Skip to main content
U.S. flag

An official website of the United States government

Official websites use .gov
A .gov website belongs to an official government organization in the United States.

Secure .gov websites use HTTPS
A lock ( ) or https:// means you’ve safely connected to the .gov website. Share sensitive information only on official, secure websites.

Skip to content

Try the next-generation Data Catalog at catalog-beta.data.gov and help shape it with your feedback.

  • Feedback

    • Water temperature, primary productivity-phytoplankton, chlorophyll-a concentration, and other data collected by CTD, scintillation counter, fluorometer, and other instruments from Arctic Ocean from 1959-08-03 to 2011-10-21 (NCEI Accession 0161176)

    Metadata Updated: February 1, 2026

    Arctic Ocean net primary productivity (NPP) was assembled for 1959-2011 from existing databases and recent polar research cruises. At each NPP station, if available, other data such as Chl-a, nitrate, and nitrite concentrations, mixed layer depth (MLD), SST, and euphotic layer depth were included. The data were obtained between 65 and 89°N mainly from late spring to early fall. At each station, NPP was measured at various depths using 13C- or 14C-labeled compounds. Surface fluorometric Chl-a concentration and SST were estimated from measurements between 0 and 5 m depth. MLD was estimated from CTD profiles using 0a threshold criterion. Nitrate and nitrite concentrations were measured only in the upper 100 m. Sponsored by the NASA through the Primary Productivity Algorithm Round Robin activity (PPARR) program. Data were provided in xlsx format and converted by NCEI to csv format.

    Access & Use Information

    License: No license information was provided. If this work was prepared by an officer or employee of the United States government as part of that person's official duties it is considered a U.S. Government Work.

    Downloads & Resources

    Dates

    Metadata Date 2024-09-17T19:42:14Z
    Metadata Created Date December 4, 2020
    Metadata Updated Date February 1, 2026
    Reference Date(s) March 6, 2018 (publication), February 27, 2017 (creation)
    Frequency Of Update asNeeded

    Metadata Source

    Harvested from NOAA/NESDIS/ncei/accessions

    Other Data Resources

    Graphic Preview

    Preview graphic

    Additional Metadata

    Resource Type Dataset
    Metadata Date 2024-09-17T19:42:14Z
    Metadata Created Date December 4, 2020
    Metadata Updated Date February 1, 2026
    Reference Date(s) March 6, 2018 (publication), February 27, 2017 (creation)
    Responsible Party (Point of Contact)
    Contact Email
    Guid gov.noaa.nodc:0161176
    Access Constraints Cite as: Lee, Younjoo J.; Matrai, Patricia A.; Friedrichs, Marjorie A. M.; Saba, Vincent S.; Ardyna, Mathieu; Babin, Marcel; Gosselin, Michel; Hirawake, Toru; Kang, Sung-Ho; Lee, Sang H. (2018). Water temperature, primary productivity-phytoplankton, chlorophyll-a concentration, and other data collected by CTD, scintillation counter, fluorometer, and other instruments from Arctic Ocean from 1959-08-03 to 2011-10-21 (NCEI Accession 0161176). [indicate subset used]. NOAA National Centers for Environmental Information. Dataset. https://www.ncei.noaa.gov/archive/accession/0161176. Accessed [date]., 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.
    Bbox East Long 180
    Bbox North Lat 88.92
    Bbox South Lat 65.02
    Bbox West Long -180
    Coupled Resource
    Frequency Of Update asNeeded
    Graphic Preview Description Preview graphic
    Graphic Preview File https://www.ncei.noaa.gov/access/metadata/landing-page/bin/gfx?id=gov.noaa.nodc:0161176
    Graphic Preview Type PNG
    Harvest Object Id d5522895-4539-454d-a731-a10e8e9c6b5b
    Harvest Source Id c084a438-6f6b-470d-93e0-16aeddb9f513
    Harvest Source Title NOAA/NESDIS/ncei/accessions
    Licence accessLevel: Public
    Lineage
    Metadata Language eng
    Metadata Type geospatial
    Old Spatial {"type": "Polygon", "coordinates": [[[-180.0, 65.02], [180.0, 65.02], [180.0, 88.92], [-180.0, 88.92], [-180.0, 65.02]]]}
    Progress completed
    Spatial Data Service Type
    Spatial Reference System
    Spatial Harvester True
    Temporal Extent Begin 1959-08-03
    Temporal Extent End 2011-10-21

    Didn't find what you're looking for? Suggest a dataset here.