Develop an abstract(s) to submit for the Coastal GeoTools conference
"Coastal GeoTools is the conference series that focuses on the technical information needs of the nation's coastal programs. The theme for 2009 is "Building the Digital Coast", a new initiative that provides easy access to organized and relevant data, tools, and technical training."
March 2-5, 2009 - Myrtle Beach, South Carolina
See http://www.csc.noaa.gov/geotools/
Abstracts submitted by 10/3: Title (< 25 words) + Abstract (< 250 words)
Themes for 2009 are: Land Use, Coastal Conservation, Hazards, Water Quality, Marine Planning, and Climate Change
Abstract Submitted (hazards theme)
Development of a near real-time geospatial data aggregation and service architecture for the Southeast Coastal Ocean Observing Regional Association.
As the southeast regional IOOS component, the SouthEast Coastal Ocean Observing Regional Association (SECOORA) has developed a near real-time data aggregation and service architecture to process coastal observations for distribution into coastal planning, hazard, and environmental GIS applications. This work leverages the Research and Development efforts of the SEACOOS project around dataflow automation, observation geodatabase design, geoweb applications, and map services through a focus on simplicity, performance, and efficient re-use of files and services. The presentation provides an overview of the geospatial framework supporting the SECOORA data management enterprise, a collaborative effort by the SECOORA Data Management Coordinating Committee.
Aggregation
SECOORA has developed a data content standard for constituent data providers with implementation in multiple formats (NetCDF, XML). The standard relies on a controlled vocabulary that is being expanded to include QA/QC tests, flags, and sensor level metadata.
Storage
SECOORA has developed an extensible geodatabase schema for coastal observations in various forms. Implementation of this new schema has been in PostgreSQL + PostGIS and the lightweight SQLite database.
Discovery
Interactive web mapping applications have been developed using OpenLayers to bundle existing OGC web services for data discovery and exploration. SECOORA is developing a service cache mechanism to boost performance and restrict direct connections to the geodatabase.
Distribution
SECOORA has developed a suite of OGC web services and pre-cached files for distribution. Data services rely on the WMS, WFS, and SOS standards via MapServer and custom scripting. Common file formats are distributed reusing internal transport, storage, and GIS formats.
Previous Rough Outline
Aggregation
Improving the legacy data content standard (SEACOOS CDL) as a more generic data model.
- Implementation in NetCDF
- Implementation in XML
- A transfer schema for standardized supply to/from the database (ObsKML).
- A metadata schema for transport of platforms and sensor metadata (DSI).
- Addition of QA/QC tests, flags, and metadata
Storage
A new generalized database schema for in-situ observations (Xenia).
- Implementation on a lightweight, file-based platform (SQLite).
Discovery
Web mapping using the OpenLayers framework to re-purpose existing OGC web services for data discovery.
- Service caching using TileCache to enable faster OGC web layer performance and controlling direct connections to the database.
Distribution
Data services using WMS, WFS, and SOS via MapServer and custom scripting.
- File-based data sourcing for high-volume data. Performance optimization using spatial indexes, overviews, and internal tiling.
File-based data distribution
- Using OGR for GIS format translation and re-purposing existing transport and storage formats (ObsKML, KML, SQLite).
