Please Note: This dataset is retired, and is displayed for archive purposes only, and may not reflect the most updated information.
However, a newer version exists.
JPL SMAP Level 3 CAP Sea Surface Salinity Standard Mapped Image 8-Day Running Mean V5.0 Validated Dataset. DOI: https://doi.org/10.5067/SMP50-3TPCS
For Version History information click here >>
However, a newer version exists.
JPL SMAP Level 3 CAP Sea Surface Salinity Standard Mapped Image 8-Day Running Mean V5.0 Validated Dataset. DOI: https://doi.org/10.5067/SMP50-3TPCS
For Version History information click here >>
JPL SMAP Level 3 CAP Sea Surface Salinity Standard Mapped Image 8-Day Running Mean V4.0 Validated Dataset
(SMAP_JPL_L3_SSS_CAP_8DAY-RUNNINGMEAN_V4)
10 Publications Cited this Dataset
Citation metrics available for years (2014-2022)
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Publications citing JPL SMAP Level 3 CAP Sea Surface Salinity Standard Mapped Image 8-Day Running Mean V4.0 Validated Dataset
Citation metrics available for years (2014-2022)
Year | Citation |
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2018 | Seven Years of SMOS sea surface salinity at high latitudes: Variability in Arctic and Sub-Arctic Regions, Remote Sensing ,https://doi.org/10.3390/rs10111772 |
2018 | JPL Climate Oceans and Solid Earth Group. JPL SMAP Level 3 CAP Sea Surface Salinity Standard Mapped Image Monthly or 8-Day Running Mean; V4.0 Validated Dataset; PO.DAAC: Pasadena, CA, USA, 2018. The Potential and Challenges of Using Soil Moisture Active Passive (SMAP) Sea Surface Salinity to Monitor Arctic Ocean Freshwater Changes, Remote Sensing ,https://doi.org/10.3390/rs10060869 |
2018 | Intercomparison of In-Situ and Remote Sensing Salinity Products in the Gulf of Mexico, a River-Influenced System, Remote Sensing ,https://doi.org/10.3390/rs10101590 |
2019 | Evaluation and Intercomparison of SMOS, Aquarius, and SMAP Sea Surface Salinity Products in the Arctic Ocean, Remote Sensing ,https://doi.org/10.3390/rs11243043 |
2019 | Impact of Aquarius and SMAP satellite sea surface salinity observations on coupled El Niño/Southern Oscillation forecasts, Journal of Geophysical Research: Oceans ,https://doi.org/10.1029/2019JC015130 |
2019 | Loop Current and Eddy‐Driven Salinity Variability in the Gulf of Mexico, Geophysical Research … ,https://doi.org/10.1029/2019GL082931 |
2019 | Maritime Continent water cycle regulates low-latitude chokepoint of global ocean circulation, Nature communications ,https://doi.org/10.1038/s41467-019-10109-z |
2020 | Observation of whale shark, Rhincodon typus (Smith, 1828) off Goa, northern Arabian sea, Indian Journal of Geo Marine Sciences ,http://nopr.niscair.res.in/handle/123456789/54660 |
2021 | Seasonal and interannual variability of sea surface salinity near major river mouths of the world ocean inferred from gridded satellite and in-situ salinity products, Journal ,10.3390/rs13040728 |
2022 | Influence of nonseasonal river discharge on sea surface salinity and height, Journal of Advances in Modeling Earth Systems ,10.1029/2021MS002715 |
DOI | 10.5067/SMP40-3TPCS |
Short Name | SMAP_JPL_L3_SSS_CAP_8DAY-RUNNINGMEAN_V4 |
Description | This is the PI-produced JPL SMAP-SSS V4.0 CAP, 8-day running mean, level 3 mapped, sea surface salinity product from the NASA Soil Moisture Active Passive (SMAP) observatory. It is based on the Combined Active-Passive (CAP) retrieval algorithm developed at JPL originally in the context of Aquarius/SAC-D and now extended to SMAP. Daily data files for this product are based on SSS averages spanning an 8-day moving time window. Associated file variables include: derived SSS and wind speed data from SMAP and ancillary surface salinity from HYCOM. SMAP data begins on April 1, 2015 and is ongoing, with a 7-day latency in processing and availability. L3 products are global in extent and gridded at 0.25degree x 0.25degree with an approximate spatial resolution of 60km. Improvements with this V4.0 dataset include: addition of estimated SSS uncertainty, improvement of TB correction for high latitudes, modification of the land correction range to 1000 km from coast, change of the ancillary wind source from NCEP GDAS to NCEP GFS resulting in significant improvements in SSS retrievals near storms, extension of the range of SSS retrievals to 45 PSU, and SSS retrievals also for large inland seas. The SMAP satellite is in a near-polar orbit at an inclination of 98 degrees and an altitude of 685 km. It has an ascending node time of 6 pm and is sun-synchronous. With its 1000km swath, SMAP achieves global coverage in approximately 3 days, but has an exact orbit repeat cycle of 8 days. On board instruments include a highly sensitive L-band radiometer operating at 1.41GHz and an L-band 1.26GHz radar sensor providing complementary active and passive sensing capabilities. Malfunction of the SMAP scatterometer on 7 July, 2015, has necessitated the use of collocated wind speed for the surface roughness correction required for the surface salinity retrieval. |
Version | 4.0 |
Dataset Type | DEPRECATED |
Questions related to this dataset? Contact podaac@podaac.jpl.nasa.gov
Please contact podaac@podaac.jpl.nasa.gov for more info.
Citation is critically important for dataset documentation and discovery. Please cite the data as follows, and cite the reference papers when it is appropriate.
Citation | JPL Climate Oceans and Solid Earth group. 2018. JPL CAP SMAP Sea Surface Salinity Products. Ver. 4.0. PO.DAAC, CA, USA. Dataset accessed [YYYY-MM-DD] at https://doi.org/10.5067/SMP40-3TPCS
For more information see Data Citations and Acknowledgments.
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Journal Reference | Fore,A.G, S.H. Yueh, W. Tang, B.W. Stiles, and A.K. Hayashi (2016). Combined Active/Passive Retrievals of Ocean Vector Wind and Sea Surface Salinity With SMAP. IEEE TRANSACTIONS ON GEOSCIENCE AND REMOTE SENSING, VOL. 54, NO. 12. p.7396-7404. DOI: 10.1109/TGRS.2016.2601486 . |
Version | Dataset | Version Date | Status | |
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5.0 | JPL SMAP Level 3 CAP Sea Surface Salinity Standard Mapped Image 8-Day Running Mean V5.0 Validated Dataset | 2022-02-08 | ACTIVE | 2022-02-08T16:57:00.000Z |
4.3 | JPL SMAP Level 3 CAP Sea Surface Salinity Standard Mapped Image 8-Day Running Mean V4.3 Validated Dataset | Present | RETIRED. | |
4.2 | JPL SMAP Level 3 CAP Sea Surface Salinity Standard Mapped Image 8-Day Running Mean V4.2 Validated Dataset | Present | RETIRED. | |
4.0 | JPL SMAP Level 3 CAP Sea Surface Salinity Standard Mapped Image 8-Day Running Mean V4.0 Validated Dataset | Present | RETIRED. | |
3.0 | JPL SMAP Level 3 CAP Sea Surface Salinity Standard Mapped Image 8-Day Running Mean V3.0 Validated Dataset | 2024-02-20 | RETIRED. | 2024-02-20T22:19:00.000Z |