ELFIE Use Cases

Environmental Linked Feature Interoperability Experiment (ELFIE)

Use Cases Overview

Purpose, Analysis, Implementation, and Demonstration

These slides were prepared for an OGC-TC demonstration of ELFIE outcomes.
These materials should be considered preliminary and subject to change.

Use cases used to drive many aspects of the project.

Analysis:

• Scoping and early architectural discussion
• Analysis of data and existing interfaces
• Understanding real world users and implementers

Implementation:

• Driving requirements for implementations
• Contextualizing demonstration of outcomes

Treated as if we were planning to implement.

We were delusional, but it made for great discussion.

• River network linked data to address hydrologic drought and ecology
• Flood risks and impacts
• Water quality impacts monitoring of mining activities
• Surface water impacted groundwater level forecasting

Simple index of hydrography and observations for a watershed

Data: Watershed Boundary, hydrographic network, stream gage, water quality

Demo: Compiled into a simple map viewer

Visualization of watershed and water budget data.

Data: Watershed boundary, hyrographic network, outlet location, stream gage, and water budget time series

Demo: Built into a visualization suited to a broad audience

BRGM Ground/Surface water data round trip

Data: Aquifer, wells, piezometers, waterbodies, streamgages. Features description, links, and associated observations

Demo: prototype of static JSON-LD files based on BRGM Goundwater Information Network content

A comprehensive use case starting from a borehole/well its piezometer, the monitored aquifer and the resulting groundwater observations.

SensorThings based observational data provision

Data: Sensors, their observations, and features they observe

Demo: implemented in a prototype system for access to ELFIE structured JSON-LD transformed from a SensorThings service.

Access to the ELFIE objects is enabled by resolvable http formated uri-guids, all associations are represented via these uri-guids, thus data structure totally aligned with the static ELFIE examples available from GITHUB, the data can be visualized via the BRGM Linked data Viewer

USGS Prototype Station Pages

Data: hydrolocation type and basic feature identification info

Demo: Working toward modern station pages experimenting with linked feature content

US/Canada Groundwater Surfacewater Interoperability Pilot

Data: Catchments, aquifers, wells, stream gages, waterbodies

Demo: Visualized in an experimental app for a cross border data exchange

When ELFIE is complete, this presentation will include links to demonstration applications.