Skip to main content
U.S. flag

An official website of the United States government

Official websites use .gov
A .gov website belongs to an official government organization in the United States.

Secure .gov websites use HTTPS
A lock ( ) or https:// means you’ve safely connected to the .gov website. Share sensitive information only on official, secure websites.

Skip to content

SPURS-2 Controlled Flux Technique (CFT) data for the E. Tropical Pacific field campaign R/V Revelle cruises

Metadata Updated: December 6, 2023

The SPURS (Salinity Processes in the Upper Ocean Regional Study) project is NASA-funded oceanographic process study and associated field program that aim to elucidate key mechanisms responsible for near-surface salinity variations in the oceans. The project involves two field campaigns and a series of cruises in regions of the Atlantic and Pacific Oceans exhibiting salinity extremes. SPURS employs a suite of state-of-the-art in-situ sampling technologies that, combined with remotely sensed salinity fields from the Aquarius/SAC-D, SMAP and SMOS satellites, provide a detailed characterization of salinity structure over a continuum of spatio-temporal scales. The SPURS-2 campaign involved two month-long cruises by the R/V Revelle in August 2016 and October 2017 combined with complementary sampling on a more continuous basis over this period by the schooner Lady Amber. Focused around a central mooring located near 10N,125W, the objective of SPURS-2 was to study the dynamics of the rainfall-dominated surface ocean at the western edge of the eastern Pacific fresh pool subject to high seasonal variability and strong zonal flows associated with the North Equatorial Current and Countercurrent. The Controlled Flux Technique (CFT) is a system for measuring the net heat transfer velocity and turbulent kinetic energy (TKE) dissipation at the ocean surface, and is a useful tool for studying the turbulence generated at the ocean surface by the impact of raindrops. CFT was employed during both SPURS-2 Revelle cruises. It involves a laser heating a small patch of water on the ocean surface, and an infrared imaging camera then tracking the resulting thermal decay. This decay is known to be proportional to the dissipation of TKE at the water surface, which in turn can be used to scale the transfer velocity for the net heat flux. SPURS2 CFT data take the form of a series of .raw video files each with corresponding .met text header files containing the associated file metadata. The CFT data was recorded at 15 frames per second (fps) during the first Revelle cruise in 2016, and at 25 fps during the second in 2017. Matlab CFT reader software are provided by UW/APL and distributed here with the CFT data files.

Access & Use Information

Public: This dataset is intended for public access and use. License: No license information was provided. If this work was prepared by an officer or employee of the United States government as part of that person's official duties it is considered a U.S. Government Work.

Downloads & Resources

Dates

Metadata Created Date May 30, 2023
Metadata Updated Date December 6, 2023

Metadata Source

Harvested from NASA Data.json

Graphic Preview

Thumbnail

Additional Metadata

Resource Type Dataset
Metadata Created Date May 30, 2023
Metadata Updated Date December 6, 2023
Publisher NASA/JPL/PODAAC
Maintainer
Identifier C2036882419-POCLOUD
Data First Published 2019-07-08
Language en-US
Data Last Modified 2019-07-08
Category SPURS, geospatial
Public Access Level public
Bureau Code 026:00
Metadata Context https://project-open-data.cio.gov/v1.1/schema/catalog.jsonld
Metadata Catalog ID https://data.nasa.gov/data.json
Schema Version https://project-open-data.cio.gov/v1.1/schema
Catalog Describedby https://project-open-data.cio.gov/v1.1/schema/catalog.json
Citation W. Asher. 2019-07-31. SPURS-2 Controlled Flux Technique (CFT) data for the E. Tropical Pacific field campaign R/V Revelle cruises. Version 1.0. SPURS Field Campaign Rawinsonde Products. Applied Physics Laboratory, University of Washington, 1013 NE 40th St, Seattle, WA 98105. Archived by National Aeronautics and Space Administration, U.S. Government, SPURS Data Management PI, Fred Bingham. https://doi.org/10.5067/SPUR2-CFT00. http://podaac.jpl.nasa.gov/SPURS. W. Asher, SPURS Data Management PI, Fred Bingham, 2019-07-31, SPURS-2 Controlled Flux Technique (CFT) data for the E. Tropical Pacific field campaign R/V Revelle cruises, http://podaac.jpl.nasa.gov/SPURS.
Creator W. Asher
Graphic Preview Description Thumbnail
Graphic Preview File https://podaac.jpl.nasa.gov/Podaac/thumbnails/SPURS2_CFT.jpg
Harvest Object Id dd513484-a3ad-4fe0-a59a-587f32b105a2
Harvest Source Id 58f92550-7a01-4f00-b1b2-8dc953bd598f
Harvest Source Title NASA Data.json
Homepage URL https://doi.org/10.5067/SPUR2-CFT00
Metadata Type geospatial
Old Spatial -157.88 5.06 -118.32 21.26
Program Code 026:001
Release Place Applied Physics Laboratory, University of Washington, 1013 NE 40th St, Seattle, WA 98105
Series Name SPURS-2 Controlled Flux Technique (CFT) data for the E. Tropical Pacific field campaign R/V Revelle cruises
Source Datajson Identifier True
Source Hash 2688ef4f2d8d8d59dbfc869560af7f51e6f51b4263e85ebc7fa092e572f5e9ca
Source Schema Version 1.1
Spatial
Temporal 2016-08-24T23:30:15Z/2017-11-11T07:48:41Z

Didn't find what you're looking for? Suggest a dataset here.