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Kevin O’Brien University of Washington/JISAO NOAA/PMEL Interoperable Access to Near Real Time Ocean Observations with the Observing System Monitoring Center.

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Presentation on theme: "Kevin O’Brien University of Washington/JISAO NOAA/PMEL Interoperable Access to Near Real Time Ocean Observations with the Observing System Monitoring Center."— Presentation transcript:

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, 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 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 platform_id,platform_code,platform_type,time,longitude,latitude,sst &platform_type=“DRIFTING BUOYS (GENERIC)” &time>= T00:00:00Z&time<= T00:00:00Z Live Access Server netCDF file

13 Accessing the data platform_id,platform_code,platform_type,time,longitude,latitude,sst &platform_type=~“DRIFTING BUOYS (GENERIC)|VOSCLIM” &time>= T00:00:00Z&time<= T00:00:00Z Live Access Server netCDF file

14 platform_code,platform_type,time,longitude,latitude,sst &platform_code=56568 &time>= T00:00:00Z Accessing the data Google Earth kml file

15 Accessing the data Google Earth kml file

16 Accessing the data iPython notebook OPeNDAP URL platform_code,time,longitude,latitude,sst &time>= T00:00:00Z&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: OSMC ERDDAP: osmc.noaa.gov/erddap/ ERDDAP: coastwatch.pfeg.noaa.gov/erddap/ LAS: ferret.pmel.noaa.gov/LAS


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