SPURS-2 Field Campaign Third Dataset Release

October 24, 2019

The SPURS (Salinity Processes in the Upper Ocean Regional Study) project is a NASA-funded oceanographic process study and associated field program that aims to elucidate key mechanisms responsible for near-surface salinity variations in the oceans. 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. While SPURS-1 focused on the salinity maximum region of the sub-tropical N. Atlantic, SPURS-2 concentrated on the dynamic and seasonally variable, rainfall-dominated region of the eastern tropical Pacific centered at 10°N, 125°W.  The SPURS-2 campaign involved two month-long cruises by the R/V Revelle in August-September 2016 and October-November 2017 combined with complementary sampling on a more continuous basis over this period by the schooner Lady Amber.

This third release includes a further nine new datasets of what will ultimately likely be a total of twenty-seven in-situ datasets produced during the SPURS-2 field campaign that will be archived and distributed by the PO.DAAC.  Illustrated below, datasets comprising this current release include: PAL (Acoustic Passive Listener), Seaglider, towed Surface Salinity Profile (SSP), research vessel meteorology and surface water observations, Pico Mooring, Neutrally Buoyant Float, and underway data from the sailing vessel Lady Amber.

Figure.  Sample SPURS-2 data outputs for released datasets: A) ARGO-PAL trajectory (top) and rain rate time series plots (bottom), B) Seaglider trajectory (top) and sea water salinity time series (bottom), C) AOML Drifter track (top) and surface salinity time series(bottom), D) Neutrally buoyant float trajectory profile (top) and CTD salinity time series (bottom), E) Pico mooring salinity depth profile series (top) and time series plots (bottom), F) SPURS-2 research vessel trajectory meteorological and surface water measurements (top) and surface salinity time series (bottom), and G) along-track SSP trajectory (top) and associated surface salinity time series (bottom).

SPURS-2 Resources at PO.DAAC:

New SPURS-2 Field Campaign Datasets Released

2019-10-24

The PO.DAAC is pleased to announce the availability of additional datasets from the NASA SPURS-2 field campaign. Following prior releases of thirteen SPURS-2 datasets, this third release includes a further eight new datasets: PAL (Acoustic Passive Listener), Seaglider, drifter, towed Surface Salinity Profile (SSP), research vessel meteorology and surface water observations, Pico Mooring, Neutrally Buoyant Float, and underway data from the sailing vessel Lady Amber.

NASA EOSDIS Annual Customer Satisfaction Survey 2019

2019-10-22

Last week, Physical Oceanography Distributed Active Archive Center (PO.DAAC) users received an email invitation from CFI Group on behalf of NASA. This message will ask you to participate in a web-based survey of NASA Earth Science data and services. PO.DAAC is one of twelve NASA Earth Observing System Data and Information System (EOSDIS) data centers evaluated by this survey. The purpose of this survey is to help PO.DAAC assess customer satisfaction and improve future services.

JPL MEaSUREs Gridded Sea Surface Height Anomalies Level 4 Version 1812 Dataset Release

2019-10-21

The PO.DAAC is pleased to announce the public release of the JPL MEaSUREs Gridded Sea Surface Height Anomalies Level 4 Version 1812 datasets. There are 2 datasets, an interim dataset that has an optimal delay of 4 weeks, and reference dataset that is delayed approximately 2-3 months, with better orbit corrections so that the Sea Surface Height Anomalies are more accurate. The anomalies are measured from 2 altimetric satellites and then gridded using the kriging method.

Reduced quality NOAA STAR S-NPP SST data during inclination adjustment maneuver

2019-10-08

NOAA STAR has announced that four granules of S-NPP SST data contain defective results during the satellite inclination adjustment maneuver. The affected data are within the observation time coverage of 2019-09-26T16:10:00 and 2019-09-26T16:50:00, during which the sensor was pointing to the wrong direction. Unfortunately the reduced quality data was not flagged in the L1b data and resulted in SST anomalies (much too warm SST retrievals). Mostly, the affected area is around Japan/Australia region.

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