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Physical and chemical data, surface observations, and bathythermograph observations taken by German vessels from 1972-02-26 to 1980-02-19 (NCEI Accession 8100437)

Metadata Updated: March 1, 2025

Ocean Station data containing Water depth and other data collected from ANTON DOHRN, ALKOR, FRIDTJOF NANSEN, GAUSS, FRIEDRICH HEINCKE, METEOR, POSEIDON, SOLEA, WALTHER HERWIG and Unknown platforms between February 26, 1972 and February 19, 1980. Data were collected by German Federal Research Center for Fisheries, Deutsches Ozeanographisches Datenzentrum and National Oceanographic Data Center. Data was submitted by the German Oceanographic Data Center. Data processed by NODC is available in C100 Ocean Station Data, C116 Bathythermograph XBT and C128 Bathythermograph MBT format.

The Oceanographic Station Data (C100) format contains physical-chemical oceanographic data recorded at discrete depth levels. Most of the observations were made using multi-bottle Nansen casts or other types of water samplers. A small amount (about 5 percent) were obtained using electronic CTD (conductivity-temperature-depth) or STD (salinity-temperature-depth) recorders. The CTD/STD data were reported to NODC at depth levels equivalent to Nansen cast data, however, and have been processed and stored the same as the Nansen data. Cruise information (e.g., ship, country, institution), position, date, and time, and reported for each station. The principal measured parameters and temperature and salinity, but dissolved oxygen, phosphate, total phosphorus, silicate, nitrate, nitrite, and pH may be reported. Meteorological conditions at the time of the cast (e.g., air temperature and pressure, wind, waves) may also be reported, as well as auxiliary data such as water color (Forel-Ule scale), water transparency (Secchi disk depth), and depth to bottom. Values of density (sigma-t) sound velocity, and dynamic depth anomaly are computed from measured parameters. Each station contains the measurements taken at the observed depth levels, but also includes data values interpolated to a set of standard depth levels.

The C116/C118 format contains temperature-depth profile data obtained using expendable bathythermograph (XBT) instruments. Cruise information, position, date and time were reported for each observation. The data record was comprised of pairs of temperature-depth values. Unlike the MBT Data File, in which temperature values were recorded at uniform 5 m intervals, the XBT data files contained temperature values at non-uniform depths. These depths were recorded at the minimum number of points ("inflection points") required to accurately define the temperature curve. Standard XBTs can obtain profiles to depths of either 450 or 760 m. With special instruments, measurements can be obtained to 1830 m. Prior to July 1994, XBT data were routinely processed to one of these standard types. XBT data are now processed and loaded directly in to the NODC Ocean Profile Data Base (OPDB). Historic data from these two data types were loaded into the OPDB.

The C128 format is used for temperature-depth profile data obtained using the mechanical bathythermograph (MBT) instrument. The maximum depth of MBT observations is approximately 285 m. Therefore, MBT data are useful only in studying the thermal structure of the upper layers of the ocean. Cruise information, date, position, and time are reported for each observation. The data record comprises pairs of temperature-depth values. Temperature data in this file are recorded at uniform 5 m depth intervals.

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.

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Dates

Metadata Date 2025-02-03T19:48:20Z
Metadata Created Date December 4, 2020
Metadata Updated Date March 1, 2025
Reference Date(s) November 19, 2002 (publication), February 6, 2023 (revision)
Frequency Of Update asNeeded

Metadata Source

Harvested from NOAA/NESDIS/ncei/accessions

Graphic Preview

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Additional Metadata

Resource Type Dataset
Metadata Date 2025-02-03T19:48:20Z
Metadata Created Date December 4, 2020
Metadata Updated Date March 1, 2025
Reference Date(s) November 19, 2002 (publication), February 6, 2023 (revision)
Responsible Party (Point of Contact)
Contact Email
Guid gov.noaa.nodc:8100437
Access Constraints Cite as: Kohnke, Dieter; German Oceanographic Data Center (2002). Physical and chemical data, surface observations, and bathythermograph observations taken by German vessels from 1972-02-26 to 1980-02-19 (NCEI Accession 8100437). [indicate subset used]. NOAA National Centers for Environmental Information. Dataset. https://www.ncei.noaa.gov/archive/accession/8100437. 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 19.98
Bbox North Lat 70.6
Bbox South Lat -67.02
Bbox West Long -128.67
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:8100437
Graphic Preview Type PNG
Harvest Object Id bd5507c6-f469-452c-a4eb-8730e140a4a0
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": [[[-128.67, -67.02], [19.98, -67.02], [19.98, 70.6], [-128.67, 70.6], [-128.67, -67.02]]]}
Progress completed
Spatial Data Service Type
Spatial Reference System
Spatial Harvester True
Temporal Extent Begin 1972-02-26
Temporal Extent End 1980-02-19

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