Data · collection
Oceanographic profile temperature and salinity data using underway CTD, collected by the Graduate School of Oceanography, University of Rhode Island, cruise KN200-2, North Atlantic Ocean, 2011-03 (NCEI Accession 0115494)
Listed in NASA Earthdata CMR
The dataset consists of 81 Underway CTD (UCTD) casts in the region north of Flemish Cap.
Description
The UCTD is an un-pumped profiling CTD, manufactured by the Oceanscience Group, that can be deployed from a moving ship. The UCTD measures temperature, conductivity, and pressure at 16 Hz.
The pressure and its time derivative (descent rate) were low-pass filtered with a filter cutoff period of 2 s. The temperature and conductivity signals were also filtered, but with the filter cutoff period set to 0.25 s. Alignment of the temperature and conductivity was performed as a function of the instrument descent rate using an empirical relationship.
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Because of the rapid descent rate of the UCTD (up to 4 dbar/s), the measured temperature was corrected for the effect of viscous heating. The effect of the thermal mass of the conductivity cell was accounted for using the standard correction with the parameters determined as a function of the local instrument descent rate. The processed temperature, conductivity, and pressure were used to compute salinity, potential temperature, and potential density.
Finally, the data were averaged into 1 dbar bins.
Links
Get the data
- ncei.noaa.gov /archive/accession/download/115494 ↗
Navigate directly to the URL for data access and direct download.
download · from NASA CMR
- ncei.noaa.gov /archive/accession/0115494 ↗
Navigate directly to the URL for a descriptive web page with download links.
download · from NASA CMR
- ftp-oceans.ncei.noaa.gov /nodc/archive/arc0070/0115494 ↗
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/115494 ↗
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%3A0115494 ↗
preview image · from NASA CMR
Catalogue records · 2
- CMR record cmr.earthdata.nasa.gov/search/concepts/C2089374770-NOAA_NCEI.html ↗
catalogue entry · from NASA CMR
- CMR UMM-JSON cmr.earthdata.nasa.gov/search/concepts/C2089374770-NOAA_NCEI.umm_json ↗
metadata API · from NASA CMR
Topics
- Stated by source
- Conductivity · Conductivity, Temperature, Depth · Density · Not provided · Potential Temperature · R/V Knorr · Salinity · Water Pressure · Water Temperature
Provenance · 1 source records, 16 field assertions
| Source | Key | Last seen | Raw |
|---|---|---|---|
| NASA Earthdata CMR | C2089374770-NOAA_NCEI | 15 d ago | JSON v1 |
| Field | Assertion | Extractor | Evidence |
|---|---|---|---|
| access_level | source · NASA CMR | connector:nasa_cmr@1.0.0 | |
| concepts[instrument].gcmd_instrument:ctd | source · NASA CMR | connector:nasa_cmr@1.0.0 | |
| concepts[measured_variable].gcmd:earth-science/oceans/ocean-pressure/water-pressure | source · NASA CMR | connector:nasa_cmr@1.0.0 | |
| concepts[measured_variable].gcmd:earth-science/oceans/ocean-temperature/potential-temperature | 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/conductivity | source · NASA CMR | connector:nasa_cmr@1.0.0 | |
| concepts[measured_variable].gcmd:earth-science/oceans/salinity-density/density | 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 | |
| concepts[platform].gcmd_platform:r-v-knorr | 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 |