Size fractionated Particulate Carbon Flux 100-500m measured by autonomous Carbon Flux Explorers deployed during the CCE-LTER process study (P1706) between June 2 and July 1, 2017 in the California Current Regime (NCEI Accession 0278677)
This dataset contains optical and physical data collected on R/V Roger Revelle during cruise RR1710 in the North Pacific Ocean from 2017-06-02 to 2017-07-01. These data include beam attenuation, salinity calculated from CTD primary sensors, and water pressure. The instruments used to collect these data include Carbon Flux Explorer. These data were collected by James K.B. Bishop of University of California-Berkeley as part of the "California Current Ecosystem Long Term Ecological Research site (CCE LTER)", "Carbon Flux Explorer Development (C-SNOW Development)", and "Carbon Sedimentation In the Ocean Watercolumn (C-SNOW): Calibration (C-SNOW)" projects and "Long Term Ecological Research network (LTER)" and "Ocean Carbon and Biogeochemistry (OCB)" programs. The Biological and Chemical Oceanography Data Management Office (BCO-DMO) submitted these data to NCEI on 2020-09-29.
The following is the text of the dataset description provided by BCO-DMO:
Dataset Description:
Size fractionated Particulate Carbon Flux 100-500m measured by autonomous Carbon Flux Explorers deployed from R/V Roger Revelle (RR1701), CCE-LTER process study (P1706), between June 2 and July 1, 2017 in the California Current Regime.
These data will be submitted with the following manuscript:
Hannah L. Bourne, James K. B. Bishop, Elizabeth J. Connors, Todd J. Wood. Carbon Export and Fate Beneath a Dynamic Upwelled Filament off the California Coast.
The following is the text of the dataset description provided by BCO-DMO:
Dataset Description:
Size fractionated Particulate Carbon Flux 100-500m measured by autonomous Carbon Flux Explorers deployed from R/V Roger Revelle (RR1701), CCE-LTER process study (P1706), between June 2 and July 1, 2017 in the California Current Regime.
These data will be submitted with the following manuscript:
Hannah L. Bourne, James K. B. Bishop, Elizabeth J. Connors, Todd J. Wood. Carbon Export and Fate Beneath a Dynamic Upwelled Filament off the California Coast.
Dataset Citation
- Cite as: Bishop, James K.B. (2023). Size fractionated Particulate Carbon Flux 100-500m measured by autonomous Carbon Flux Explorers deployed during the CCE-LTER process study (P1706) between June 2 and July 1, 2017 in the California Current Regime (NCEI Accession 0278677). [indicate subset used]. NOAA National Centers for Environmental Information. Dataset. https://www.ncei.noaa.gov/archive/accession/0278677. Accessed [date].
Dataset Identifiers
ISO 19115-2 Metadata
gov.noaa.nodc:0278677
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Ordering Instructions | Contact NCEI for other distribution options and instructions. |
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NOAA National Centers for Environmental Information +1-301-713-3277 NCEI.Info@noaa.gov |
Dataset Point of Contact |
NOAA National Centers for Environmental Information ncei.info@noaa.gov |
Time Period | 2017-06-02 to 2017-07-01 |
Spatial Bounding Box Coordinates |
West: -123.148
East: -121.128
South: 34.073
North: 35.074
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Dataset Progress Status | Complete - production of the data has been completed Historical archive - data has been stored in an offline storage facility |
Data Update Frequency | As needed |
Supplemental Information | Acquisition Description: To understand the vertical variations of carbon fluxes in biologically productive waters, four autonomous Carbon Flux Explorers (CFEs) and ship-lowered CTD-interfaced particle-sensitive transmissometer and scattering sensors were deployed in a filament of offshore flowing recently upwelled water during the June 2017 California Current Ecosystem – Long Term Ecological Research process study. The Lagrangian CFEs operating at depths from 100-500 m yielded carbon flux and its partitioning with size from 30 µm –1 cm at three intense study locations within the filament and at a location outside the filament. The Carbon Flux Explorer (CFE) dives below the surface make particle flux observations at target depths as it drifts with currents. The Optical Sedimentation Recorder (OSR) wakes once the CFE has reached the target depth. On first wake-up of a given CFE dive, the sample stage is flushed with water and images of the particle-free stage are obtained. Particles settle through a 1-cm opening hexagonal celled light baffle into a high-aspect ratio funnel assembly before landing on a 2.54 cm diameter glass sample stage. At 25-minute intervals, particles are imaged at 13 µm pixel resolution in three lighting modes: dark field, transmitted and transmitted-cross polarized. Sampling procedures described in Bourne et al., 2019 and Bishop et al., 2016. Different particle classes (anchovy pellets, copepod pellets and >1000 µm aggregates) dominated the 100-150 m fluxes during successive stages of the filament evolution as it progressed offshore. Fluxes were very high at all locations in the filament; below 150 m, flux was invariant or increased with depth at the two locations closer to the coast. Martin curve ‘b’ factors for total particulate carbon flux were +0.1, +0.87, -0.27, and -0.39 at the three successively occupied locations within the plume, and in transitional waters, respectively. Particle transfer efficiencies between 100 to 500 m were far greater within both filament and California Current waters than calculated using a classic Martin ‘b’ factor of -0.86. Interestingly, the flux profiles for all particles <400 µm were a much closer fit to Martin; however, most (typically >90%) of particle flux was carried by >1000 µm sized aggregates. Mechanisms to explain a factor of three flux increase between 150 and 500 m at the mid plume location are investigated. |
Purpose | This dataset is available to the public for a wide variety of uses including scientific research and analysis. |
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Last Modified: 2024-05-31T15:15:28Z
For questions about the information on this page, please email: ncei.info@noaa.gov
For questions about the information on this page, please email: ncei.info@noaa.gov