Data · collection
CODAR Real time Long range vector fields
Listed in NASA Earthdata CMR
CODAR is used to measure the surface currents of the coastal ocean.
Description
A transmitter sends out a radio frequency that bounces off the ocean surface and back to a receiver antenna. Using this information and the principles of the Doppler shift, CODAR is able to calculate the speed and direction of the surface current.
These calculations are made at about every half mile across the surface and extend as far as about twenty miles offshore. The following Data is available online: Raw Vector Field: The raw surface current is the unprocessed data measured by CODAR. Therefore these velocity fields are the summation of all sources of current, including tides and wind.
Read the rest (2 more)
Tidal Vector Field: This vector field represents the component of the raw velocity that is caused by tidal forcing. Detided Vector Field: The detided vector field contains all the surface currents shown in the raw velocity field with the exception of the tidal currents. Using the above periods, a predicted tide is calculated and then subtracted from the raw data field.
Averaged Vector Field : The Averaged vector field is a 36 hour average of the detided field. Inertial Vector Field: The inertial vector field is calculated using a least squares fit to the detided data over the most recent 36 hours.
Links
Get the data
- CODAR Data Portal rucool.marine.rutgers.edu/CODAR-Data/codar-data-portal ↗
download · from NASA CMR
- Long-Range CODAR Real-Time Data marine.rutgers.edu/mrs/codar/real-time/real_time_lr.html ↗
download · from NASA CMR
Catalogue records · 2
- CMR record cmr.earthdata.nasa.gov/search/concepts/C1214613213-SCIOPS.html ↗
catalogue entry · from NASA CMR
- CMR UMM-JSON cmr.earthdata.nasa.gov/search/concepts/C1214613213-SCIOPS.umm_json ↗
metadata API · from NASA CMR
Topics
- Stated by source
- Not provided · Ocean Currents · Salinity · Sea Surface Height · Tidal Components · Tidal Currents · Tidal Height · Water Temperature · Wind-Driven Circulation
Provenance · 1 source records, 15 field assertions
| Source | Key | Last seen | Raw |
|---|---|---|---|
| NASA Earthdata CMR | C1214613213-SCIOPS | 13 d ago | JSON v1 |
| Field | Assertion | Extractor | Evidence |
|---|---|---|---|
| access_level | source · NASA CMR | connector:nasa_cmr@1.0.0 | |
| concepts[measured_variable].gcmd:earth-science/oceans/coastal-processes/tidal-height | source · NASA CMR | connector:nasa_cmr@1.0.0 | |
| concepts[measured_variable].gcmd:earth-science/oceans/ocean-circulation/ocean-currents | source · NASA CMR | connector:nasa_cmr@1.0.0 | |
| concepts[measured_variable].gcmd:earth-science/oceans/ocean-circulation/wind-driven-circulation | 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[measured_variable].gcmd:earth-science/oceans/sea-surface-topography/sea-surface-height | source · NASA CMR | connector:nasa_cmr@1.0.0 | |
| concepts[measured_variable].gcmd:earth-science/oceans/tides/tidal-components | source · NASA CMR | connector:nasa_cmr@1.0.0 | |
| concepts[measured_variable].gcmd:earth-science/oceans/tides/tidal-currents | 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 |
| 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 |