1. Kevin O’Brien University of Washington/JISAO NOAA/PMEL Interoperable Access to Near Real Time Ocean Observations with the Observing System Monitoring Center Steve Hankin, NOAA/PMEL Roy Mendelssohn, NOAA/PFEL Bob Simons, NOAA/PFEL Kevin Kern, NOAA/NDBC Bill Smith, NOAA/NDBC

2. OSMC background Database of data and metadata (“realtime”) GTS -- primary source Data begins in June, 2004 800 million observations from 40K platforms

3. Monitoring OSMC tools Planning Reporting

4. What about the data? Is it useful? – Timely QC’d data can take months to become available Forecast models could utilize NRT data to improve their forecasts Can be used to identify problems with platforms

5. What about the data? How do I get to it? – Grab data from GTS What’s that and how can I connect to it? What headers do I need? What format will it be in? How do I decode the data?

6. What about the data? Yes, let’s make it available How to do so responsibly? – In an interoperable way? Use ERDDAP

7. ERDDAP Out of Pacfic Fisheries Environmental Lab – Roy Mendelsohnn, Bob Simons Data server that provides services Can ingest and serve data in many common formats Has a Web page for humans, but utilizes RESTful Web services – Crucial for machine to machine access INOUT

8. Oracle Points Surface Trajectories Profiles Time Series CF 1.6 Discrete Sampling Geometry features

9. What’s it all mean? – NRT data is now available to a multitude of clients: Google earth, R, matlab, Ferret, GrADS, any netCDF or OPeNDAP client, Excel – Available via web interface or RESTful URLs

10. 72-hour forecast NAM-WRF 0Z cycle at 2 am EST [NCEP NOMADS] RU regional CODAR product – hourly: 4-hour latency delay [RU TDS] RU glider T,S when available (seldom) (~ 1 hour delay) [RU TDS] USGS daily average flow available 11:00 EST [USGS waterdata] AVHRR IR passes 6-8 per day (~ 2 hour delay) [MARACOOS TDS] REMSS MW-IR blended SST daily average [PO-DAAC] HYCOM NCODA 7-day forecast updated daily [NRL] Jason-2 along-track SLA (4 to 16 hour delay for OGDR) [RADS] SOOP XBT/CTD, Argo floats, NDBC buoys on GTS [OSMC ERDDAP] Work flow for real-time ESPreSSO ROMS 4DVar John Wilkin Rutgers Ocean Modeling Group MARACOOS Accessing the data

11. *Experimental System for Predicting Shelf and Slope Optics www.myroms.org/espressowww.myroms.org/espresso ESPreSSO Work flow for real-time ESPreSSO ROMS 4DVar Analysis interval is 00:00 – 24:00 UTC Input pre-processing starts 01:00 EST Input preprocessing completes approximately 05:00 EST 4DVAR analysis completes approx 08:00 EST 24-hour analysis is followed by 72-hour forecast using NCEP NAM 0Z cycle from NOMADS GDS at 02:30 UT (10:30 pm EST) Forecast complete and transferred to THREDDS by 09:00 EST Effective forecast is ~ 60 hours 11 We overlap analysis cycles, performing a new analysis and new forecast every day

12. Accessing the data http://osmc.noaa.gov/erddap/tabledap/OSMCV4_DUO_SURFACE_TRAJECTORY.nc? platform_id,platform_code,platform_type,time,longitude,latitude,sst &platform_type=“DRIFTING BUOYS (GENERIC)” &time>=2013-1001T00:00:00Z&time<=2013-10-31T00:00:00Z Live Access Server netCDF file

13. Accessing the data http://osmc.noaa.gov/erddap/tabledap/OSMCV4_DUO_SURFACE_TRAJECTORY.nc? platform_id,platform_code,platform_type,time,longitude,latitude,sst &platform_type=~“DRIFTING BUOYS (GENERIC)|VOSCLIM” &time>=2013-1001T00:00:00Z&time<=2013-10-31T00:00:00Z Live Access Server netCDF file

14. http://osmc.noaa.gov/erddap/tabledap/OSMCV4_DUO_SURFACE_TRAJECTORY.kml? platform_code,platform_type,time,longitude,latitude,sst &platform_code=56568 &time>=2013-11-01T00:00:00Z Accessing the data Google Earth kml file

15. Accessing the data Google Earth kml file

16. Accessing the data iPython notebook OPeNDAP URL http://osmc.noaa.gov/erddap/tabledap/OSMCV4_DUO_SURFACE_TRAJECTORY? platform_code,time,longitude,latitude,sst &time>=2013-11-28T00:00:00Z&time =50&longitude<=100 &latitude>=-10&latitude<=21

17. Moving Forward Improve performance Use ERDDAP to create DSG netCDF files Ingest those files back into ERDDAP Create access to dataset based upon the netCDF files Include delayed-mode data Serve through ERDDAP Allow comparison between NRT and delayed mode data

18. Thank you! OSMC: www.osmc.noaa.govwww.osmc.noaa.gov OSMC ERDDAP: osmc.noaa.gov/erddap/ ERDDAP: coastwatch.pfeg.noaa.gov/erddap/ LAS: ferret.pmel.noaa.gov/LAS Kevin.M.O’Brien@noaa.gov