On 19 August 2016, the R/V Revelle began survey operations that will run through the middle of September 2016 at the site of the SPURS2 study region in a high rainfall region the Eastern Tropical Pacific. This is the second phase of the NASA-funded Salinity Processes in the Upper Ocean Regional Study (SPURS) project, a science process study and series of oceanographic field campaigns that aim to elucidate key mechanisms responsible for near-surface salinity variations in the oceans. Employing a suite of advanced sampling technologies coupled to regional circulation models, SPURS seeks to quantify the relative significance of circulation, evaporation, precipitation over a range of scales for representative areas of the open ocean. In so doing, it addresses the fundamental role the ocean plays in global water cycle budgets and its relationship to climate.

The ongoing Revelle cruise is the first of up to three SPURS2 cruises spanning a complete annual cycle in 6-month intervals focused within a 3x3 degree survey areas centered at 10N, 125W. It aims to better understand physical processes that influence upper-ocean salinity in a low-salinity, precipitation dominated region of the eastern tropical Pacific (ETP).  This area is heavily influenced by rainfall associated with the intertropical convergence zone (ITCZ). It has a shallow thermocline and strong seasonally-varying currents, making sampling a challenge.  SPURS leverages satellite salinity measurements from SMAP, SMOS and other remote sensing datasets (e.g. SST, altimetry, scatterometry, precipitation).   A suite of in situ (field) observations will be guided by a data-assimilating, regional circulation model to address these questions within this high variability, dynamic region. 

Dataset NameProcessing
Level
Start/StopFormatSpatial ResolutionTemporal
Resolution
SPURS-2 shipboard Acoustic Doppler Current Profiler data for E. Tropical Pacific R/V Revelle cruises22016-Aug-14 to 2017-Nov-17NETCDF0 km (Along) x 0 km (Across)1 Day
SPURS-2 Research vessel Meteorological series data for the E. Tropical Pacific field campaign R/V Revelle cruises22016-Aug-20 to 2017-Nov-15NETCDF0 km (Along) x 0 km (Across)1 Day
SPURS-2 Controlled Flux Technique (CFT) data for the E. Tropical Pacific field campaign R/V Revelle cruises22016-Aug-24 to 2017-Nov-11RAW0 km (Along) x 0 km (Across)
SPURS-2 Seaglider data for the E. Tropical Pacific field campaign22016-Aug-24 to 2017-Nov-07NETCDF0 km (Along) x 0 km (Across)1 Day
SPURS-2 research vessel along track SEA-POL rain radar imaging data for E. Tropical Pacific R/V Revelle-2 cruise22017-Oct-22 to 2017-Nov-10NETCDF0 km (Along) x 0 km (Across)
SPURS-2 Saildrone data for the E. Tropical Pacific field campaign22017-Oct-16 to 2017-Nov-17NETCDF0 km (Along) x 0 km (Across)
SPURS-2 Neutrally buoyant float data for the E. Tropical Pacific field campaign22016-Aug-26 to 2016-Dec-29NETCDF0 km (Along) x 0 km (Across)1 Day
SPURS-2 Passive Accoustic Listener (PAL) data from ARGO float deployments during the E. Tropical Pacific field campaign22016-Aug-30 to 2018-Aug-22NETCDF0 km (Along) x 0 km (Across)1 Day
SPURS-2 research vessel CTD profile data for E. Tropical Pacific R/V Revelle cruises22016-Aug-16 to 2017-Nov-17NETCDF0 km (Along) x 0 km (Across)1 Day
SPURS-2 research vessel Expendable Bathythermograph (XBT) profile data for E. Tropical Pacific R/V Revelle cruises22016-Aug-14 to 2017-Nov-15NETCDF0 km (Along) x 0 km (Across)1 Day
SPURS-2 PICO mooring data for the E. Tropical Pacific field campaign22016-Aug-22 to 2017-Oct-24NETCDF0 km (Along) x 0 km (Across)1 Day
SPURS-2 S/V Lady Amber underway Thermosalinograph and Sea Snake data for the E. Tropical Pacific field campaign22016-Aug-29 to 2018-Apr-30NETCDF0 km (Along) x 0 km (Across)1 Day
SPURS-2 research vessel Underway Salinity Profiling System (USPS) data for the E. Tropical Pacific R/V Revelle cruises22016-Aug-15 to 2017-Nov-15NETCDF0 km (Along) x 0 km (Across)1 Day
SPURS-2 research vessel Underway CTD (uCTD) data for the E. Tropical Pacific R/V Revelle cruises22016-Aug-21 to 2017-Nov-11NETCDF0 km (Along) x 0 km (Across)1 Day
SPURS-2 Argo float CTD profile data from the E. Tropical Pacific field campaign22016-Aug-27 to 2019-Mar-11NETCDF0 km (Along) x 0 km (Across)1 Day
SPURS-2 Central mooring CTD, surface flux and meterorological data for the E. Tropical Pacific field campaign22016-Aug-16 to 2017-Nov-16NETCDF0 km (Along) x 0 km (Across)1 Day
SPURS-2 Surface Salinity Snake data for the E. Tropical Pacific field campaign R/V Revelle cruises22016-Aug-16 to 2017-Nov-16NETCDF0 km (Along) x 0 km (Across)1 Day
SPURS-2 Towed surface salinity profile (SSP) data for the E. Tropical Pacific R/V Revelle cruises22016-Aug-27 to 2017-Nov-11NETCDF0 km (Along) x 0 km (Across)1 Day
SPURS-2 Rawinsonde meteorological data for the E. Tropical Pacific field campaign R/V Revelle cruises22016-Aug-20 to 2017-Nov-10NETCDF0 km (Along) x 0 km (Across)6 hours
SPURS-2 Drifter data for the E. Tropical Pacific field campaign22016-Jun-20 to 2019-Mar-14NETCDF0 km (Along) x 0 km (Across)1 Day
SPURS-2 Waveglider data for the E. Tropical Pacific field campaign22016-Aug-24 to 2017-Nov-10NETCDF0 km (Along) x 0 km (Across)1 Day
SPURS-2 underway surface pCO2, DIC and pH data for the E. Tropical Pacific field campaign R/V Revelle cruises22017-Oct-21 to 2017-Nov-13NETCDF0 km (Along) x 0 km (Across)1 Day
SPURS-2 research vessel along track WAMOS wave radar data for the second R/V Revelle cruise in the E. Tropical Pacific22017-Oct-05 to 2017-Nov-16NETCDF0 km (Along) x 0 km (Across)1 Day