Data · collection
An Internally Consistent Dataset of Del13C-DIC Data in the North Atlantic Ocean (NCEI Accession 0164569)
Listed in NASA Earthdata CMR
NCEI accession 0164569 presents a Del13C-DIC data set for the North Atlantic, which has undergone strict quality control.
Description
The data, all in all 6569 samples, originate from oceanographic research cruises that took place between 1981 and 2014. During a primary quality control step based on simple range tests obviously bad data has been flagged.
In a second quality control step systematic biases between of all cruises were quantified through a crossover analysis. The data set consists of 32 cruises of which 24 could be compared quantitatively for systematic biases through an adequate crossover study. Additive adjustments were applied to 11 of the 24 cruises.
Read the rest (2 more)
Based on this analysis the internal consistency of this data set is estimated to be 0.017 o/oo. The NAC13v1.csv file contains the 13C data, a simple quality flag ('Del13Cf', 2: good, 9: bad/not measured) and a 2nd QC-flag ('Del13Cqc', 1: quality controlled, 0: not quality controlled). The NAC13v1_expocode.csv-File contains the allocation of the cruise numbers used in NAC13v1 and their EXPOCODEs as well as the respective cruise numbers in GLODAPv2 and CARINA.
For this analysis some cruises that belong together were condensed to one, e.g. the TTO-NA cruises.
Links
Get the data
- DOI doi.org/10.3334/cdiac/otg.nac13v1 ↗
Navigate directly to the URL for a descriptive web page with download links.
DOI / persistent id · download · from NASA CMR
- ncei.noaa.gov /archive/accession/download/164569 ↗
Navigate directly to the URL for data access and direct download.
download · from NASA CMR
- ftp-oceans.ncei.noaa.gov /nodc/archive/arc0110/0164569 ↗
These data are available through the File Transfer Protocol (FTP). You may use any FTP client to download these data.
download · from NASA CMR
- ncei.noaa.gov /archive/accession/oas/164569 ↗
Navigate directly to the URL for a descriptive web page with download links.
download · from NASA CMR
Documentation and papers
- Preview graphic ncei.noaa.gov/access/metadata/landing-page/bin/gfx?id=gov.noaa.nodc%3A0164569 ↗
preview image · from NASA CMR
Catalogue records · 2
- CMR UMM-JSON cmr.earthdata.nasa.gov/search/concepts/C2089377573-NOAA_NCEI.umm_json ↗
metadata API · from NASA CMR
- CMR record cmr.earthdata.nasa.gov/search/concepts/C2089377573-NOAA_NCEI.html ↗
catalogue entry · from NASA CMR
Topics
- Stated by source
- Carbon dioxide (CO2) gas analyzer · Not provided · Ocean Chemistry · Salinity · titrator · Water Temperature
- Inferred from text
- Oceanography 70%
Provenance · 1 source records, 14 field assertions
| Source | Key | Last seen | Raw |
|---|---|---|---|
| NASA Earthdata CMR | C2089377573-NOAA_NCEI | 14 d ago | JSON v1 |
| Field | Assertion | Extractor | Evidence |
|---|---|---|---|
| access_level | source · NASA CMR | connector:nasa_cmr@1.0.0 | |
| concepts[field].anzsrc:group:3708 | enrichment · NASA CMR | taxonomy-embedding@1.1.0 | title+keywords+description (70%) |
| concepts[instrument].gcmd_instrument:carbon-dioxide-co2-gas-analyzer | source · NASA CMR | connector:nasa_cmr@1.0.0 | |
| concepts[instrument].gcmd_instrument:titrator | source · NASA CMR | connector:nasa_cmr@1.0.0 | |
| concepts[measured_variable].gcmd:earth-science/oceans/ocean-chemistry | source · NASA CMR | connector:nasa_cmr@1.0.0 | |
| concepts[measured_variable].gcmd:earth-science/oceans/ocean-temperature/water-temperature | source · NASA CMR | connector:nasa_cmr@1.0.0 | |
| concepts[measured_variable].gcmd:earth-science/oceans/salinity-density/salinity | source · NASA CMR | connector:nasa_cmr@1.0.0 | |
| concepts[platform].gcmd_platform:not-provided | source · NASA CMR | connector:nasa_cmr@1.0.0 | |
| description | source · NASA CMR | connector:nasa_cmr@1.0.0 | /umm/Abstract |
| license_text | source · NASA CMR | connector:nasa_cmr@1.0.0 | |
| spatial | source · NASA CMR | connector:nasa_cmr@1.0.0 | /umm/SpatialExtent |
| temporal | source · NASA CMR | connector:nasa_cmr@1.0.0 | /umm/TemporalExtents |
| title | source · NASA CMR | connector:nasa_cmr@1.0.0 | /umm/EntryTitle |
| version_label | source · NASA CMR | connector:nasa_cmr@1.0.0 |