Array · collection · 2022
S-MODE L2 Position Data from Surface Drifters Version 1
Listed in NASA Earthdata CMR and NASA Data Portal — shown once because both records carry DOI 10.5067/smode-drift
This dataset contains in-situ position data from surface drifters from the Sub-Mesoscale Ocean Dynamics Experiment (S-MODE) conducted approximately 300 km offshore of San Francisco during a pilot campaign over two weeks in October 2021, and two intensive operating periods (IOPs) in Fall 2022 and Spring 2023.
Description
S-MODE aims to understand how ocean dynamics acting on short spatial scales influence the vertical exchange of physical and biological variables in the ocean.
Drifting buoys were deployed from the research vessels and configured to nominally report positions every five minutes. Drifters deployed were a mixture of CARTHE and Microstar types. CARTHE drifters are drogued at 40 cm depth and measure the average horizontal velocity of currents in the upper 60 cm of the ocean (Novelli et al., 2017).
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Microstar drifters are drogued at 1 m depth and measure the average horizontal velocity of ocean currents between 0.4 m and 1.6 m depth (Ohlmann et al., 2005). See the S-MODE Data Submission Report sections 2.3.2.2, 2.4.2.2 and 2.5.2.3 for more information. Tracking and telemetry of the drifters is done by Pacific Gyre, Inc.
The data are available in netCDF format with a dimension of time. Novelli, G., C. M. Guigand, C. Cousin, E. H. Ryan, N. J. M. Laxague, H. Dai, B. K. Haus, and T. M. Özgökmen, 2017: A Biodegradable Surface Drifter for Ocean Sampling on a Massive Scale. J. Atmos.
Oceanic Technol., 34, 2509–2532, doi.org/10.1175/JTECH-D-17-0055.1. Ohlmann, J. C., P. F. White, A. L. Sybrandy, and P. P. Niiler, 2005: GPS–Cellular Drifter Technology for Coastal Ocean Observing Systems. J. Atmos.
Oceanic Technol., 22, 1381–1388, doi.org/10.1175/JTECH1786.1. Westbrook, E., Bingham, F. M., Brodnitz, S., Farrar, J. T., Rodriguez, E., & Zappa, C., (2024). Submesoscale Ocean Dynamics Experiment (S-MODE) Data Submission Report.
Technical Report. Woods Hole Oceanographic Institution, WHOI-2024-03, doi.org/10.1575/1912/69362
Links
Get the data
- Resource opendap.earthdata.nasa.gov ↗
This dataset can be accessed with the Open-source Project for a Network Data Access Protocol (OPeNDAP) API framework. This service enables variable and dimensional subsetting. The URL redirects to a p
metadata API · download · from NASA CMR, data nasa gov
- Pacific Gyre Microstar GPS Drifter pacificgyre.com/microstar-gps-drifter.aspx ↗
documentation · download · from NASA CMR, data nasa gov
- Data Use and Citation Guidelines podaac.jpl.nasa.gov/CitingPODAAC ↗
documentation · download · from NASA CMR, data nasa gov
- Resource smode.whoi.edu ↗
Project Website for S-MODE hosted by Woods Hole Oceanographic Institute (WHOI)
documentation · download · from NASA CMR, data nasa gov
- Resource podaac.jpl.nasa.gov/s-mode ↗
Project Landing Page for S-MODE on the PO.DAAC Website
documentation · download · from NASA CMR, data nasa gov
- Generic data readers github.com/podaac/data-readers ↗
documentation · download · from NASA CMR, data nasa gov
- 2022 S-MODE Open Data Workshop Information espo.nasa.gov/s-mode/content/S-MODE_2022_Open_Data_Workshop ↗
documentation · download · from NASA CMR, data nasa gov
- Resource espo.nasa.gov/s-mode/content/S-MODE_2022_ODW_Recording_and_Presentations ↗
2022 S-MODE Open Data Workshop Presentations and Recordings
documentation · download · from NASA CMR, data nasa gov
- Resource github.com/podaac/2022-SMODE-Open-Data-Workshop ↗
2022 S-MODE Open Data Workshop Code and Tutorials
documentation · download · from NASA CMR, data nasa gov
- S-MODE Pilot Campaign Field Report espo.nasa.gov/sites/default/files/documents/S-MODE_Pilot-Campaign_Field-Repo… ↗
documentation · download · from NASA CMR, data nasa gov
- S-MODE Data Submission Report doi.org/10.1575/1912/69362 ↗
documentation · download · from NASA CMR, data nasa gov
- Pacific Gyre Carthe GPS Drifter pacificgyre.com/carthe-drifter.aspx ↗
documentation · download · from NASA CMR, data nasa gov
- Original Metadata cmr.earthdata.nasa.gov/search/concepts/C2830029002-POCLOUD.iso19115 ↗
download · from data nasa gov
- search.earthdata.nasa.gov /search/granules?p=C2830029002-POCLOUD ↗
Browse granule search results in Earthdata Search
download · from NASA CMR
- cmr.earthdata.nasa.gov /virtual-directory/collections/C2830029002-POCLOUD ↗
Browse and download granules over HTTPS using the virtual directories
download · from NASA CMR
Where it is published
- NASA Data Portal dataset page data.nasa.gov/dataset/s-mode-l2-position-data-from-surface-drifters-version-… ↗
landing page · from data nasa gov
- DOI doi.org/10.5067/smode-drift ↗
DOI / persistent id · from NASA CMR
Catalogue records · 3
- CKAN API data.nasa.gov/api/3/action/package_show?id=a2c77acb-09a8-4ca6-8faf-b63ac75f3… ↗
metadata API · from data nasa gov
- CMR UMM-JSON cmr.earthdata.nasa.gov/search/concepts/C2830029002-POCLOUD.umm_json ↗
metadata API · from NASA CMR
- CMR record cmr.earthdata.nasa.gov/search/concepts/C2830029002-POCLOUD.html ↗
catalogue entry · from NASA CMR
Topics
- Stated by source
- Buoy Position · BUOYS · DRIFTING BUOYS · Surface Currents
- From keywords
- Astronomy & Astrophysics · Earth & Environmental Science · Ocean & Atmospheric Science · Physics
Provenance · 2 source records, 18 field assertions
| Source | Key | Last seen | Raw |
|---|---|---|---|
| NASA Earthdata CMR | C2830029002-POCLOUD | 13 d ago | JSON v1 |
| NASA Data Portal | a2c77acb-09a8-4ca6-8faf-b63ac75f361b | 10 d ago | JSON v1 |
| Field | Assertion | Extractor | Evidence |
|---|---|---|---|
| access_level | source · NASA CMR | connector:nasa_cmr@1.0.0 | |
| 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:drifting-buoys | source · NASA CMR | connector:nasa_cmr@1.0.0 | |
| concepts[measured_variable].gcmd:earth-science/oceans/ocean-circulation/buoy-position | source · NASA CMR | connector:nasa_cmr@1.0.0 | |
| concepts[measured_variable].gcmd:earth-science/oceans/ocean-circulation/ocean-currents/surface-currents | source · NASA CMR | connector:nasa_cmr@1.0.0 | |
| concepts[platform].gcmd_platform:buoys | 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 | |
| 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 |
| updated_date | source · data nasa gov | connector:data_nasa_gov@1.0.0 | |
| version_label | source · NASA CMR | connector:nasa_cmr@1.0.0 |