 Chl_a, and a Wetlabs CDOM. Serial numbers and calibration information is stored in the Header Information included in the .cnv files.","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":"863953","name":"SBE 27 pH/Oxidation","description":"","type_id":"863352","type_name":"Sea-Bird SBE 27 pH/O.R.P. sensor","type_desc":"The SBE 27 pH and O.R.P. (Redox) sensor combines a pressure-balanced, glass-electrode, Ag/AgCl reference probe and platinum O.R.P. electrode to provide in-situ measurements at depths to 1200 m. The replaceable pH probe is permanently sealed and is supplied with a soaker bottle attachment that prevents the reference electrode from drying out during storage. The SBE 27 is intended for use as an add-on auxiliary sensor for profiling CTDs (SBE 9plus; SBE 19, 19plus, and 19plus V2 SeaCAT; and SBE 25 and 25plus Sealogger).","type_acronym":"SBE 27 pH/Oxidation sensor"},{"_id":"863954","name":"dual Oxygen sensor","description":"The data was collected using a SeaBird 911 plus system with 12-12 liter Niskin bottles. The instruments included in the 911 plus suite are dual Temperature (SBE 3), dual Conductivity (SBE 4), and dual Oxygen (SBE 43) sensors. Additionally, the suite included an SBE 27 pH/Oxidation, Chelsea Aquatracka 3 Chl_a, and a Wetlabs CDOM. Serial numbers and calibration information is stored in the Header Information included in the .cnv files.","type_id":"552","type_name":"Sea-Bird SBE 43 Dissolved Oxygen Sensor","type_desc":"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","type_acronym":"SBE-43 DO"},{"_id":"863955","name":"dual Temperature (SBE 3) sensor","description":"The data was collected using a SeaBird 911 plus system with 12-12 liter Niskin bottles. The instruments included in the 911 plus suite are dual Temperature (SBE 3), dual Conductivity (SBE 4), and dual Oxygen (SBE 43) sensors. Additionally, the suite included an SBE 27 pH/Oxidation, Chelsea Aquatracka 3 Chl_a, and a Wetlabs CDOM. Serial numbers and calibration information is stored in the Header Information included in the .cnv files.","type_id":"473","type_name":"Sea-Bird SBE-3 Temperature Sensor","type_desc":"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","type_acronym":"SBE-3 Temperature"},{"_id":"863956","name":"dual Conductivity (SBE 4) sensor","description":"The data was collected using a SeaBird 911 plus system with 12-12 liter Niskin bottles. The instruments included in the 911 plus suite are dual Temperature (SBE 3), dual Conductivity (SBE 4), and dual Oxygen (SBE 43) sensors. Additionally, the suite included an SBE 27 pH/Oxidation, Chelsea Aquatracka 3 Chl_a, and a Wetlabs CDOM. Serial numbers and calibration information is stored in the Header Information included in the .cnv files.","type_id":"474","type_name":"Sea-Bird SBE-4 Conductivity Sensor","type_desc":"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.","type_acronym":"SBE-4 Conductivity"},{"_id":"863957","name":"Chelsea Aquatracka 3 Chl_a","description":"","type_id":"721","type_name":"Turbidity Meter","type_desc":"A turbidity meter measures the clarity of a water sample. A beam of light is shown through a water sample. The turbidity, or its converse clarity, is read on a numerical scale. Turbidity determined by this technique is referred to as the nephelometric method from the root meaning \"cloudiness\". This word is used to form the name of the unit of turbidity, the NTU (Nephelometric Turbidity Unit). The meter reading cannot be used to compare the turbidity of different water samples unless the instrument is calibrated. Description from: http://www.gvsu.edu/wri/education/instructor-s-manual-turbidity-10.htm\r\n(One example is the Orion AQ4500 Turbidimeter)","type_acronym":"Turbidity Meter"}],"parameters":[{"_id":"864080","name":"cruise","format":"","frictionlessType":"string","description":"

Cruise identifier

","units":{"_id":"","name":"unitless"},"type":{"_id":"1102","name":"cruise_id","description":"

cruise designation; name

"}},{"_id":"864081","name":"station","format":"","frictionlessType":"string","description":"

Station identifier

","units":{"_id":"","name":"unitless"},"type":{"_id":"987","name":"station","description":"

Station identifier; a unique number or alphanumeric string designating a general geographic location at which one or more sampling activities may occur.

"}},{"_id":"864082","name":"cast_number","format":"","frictionlessType":"integer","description":"

CTD Cast number

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

cast or profile number

"}},{"_id":"864083","name":"latitude","format":"","frictionlessType":"number","description":"

Latitude, south is negative

","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":"864084","name":"longitude","format":"","frictionlessType":"number","description":"

Longitude, west is negative

","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":"864085","name":"ISO_DateTime_UTC","format":"%Y-%m-%dT%H:%M:%SZ","frictionlessType":"datetime","description":"

Cast date and time (UTC) in ISO 8601 format yyyy-mm-ddTHH:MM:SSZ

","units":{"_id":"","name":"unitless"},"type":{"_id":"1908","name":"ISO_DateTime_UTC","description":"

Date/Time (UTC) ISO formatted
\nThis standard is based on ISO 8601:2004(E) and takes on any of the following forms:
\n2009-08-30T09:05:00[.xx] (local time)
\n2009-08-30T14:05:00[.xx]Z (UTC time)
\n2009-08-30T14:05:00[.xx]-05:00
\nThe dashes and the colons can be dropped.
\nThe T can also be dropped \"by mutual agreement\", but one needs the trailing Z if the time is UTC.

Sample ISO_datetime_utc:
\n2009-08-30T14:05:00[.xx]Z (UTC time)

Format: YYYY-mm-ddTHH:MM:SS[.xx]Z (UTC time)

"}},{"_id":"864086","name":"depSM","format":"","frictionlessType":"number","description":"

Depth

","units":{"_id":"","name":"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":"864087","name":"t090C","format":"","frictionlessType":"number","description":"

Temperature

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

water temperature at measurement depth

"}},{"_id":"864088","name":"t190C","format":"","frictionlessType":"number","description":"

Temperature

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

water temperature at measurement depth

"}},{"_id":"864089","name":"c0mS_cm","format":"","frictionlessType":"number","description":"

Conductivity

","units":{"_id":"","name":"mS/cm"},"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":"864090","name":"c1mS_cm","format":"","frictionlessType":"number","description":"

Conductivity

","units":{"_id":"","name":"mS/cm"},"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":"864091","name":"sal00","format":"","frictionlessType":"number","description":"

Salinity

","units":{"_id":"","name":"PSU"},"type":{"_id":"955","name":"sal","description":"

Salinity: The amount (mass or quantity of matter) of salt per amount (volume or mass) of a body of water.

"}},{"_id":"864092","name":"sal11","format":"","frictionlessType":"number","description":"

Salinity

","units":{"_id":"","name":"PSU"},"type":{"_id":"955","name":"sal","description":"

Salinity: The amount (mass or quantity of matter) of salt per amount (volume or mass) of a body of water.

"}},{"_id":"864093","name":"sbeox0Mg_L","format":"","frictionlessType":"number","description":"

Oxygen

","units":{"_id":"","name":"mg/l"},"type":{"_id":"910","name":"dissolved Oxygen","description":"

dissolved oxygen concentration

"}},{"_id":"864094","name":"sbeox1Mg_L","format":"","frictionlessType":"number","description":"

Oxygent

","units":{"_id":"","name":"mg/l"},"type":{"_id":"910","name":"dissolved Oxygen","description":"

dissolved oxygen concentration

"}},{"_id":"864095","name":"flC","format":"","frictionlessType":"number","description":"

Fluoresence

","units":{"_id":"","name":"ug/l"},"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":"864096","name":"wetCDOM","format":"","frictionlessType":"number","description":"

Fluoresence

","units":{"_id":"","name":"ug/l"},"type":{"_id":"835","name":"fluorescence","description":"

Fluorescence. Indirect measure of pigment concentration.

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

"}},{"_id":"864097","name":"ph","format":"","frictionlessType":"number","description":"

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

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

"}},{"_id":"864098","name":"orp","format":"","frictionlessType":"number","description":"

Oxydation reduction potential

","units":{"_id":"","name":"mV"},"type":{"_id":"844733","name":"Oxidation_Reduction_Potential","description":"

The potential developed by a metallic electrode when placed in a solution containing a species in two different oxidation states.

"}},{"_id":"864099","name":"flag","format":"","frictionlessType":"string","description":"

flag

","units":{"_id":"","name":"unitless"},"type":{"_id":"1730","name":"flag","description":"

Data flag. Multiple uses which are dataset dependent. Some uses: data quality, collection occurrence or success, depth indicator. See dataset documentation for specific details

"}},{"_id":"864100","name":"file","format":"","frictionlessType":"string","description":"

file

","units":{"_id":"","name":"unitless"},"type":{"_id":"1073","name":"no_bcodmo_term","description":"

An association with a community-wide standard parameter has not yet been made.

"}}],"related_publications":[],"related_datasets":[{"_id":"859612","name":"PE21-18 Unbinned CTD","url":"","relation_type":"IsDerivedFrom","type_desc":"

The following pre-existing datasets were used to generate, or derive, the data on this page.

\n","relation_desc":"The binned ctd dataset (859606) is derived from the unbinned ctd dataset (859612). The binned dataset was averaged in bins of 0.5 meters. ","citation":"Thrash, J. C. (2021) Processed CTD data (unbinned) and station information for the PE21-18 Microbial DO respir cruise (15 total casts) aboard the R/V Pelican during April and May 2021. Biological and Chemical Oceanography Data Management Office (BCO-DMO). (Version 1) Version Date 2021-11-08 doi:10.26008/1912/bco-dmo.859612.1"}],"services":[{"grouping":"","items":[{"name":"View Data","description":"An in-browser view of the primary tabular data file","url":"https://www.bco-dmo.org/dataset/859606/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/859606/description","contentType":"text/html","actionType":"view"},{"name":"PDF","description":"A PDF of the HTML dataset metadata","url":"https://www.bco-dmo.org/dataset/859606/Dataset_description.pdf","contentType":"application/pdf","actionType":"download"},{"name":"ISO 19115-2 (NOAA Profile)","description":"","url":"https://www.bco-dmo.org/dataset/859606/iso","contentType":"application/xml","actionType":"download"}]}],"programs":[],"projects":[{"_id":"783867","name":"CAREER: Investigating aerobic microbial respiration dynamics in coastal hypoxia","acronym":"Coastal O2 Respir","description":"$1c"}],"archives":[{"id_value":"10.26008/1912/bco-dmo.859606.1","url":"https://doi.org/10.26008/1912/bco-dmo.859606.1","date_assigned":"2021-11-08","version_date":"2021-11-08","archiver":"Marine Biological Laboratory/Woods Hole Oceanographic Institution Library (MBLWHOI DLA)","archiver_id":"272"}],"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":261},"downloads":{"count":746}}},"fileId":"903466"}]