U.S. Environmental Protection Agency WATERS Status Update .
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Transcript of U.S. Environmental Protection Agency WATERS Status Update .
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U.S. Environmental Protection Agency
WATERS Status UpdateWATERS Status Update
www.epa.gov/waterswww.epa.gov/waters
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2U.S. Environmental Protection Agency
Available WATERS DataAvailable WATERS Data
• National Hydrography Dataset (NHD)• NHDPlus Catchments • Watershed Boundary Dataset (WBD)• Water Program Features indexed to the NHD:
– Assessed Waters– Impaired Waters– Beaches– Combined Sewer Overflows– Clean Watersheds Needs Survey– Fish Consumption Advisories
– Clean Water State Revolving Fund Projects
– No Discharge Zones– Permitted Dischargers– Total Maximum Daily Loads– Water Quality Standards
Additional Information: http://www.epa.gov/waters/data/prog.html
http://www.epa.gov/waters/doc/auxiliary/index.html
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3U.S. Environmental Protection Agency
WATERS Data Web PagesWATERS Data Web Pages
• Contains detailed information about the Reach Address Database, NHD, NHDPlus, and other supplemental tables.
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4U.S. Environmental Protection Agency
WATERS Data Web PagesWATERS Data Web Pages
• Web page contains hyperlinks to Auxiliary Dataset information.
– Watershed Boundary Dataset
– Tiger 2008 (subset)
– NHDPlus Smoothed
– Regional layers
– National Atlas (subset)
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5U.S. Environmental Protection Agency
Available WATERS ServicesAvailable WATERS Services
• Web and Database Services
– Validate and Convert Lat/Long Service
– Get Entities by Lat/Long, HUC, and Radius Service
– Get Program Waters Entities
– NHD Event Indexing Service *
– NHD Point Indexing Service *
– Identify Service
– Total Waters by State, HUC, FCODE, and Bounding Box
– Name Service
– Upstream/Downstream Service
– Navigation Service *
* Currently database only service
Additional Information: http://www.epa.gov/waters/geoservices/index.html
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6U.S. Environmental Protection Agency
WATERS Services Web PageWATERS Services Web Page
• Services web page contains high-level overview information about available services.
• Indicates if service is available as web and/or database service.
• Provides link to SOAP Service Endpoint and WSDL.
• Provides information about underlying database location and name.
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7U.S. Environmental Protection Agency
WATERS Services Web PageWATERS Services Web Page
• Services web pages contain detailed level information about individual services.
– Description of the service
– Input parameters
– Example call to the database service
– Sample SOAP Request
– UML object diagram
– Output object
– Sample SOAP Response
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8U.S. Environmental Protection Agency
WATERS Services Web PageWATERS Services Web Page
• Services web pages contain detailed level information about individual services.
– Description of the service
– Input parameters
– Example call to the database service
– Sample SOAP Request
– UML object diagram
– Output object
– Sample SOAP Response
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9U.S. Environmental Protection Agency
WATERS Services Web PageWATERS Services Web Page
• Services web pages contain detailed level information about individual services.
– Description of the service
– Input parameters
– Example call to the database service
– Sample SOAP Request
– UML object diagram
– Output object
– Sample SOAP Response
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10U.S. Environmental Protection Agency
WATERS Services Web PageWATERS Services Web Page
• Services web pages contain detailed level information about individual services.
– Description of the service
– Input parameters
– Example call to the database service
– Sample SOAP Request
– UML object diagram
– Output object
– Sample SOAP Response
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11U.S. Environmental Protection Agency
Current EnvironmentCurrent Environment
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12U.S. Environmental Protection Agency
Future DirectionFuture Direction
• GIS services– Rollout ArcGIS 9.3 (9.3.1)
– Enable ArcGIS based KML and WFS services
– Enable ArcGIS REST interface
– Configure caching for popular projections
– Update RAD Download service functionality
– Reorganization of available services
– Reevaluation of WATERS Metadata
• Other– Release Google Earth based KML files, ArcMap Template, and
ArcGIS Explorer map document
– Develop ArcGIS Explorer custom tasks that leverage OW Services
– Migrate to Oracle11g to overcome Oracle Spatial issues
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13U.S. Environmental Protection Agency
Future DirectionFuture Direction
• Continued focus on web services– Basin delineation service– Deployment of SOAP based versions of existing NHD Event
Indexing Service, NHD Point Indexing Service, and Navigation Service
– New lightweight HTTP gateway service endpoints• KML, JSON, GeoJSON and user provided style sheet
output options
• WATERS JavaScript Wrapper API– Similar to ERSI’s JavaScript API for Google Maps and Virtual
Earth– Avoids cross-site browser scripting limitations when accessing
services from different domains
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14U.S. Environmental Protection Agency
What it means to usersWhat it means to users
• Users can develop light weight mapping clients that easily consume OW services.
• The example screenshot shows a light weight client making a call to the OW Navigation Service requesting navigation results 25 miles upstream of a point location.
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15U.S. Environmental Protection Agency
What it means to usersWhat it means to users
• Users can develop light weight mapping clients that easily consume OW services.
• The example screenshot shows a light weight client making a call to the NHD Point Indexing Service.
• 1) Shows the results of a snap operation.
• 2) Shows the results of a raindrop operation.
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16U.S. Environmental Protection Agency
What it means to usersWhat it means to users
• Users can develop light weight mapping clients that easily consume OW services.
• The example screenshot shows a light weight client making a call to a prototype basin delineation service that dissolves smoothed catchments into a resulting basin of interest.
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17U.S. Environmental Protection Agency
What it means to usersWhat it means to users
• Users can display web service results using customizable style sheets.
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18U.S. Environmental Protection Agency
DemonstrationDemonstration
• Access to framework geospatial datasets stored in the WATERS Database and to general purpose interactive service panels.
• Dialog boxes providing access to tools, services, and information, such as NHD feature name query, total waters, up/downstream navigation, watershed reports, ATTAINS reports, etc.
• Access to indexed water program features, with hyperlinks to additional attributes, and context sensitive analysis services, such as up/downstream navigation and watershed reports.
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19U.S. Environmental Protection Agency
Future EnvironmentFuture Environment
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20U.S. Environmental Protection Agency
Future DirectionFuture Direction
• Interface– OW is currently evaluating interface options being used by
EPA, other agencies and industry.– OW plans to develop a light weight interface that demonstrates
available services and data sets.
• Outreach– WATERS web site restructuring– Notification service (RSS, e-mail, etc)– Webinars– Presentations– Training sessions– White papers
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21U.S. Environmental Protection Agency
Future DirectionFuture Direction
• Outreach (Code)– Cut & paste ready code
samples that illustrate how to use OW based services. Similar to Google AJAX Playground, Virtual Earth SDK, ESRI’s JavaScript API samples.
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22U.S. Environmental Protection Agency
Additional InformationAdditional Information
• Pravin Rana (OW IM PMO)Phone: (202) 564-1909
E-mail: [email protected]
• Brad CooperPhone: (703) 852-3586
E-mail: [email protected]
• Waters SupportE-mail: [email protected]