S-MODE Level 3 Shipboard uCTD and EcoCTD Measurements Version 1

This dataset contains shipboard Underway conductivity, temperature, and depth (UCDT) measurements taken during the Sub-Mesoscale Ocean Dynamics Experiment (S-MODE) pilot campaign conducted approximately 300 km offshore of San Francisco over two weeks in October 2021. 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. The Underway CTD system contains a standard UCDT probe measuring conductivity, temperature, and pressure, as well as an augmented EcoCDT probe that concurrently measures both hydrographic and bio-optical data including conductivity, temperature, pressure, dissolved oxygen concentration, chlorophyll-fluorescence, and particulate backscatter at two different wavelengths. Level 3 data are available in netCDF format with dimensions of profile number and depth.

Data and Resources

Additional Info

Field Value
Maintainer Earthdata Forum
Last Updated September 15, 2026, 04:10 (UTC)
Created April 1, 2025, 18:35 (UTC)
accessLevel public
bureauCode {026:00}
catalog_conformsTo https://project-open-data.cio.gov/v1.1/schema
harvest_object_id 0dfba17c-4e12-44d4-97e0-3e54b9ba423f
harvest_source_id b99e41c6-fe79-4c19-bbc3-9b6c8111bfac
harvest_source_title Science Discovery Engine
identifier 10.5067/SMODE-RVECT3
license https://www.usa.gov/government-works
modified 2026-09-07T22:16:03Z
programCode {026:000}
publisher NASA/JPL/PODAAC
resource-type Dataset
source_datajson_identifier true
source_hash e25ed05598e044cf8a46e8f19a009c8705158de6ab05b0059e55e3e6edcc221c
source_schema_version 1.1
spatial ["CARTESIAN", [{"NorthBoundingCoordinate": 38.1, "WestBoundingCoordinate": -125.4, "EastBoundingCoordinate": -122.9, "SouthBoundingCoordinate": 36.3}]]
temporal 2021-08-01/2021-11-30
theme {"Earth Science"}