Water temperature, salinity, nutrient samples, and other data taken by CTD and Niskin bottles from the fishing vessel Aquila, cruise AQ16-01, in the Bering, Chukchi, and Beaufort Seas from 2016-09-04 to 2016-09-29 (NCEI Accession 0281203)
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title: Water temperature, salinity, nutrient samples, and other data taken by CTD and Niskin bottles from the fishing vessel Aquila, cruise AQ16-01, in the Bering, Chukchi, and Beaufort Seas from 2016-09-04 to 2016-09-29 (NCEI Accession 0281203)
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abstract: This CTD and Niskin bottles data set, consisting of 71 casts, was collected in the Chukchi Sea from the F/V Aquila (AQ16-01, September 4 - 29, 2016) within the Arctic Long-Term Integrated Mooring Array (ALTIMA) area. The cruise was funded by NOAA’s Office of Oceanic and Atmospheric Research (OAR), with supplemental funding from the Bureau of Ocean Energy Management (BOEM) through the Arctic Whale Ecology Study (ARCWEST). These data add to long-term datasets begun under several BOEM initiatives (see “Purpose”). CTD operations on this cruise were managed by EcoFOCI personnel from NOAA/PMEL. Profile data from CTD instruments were processed at NOAA/PMEL/EcoFOCI using standard techniques. Data from bottle samples include phosphate, silicate, nitrate, nitrite and ammonium. Profile data are averaged to a 1-meter grid, with missing data listed as NaN. Salinity was calculated (PSS-78), from conductivity and temperature (ITS90). Sigma-t was calculated from primary temperature and salinity. Nutrient samples were analyzed according to the methods of Gordon et al, 1993 and Mantoura, Woodward, 1983 (see references below). Samples were collected in 50 ml high-density polyethylene bottles that were rinsed first with 10% HCl prior to each station, and rinsed at least three times with sample before filling. Some samples were refrigerated for 3-12 hours prior to analysis, and some frozen for later analysis. CTD data contact: Phyllis Stabeno, Peggy Sullivan, Shaun Bell, Calvin Mordy (nutrients). This cruise was conducted by NOAA/OAR, NMML, AFSC, BOEM, PMEL and EcoFOCI participants. Data are in CSV format. Longitudes are in deg_west.
purpose: The 2016 Arctic Long-Term Integrated Mooring Array (ALTIMA) cruise, Nome to Dutch Harbor, Alaska, took place on board the F/V Aquila, September 4 - 29, 2016. This cruise was funded by NOAA’s Office of Oceanic and Atmospheric Research (OAR), with supplemental funding from the Bureau of Ocean Energy Management (BOEM) through the Arctic Whale Ecology Study (ARCWEST). Data collection added to long-term datasets initiated under several BOEM-funded studies: North Pacific Right Whale (PRIEST), Bowhead Feeding Ecology Study (BOWFEST), Chukchi Acoustics, Oceanography, and Zooplankton study (CHAOZ), the CHAOZ-Extension study (CHAOZ-X), and ARCWEST. The ALTIMA cruise was a multi-disciplinary effort to monitor marine mammals and seabirds and the ecosystem of the Chukchi Sea in order to understand the mechanisms responsible for high biological activity in the region, in order to predict, in a qualitative way, the effects of climate change on these preferred habitats.
credit: Related Funding Agency: US DOI; Bureau of Ocean Energy Management (BOEM): ARCWEST, CHAOZ, CHAOZ-X.
credit: Related Funding Agency: NOAA, Office of Oceanic and Atmospheric Research (OAR)
credit: Related Funding Agency: US DOC; NOAA; NMFS; Alaska Fisheries Science Center; Marine Mammal Laboratory
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keyword: Biospherical Licor Chelsea Sensor
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Anchor: https://vocab.ices.dk/services/pox/GetCodeDetail/SHIPC/33Z6 AQUILA (call sign: WCS6941, ICES code: 33Z6, 2004)
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title: Gordon, L.I., Jennings, J.C., Jr., Ros, A.A. and Krest, J.M., 1993. A suggested protocol for continuous flow automated analysis of seawater nutrients (Phosphate, nitrate, nitrite and silicic acid) in the WOCE Hydrographic Program and the Joint Global Ocean fluxes Study. WOCE Operations Manual, Part 3.1.3 "WHP Operations and Methods" (WOCE Hydrographic Program Office, Methods Manual 91-1) Bundesamt fur Seeschiffahrt und Hydrographie, Postfach 30 12 20, 2000 Hamburg 36 Germany.
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description: Parameter or Variable: WATER TEMPERATURE - channel 1 (measured); Units: degrees C; Observation Category: in situ; Sampling Instrument: SeaBird SBE-911plus CTD; Sampling and Analyzing Method: At each CTD location, the rosette was lowered to 10 meters to equilibrate, brought to surface, then deployed to a close-to-bottom depth, at a rate of ~30m/minute, and ~50m/minute below ~150 meters depth. Profiles were collected on the downcast using dual SeaBird temperature sensors calibrated to ITS-90 temperature.; Data Quality Method: Data were processed and calibrations applied using SeaBird Seasoft software and pre- and post-cruise calibration data. Post-processing at PMEL included filtering extreme outliers and extrapolation of top 3-10 meters to the surface. Each cast was visually reviewed for reasonableness, density inversions (greater than 0.02 sigma-t) caused by spurious measurements, and comparison of dual temperature and conductivity sensor data. Profile data were bin-averaged to 1 meter..
processStep: (LE_ProcessStep)
description: Parameter or Variable: SALINITY - channel 1 (measured); Units: psu; Observation Category: in situ; Sampling Instrument: SeaBird SBE-911plus CTD; Sampling and Analyzing Method: At each CTD location, the rosette was lowered to 10 meters to equilibrate, brought to surface, then deployed to a close-to-bottom depth, at a rate of ~30m/minute, and ~50m/minute below ~150 meters depth. Profiles were collected on the downcast using dual Seabird conductivity probes. Bottle salt samples were collected every second or third cast for calibration. Salinity was calculated (PSS-78), from conductivity and temperature (ITS90).; Data Quality Method: Data were processed and calibrations applied using SeaBird Seasoft software and pre- and post-cruise calibration data. Post-processing at PMEL included filtering extreme outliers and extrapolation of top 3-10 meters to the surface. Each cast was visually reviewed for reasonableness, density inversions (greater than 0.02 sigma-t) caused by spurious measurements, and comparison of dual sensor data. Profile data were bin-averaged to 1 meter..
processStep: (LE_ProcessStep)
description: Parameter or Variable: SIGMA-T - channel 1, (calculated); Units: kg/m^3; Observation Category: in situ; Sampling Instrument: SeaBird SBE-911plus CTD; Sampling and Analyzing Method: Sigma-T was calculated from primary salinity and temperature data using SeaBird Seasoft processing software.; Data Quality Method: See descriptions for temperature and salinity data. Post-processing at PMEL includes filtering extreme outliers and extrapolation of top 3-10 meters to the surface. Each cast is visually reviewed for reasonableness, density inversions (greater than 0.02 sigma-t) caused by spurious measurements, and comparison of dual temperature and salinity (from conductivity sensor) data. Profile data are bin-averaged to 1 meter..
processStep: (LE_ProcessStep)
description: Parameter or Variable: Water Temperature - channel 2 (measured); Units: degrees C; Observation Category: in situ; Sampling Instrument: Seabird SBE 911plus; Sampling and Analyzing Method: At each CTD location, the rosette was lowered to 10 meters to equilibrate, brought to surface, then deployed to a close-to-bottom depth, at a rate of ~30m/minute, and ~50m/minute below ~150 meters depth. Profiles were collected on the downcast using dual SeaBird temperature sensors calibrated to ITS-90 temperature.; Data Quality Method: Data were processed and calibrations applied using SeaBird Seasoft software. Post-processing at NOAA/PMEL included filtering extreme outliers and extrapolation of top 3-10 meters to the surface as needed. Each cast was visually reviewed for reasonableness, density inversions (greater than 0.02 sigma-t) caused by spurious measurements, and comparison of dual temperature and conductivity sensor data. Profile data were bin-averaged to 1 meter..
processStep: (LE_ProcessStep)
description: Parameter or Variable: Salinity - channel 2 (calculated); Units: unitless; Observation Category: in situ; Sampling Instrument: Seabird SBE 911plus; Sampling and Analyzing Method: Sampling and Analyzing Method: At each CTD location, the rosette was lowered to 10 meters to equilibrate, brought to surface, then deployed to a close-to-bottom depth, at a rate of ~30m/minute, and ~50m/minute below ~150 meters depth. Profiles were collected on the downcast using dual Seabird conductivity probes. Bottle salt samples were collected every second or third cast for calibration. Salinity was calculated (PSS-78), from conductivity and temperature (ITS90).; Data Quality Method: Data were processed and calibrations applied using SeaBird Seasoft software and pre- and post-cruise calibration data. Post-processing at PMEL included filtering extreme outliers and extrapolation of top 3-10 meters to the surface. Each cast was visually reviewed for reasonableness, density inversions (greater than 0.02 sigma-t) caused by spurious measurements, and comparison of dual sensor data. Profile data were bin-averaged to 1 meter..
processStep: (LE_ProcessStep)
description: Parameter or Variable: PHOTOSYNTHETIC ACTIVE RADIATION (PAR) (measured); Units: microEinsteins/M^2 S; Observation Category: in situ; Sampling Instrument: Biospherical Licor Chelsea Sensor; Sampling and Analyzing Method: Data were collected via CTD platform using a SeaBird 911plus and attached Biospherical Licor Chelsea sensor. At each CTD location, the rosette was lowered to 10 meters to equilibrate, brought to surface, then deployed to a close-to-bottom depth, at a rate of ~30m/minute, and ~50m/minute below ~150 meters depth. Water bottles were fired at desired depths on the upcast. PAR data are from CTD downcast.; Data Quality Method: Data were processed and calibrations applied using SeaBird Seasoft CTD software. Post-processing at PMEL included filtering extreme outliers and extrapolation of top 3-10 meters to the surface. Each cast was visually reviewed for reasonableness and spurious measurements. Profile data were bin-averaged to 1 meter..
processStep: (LE_ProcessStep)
description: Parameter or Variable: Silicate Concentration (measured); Units: micromole/kilogram; Observation Category: in situ; Sampling Instrument: Niskin bottle, SeaBird SBE-911plus CTD; Sampling and Analyzing Method: Data were collected via CTD platform using a SeaBird 911plus (Seasave software, version 7.20c). At each CTD location, the rosette was lowered to 10 meters to equilibrate, brought to surface, then deployed to a close-to-bottom depth, at ~30m/minute down to 150 m (on average) and ~50m/minute below that. Water bottles were fired at desired depths on the upcast. Ascent was at the same or faster rate. Once on board, these water samples were taken from Niskin bottles.; Data Quality Method: Nutrient samples were analyzed according to the methods of Gordon, et al. Samples were collected in 50 ml high-density polyethylene bottles that were rinsed first with 10% HCl prior to each station, and rinsed at least three times with sample before filling. Some samples were refrigerated for 3-12 hours prior to analysis, and some frozen for later analysis. Reference: Gordon, L.I., Jennings, J.C., Jr., Ros, A.A. and Krest, J.M., 1993. A suggested protocol for continuous flow automated analysis of seawater nutrients (Phosphate, nitrate, nitrite and silicic acid) in the WOCE Hydrographic Program and the Joint Global Ocean fluxes Study. WOCE Operations Manual, Part 3.1.3 "WHP Operations and Methods" (WOCE Hydrographic Program Office, Methods Manual 91-1) Bundesamt für Seeschiffahrt und Hydrographie, Postfach 30 12 20, 2000 Hamburg 36 Germany..
processStep: (LE_ProcessStep)
description: Parameter or Variable: Phosphate Concentration (measured); Units: micromole/kilogram; Observation Category: in situ; Sampling Instrument: Niskin bottle, SeaBird SBE-911plus CTD; Sampling and Analyzing Method: Data were collected via CTD platform using a SeaBird 911plus (Seasave software, version 7.20c). At each CTD location, the rosette was lowered to 10 meters to equilibrate, brought to surface, then deployed to a close-to-bottom depth, at ~30m/minute down to 150 m (on average) and ~50m/minute below that. Water bottles were fired at desired depths on the upcast. Ascent was at the same or faster rate. Once on board, these water samples were taken from Niskin bottles.; Data Quality Method: Nutrient samples were analyzed according to the methods of Gordon, et al. Samples were collected in 50 ml high-density polyethylene bottles that were rinsed first with 10% HCl prior to each station, and rinsed at least three times with sample before filling. Some samples were refrigerated for 3-12 hours prior to analysis, and some frozen for later analysis. Reference: Gordon, L.I., Jennings, J.C., Jr., Ros, A.A. and Krest, J.M., 1993. A suggested protocol for continuous flow automated analysis of seawater nutrients (Phosphate, nitrate, nitrite and silicic acid) in the WOCE Hydrographic Program and the Joint Global Ocean fluxes Study. WOCE Operations Manual, Part 3.1.3 "WHP Operations and Methods" (WOCE Hydrographic Program Office, Methods Manual 91-1) Bundesamt für Seeschiffahrt und Hydrographie, Postfach 30 12 20, 2000 Hamburg 36 Germany..
processStep: (LE_ProcessStep)
description: Parameter or Variable: Nitrate Concentration (measured); Units: micromole/kilogram; Observation Category: in situ; Sampling Instrument: Niskin bottle, SeaBird SBE-911plus CTD; Sampling and Analyzing Method: Niskin bottle, SeaBird SBE-911plus CTD Sampling and Analyzing Method: Data were collected via CTD platform using a SeaBird 911plus (Seasave software, version 7.20c). At each CTD location, the rosette was lowered to 10 meters to equilibrate, brought to surface, then deployed to a close-to-bottom depth, at ~30m/minute down to 150 m (on average) and ~50m/minute below that. Water bottles were fired at desired depths on the upcast. Ascent was at the same or faster rate. Once on board, these water samples were taken from Niskin bottles.; Data Quality Method: Nutrient samples were analyzed according to the methods of Gordon, et al. Samples were collected in 50 ml high-density polyethylene bottles that were rinsed first with 10% HCl prior to each station, and rinsed at least three times with sample before filling. Some samples were refrigerated for 3-12 hours prior to analysis, and some frozen for later analysis. Reference: Gordon, L.I., Jennings, J.C., Jr., Ros, A.A. and Krest, J.M., 1993. A suggested protocol for continuous flow automated analysis of seawater nutrients (Phosphate, nitrate, nitrite and silicic acid) in the WOCE Hydrographic Program and the Joint Global Ocean fluxes Study. WOCE Operations Manual, Part 3.1.3 "WHP Operations and Methods" (WOCE Hydrographic Program Office, Methods Manual 91-1) Bundesamt für Seeschiffahrt und Hydrographie, Postfach 30 12 20, 2000 Hamburg 36 Germany..
processStep: (LE_ProcessStep)
description: Parameter or Variable: Nitrite Concentration (measured); Units: micromole/kilogram; Observation Category: in situ; Sampling Instrument: Niskin bottle, SeaBird SBE-911plus CTD; Sampling and Analyzing Method: Niskin bottle, SeaBird SBE-911plus CTD Sampling and Analyzing Method: Data were collected via CTD platform using a SeaBird 911plus (Seasave software, version 7.20c). At each CTD location, the rosette was lowered to 10 meters to equilibrate, brought to surface, then deployed to a close-to-bottom depth, at ~30m/minute down to 150 m (on average) and ~50m/minute below that. Water bottles were fired at desired depths on the upcast. Ascent was at the same or faster rate. Once on board, these water samples were taken from Niskin bottles.; Data Quality Method: Nutrient samples were analyzed according to the methods of Gordon, et al. Samples were collected in 50 ml high-density polyethylene bottles that were rinsed first with 10% HCl prior to each station, and rinsed at least three times with sample before filling. Some samples were refrigerated for 3-12 hours prior to analysis, and some frozen for later analysis. Reference: Gordon, L.I., Jennings, J.C., Jr., Ros, A.A. and Krest, J.M., 1993. A suggested protocol for continuous flow automated analysis of seawater nutrients (Phosphate, nitrate, nitrite and silicic acid) in the WOCE Hydrographic Program and the Joint Global Ocean fluxes Study. WOCE Operations Manual, Part 3.1.3 "WHP Operations and Methods" (WOCE Hydrographic Program Office, Methods Manual 91-1) Bundesamt für Seeschiffahrt und Hydrographie, Postfach 30 12 20, 2000 Hamburg 36 Germany..
processStep: (LE_ProcessStep)
description: Parameter or Variable: Ammonium concentration (measured); Units: micromole/kilogram; Observation Category: in situ; Sampling Instrument: Niskin bottle, SeaBird SBE-911plus CTD; Sampling and Analyzing Method: Niskin bottle, SeaBird SBE-911plus CTD Sampling and Analyzing Method: Data were collected via CTD platform using a SeaBird 911plus (Seasave software, version 7.20c). At each CTD location, the rosette was lowered to 10 meters to equilibrate, brought to surface, then deployed to a close-to-bottom depth, at ~30m/minute down to 150 m (on average) and ~50m/minute below that. Water bottles were fired at desired depths on the upcast. Ascent was at the same or faster rate. Once on board, these water samples were taken from Niskin bottles.; Data Quality Method: Nutrient samples were analyzed according to the methods of Gordon, et al. Samples were collected in 50 ml high-density polyethylene bottles that were rinsed first with 10% HCl prior to each station, and rinsed at least three times with sample before filling. Some samples were refrigerated for 3-12 hours prior to analysis, and some frozen for later analysis. Reference: Gordon, L.I., Jennings, J.C., Jr., Ros, A.A. and Krest, J.M., 1993. A suggested protocol for continuous flow automated analysis of seawater nutrients (Phosphate, nitrate, nitrite and silicic acid) in the WOCE Hydrographic Program and the Joint Global Ocean fluxes Study. WOCE Operations Manual, Part 3.1.3 "WHP Operations and Methods" (WOCE Hydrographic Program Office, Methods Manual 91-1) Bundesamt für Seeschiffahrt und Hydrographie, Postfach 30 12 20, 2000 Hamburg 36 Germany..
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metadataMaintenance: (MD_MaintenanceInformation)
maintenanceAndUpdateFrequency: (MD_MaintenanceFrequencyCode) asNeeded
maintenanceNote: Metadata are developed, maintained and distributed by NCEI. Updates are performed as needed to maintain currentness.
contact: (CI_ResponsibleParty)
organisationName: NOAA National Centers for Environmental Information
role: (CI_RoleCode) custodian
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acquisitionInformation: (MI_AcquisitionInformation)
instrument: (MI_Instrument)
identifier: (MD_Identifier)
code: CTD
type: CTD
description: Conductivity-Temperature-Depth probe
instrument: (MI_Instrument)
identifier: (MD_Identifier)
code: Niskin bottle
type: Niskin bottle
description: Device for obtaining samples of seawater at a specific depth Why special entry for Niskin bottle but no entry for Nansen bottle?
platform: (MI_Platform)
identifier: (MD_Identifier)
code: Aquila
description: Updated information from ICES for the vessel AQUILA from US: UNITED STATES. Name : AQUILA Country(s) : US: UNITED STATES (ISO Country Code) Platform Class : 36: Fishing vessel Call Sign : WCS6941 MMSI: 367494000 IMO : 7127704 Commissioned Date : 2004-05 Current Length : 50 Built : 1971 Previous Name (Notes): ILLUSION WOD Code: 11544 Notes : Built as a platform supply vessel BESSIE CANDIES, converted to a trawler in 1991 as NORPOL PRODUCER, became ILLUSION in 1994, became AQUILA in 2004 Information Sources: - https://www.marinetraffic.com/en/ais/details/ships/shipid:447542/mmsi:367494000/imo:7127704/vessel:AQUILA - http://www.shipspotting.com/gallery/photo.php?lid=1501501 - http://www.shipspotting.com/gallery/photo.php?lid=2728304 - https://www.st.nmfs.noaa.gov/pls/webpls/cgv_pkg.vessel_id_list?vessel_id_in=536823 General Comments: Confirmed in Miramar Not in ITU with this call sign Confirmed by NOAA on 2018-08-31 (FY2018). Submitted to ICES 2018-02-13
instrument: (missing)