N: 36.2 S: 35.8 E: -125 W: -125.2
Description
This dataset provides the 1Hz time series of the sea surface height measured by a surface buoy equipped with a Global Position System (GPS). The GPS-mooring was deployed by the SWOT prelaunch field campaign conducted near the SWOT CalVal crossover location, about 300 kilometers west of Monterey, California between September, 2019 and January, 2020. The GPS measurements represent the total sea surface height including the Inverted barometer component. The same mooring also carries fixed-depth CTD sensors https://doi.org/10.5067/SWTPR-CTD11. They were used together with atmospheric pressure and bottom pressure measurements to close the sea surface equation (Wang et al., 2022). The campaign also deployed another two CTD moorings, a slocum glider, and a Pressure Inverted Echo Sounder (PIES). Details can be found in the user guide and the journal reference given in the documentation section.
Product Summary
Citation
Citation is critically important for dataset documentation and discovery. This dataset is openly shared, without restriction, in accordance with the EOSDIS Data Use and Citation Guidance.
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Documents
DATA CITATION GUIDELINES
GENERAL DOCUMENTATION
Variables
The table below lists the variables contained within a single granule for this dataset. Variables often contain observed or derived geophysical measurements collected from a variety of sources, including remote sensing instruments on satellite and airborne platforms, field campaigns, in situ measurements, and model outputs. The terms variable, parameter, scientific data set, layer, and band have been used across NASA’s Earth science disciplines; however, variable is the designated nomenclature in NASA’s Common Metadata Repository (CMR). Variable metadata attributes such as Name, Description, Units, Data Type, Fill Value, Valid Range, and Scale Factor allow users to efficiently process and analyze the data. The full range of attributes may not be applicable to all variables. Additional information on variable attributes is typically available in the data, user guide, and/or other product documentation.
For questions on a specific variable, please use the Earthdata Forum.
| Name Sort descending | Description | Units | Data Type | Fill Value | Valid Range | Scale Factor | Offset |
|---|---|---|---|---|---|---|---|
| ERR | Formal error in SSH from GPS estimate | cm | double | -9999 | N/A | 1 | N/A |
| GPS_SSH | Instantaneous GPS SSH wrt Sandwell custom MSS for campaign region (cm) 1-Hz data reflects expression of ocean tides and passing wind wave and swell Corrected for IB and body tides to facilitate comparison with hydrographic data Raw high-rate estimates with limited quality control | cm | double | -9999 | N/A | 1 | N/A |
| LATITUDE | LATITUDE | degree_north | double | -9999 | -90 to 90 | 1 | N/A |
| LONGITUDE | LONGITUDE | degree_east | double | -9999 | -180 to 180 | 1 | N/A |
| time | time | seconds since 2019-09-05 20:00:00 | double | -9999 | N/A | 1 | N/A |