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Description

This dataset provides the conductivity, temperature and depth (CTD) measurements from the CTD sensors on a WireWalker profiler on a full-depth mooring deployed by the SWOT prelaunch field campaign. The campaign was designed to test the performance of several instruments/platforms in meeting the SWOT Calibration/Validation (CalVal) requirement. It was conducted near the SWOT CalVal crossover location, about 300 kilometers west of Monterey, California between September, 2019 and January, 2020. The WW samples the upper 500 m of the water column, while the deep ocean below 500 m are measured by fixed-depth CTDs https://doi.org/10.5067/SWTPR-CTD01. The campaign also deployed another two CTD moorings, a slocum glider, one bottom pressure recorder and one Pressure Inverted Echo Sounder. Details can be found in the user guide and the journal reference given in the documentation section.

Product Summary

Platforms
MOORINGS
Instruments
CTD
Spatial Extent

N: 36.2 S: 35.8 E: -125 W: -125.2

Geographic Region
PACIFIC OCEAN
Coordinate System
CARTESIAN
Granule Spatial Representation
CARTESIAN
Temporal Extent
2019-09-05 to 2019-12-03
Data Partner
Physical Oceanography Distributed Active Archive Center, Jet Propulsion Laboratory, NASA (NASA/JPL/PODAAC)
Concept ID
C2229635761-POCLOUD
Data State
COMPLETE
Number of Files/Granules
1
Processing Level
2
Published
Science Keywords
Ocean Temperature ,
Salinity/Density ,
Ocean Pressure

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.

Copy Citation

SWOT. (2022). SWOT 2019-2020 Prelaunch Oceanography Field Campaign SIO Mooring WireWalker (WW) [Data set]. NASA Physical Oceanography Distributed Active Archive Center. https://doi.org/10.5067/SWTPR-WW001 Date Accessed: 2025-12-16

Documents

Variables

Variables are a set of physical properties whose values determine the characteristics or behavior of something. For example, temperature and pressure are variables of the atmosphere. Parameters and variables can be used interchangeably. Variable level attributes provide individual information for each variable.

The Name in this table is the variable name. Fill value indicates missing or undefined data points in a variable. Valid range is the range of values the variable can store. Scale factor is used to increase or decrease the size of an object and can be used to correct for distortion. For questions on a specific variable, please use the Earthdata Forum.

Name Description Units Data Type Fill Value Valid Range Scale Factor
CNDC_WW_RBR RBR conductivity data reported here are adjusted from raw measurements by comparing to measurements taken from the SBE37 on the Wirewalker. mS cm-1 float -9.99 0 to 90 1
CNDC_WW_RBR_QC This quality control flag describes the data that link here through the ancillary_variables attribute. N/A byte -127 0 to 8 1
CNDC_WW_SBE37 sea water conductivity for SBE37 instrument on Wirewalker profiler mS cm-1 float -9.99 0 to 90 1
CNDC_WW_SBE37_QC This quality control flag describes the data that link here through the ancillary_variables attribute. N/A byte -127 0 to 8 1
DEPTH_WW_RBR Depth of each measurement for RBR instrument on Wirewalker profiler meters float -9.99 0 to 12000 1
DEPTH_WW_RBR_QC This quality control flag describes the data that link here through the ancillary_variables attribute. N/A byte -127 0 to 8 1
DEPTH_WW_SBE37 Depth of each measurement for SBE37 instrument on Wirewalker profiler meters float -9.99 0 to 12000 1
DEPTH_WW_SBE37_QC This quality control flag describes the data that link here through the ancillary_variables attribute. N/A byte -127 0 to 8 1
LATITUDE LATITUDE degrees_north double N/A N/A 1
LONGITUDE LONGITUDE degrees_east double N/A N/A 1
PRES_WW_RBR Sea surface is zero, i.e. air pressure is removed. dbar float -9.99 0 to 12000 1
PRES_WW_RBR_QC This quality control flag describes the data that link here through the ancillary_variables attribute. N/A byte -127 0 to 8 1
PRES_WW_SBE37 Sea surface is zero, i.e. air pressure is removed. dbar float -9.99 0 to 12000 1
PRES_WW_SBE37_QC This quality control flag describes the data that link here through the ancillary_variables attribute. N/A byte -127 0 to 8 1
PROFNUM_WW_RBR Profile number for each measurement for RBR instrument on Wirewalker profiler N/A float -9.99 N/A 1
PROFNUM_WW_SBE37 Profile number for each measurement for SBE37 instrument on Wirewalker profiler N/A float -9.99 N/A 1
PSAL_WW_RBR RBR salinity data reported here are calculated from the adjusted RBR conductivity data. 1 float -9.99 0 to 45 1
PSAL_WW_RBR_QC This quality control flag describes the data that link here through the ancillary_variables attribute. N/A byte -127 0 to 8 1
PSAL_WW_SBE37 sea water practical salinity for SBE37 instrument on Wirewalker profiler 1 float -9.99 0 to 45 1
PSAL_WW_SBE37_QC This quality control flag describes the data that link here through the ancillary_variables attribute. N/A byte -127 0 to 8 1
TEMP_WW_RBR sea water temperature for RBR instrument on Wirewalker profiler degree_Celsius float -9.99 -2 to 40 1
TEMP_WW_RBR_QC This quality control flag describes the data that link here through the ancillary_variables attribute. N/A byte -127 0 to 8 1
TEMP_WW_SBE37 sea water temperature for SBE37 instrument on Wirewalker profiler degree_Celsius float -9.99 -2 to 40 1
TEMP_WW_SBE37_QC This quality control flag describes the data that link here through the ancillary_variables attribute. N/A byte -127 0 to 8 1
TIME_WW_RBR time of measurement for RBR instrument on Wirewalker profiler days since 1950-01-01T00:00:00Z double N/A N/A 1
TIME_WW_SBE37 time of measurement for SBE37 instrument on Wirewalker profiler days since 1950-01-01T00:00:00Z double N/A N/A 1
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