Creator: POCLOUD
Keywords: Salinity,Ocean Mixed Layer,Fronts,Water Temperature,Water Pressure,Conductivity,CURRENT PROFILES,OCEAN TEMPERATURE PROFILES

Data at a Glance

Description

This dataset contains in-situ measurements of temperature, salinity, and velocity from the Sub-Mesoscale Ocean Dynamics Experiment (S-MODE) conducted approximately 300 km offshore of San Francisco, during an intensive observation period in the fall of 2022. The data are available in netCDF format with a dimension of time. 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 target in-situ quantities were measured by Lagrangian floats, which were deployed from research vessels and retrieved 3-5 days later. The floats follow the 3D motion of water parcels at depths within or just below the mixed layer and carried a CTD instrument to measure temperature, salinity, and pressure, in addition to an ADCP instrument to measure velocity.

Product Summary

Platforms

BUOYS

Instruments

CTD ,

ADCP

Spatial Extent

N: 38.1 S: 36.3 E: -122.9 W: -125.4

Geographic Region

EASTERN PACIFIC OCEAN

Coordinate System

CARTESIAN

Granule Spatial Representation

CARTESIAN

Temporal Extent

2022-10-01 to 2023-05-31

Data Partner

Physical Oceanography Distributed Active Archive Center, Jet Propulsion Laboratory, NASA (NASA/JPL/PODAAC)

Concept ID

C2612867358-POCLOUD

Data State

COMPLETE

Number of Files/Granules

127

Processing Level

Science Keywords

Salinity ,

Ocean Mixed Layer ,

Fronts ,

Water Temperature ,

Water Pressure ,

Conductivity ,

CURRENT PROFILES ,

OCEAN TEMPERATURE PROFILES

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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Select a Citation Style:

Shcherbina, A. (2023). S-MODE Lagrangian Float Observations Version 1 [Data set]. NASA Physical Oceanography Distributed Active Archive Center. https://doi.org/10.5067/SMODE-FLOAT Date Accessed: 2026-01-06

Documents

DATA CITATION GUIDELINES

Data Use and Citation Guidelines

GENERAL DOCUMENTATION

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 Sort descending	Description	Units	Data Type	Fill Value	Valid Range	Scale Factor
float_pressure	Pressure at the float center	dbar	double	-9999	-1 to 1000	1
latitude_GPS	latitude_GPS	degree_north	double	-9999	-90 to 90	1
longitude_GPS	longitude_GPS	degree_east	double	-9999	-180 to 180	1
pressure	Pressure at the two CTD units	dbar	double	-9999	-1 to 1000	1
salinity	Sea water practical salinity	1	double	-9999	0 to 40	1
temperature	Sea water temperature	degree_C	double	-9999	-2 to 40	1
time_CTD	Time for CTD record	Days since 1950-01-01T00:00:00Z	double	N/A	N/A	1
time_GPS	Time for GPS record	Days since 1950-01-01T00:00:00Z	double	N/A	N/A	1
unit_CTD	Sequential number of the CTD units (1: bottom, 2: top)	N/A	double	N/A	N/A	1