Data Interchange Content Models

This is a data interchange content model for an observation of the chemical composition of an aqueous fluid. A header content model for sample characterization, location, and analysis metadata is included to assist users finding analyses for specific samples, locations, time intervals, etc. Typically water temperature at the time of sampling are recorded along with sample data.  Several 'suites' of analytes representing common analysis results are defined, with the intention that an implementation of the content model would offer several observation feature types, each of which consists of the header fields combined with the analytes for a suite. A content type for reporting results for a single analyte is also proposed, with an abbreviated header; this could be implemented for services similar to the EPA storet data services. In this approach a single analysis result is delivered as a collection of observation records, each with the same AnalysisURI and reporting single analyte.

Direct use features describe facilities that utilize geothermal energy directly without transformation to electricity. See the NREL Geothermal Direct Use web page for more information. The template here is based on the Direct Use Site spreadsheet provided by the GeoHeat center at the Oregon Institute of Technology.

This spreadsheet indicates the content for fault features. The model is from the IUGS CGI interoperability working group. See https://www.seegrid.csiro.au/wiki/bin/view/CGIModel/GeoSciMLThematicView.... This schema is a view of GeoSciML data that denormalizes the data and concatenates complex property values into single, human-readable, labels and returns single, representative, values from controlled vocabularies for multi-valued properties that can be used when generating thematic maps, or portrayals, of the data. It is separate to, but harmonized with, GeoSciML and conforms to the level 0 of the Simple Features Profile for GML (link). Labels will be 'free-text' fields that will be, in robust services, well-structured summaries of complex GeoSciML data, while the representative thematic properties will be URIs of concepts in a controlled vocabulary. There may also be links, via identifier URIs, to full GeoSciML representations of the geologic features.

This spreadsheet indicates the content for Geologic Unit features. The model is based on the IUGS CGI interoperability working group. See https://www.seegrid.csiro.au/wiki/bin/view/CGIModel/GeoSciMLThematicView.... This schema is a view of GeoSciML data that denormalizes the data and concatenates complex property values into single, human-readable, labels and returns single, representative values from controlled vocabularies for multi-valued properties that can be used when generating thematic maps, or portrayals, of the data. It is separate to, but harmonized with, GeoSciML and conforms to the level 0 of the Simple Features Profile for GML (link). Labels will be 'free-text' fields that will be, in robust services, well-structured summaries of complex GeoSciML data, while the representative thematic properties will be URIs of concepts in a controlled vocabulary. There may also be links, via identifier URIs, to full GeoSciML representations of the geologic features. The geologic unit feature content also conforms closely to the content in the USGS-AASG NCGMP09 database design for a description of map units. These features are essentially geographically located descriptions of outcrop to map scale units of rock--including lithologic composition, age, internal structure (bedding, foliation etc.) and genesis. The content model might be associated with map units on a geologic map, individual polygons (on a map) or borehole intervals (in a stratigraphic log), or with point locations to describe outcrops in field data. For descriptions associated with maps or polygons (outcrop areas), location uncertainty properties are not included.

This spreadsheet contains the content requested for records representing Fluid Production reports and observations. Design is focused on production/injection wells associated with Power Plant facilities, portrayed as geospatial points with an associated production interval date. This dataset for the geothermal data system is intended as a tool to identify records associated with geothermal plants in production (or injection) or other facilities that may be of interest for coproduction of geothermal fluid. The content model does not include detailed geologic information that would be important for an analysis; such information should be accessed by included related resource links.

**PLEASE NOTE:**

This spreadsheet is still under review so you might want to wait for upates or contact us before using it.

This spreadsheet indicates the content requested for observation features representing Heat Flow measurements. The content model is based on specifications gathered from the SMU Heat Flow database, and has been extended to include the specifics of Heat Flow data from other parties.

Minimal required features include Observation URI, Well Name, Header URI, Label, County, State, Latitude and Longitude Degrees, Source, Driller Depth, Interval, Thermal Conductivity, Gradient, Heat Flow, and Heat Flow Method.

This spreadsheet specifies the content elements requested for AASG geothermal data interoperable web services for description of lithology log intervals associated with a borehole. Each interval has a top and a bottom, measured from the ground surface (convention for interoperability). Each interval has a geologic unit description that will be identical with the content associated with polygons on a geologic map.

This template defines the content model for a service that delivers seismic event hypocenter observations. Many of these will be standard map location and IDs, but other information may be delivered. Much of the variation will concern procedures used to recorded events, citations, and possible other collected data that may be useful for geothermal resource research. The seismic event hypocenter template should be used when compiling geo data from maps and field data. The content model presented here is intended to present key information necessary to query a seismic event hypocenter observation service and to evaluate the reported activity and potentially related features (faults).

This spreadsheet indicates the content requested for basic data characterizing a hot spring feature for the AASG geothermal data project. Typically, water temperatures are recorded with other information such as water quality or chemical analysis from a particular spring. The temperature and flow rate reported here are meant to be generalized characterization. Other observation services should be used to report time series of temperature or flow measurements.  Chemical analytical data is also reported by a separate observation service. This sheet may be used to compile multiple temperature or flow rate observations for individual springs as well.