SSS Science Team Meeting

1. SSS Science Team Meeting 1300 - 1500 Thursday, 26 September 2013 NCWCP Room 2890 Dial-in 888-942-8616; passcode 26592 Eric Bayler NOAA SSS Science Team Meeting - FY13 Q4

2. Agenda • Introduction / SSS Notes – Eric Bayler • Aquarius Update – Gary Lagerloef • SSS Data and Products • Aquarius Data (V2.0 & CAPS) – Simon Yueh • NODC Update – Yongsheng Zhang • NOAA CoastWatch/OceanWatch Update HengGu • SSS QA – Li Ren • EMC Update – SudhirNadiga • NESDIS Ocean Remote Sensing – Eric Bayler • Open Discussion • Adjourn NOAA SSS Science Team Meeting - FY13 Q4

3. SSS Notes • AGU 2014 Ocean Sciences Meeting (23-28 Feb 2014, Honolulu, HI) • ABSTRACTS DUE: Friday, 4 Oct 2013 • Session: Ocean salinity and water cycle variability and change • Interested in oceanic variability and change, using observational and model-based approaches, over all timescales and with a key focus on salinity (alongside temperature and other ocean-state variables). • JGR Salinity Special Section: • “Early scientific results from the salinity measuring satellites Aquarius/SAC-D and SMOS” • Call for Papers submission window: 1 Jul – 31 Dec 2013 • Wiley Online website • Guest Editors: Jordi Font and Gary Lagerloef • Lead Editor: Des Barton, Editor in Chief for JGR-Oceans • Website for topic coordination: https://aquarius.esr.org/jgr/ • Authors can voluntarily identify topics they plan to write about and add a preliminary abstract. • Intended to promote collaboration, minimize overlap, and help track what papers are likely to be submitted.  The list will remain visible to anyone who visits the site.   • To make changes to your entry after it is submitted, please send an email to David Carey <carey@esr.org>. NOAA SSS Science Team Meeting - FY13 Q4

4. SSS Notes • 6th WMO Data Assimilation Symposium (NCWCP, 7-11 Oct 2013) • Oral Presentation: “Preliminary Results from Assimilating SMOS-mission Satellite Sea-Surface Salinity Fields in an NCEP Operational Ocean Forecast System”; Bayler, Nadiga, Mehra, Behringer • WITHDRAWN due to NOAA travel policies/processes/restrictions • GODAE/OceanView (GOV) Symposium (NCWCP, 4-6 Nov 2013) • POSTER: “Preliminary Results from Assimilating SMOS Satellite Sea-Surface Salinity Fields in an NCEP Operational Ocean Forecast System” • Aquarius/SAC-D Science Team Meeting • Buenos Aires, Argentina, 11-15 Nov 2013 • Time to register (deadline 28 Oct 203) • Register via Email (SACD_AQ_SWT@conae.gov.ar ) stating: • Name and affiliation • If you plan to make a presentation, please provide a title and indicate a preference for either an oral or poster presentation.   • See linkfor more information on summary agenda, venue, transportation, and hotels. NOAA SSS Science Team Meeting - FY13 Q4

5. Aquarius PI Update NOAA SSS Science Team Meeting - FY13 Q4

6. Aquarius PI Update NOAA SSS Science Team Meeting - FY13 Q4

7. SSS Data & Products NOAA SSS Science Team Meeting - FY13 Q4

8. Aquarius V2.3 1 – APDRCADPS and CAP Products Simon Yueh Sept 3, 2013 NOAA SSS Science Team Meeting - FY13 Q4

9. Aquarius Combined Active-Passive (CAP) 2.3.1 Data • Updated galactic reflection correction • See IGARSS 2013 paper • Updated the formulation of cost function • Used the optimal antenna pattern correction matrix • Data available on PO.DAAC for cal/val team’s evaluation • Comparison with APDRC completed NOAA SSS Science Team Meeting - FY13 Q4

10. A-HYCOM D-HYCOM A-D ADPS V2.3 CAP V2.0 CAP V2.3.1 NOAA SSS Science Team Meeting - FY13 Q4

11. A-HYCOM D-HYCOM A-D ADPS V2.3 CAP V2.0 CAP V2.3.1 NOAA SSS Science Team Meeting - FY13 Q4

12. A-HYCOM D-HYCOM A-D ADPS V2.3 CAP V2.0 CAP V2.3.1 NOAA SSS Science Team Meeting - FY13 Q4

13. Ascending and Descending Bias - V2.3.1 (Global Average) NOAA SSS Science Team Meeting - FY13 Q4

14. Aquarius – APDRC (V2.3.1) • RMS of differences of monthly averaged products reaching as low as 0.05 to 0.15 psu for many locations • Use truncated Gaussian weight for gridding • The relatively larger RMS in the ITCZ, Indian ocean, and Arabian sea are likely to due to the time-space mismatch between ARGO and Aquarius ADPS V2.3.1 CAP V2.3.1 NOAA SSS Science Team Meeting - FY13 Q4

15. Salinity Anomalies: Aquarius and APDRC (V2.3.1) • The spatial patterns of monthly anomaly are strikingly similar • Aquarius CAP’s anomalies are generally larger ARGO CAP V2.3.1

16. Standard Deviation of Differences of Monthly Average Green: CAP 2.3.1 error if HYCOM’s error is 0.15 psu NOAA SSS Science Team Meeting - FY13 Q4

17. Bias of Monthly Average: V2.3.1 NOAA SSS Science Team Meeting - FY13 Q4

18. NOAASSS Data & Products NOAA SSS Science Team Meeting - FY13 Q4

19. NOAA-generated SSS Products: NODC SMOS (V2.0) binned Level-3 products • 1°×1° (lat/lng) binned products (3-day and monthly) • Updated through 11 March 11 2013 • /data/data001/pub/SMOS/NOAA/NODC/1x1_degree_binned Aquarius (V2.0) binned Level-3 products • 1°×1° (lat/lng) binned products (7-day and monthly) • Updated through 31 August 2013 • /data/data001/pub/AQUARIUS/NOAA/NODC/1x1_degree_binned • Plan to develop 1.0-degree binned data for the Aquarius Combined Active-Passive (CAP) algorithm Level-2 data NOAA SSS Science Team Meeting - FY13 Q4

20. NOAA-generated binned SSS products from Aquarius Level-2 data Monthly mean SSS 7-day mean SSS Salinity (PSS) Salinity (PSS) NOAA SSS Science Team Meeting - FY13 Q4

21. NOAA CoastWatch/OceanWatchSea Surface Salinity Products Update NOAA SSS Science Team Meeting - FY13 Q4

22. Aquarius SSS Products • Continue pulling mapped daily, 7 day and monthly L3 data products from PODAAC ftp site to STAR SSS processing server rhw1003. • PODAAC data has 30-40 day latency. • L3 data converted from HDF5 to CoastWatch HDF, geotiff and png browsing images and posted on CoastWatch/OceanWatch website • In October 2013, NOAA binned 7day and monthly data in NetCDF 3 and geotiffformat, as well as png browsing images will be posted on CoastWatch/OceanWatch website • Relatively low number of accesses by US and international users • US users including NOAA, UMBC, and some unknown entity • International users from Germany, Netherland, Turkey, China, Indian, South Korea, Taiwan, Mexico, and Portugal (new user in August ).

23. SMOS SSS Products • CoastWatch NetCDF, geotiff and png browsing images will be generated and posted on CoastWatch/OceanWatch website in October 2013.

24. NOAA CoastWatch/OceanWatch SSS Access/Usage

25. Satellite Sea-Surface Salinity Quality Monitoring(4SQM)System Li Ren Eric Bayler NOAA SSS Science Team Meeting - FY13 Q4

26. 4SQM System Diagram NOAA SSS Science Team Meeting - FY13 Q4

27. Year-1 Tasks • Milestone 1: Establish SSS data flows • Level-2: SMOS and Aquarius • Level-3/4: • NASA Aquarius • SMOS Barcelona Center (BEC) • NOAA-NODC binned Satellite SSS products • … • Reference data sets: NOAA World Ocean Atlas • Milestone 2: Perform statistical analyses for SSS • Global QC and statistical checks for self-and cross-consistency • Maps, histograms, time series • Dependencies of differences • Adapted from SST (SQUAM) analyses http://www.star.nesdis.noaa.gov/sod/sst/squam/index.html • Milestone 3: Prototype SSS web pages • Level-2, 3 and 4 data/products • Maps, histograms, time series, Hovmöllerdiagrams , and dependencies • User-selected comparisons and plots NOAA SSS Science Team Meeting - FY13 Q4

28. NASA JPL Aquarius L2 SCI V2.07-day Plot NOAA SSS Science Team Meeting - FY13 Q4

29. SSS Difference (Aquarius - WOA 09): July NOAA SSS Science Team Meeting - FY13 Q4

30. SSS Difference (Aquarius - WOA 09) • The means are negative throughout the year with their values • larger in spring and early summer • The medians are negative in late winter and spring • The RSD are generally similar throughout the year NOAA SSS Science Team Meeting - FY13 Q4

31. Web Page Development: Main Page NOAA SSS Science Team Meeting - FY13 Q4

32. Web Page Development: 1-day SSS Maps NOAA SSS Science Team Meeting - FY13 Q4

33. Web Page Development: 7-day SSS Maps NOAA SSS Science Team Meeting - FY13 Q4

34. EMC UpdateUsing SMOS Sea-Surface Salinity in an NCEP Operational Ocean Model NOAA SSS Science Team Meeting - FY13 Q4

35. Data And Ocean Model • Data: • SMOS Barcelona Expert Centre (BEC) • Global 3-day SSS averages • ¼-degreespatial resolution • Ocean Model: • NCEP’s Modular Ocean Model Version 4 (MOM4) • Resolution: ½-degree (approximate) • Forcing: • Daily NCEP/CFSR fluxes • Climate Forecast System Reanalysis, Saha et. al, 2010 • Experiment Period: • 13 Jan 2010 through 31 Dec 2012 NOAA SSS Science Team Meeting - FY13 Q4

36. SMOS SSS Assimilation: MOM4 Response • UPPER: • Root-mean-square-error (RMSE) for MOM4 model sea-surface heights (SSH) with respect to satellite SSH • RMSE Difference: Case A – Case B • - Case A = SMOS SSS • - Case B = World Ocean Atlas climatological SSS • Blue indicates where Case A (SMOS SSS)is closer to the altimetric SSH LOWER: Normalized RMSE Difference: Case A – Case B - Normalized using the Case A SSH variance NOAA SSS Science Team Meeting - FY13 Q4

37. Next • Detailed verification with respect to altimetric SSH fields • Examine different configurations of the experiment framework • Specifically, look at different relaxation time periods • Shorterrelaxation time period improves fit to SMOS SSS • Detailed Verification with respect to in situ data • EOF analysis of relaxation fields NOAA SSS Science Team Meeting - FY13 Q4

38. NESDIS Ocean Remote Sensing: SSS - 1 • Observations • SSS Data Sets/Streams ($) • Consolidate data stream ops • Optimize data processing across STAR & NODC • SMOS/Aquarius comparisons for product improvements • Evaluate/document data quality/science flag choices • SSS Data Quality Assessment ($) • Develop/implement analysis methods • Establish initial 4SQM capability • Reconcile satellite skin-SSS with in situ near-surfaceobs • Proposal - NASA 2013 ROSES – Ocean Salinity Science Team • “Ocean Surface Salinity global calibration/validation database and environmental parameter space analysis” • PI Deirdre Byrne (NODC/MDSD), Co-I Tim Boyer (NODC/OCL), Co-I Eric Bayler (STAR) NOAA SSS Science Team Meeting - FY13 Q4

39. NESDIS Ocean Remote Sensing: SSS - 2 • Modeling • SSS Data Assimilation • Evaluate impact of data quality/science flag choices, optimizing for numerical modeling • Complete preliminary SMOS Level-3 SSS data characterization study employing existing relaxation methodology, providing initial quantification of satellite SSS impact • Establish Level-2 SSS data stream filters for data assimilation application • Initiate characterization of SMOS and Aquarius SSS Level-2 data sets • Improved Assimilation of SSS-dependent Obs • Deferred • Improved Radiative Transfer Modeling for Microwave Radiometry • Explore SSS impact on AMSR-2 retrievals NOAA SSS Science Team Meeting - FY13 Q4

40. NESDIS Ocean Remote Sensing: SSS - 3 • Climatology • Global SSS Baseline • Refine and provisionally product NOAA Blended Analysis of Surface Salinity (BASS) • Satellite SSS for Computing Global Upper-ocean Heat Content • Deferred • Virtual Rain Gauge • Initial assessment versus observed precipitation/evaporation • Ecosystems • Define Species Domains • Initiate the use of satellite SSS data in biome identification • Frontal Food Webs and Fisheries • Initiate the use of satellite SSS data in food web and fisheries studies • Ocean Acidification • Deferred NOAA SSS Science Team Meeting - FY13 Q4

41. OPEN DISCUSSION NOAA SSS Science Team Meeting - FY13 Q4