SPURS-2 research vessel along track SEA-POL rain radar imaging data for E. Tropical Pacific R/V Revelle-2 cruise
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DescriptionThe 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 SEA-POL rain radar instrument was employed over the period 22 Oct.-10 Nov. 2017 during the second SPURS-2 R/V Revelle cruise. SEA-POL (seagoing-polarimetric radar) is a C-band, Doppler polarimetric radar system providing 240-degree sector coverage centered on the ships bow via its 1-degree beam width antenna. SEA-POL was used primarily to map rainfall in SPURS-2. The resulting dataset is a series of gridded netCDF data files for a 20 day period at 5-20 minute intervals comprised of rain rate and rain accumulation fields.
Dataset TypeOPEN
Processing Level2
CoverageRegion: Eastern Tropical Pacific
Northernmost Latitude: 24.2 degrees
Southernmost Latitude: 5.06 degrees
Westernmost Longitude: -125.57 degrees
Easternmost Longitude: -119.89 degrees
Time Span: 2017-Oct-22 to 2017-Nov-10
Granule Time Span: 2017-Oct-22 to 2017-Nov-10
ResolutionSpatial Resolution: 0 km (Along) x 0 km (Across)
Ellipsoid: WGS84
Latency hours
Swath Width1 km
Sample Frequency-
Temporal Repeat (Nominal)-
Temporal Repeat (Min)-
Temporal Repeat (Max)-
R/V Revelle
Name: R/V Roger Revelle (SIO) (R/V Revelle)
Orbit Period: 0 minutes
Inclination Angle: 0 degrees
Ascending Node: 1970-Jan-01 00:00:00
Name: SEA-POL Rain Imaging Radar (SEAPOL)
Swath Width: 1 km
Description: SPURS Ship-Based SEA-POL Rain Imaging Radar

ProjectNASA Salinity Processes in the Upper Ocean Regional Study (SPURS)
Data ProviderCreator: Steven A. Rutledge
Release Place: Department of Atmospheric Science, Colorado State University, Fort Collins, Colorado, USA
Release Date: 2019-Mar-28
Resource: http://podaac.jpl.nasa.gov/SPURS
Keyword(s)SEAPOL, radar, rain data, imagery, surface, Upper Ocean, SPURS2, Eastern Tropical Pacific, ITCZ region, Cruises, Revelle, insitu, SPURS, oceanographic campaign
Questions related to this dataset? Contact podaac@podaac.jpl.nasa.gov
Project Materials
SPURS-2 Cruise Documentation Packagehttps://podaac-tools.jpl.nasa.gov/drive/files/allData/insitu/L2/spurs2/docs/CruiseReports/
Cruise Reports
SPURS-2 Data Documentation Packagehttps://podaac-tools.jpl.nasa.gov/drive/files/allData/insitu/L2/spurs2/docs/DataDocumentation/
Data Submission Report, Instrument Calibration Report, etc
Additional Sites
PO.DAAC SPURS Mission pagehttp://podaac.jpl.nasa.gov/spurs
Field Campaign and Instrument Overview
Citation Steven A. Rutledge. 2019. SPURS-2 research vessel along track SEA-POL rain radar imaging data for E. Tropical Pacific R/V Revelle-2 cruise. Ver. 1.0. PO.DAAC, CA, USA. Dataset accessed [YYYY-MM-DD] at https://doi.org/10.5067/SPUR2-RNRDR.

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For more information see Data Citations and Acknowledgments.

Journal Reference Rutledge, S., et al. (2019) The SEA-POL radar goes to sea in SPURS-2. Oceanography, in press.