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Proceedings of OceanObs'09: Sustained Ocean Observations and Information for Society

COMMUNITY WHITE PAPER10.5270/OceanObs09.cwp.31

Integrating Quality Assurance and Quality Control into Open GeoSpatial Consortion Sensor Web Enablement

Janet Fredericks(1), Mike Botts(2), Luis Bermudez(3), Julie Bosch(4), Philip Bogden(5), Eric Bridger(5), Tony Cook(2), Eric Delory(6), John Graybeal(7), Sarah Haines(8), Anne Holford(9), Carlos Rueda(7), Jordi Sorribas Cervantes(10), Feng (Barry) Tao(11), Christoph Waldmann(12)

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As standards in best practices in data quality assurance and quality control evolve, methods for discovery and transport of information relating to these practices must also be developed. An observation's history, from sensor descriptions, processing methods, parameters and quality control tests to data quality flags and sensor alert flags, must be accessible through standards-based web services to enable machine-to-machine interoperability. This capability enables a common understanding and thus an underlying trust in the expanding world of ocean observing systems. For example, a coastal observatory conducts several tests to evaluate and improve the quality of in situ time series data (e.g. velocity) and then generate an oceanic property (e.g. wave height). Using content-rich web-enabled services, a data aggregation center will be able to determine which tests were conducted, interpret data quality flags and provide value added services, such as comparing the parameter with those from near-by observations. These additional processing steps may also be documented and sent along with the data to other participating ocean observing systems throughout the world. By utilizing standards-based protocol (Open Geospatial Consortium (OGC) frameworks) and well-defined community adopted QA/QC (Quality Assurance/Quality Control) tests and best-practices (Quality Assurance in Real-Time Oceanographic Data - QARTOD), information about the system provenance, sensor and data processing history needn't be lost. Are data providers ready, willing and able to describe sensors and processing history? And can we transport the information using a framework that offers semantic and syntactic interoperability? The group developing this community white paper has demonstrated that it can be and is being done. A project called Q2O, QARTOD to OGC (Open Geospatial Consortium), bridges the QARTOD community with the OGC community to demonstrate and document best practices in the implementation of QA/QC within the OGC Sensor Web Enablement (SWE) framework. This paper describes this demonstration project and documents the existence of parallel related efforts. With adequate funding to enable the strengthening and broadening of these communities, a solid foundation for ocean observing systems will be built with the assurance that best-practices of data quality are communicated in a meaningful way.

1Woods Hole Oceanographic Institution, MS 9, 360 Woods Hole Road Woods Hole MA 02543 USA
2University of Alabama in Huntsville, National Space Science and Technology Center, 320 Sparkman Drive, Huntsville, AL 35805 USA
3Southeastern Universities Research Association (SURA), 1201 New York Ave. NW Suite 430, Washington DC 20005 USA
4National Coastal Data Development Center, NOAA (National Oceanic and Atmospheric Administration), Stennis Space Center, MS 39529 USA
5Gulf of Maine Ocean Observing System, 350 Commercial St, Portland, ME 04101-5509 USA
6dBscale Sensing Technologies, C/ Leon y Castillo 25, Telde 35200, Canary Islands, Spain,
7Monterey Bay Aquarium Research Institute, 7700 Sandholdt Rd, Moss Landing, CA 95039-9644 USA
8University of North Carolina, Chapel Hill, NC 27599-3300 USA
9University of Aberdeen, Newburgh · Aberdeenshire AB41 6AA
10Unidad de Tecnologia Marina, Consejo Superior de Investigaciones Científicas (CSIC), 08003 Barcelona, Spain
11National Oceanography Centre Southampton, University of Southampton, Waterfront Campus, European Way, Southampton SO14 3ZH, United Kingdom
12University of Bremen/MARUM (Center for Marine Environmental Sciences), Leobener Strasse, P.O. Box 330440, 28334 Bremen, Germany

Correspondence should be addressed to E-mail: jfredericks@whoi.edu

This paper shall be cited as:

Fredericks, J. & Co-Authors (2010). "Integrating Quality Assurance and Quality Control into Open GeoSpatial Consortion Sensor Web Enablement" in Proceedings of OceanObs’09: Sustained Ocean Observations and Information for Society (Vol. 2), Venice, Italy, 21-25 September 2009, Hall, J., Harrison, D.E. & Stammer, D., Eds., ESA Publication WPP-306, doi:10.5270/OceanObs09.cwp.31

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