Computers & Geosciences, Volume 87, February 2016, Pages 67–75

By Lenka Kociánová and Rostislav Melichar

“Highlights:

• Tools for orientation analysis of structural data were developed for ArcGIS 10.2.
• OATools analyze directional data in relation to their spatial information.
• Both angular and spatial characteristics of the data can be explored in ArcGIS.
• The structural conditions of the crystalline complex are described using the OATools.

“This paper describes Orientation Analysis Tools (OATools), a new add-in, which has been developed for ArcGIS software (ESRI) to allow the spatial analysis of structural data. These tools bring a complex approach to structural data analysis that highlights the spatial aspect of oriented data. In this paper we introduce the functionality of this add-in, which allows users to plot selected data in azimuthal projection, calculate and plot fold axes, construct density distribution diagrams and rose histograms, and create maps of spatial averages and fold axes.

(a) Svratkaand Polička crystalline units in the Bohemian Massif (Czech Republic). Metamorphic foliation plotted in azimuthal projections (equal-area) for particular sectors (Geologicalmap1:500,000, Czech Geological Survey(2014)). (b) Field data collected by Melichar (1995): metamorphic foliation (Geological map 1:500,000, Czech Geological Survey (2014)).

“There is a link between projections and maps; therefore, it is possible to select point data in the projection and see their location on the map, and vice versa. Practical use of these tools is demonstrated in a case study of the Svratka and Polička crystalline units (Eastern margin of the Bohemian Massif, Czech Republic), where a large dataset was collected. Using OATools the structural conditions were explored. Major changes in foliation dip directions were detected and the axial surfaces of the folds were determined. We also demonstrate the benefit of applying these tools, together with the potential of GIS with respect to spatial data queries, storage, and visualization.”

• More information

The Open Geospatial Consortium (OGC) announces a new OGC Interoperability Program project called the “Arctic Spatial Data Infrastructure Standards and Communication Pilot” (Arctic SDI Pilot).

The Arctic SDI Pilot is sponsored by the United States Geological Survey (USGS) and Natural Resources Canada. The goal is to demonstrate to Arctic stakeholders the diversity, richness and value of a Spatial Data Infrastructure (SDI) based on Web services and standardized exchange formats in helping address critical issues impacting the Arctic. Stakeholders include national and pan-Arctic science and monitoring organizations and decision makers engaged in Arctic research, social and economic policy, and environmental management. The organizations participating in the ArcticSDI Pilot will document and publicize best practices that can support a rich network of Web-accessible data and service resources for the Arctic.

The pilot has two phases. Phase 1, an OGC Interoperability Program Concept Development study, began in December 2015. In Phase 1, project planners are building an inventory of currently available Arctic geospatial data layers and Web services and defining the Arctic SDI architecture. This work will be supported by partners engaged in industry, research, and numerous jurisdictions A Request for Information will be published in January 2016 to elicit further ideas, experiences, and projects in industry, research institutions and public administration to make maximal use of the ArcticSDI and to develop it further.

The Arctic SDI Pilot Phase 1 will also provide direct input into OGC’s major Testbed 12 Interoperability Program initiative. USGS has indicated that sponsor funding will be made available for Testbed 12 to test and further develop components identified in the Arctic SDI pilot. Through this collaboration, arctic stakeholders and the Arctic SDI will leverage and benefit from the leading edge interoperability research, development and outreach that is ongoing in the OGC’s series of major testbeds.

All findings from Phase 1 will serve as input for Phase 2, which will be an OGC Interoperability Program Pilot Project. OGC pilot projects apply and test OGC Standards in operational applications using Standards Based Commercial Off-The-Shelf (SCOTS) products that implement OGC Standards. Pilot projects provide an operational implementation so that users and technology developers can collaborate and learn how to better address their requirements using standards-based architectures. To articulate the value of interoperability via standards, technology provider participants will implement the recommended Arctic SDI architecture in support of Arctic policy scenarios. A video will be produced to engage policymakers on the benefits of integrating diverse data utilizing Arctic SDI standards and information management best practices.

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The OGC is an international consortium of more than 515 companies, government agencies, research organizations, and universities participating in a consensus process to develop publicly available geospatial standards. OGC Standards support interoperable solutions that “geo-enable” the Web, wireless and location-based services, and mainstream IT. OGC Standards empower technology developers to make geospatial information and services accessible and useful with any application that needs to be geospatially enabled. Visit the OGC website at http://www.opengeospatial.org.

[Source: OGC press release]