1. Water Quality in a Stream Reach SOCoP 2012 Workshop Topic Gary Berg-Cross Nov. 29-30, 2012 U. S. Geological Survey National Center 12201 Sunrise Valley Dr., Reston VA

2. Originations of Topic The idea of Stream ecosystem "site" & water quality (structure and function) emerged from conversations at the Research Data Alliance workshop (rd-alliance.org) in Ballston VA 9/12rd-alliance.org Brian Wee, Gary Berg-Cross (Bob Chen Columbia) This “scenario topic is based in part by work inspired by Neon Educational System for Data Access and Analysis involving Dennis Ward ( educational technologist with NEON Inc.), and the RPI team, investigated how nutrient pollution impact stream ecosystems locally & nationally.  That was educationally oriented SOCoP workshop would be directed more at modeling the situation to support data representation and interoperability across the various data sets (TBD) involved. Note: Related to ideas of streams as container of surface water (studied by Torsten Hahmann & Boyan Brodaric) which might serve as foundation. Torsten Hahmann, Boyan Brodaric: The Void in Hydro Ontology. FOIS 2012: 45-58 Torsten Hahmann FOIS 2012

3. Strategy As time permitted Brian’s would work on Stream-Environmental- Ecology Health Scenario with observations Example, might have a EPA water quality observations which may overlap with the geo-region defined by a stream reach Idea was to explore lightweight approach that might develop relevant vocabularies that can be modeled and formalized Leverage existing work such as RPI effort participated in by Brian Wee and James Wilson Leverage EPA models of water quality parameters as well as related USGS stream gage data, NEON aquatic measurement data, and EPA models hopefully this might be of interest to a good cross section of folks.

4. Scenario: Water quality might define a starting focus. EPA, for example, might collect organic content of streams. USGS has relevant data too on water quality and from stream gauges and these might be integrated. Relevant Concepts then might include the concepts of Ecological Content identified as part of that work is Stream ecosystem structure and function along with such related ideas as: Water quality and water integrity indicators, : http://water.usgs.gov/nawqa/http://water.usgs.gov/nawqa/ organic nutrients at point X and 50 feet down from X, biological indicators, Water chemistry, habitat and watershed characteristics can affect macroinvertebrate populations. The U.S. Environmental Protection Agency has published data on a number of these pollutants, and the information can generally be found at http://www.epa.gov. macroinvertebrate index EPA barcoding: for DNA analysis of critters found in the stream

5. Stream Reach: Natural Aggregation into Water System Platt ? Part of

6. Start on Modeling Situation Reach Point R 101 Reach Point R 102 Similar/uniform Characteristics streamReach hasProperty, uniform Void of water Monitoring

7. RPI Model Work http://tw.rpi.edu/web/project/NESDAA/Use_Cases/

8. Propositions from NEON NESDAA Stream Ecosystem Health Model Stream partOf Watershed Stream hasSamplingSite SamplingSite hasMeasurement Indicator, Stream has EcosystemHealth Biodiversity part of EcosystemHealth Stream IsA gml:Feature, ChangesInBiodiversity is a Change Watershed hasStream Stream, EPT is a Indicator, USGSNNNNNN is a SamplingSite, Eutrophication is a ProblemArea, ProblemArea isAssessedUsing Indicator