Near Real-Time Ocean Observations Online Data Management within the Southeast Atlantic Coastal Ocean Observation System (SEACOOS) Charlton Purvis, University of South Carolina, a SEACOOS partner

SEACOOS was initiated in 2002 with ONR funding to develop a coastal ocean information system for FL, GA, SC and NC. SEACOOS Over-Arching Goal: To significantly increase the quantity and quality of environmental information from the coastal ocean of the SE U.S. and facilitate its use in a wide range of societal, scientific, and educational applications.

Observational platforms contributed by SEACOOS partners Observational platforms contributed by SEACOOS partners

SEACOOS modeling Coordinating model simulations for the entire region

The (tiny) data management big picture

Laundry list of core technologies Base environment Base environment Linux Linux Apache Apache Perl & PHP Perl & PHP Mapping & imaging Mapping & imaging University of Minnesota’s MapServer University of Minnesota’s MapServer ImageMagick ImageMagick AniS & Gifsicle AniS & Gifsicle Gnuplot Gnuplot Data storage PostgreSQL PostGIS Filesystem

Data aggregation & storage Aggregation format flavors Aggregation format flavors netCDF (in situ and remotely-sensed data) SEACOOS CDL netCDF (in situ and remotely-sensed data) SEACOOS CDLCDL PNG (RS imagery) PNG (RS imagery) Storage Storage Relational database (in situ, model output, some RS) Relational database (in situ, model output, some RS) Files (RS imagery) Files (RS imagery) Technology Technology Perl Perl PostgreSQL & PostGIS PostgreSQL & PostGIS

Normalization Reporting time varies Reporting time varies In-situ data In-situ data E.g. daily, hourly, half- hourly, every 10 minutes E.g. daily, hourly, half- hourly, every 10 minutes Remotely-sensed data Remotely-sensed data E.g. twice daily E.g. twice daily Technology Technology PostgreSQL & PostGIS PostgreSQL & PostGIS

Visualization : interactive mapping Production site Production site Production site Production site Development site Development site Development site Development site Technology Technology MapServer MapServer ImageMagick ImageMagick Perl & PHP Perl & PHP

In-situ sea surface temperature and winds Mouse overs Observation time series Point queries

Radar surface currents & modeled depth-avg. currents Ad-hoc animations

Remotely sensed QuikSCAT & in-situ winds

Remotely sensed Chl-A & true color composite

In-situ sea surface temperature (again) Sparse perhaps?

In-situ & modeled OI sea surface temperature Models fill the gaps

In-situ & modeled OI sea surface temperature Ever-growing domains

Visualization : graphs & animations Ad-hoc time-series graphs Ad-hoc time-series graphs Ad-hoc animations Ad-hoc animations Ad-hoc animations Ad-hoc animations Technology : MapServer | ImageMagick Gnuplot | Gifsicle |AniS Technology : MapServer | ImageMagick Gnuplot | Gifsicle |AniS

Dissemination (it is the technology) OPeNDAP (DODS) data access OPeNDAP (DODS) data access OGC-friendly: WMS, WFS OGC-friendly: WMS, WFS pick a layer, any layer pick a layer, any layer pick a layer, any layer pick a layer, any layer

Dissemination : example 1 Integrated Ocean Observing System hurricane demo Integrated Ocean Observing System hurricane demo Integrated Ocean Observing System hurricane demo Integrated Ocean Observing System hurricane demo SEACOOS Remotely-Sensed Layers WMS-Enabled for Hurricane Charley (see OpenIOOS web site -- * modis_ergb_low (USF) * modis_rgb_low (USF) * modis_rgb_hi_chesapeake_bay (USF) * modis_rgb_hi_florida_bay (USF) * modis_rgb_hi_miss_plume (USF) * modis_rgb_hi_suwannee_river (USF) * modis_rgb_hi_tampa_bay (USF) * oi_sst (USF) * modis_sst (USF) * avhrr_sst (USF) * modis_chl (USF) * quikscat_wind (JPL) * met_wind (UNC) * met_air_pressure_contour (UNC) * tamu_level_III (TAMU Mesonet)

Dissemination : example 2 NC OneMap Viewer website/NC_OneMap/ viewer.asp NC OneMap Viewer website/NC_OneMap/ viewer.asp NC OneMap Viewer NC OneMap Viewer

Open source : obstacles & sustenance Obstacles Obstacles Documentation & packaging Documentation & packaging Stereotypes in a proprietary world Stereotypes in a proprietary world Sustenance Sustenance Communication Communication Listservs and twikis and bulletin boards Listservs and twikis and bulletin boards Listservsbulletin boards Listservsbulletin boards Information sharing protocol standards Information sharing protocol standards OGC OGC

OGC sustenance? Prove it! Log layer usage Log layer usage Log layer usage Log layer usage Example layer : MODIS RGB composite Example layer : MODIS RGB composite Available via SEACOOS interactive maps and WMS Available via SEACOOS interactive maps and WMS

Layer usage logging MODIS RGB composite total hits = 652 MODIS RGB composite total hits = 652 Interactive map hits = 105 Interactive map hits = 105 WMS hits = 547 WMS hits = 547

An open source attitude SEACOOS data management SEACOOS data management Direct result of combined effort from academia, government, and the private sector Direct result of combined effort from academia, government, and the private sector Providing a foundation for other ocean observing systems to possibly adapt and build upon Providing a foundation for other ocean observing systems to possibly adapt and build upon Plenty of miles to go with more room to grow! Plenty of miles to go with more room to grow! Who am I? Who am I? Charlton Purvis, University of South Carolina, SEACOOS Charlton Purvis, University of South Carolina, SEACOOS Happy to help and share. Happy to help and share.