U.S. Department of the Interior U.S. Geological Survey U.S. National Water Census “Cyber –...
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Transcript of U.S. Department of the Interior U.S. Geological Survey U.S. National Water Census “Cyber –...
U.S. Department of the InteriorU.S. Geological Survey
U.S. National Water Census “Cyber – Platform” Update
Progress and challenges to overcome in realizing a high resolution, consistent water budget for the U.S.
David L Blodgett, U.S. Geological Survey
Scope· Support a national web portal for information
about water availability, quality, and ecological integrity. – High Res Water Budget
· Support a platform for nationally consistent multi-scale hydrologic and related modeling support.
· Modeling-Decision Support Lifecycle
Modeling-decision support lifecycle
1. Models built using enterprise data and services.
2. Calibrated model parameters and output contributed back to community portal.
3. Model input and output tracked and available to decision support via common standards.
National Water Census portal proposed architecture
Primary Interface StandardsName Abbrev. Purpose
Catalog Service for the Web using ISO Encoded Metadata
CSW/ISO Discovery metadata and data service information
Web Map Service WMS Provides screen resolution visualizations of geographic data.
Web Coverage Service WCS Provides arbitrary resolution gridded* data
Opensource Project for a Network Data Access Protocol
OPeNDAP Provides access to any explicitly indexed data esp. multidimensional data.
Web Feature Service WFS Allows query of and access to entities - (their geometry and attributes)
Sensor Observation Service
SOS Provides query mechanisms unique to the needs of time-series data access
Web Processing Service
WPS Provides a mechanism to describe and execute processing algorithms via a web based API
Developed Components:
· Brokered “uploader” for THREDDS-based SOS
· Scientist - written (R) statistics run as generalized WPS algorithm to generate Hydro/Ecoflow statistics.
· CSW-Transactions to track artifacts and versions.
Service Integrations to Note:
· ISO 19115/119-CSW Metadata Drives App.
· Feature time series – WMS/WFS and SOS.
· WPS outputs SOS or other web service.
· WPS “data-broker” consumes SOS to calculate Hydro/Eco statistics.
Primary Challenges:· How to utilize NHD+ (Lower Res, Clean, w/ catchments)
and NHD High Res (Most updated, only streams) in the same system.
· How to tie well water withdrawals to hydrography for water use evaluation.
· Relating observation and model result services to their feature representations.
U.S. Department of the InteriorU.S. Geological Survey
Thank you!
Dave Blodgett and Nate Booth
USGS Center for Integrated Data Analytics (CIDA)
Ph: 608-821-3899
Email: [email protected]