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Dataset Overview | National Centers for Environmental Information (NCEI)

Ice coverage, phytoplankton layer strength, and others collected from Twin Otter aircraft N57RF in Chukchi Sea and Beaufort Sea from 2017-07-18 to 2017-07-31 (NCEI Accession 0187514)

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We flew an oceanographic profiling lidar over sections of the Chukchi and Beaufort Seas during the last half of July, 2017. The lidar returns were processed to obtain ice coverage and to identify subsurface phytoplankton layers. The identified layers were further analyzed to obtain their scattering strength relative to the background water value, their depth, and their thickness. Additional, power spectral density functions of selected transects over Barrow Canyon were calculated to investigate turbulence levels within the canyon.
  • Cite as: Churnside, James; Marchbanks, Richard (2019). Ice coverage, phytoplankton layer strength, and others collected from Twin Otter aircraft N57RF in Chukchi Sea and Beaufort Sea from 2017-07-18 to 2017-07-31 (NCEI Accession 0187514). [indicate subset used]. NOAA National Centers for Environmental Information. Dataset. https://www.ncei.noaa.gov/archive/accession/0187514. Accessed [date].
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Distributor 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 2017-07-18 to 2017-07-31
Spatial Bounding Box Coordinates
West: -169
East: -148
South: 70
North: 75
Spatial Coverage Map
General Documentation
Associated Resources
Publication Dates
  • publication: 2019-04-24
Data Presentation Form Digital table - digital representation of facts or figures systematically displayed, especially in columns
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
Submission Package ID: MDXLTF
Purpose These data were collected to investigate the influence of melting ice on subsurface phytoplankton layers in the Arctic.
Use Limitations
  • accessLevel: Public
  • Distribution liability: NOAA and NCEI make no warranty, expressed or implied, regarding these data, nor does the fact of distribution constitute such a warranty. NOAA and NCEI cannot assume liability for any damages caused by any errors or omissions in these data. If appropriate, NCEI can only certify that the data it distributes are an authentic copy of the records that were accepted for inclusion in the NCEI archives.
Dataset Citation
  • Cite as: Churnside, James; Marchbanks, Richard (2019). Ice coverage, phytoplankton layer strength, and others collected from Twin Otter aircraft N57RF in Chukchi Sea and Beaufort Sea from 2017-07-18 to 2017-07-31 (NCEI Accession 0187514). [indicate subset used]. NOAA National Centers for Environmental Information. Dataset. https://www.ncei.noaa.gov/archive/accession/0187514. Accessed [date].
Cited Authors
Principal Investigators
Resource Providers
Publishers
Acknowledgments
  • Related Funding Agency: US DOC; NOAA; OAR; Earth System Research Laboratory
Theme keywords NODC DATA TYPES THESAURUS NODC OBSERVATION TYPES THESAURUS WMO_CategoryCode
  • oceanography
Global Change Master Directory (GCMD) Science Keywords Provider Keywords
  • PHYTOPLANKTON LAYER DEPTH
  • PHYTOPLANKTON LAYER STRENGTH
  • PHYTOPLANKTON LAYER THICKNESS
  • SPATIAL POWER SPECTRUM OF BACKSCATTER
Data Center keywords NODC SUBMITTING INSTITUTION NAMES THESAURUS
Platform keywords Provider Platform Names
  • Twin Otter Aircraft N57RF
Instrument keywords NODC INSTRUMENT TYPES THESAURUS Global Change Master Directory (GCMD) Instrument Keywords
Place keywords NODC SEA AREA NAMES THESAURUS Global Change Master Directory (GCMD) Location Keywords
Keywords NCEI ACCESSION NUMBER
Use Constraints
  • Cite as: Churnside, James; Marchbanks, Richard (2019). Ice coverage, phytoplankton layer strength, and others collected from Twin Otter aircraft N57RF in Chukchi Sea and Beaufort Sea from 2017-07-18 to 2017-07-31 (NCEI Accession 0187514). [indicate subset used]. NOAA National Centers for Environmental Information. Dataset. https://www.ncei.noaa.gov/archive/accession/0187514. Accessed [date].
Access Constraints
  • Use liability: NOAA and NCEI cannot provide any warranty as to the accuracy, reliability, or completeness of furnished data. Users assume responsibility to determine the usability of these data. The user is responsible for the results of any application of this data for other than its intended purpose.
Fees
  • In most cases, electronic downloads of the data are free. However, fees may apply for custom orders, data certifications, copies of analog materials, and data distribution on physical media.
Lineage information for: dataset
Processing Steps
  • 2019-04-24T20:26:23Z - NCEI Accession 0187514 v1.1 was published.
Output Datasets
Lineage information for: dataset
Processing Steps
  • Parameter or Variable: ICE - COVERAGE (measured); Units: unitless; Observation Category: other; Sampling Instrument: LIDAR; Sampling and Analyzing Method: Based on lidar surface return. Fraction of lidar pulses above a threshold value.Described in Churnside, J. H., and R. Marchbanks (2015), Sub-surface plankton layers in the Arctic Ocean, Geophys. Res. Lett., 42, 4896-4902. doi:10.1002/2015GL064503; Data Quality Method: Visual inspection of data for interference from low clouds and fog..
  • Parameter or Variable: PHYTOPLANKTON LAYER STRENGTH (measured); Units: unitless; Observation Category: other; Sampling Instrument: LIDAR; Sampling and Analyzing Method: Ratio of peak lidar return in a plankton layer to the average background return outside of the layer. Described in Churnside, J. H., and R. Marchbanks (2015), Sub-surface plankton layers in the Arctic Ocean, Geophys. Res. Lett., 42, 4896-4902. doi:10.1002/2015GL064503; Data Quality Method: Visual inspection of data for interference from low clouds and fog..
  • Parameter or Variable: PHYTOPLANKTON LAYER DEPTH (measured); Units: m; Observation Category: other; Sampling Instrument: LIDAR; Sampling and Analyzing Method: Depth of the peak lidar return within a layer. Described in Churnside, J. H., and R. Marchbanks (2015), Sub-surface plankton layers in the Arctic Ocean, Geophys. Res. Lett., 42, 4896-4902. doi:10.1002/2015GL064503; Data Quality Method: Visual inspection of data for interference from low clouds and fog..
  • Parameter or Variable: PHYTOPLANKTON LAYER THICKNESS (measured); Units: m; Observation Category: other; Sampling Instrument: LIDAR; Sampling and Analyzing Method: Full width at half maximum of lidar return from a layer. Described in Churnside, J. H., and R. Marchbanks (2015), Sub-surface plankton layers in the Arctic Ocean, Geophys. Res. Lett., 42, 4896-4902. doi:10.1002/2015GL064503; Data Quality Method: Visual inspection of data for interference from low clouds and fog..
  • Parameter or Variable: SPATIAL POWER SPECTRUM OF BACKSCATTER (measured); Units: A^2 km; Observation Category: other; Sampling Instrument: LIDAR; Sampling and Analyzing Method: Power spectral density of lidar return from constant depth along a straight segment of flight track with 2 m horizontal separation between samples.; Data Quality Method: Visual inspection of data for interference from low clouds and fog..
Acquisition Information (collection)
Instrument
  • LIDAR
Last Modified: 2023-01-26T13:46:59Z
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