Array · collection · 2024
S-MODE Pre-Pilot Ocean Wave Slope from Visible-Band Polarimetry at the Air-Sea Interaction Tower Version 1
Listed in NASA Earthdata CMR and NASA Data Portal — shown once because both records carry DOI 10.5067/smode-wslope
These wave slope data from polarimetry described below are considered preliminary and should not be used for any purpose without consulting Chris Zappa (zappa@ldeo.columbia.edu).
Description
This data set includes tower-based measurements of ocean wave slope fields from visible-band polarimetry using a Polaris Pyxis Mono VIS polarimetric camera. The data here include wave slope fields at 30 frames per second temporal resolution and mm-scale spatial resolution over a ~2 m x 2 m area of ocean surface observed off the Air-Sea Interaction Tower (ASIT; 41°20.1950'N, 70°33.3865'W).
Measurements were taken over the period from October 2019 through January 2020. Surface slopes are along two dimensions: along-look and cross-look orientations of the camera. Data was acquired for 10 minutes per hour, 8 hours per day, and each data file (netCDF-4) captures one of the 10-minute segments.
Read the rest (2 more)
Note that data files are large, 142 GB each. Data were collected as part of a pre-pilot campaign for the S-MODE (Submesoscale Ocean Dynamics Experiment) project. The polarimetric slope sensing (PSS) technique of Zappa et al. [2008] allows one to reconstruct the water surface slope field by measuring the polarization state of reflected light at each image pixel, allowing for surface resolutions of order 1 mm with no in-water measurement component.
From these data one is able to compute water surface slope variance, wave directional spreading, and the near-surface current profile.
Links
Get the data
- Data Use and Citation Guidelines podaac.jpl.nasa.gov/CitingPODAAC ↗
documentation · download · from NASA CMR, data nasa gov
- Resource podaac.jpl.nasa.gov/s-mode ↗
PO.DAAC Landing Page for the S-MODE Project (field campaign, instruments, available data sets, cruise reports, other resources/links related to the project as a whole)
documentation · download · from NASA CMR, data nasa gov
- PDF archive.podaac.earthdata.nasa.gov/podaac-ops-cumulus-docs/s-mode/docs/S-MODE_ASIT-Wave_Slope_Pol… ↗
Read me file giving a short description of the instrument, measurements, and file contents.
documentation · download · from NASA CMR, data nasa gov
- Resource doi.org/10.1088/0957-0233/19/5/055503 ↗
Journal publication describing the measurement technique
documentation · download · from NASA CMR, data nasa gov
- Original Metadata cmr.earthdata.nasa.gov/search/concepts/C2162104652-POCLOUD.iso19115 ↗
download · from data nasa gov
- cmr.earthdata.nasa.gov /virtual-directory/collections/C2162104652-POCLOUD ↗
Browse and download granules over HTTPS using the virtual directories
download · from NASA CMR
- search.earthdata.nasa.gov /search/granules?p=C2162104652-POCLOUD ↗
Browse granule search results in Earthdata Search
download · from NASA CMR
- github.com /podaac/data-subscriber ↗
This dataset can be downloaded using the podaac-data-subscriber (the recommended tool for bulk downloading PO.DAAC data). It is a Python package for downloading one or many files using the command lin
download · from NASA CMR
Where it is published
- NASA Data Portal dataset page data.nasa.gov/dataset/s-mode-pre-pilot-ocean-wave-slope-from-visible-band-po… ↗
landing page · from data nasa gov
- DOI doi.org/10.5067/smode-wslope ↗
DOI / persistent id · from NASA CMR
Catalogue records · 3
- CKAN API data.nasa.gov/api/3/action/package_show?id=c9518cab-d77f-4e31-901a-b99f255b0… ↗
metadata API · from data nasa gov
- CMR UMM-JSON cmr.earthdata.nasa.gov/search/concepts/C2162104652-POCLOUD.umm_json ↗
metadata API · from NASA CMR
- CMR record cmr.earthdata.nasa.gov/search/concepts/C2162104652-POCLOUD.html ↗
catalogue entry · from NASA CMR
Topics
- Stated by source
- FIXED OBSERVATION STATIONS · Sea Surface Slope · STOKES POLARIMETER
- From keywords
- Astronomy & Astrophysics · Earth & Environmental Science · Ocean & Atmospheric Science · Physics
- Inferred from text
- Image 75% · Oceanography 68%
Provenance · 2 source records, 18 field assertions
| Source | Key | Last seen | Raw |
|---|---|---|---|
| NASA Earthdata CMR | C2162104652-POCLOUD | 8 d ago | JSON v1 |
| NASA Data Portal | c9518cab-d77f-4e31-901a-b99f255b03da | 5 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@1.0.0 | title+keywords+description (68%) |
| concepts[field].local:field:astronomy | mapping · data nasa gov | connector:data_nasa_gov@1.0.0 | |
| concepts[field].local:field:earth-environmental | mapping · data nasa gov | connector:data_nasa_gov@1.0.0 | |
| concepts[field].local:field:ocean-atmospheric | mapping · data nasa gov | connector:data_nasa_gov@1.0.0 | |
| concepts[field].local:field:physics | mapping · data nasa gov | connector:data_nasa_gov@1.0.0 | |
| concepts[instrument].gcmd_instrument:stokes-polarimeter | source · NASA CMR | connector:nasa_cmr@1.0.0 | |
| concepts[measured_variable].gcmd:earth-science/oceans/sea-surface-topography/sea-surface-slope | source · NASA CMR | connector:nasa_cmr@1.0.0 | |
| concepts[modality].local:modality:image | enrichment · NASA CMR | keyword-concept-rules@1.0.0 | title+description (75%) |
| concepts[platform].gcmd_platform:fixed-observation-stations | source · NASA CMR | connector:nasa_cmr@1.0.0 | |
| created_date | source · data nasa gov | connector:data_nasa_gov@1.0.0 | |
| description | source · NASA CMR | connector:nasa_cmr@1.0.0 | /umm/Abstract |
| license_text | source · data nasa gov | connector:data_nasa_gov@1.0.0 | |
| publication_date | source · NASA CMR | connector:nasa_cmr@1.0.0 | |
| temporal | source · NASA CMR | connector:nasa_cmr@1.0.0 | /umm/TemporalExtents |
| title | source · NASA CMR | connector:nasa_cmr@1.0.0 | /umm/EntryTitle |
| updated_date | source · data nasa gov | connector:data_nasa_gov@1.0.0 | |
| version_label | source · NASA CMR | connector:nasa_cmr@1.0.0 |