OGC Requests

OGC requests public comment on draft charter for new Portrayal Domain Working Group

Status: 
Please note:  This Request is scheduled to close on 7th March 2019.
Open Date: 
Thu, 02/14/2019
Closing Date: 
Thu, 03/07/2019 (All day)
Description: 

 

The Open Geospatial Consortium (OGC) seeks public comment on the draft Charter for a proposed Portrayal Domain Working Group (DWG).

The Portrayal DWG is being established to address a gap in the OGC standards baseline with regards to the portrayal of geospatial data, including the standardization of portrayal rules, registry data, styles, and encoding formats. Portrayal concerns the way that information, in this case geospatial data, is presented to humans. Cartography, one form of map portrayal, is one of the oldest of human graphical portrayal skills.

Traditionally, conveying spatial information involved the use of maps. However, as the types and complexity of geospatial information has changed in-step with technological advances, so have the requirements for the portrayal of this information. For example, it is now common for geospatial data to be portrayed (visualized) in areas such as 3D, augmented reality, and gaming & simulation. Additionally, multi-dimensional portrayal is rapidly expanding as advances in information technology and computer graphics make more visualization alternatives available. 

Many of these technology advances are currently being considered across several OGC Domain and Standards Working Groups. However, they often consider only a portion of the portrayal challenge or address a portrayal solution tailored to a specific issue and not a broader approach within a unified framework. 

OGC will benefit from a coherent organization to ensure that common and consistent frameworks and approaches are applied to portrayal issues. 

The Portrayal Domain Working Group, therefore, will bring together a community to define a common portrayal framework, provide direction to portrayal Standards Working Groups, and provide guidance to other Domain Working Groups on portrayal concerns. 

OGC membership has registered a concern that without a portrayal framework with updated consensus standards and Best Practices, divergence will continue in the community and interoperability will be inhibited. External to OGC, multiple communities of interest such as the Defence Geospatial Information Working Group (DGIWG), the U.S. National System for Geospatial-Intelligence (NSG), the American, British, Canadian, Australian, and New Zealand (ABCANZ) Armies program, the meteorological and oceanographic community, and the International Hydrographic Organization (IHO) have advocated for increased portrayal capabilities supported by OGC standards. 

Comment: 

Comments can be submitted to a dedicated email reflector for a twenty-one day period ending on the "Close request date" listed above, Comments received will be consolidated and reviewed by OGC members for incorporation into the document. Please submit your comments using the following link: charter-requests [at] opengeospatial.org (Click here to submit comments) The link provided above should include a standard template in the message body. If the preloaded message body does not work properly using your mail client, please refer to the following template for the message body: Comments Template

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OGC Requests: 

OGC Seeks Public Comment on MetOcean profile and extensions to WCS 2.1

Status: 
Please note:  This Request is scheduled to close on 15th March 2019.
Open Date: 
Wed, 02/13/2019
Closing Date: 
Fri, 03/15/2019 (All day)
Description: 

 

The Open Geospatial Consortium (OGC) seeks public comment on the MetOcean profile and extensions to WCS 2.1. A public comment on these documents was also held in 2018, but the documents have been renamed and the schemas updated, so a second round of comment is sought.

The Meteorological and Oceanography (MetOcean) community works with massive datacubes of content organized in 4-dimensional space and time. Extracting valuable information from these datasets requires efficient query and delivery of the content perfectly suited to the user’s needs.

The MetOcean community relies upon the OGC Web Coverage Service (WCS) to search and deliver such content. The community has developed a new profile and two new extensions to WCS 2.1 to address MetOcean requirements. The MetOcean Profile fully exploits the multi-dimensional nature of WCS2.1, which is built on the new OGC Coverage Implementation Schema (CIS) 1.1. The GetCapabilities file size is reduced by almost 2 orders of magnitude, making discovery much easier.

As the WCS2.1 core provides only general metadata, the MetOcean Profile adds community-specific metadata to this core.

Additionally, the MetOcean Profile introduces the terms “Groups” and “CoverageCollections” as a way to both efficiently access the data, and structure the return of data. The main benefit of Groups is in creating a structure that reflects the organization of the intended use of data, rather than its underlying structure. This provides a hierarchical way of nesting services. The main benefit of CoverageCollections allows for the identification of collections of data for easier access to the data.

Two extensions have also been developed to facilitate retrieval of coverage data according to the operational requirements of those using MetOcean data. One extension specifies how to extract a corridor based on a trajectory from a multidimensional coverage. The other extension defines how to extract data contained within a polygon defined either by a set of points or the radius and position of a circle point.

Through the addition of community-based metadata, Groups & CoverageCollections, and the two new operations, the efficiency of both MetOcean data access and retrieval has been increased substantially.

Comment: 

Comments can be submitted to a dedicated email reflector for a thirty day period ending on the "Close request date" listed above, Comments received will be consolidated and reviewed by OGC members for incorporation into the document. Please submit your comments using the following link: requests [at] lists.opengeospatial.org (Click here to submit comments) The link provided above should include a standard template in the message body. If the preloaded message body does not work properly using your mail client, please refer to the following template for the message body: Comments Template

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OGC Requests: 

OGC Seeks Public Comment on GroundwaterML v2.3 Candidate Standard

Status: 
Please note:  This Request is scheduled to close on 13 February 2019.
Open Date: 
Mon, 01/14/2019
Closing Date: 
Wed, 02/13/2019 (All day)
Description: 

 

The Open Geospatial Consortium (OGC) seeks public comment on an updated version of the ‘OGC WaterML 2: Part 4 – GroundWaterML 2 (GWML2)’ candidate standard.

The GroundWaterML2 standard (GWML2) describes a conceptual and logical schema for the exchange of groundwater data, as well as a GML/XML encoding. Changes in GWML2 version 2.3 include:

  1. The addition of a compact encoding using the OGC Sensor Web Enablement standards for information recorded along the length of a water well;
  2. An encoding strategy to connect a water well with this information using the OGC Observations and Measurements standard, and;
  3. A logical schema change that increases the maximum number of entries from one to many for two well construction properties.

 

All changes are backward compatible with the previous GWML2 schemas.

A significant portion of the global water supply can be attributed to groundwater resources. Effective management of such resources requires the collection, management and delivery of related data, but these are impeded by issues related to data availability, distribution, fragmentation, and heterogeneity: collected data is not all readily available and accessible, available data is distributed across many agencies in different sectors and often thematically fragmented, and similar types of data are diversely structured by the various data providers. This situation holds both within and between political entities, such as countries or states, impairing groundwater management across all jurisdictions.

Groundwater data networks are an emerging solution to this problem as they couple data providers through a unified data delivery vehicle based on open standards for data access and data content. The relative maturity of OGC data access standards, such as the Web Feature Service (WFS) and Sensor Observation Service (SOS), combined with the rise of water data networks, have created a need for a common groundwater data standard: GroundWaterML2.

The primary goal of this standard is to capture the semantics, schema, and encoding syntax of key groundwater data, in order to enable information systems to interoperate with such data. The GroundwaterML2 standard (GWML2) forms Part 4 of the WaterML 2 suite of standards.

Comment: 

Comments can be submitted to a dedicated email reflector for a thirty day period ending on the "Close request date" listed above, Comments received will be consolidated and reviewed by OGC members for incorporation into the document. Please submit your comments using the following link: requests [at] lists.opengeospatial.org (Click here to submit comments) The link provided above should include a standard template in the message body. If the preloaded message body does not work properly using your mail client, please refer to the following template for the message body: Comments Template

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OGC Requests: 

OGC seeks public comment on PipelineML candidate standard, to support the interchange of data pertaining to oil and gas pipeline systems

Status: 
Please note:  This Request is scheduled to close on 7 January 2019. 
This page previously linked to an outdated version of the candidate standard, so commenters are urged to re-download the correct version linked below.
Open Date: 
Thu, 12/06/2018
Closing Date: 
Mon, 01/07/2019 (All day)
Description: 

 

The Open Geospatial Consortium (OGC) is seeking public comment on the candidate PipelineML Conceptual and Encoding Model Standard (PipelineML).

PipelineML presents the concepts supporting the interchange of data pertaining to oil and gas pipeline systems, allowing pipeline operators to rapidly send and receive asset information to/from service providers in a manner that effectively promotes traceable, verifiable, and complete data management practices. This initial release of PipelineML addresses two critical business use cases that are specific to the pipeline industry: new construction surveys, and pipeline rehabilitation.

This candidate standard defines the individual pipeline components with support for lightweight aggregation. Additional aggregation requirements such as right-of-way and land management will, in the future, use the OGC LandInfra standards with utility extensions. Future extensions to PipelineML Core are planned to include, among others, cathodic protection, and facility & safety.

PipelineML was advanced by an international team of contributors from the US, Canada, Belgium, Norway, Netherlands, UK, Germany, Australia, Brazil, and Korea. The standard is a deliverable of the OGC PipelineML Standards Working Group (SWG).

Downloads: 
[previously, an outdated version was linked here. Please re-download the document to view the correct version]
 
Comment: 

Comments can be submitted to a dedicated email reflector for a thirty day period ending on the "Close request date" listed above, Comments received will be consolidated and reviewed by OGC members for incorporation into the document. Please submit your comments using the following link: requests [at] lists.opengeospatial.org (Click here to submit comments) The link provided above should include a standard template in the message body. If the preloaded message body does not work properly using your mail client, please refer to the following template for the message body: Comments Template

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OGC Requests: 

OGC seeks public comment on adoption of two jointly developed OGC/W3C standards

Status: 
Please note:  This Request is scheduled to close on 27 December 2018.
Open Date: 
Tue, 11/27/2018
Closing Date: 
Thu, 12/27/2018 (All day)
Description: 

 

The Open Geospatial Consortium (OGC) seeks comments on the possible adoption of the jointly developed OGC/W3C Time Ontology in OWL (OWL-Time) and Semantic Sensor Network (SSN) Ontology candidate standards. Both are published as W3C Recommendations and were prepared by the Spatial Data on the Web Working Group (SDWWG) - a previous joint W3C/OGC project now succeeded by the Spatial Data on the Web Interest Group. OGC is now seeking comment as to whether these documents should also be approved as OGC standards.

OWL-Time is an OWL-2 DL ontology of temporal concepts for describing the temporal properties of resources in the world or described in Web pages. The ontology provides a vocabulary for expressing and sharing facts about topological (ordering) relations among instants and intervals, together with information about durations, and about temporal position including date-time information. Time positions and durations may be expressed using either the conventional (Gregorian) calendar and clock or using another temporal reference system such as Unix-time, geologic time, or different calendars.

The Semantic Sensor Network (SSN) ontology is used for describing actuators, sensors and their observations, the involved procedures, the studied features of interest, the samples used to do so, and the observed properties. SSN follows a horizontal and vertical modularization architecture by including a lightweight but self-contained core ontology called SOSA (Sensor, Observation, Sample, and Actuator) for its elementary classes and properties. With their different scope and different degrees of axiomatization, SSN and SOSA are able to support a wide range of applications and use cases, including satellite imagery, large-scale scientific monitoring, industrial and household infrastructures, social sensing, citizen science, observation-driven ontology engineering, and the Web of Things.

OGC is seeking public input on if it should adopt these documents as OGC Standards.

Downloads: 

The Time Ontology in OWL and Semantic Sensor Network Ontology W3C Recommendations are available for download from W3C: Time Ontology in OWL (OWL-Time) and Semantic Sensor Network (SSN) Ontology.

Comment: 

Comments can be submitted to a dedicated email reflector for a thirty day period ending on the "Close request date" listed above, Comments received will be consolidated and reviewed by OGC members for incorporation into the document. Please submit your comments using the following link: requests [at] lists.opengeospatial.org (Click here to submit comments) The link provided above should include a standard template in the message body. If the preloaded message body does not work properly using your mail client, please refer to the following template for the message body: Comments Template

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OGC Requests: 

OGC seeks public comment on Hierarchical Data Format Version 5 (HDF5) Core Standard

Status: 
Please note:  This Request is scheduled to close on 13 December 2018.
Open Date: 
Wed, 11/14/2018
Closing Date: 
Thu, 12/13/2018 (All day)
Description: 

 

The Open Geospatial Consortium (OGC) seeks public comment on the candidate Hierarchical Data Format Version 5 (HDF5) Core Standard.

Hierarchical Data Format Version 5 (HDF5) is a data model, a programming interface, and a storage model for keeping and managing data. HDF5 supports an unlimited variety of data types, and is designed to be flexible and efficient for large and complex data. Due to its use of customizable data types, HDF5 is extensible, allowing communities and their applications to evolve the use and functionality of HDF5.

HDF5 provides an encoding standard particularly suitable to scientific and engineering geospatial applications that employ complex multidimensional datasets to describe phenomena that change over time and/or space.

HDF5 is designed to be simple yet versatile. HDF5 is capable of supporting complex data relationships and dependencies through its grouping and linking mechanisms. Additionally, HDF5 is self-describing through its accommodation of user-defined metadata.

The candidate OGC HDF5 Core standard defines the HDF5 data model to allow implementers to develop HDF5 content and tools using the HDF5 or other storage models and programming interfaces.

HDF5 is already in use by the OGC community: OGC’s NetCDF Enhanced Data Model (OGC 11-038r2) can be fully described by the HDF5 data model because its storage format is also HDF5. However, the HDF5 data model includes several entities whose features go significantly beyond those of the NetCDF Enhanced model.

Furthermore, OGC members are using HDF5 as a standard format for more complex data types. In particular, HDF5 has been proposed as at least two standards for point cloud data in the OGC Point Cloud Domain Working Group, and has been demonstrated as a GDAL compliant format for images (KEA). HDF5 is also used as an open standard for other geographic data, such as the Bathymetric Attributed Grid (BAG) format, which is the basis for the International Hydrographic Organization’s standards.

The HDF5 data format and library was created, and is maintained, by the HDF Group. The group’s mission is to ensure long-term access to data stored in HDF5 and support its dedicated and diverse user community. The organization actively partners with users to understand their needs and challenges and to help them use HDF5 effectively. As a long-time OGC member, The HDF Group actively contributes to numerous standards activities. The HDF Group chairs the OGC HDF Standards Working Group, where the conceptual model was developed.

Comment: 

Comments can be submitted to a dedicated email reflector for a thirty day period ending on the "Close request date" listed above, Comments received will be consolidated and reviewed by OGC members for incorporation into the document. Please submit your comments using the following link: requests [at] lists.opengeospatial.org (Click here to submit comments) The link provided above should include a standard template in the message body. If the preloaded message body does not work properly using your mail client, please refer to the following template for the message body: Comments Template

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OGC Requests: 

OGC seeks public comment on Symbology Conceptual Core Model

Status: 
Please note:  This Request is scheduled to close on 21st November 2018.
Open Date: 
Mon, 10/22/2018
Closing Date: 
Wed, 11/21/2018 (All day)
Description: 

 

The Open Geospatial Consortium (OGC) seeks public comment on the early development of a Symbology Conceptual Core Model (SCCM).

The Symbology Conceptual Core Model (SCCM) is an abstract, modular, and extensible model, with no encoding dependency, used for the portrayal of geographical data. The SCCM aims to offer a consistent approach to specifying data portrayal and symbology rules that can be applied to geospatial datasets as well as online geospatial data and mapping services. Existing OGC standards for styling and symbology can only be used with a few OGC standards (e.g. Web Map Service), so a more general and portable symbology model is required for use across the broad OGC standards baseline.

The SCCM aims to:

  • provide the flexibility required to achieve adequate cartographic styling for a variety of information communities; e.g. aviation symbols, weather symbols, thematic maps, etc, and;
  • achieve a high level styling interoperability without encoding dependencies (one symbology model, many encodings).

 

Potential implementations of the SCCM are expected to enhance OGC standards such as the Web Map Service, Web Feature Service, GeoPackage, and others. By sharing a common core, and using an extension mechanism, integration of these standards for the purposes of cartographic representation could be greatly simplified.

Downloads: 
    

        OGC Symbology Conceptual Model: Core part (18-067) (PDF)
        
    
Comment: 

Comments can be submitted to a dedicated email reflector for a thirty day period ending on the "Close request date" listed above, Comments received will be consolidated and reviewed by OGC members for incorporation into the document. Please submit your comments using the following link: requests [at] lists.opengeospatial.org (Click here to submit comments) The link provided above should include a standard template in the message body. If the preloaded message body does not work properly using your mail client, please refer to the following template for the message body: Comments Template

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OGC Requests: 

OGC requests comment on candidate standard: Geographic Information — Well Known Text Representation Of Coordinate Reference Systems

Status: 
Please note:  This Request is scheduled to close on 5 November 2018.
Open Date: 
Thu, 10/04/2018
Closing Date: 
Mon, 11/05/2018 (All day)
Description: 

 

The Open Geospatial Consortium (OGC) seeks public comment on the candidate standard jointly developed by the International Organization for Standardization (ISO) and the Open Geospatial Consortium: “Geographic Information - Well-Known Text representation of coordinate reference systems” (CRS WKT).

Well-Known Text (WKT) is used as a compact machine- and human-readable representation of geometric objects and coordinate reference information, as specified two decades ago in the OGC and ISO standard “Geographic information – Simple feature access – Part 1: Common architecture.” This standard included a capability for describing coordinate reference systems as text. The original CRS WKT was subsequently extended in numerous incompatible ways, and had thus become non-interoperable.

In 2015, OGC and ISO adopted a major revision of the CRS WKT specification that allowed a rigorous description of coordinate reference systems and coordinate operations in WKT, following the data model described in OGC Abstract Specification, Topic 2, which is also published as ISO 19111:2007 - Spatial referencing by coordinates. However, OGC AS Topic 2 and ISO 19111:2007 have recently been revised. The revision of CRS WKT tracks the changes made to the CRS data model.

The new edition of the CRS WKT standard aligns with the coordinate reference system model described in ISO 19111:2018. Specifically the changes from the 2015 edition are:

  • Extension to describe dynamic geodetic and dynamic vertical coordinate reference systems - coordinate reference systems in which coordinate values on the surface of the earth change with time due to tectonic deformation including a time reference (coordinate epoch) for coordinates referenced to a dynamic CRS;
  • Extension to describe geoid-based vertical coordinate reference systems;
  • Extension for the description of datum ensembles, groups of realizations of one terrestrial or vertical reference system that for low accuracy purposes may be merged ignoring coordinate transformation;
  • A rigorous description of temporal coordinate reference systems;
  • The removal (deprecation) of image coordinate reference systems; and
  • The remodelling of scope and extent information.

 

This latest edition of CRS WKT cancels and replaces the 2015 version (also published as ISO 19162:2015), which has been technically revised. The candidate CRS WKT standard was prepared by the OGC CRS Standards Working Group and Technical Committee ISO/TC 211 Geographic information/Geomatics.

Comment: 

Comments can be submitted to a dedicated email reflector for a thirty day period ending on the "Close request date" listed above, Comments received will be consolidated and reviewed by OGC members for incorporation into the document. Please submit your comments using the following link: requests [at] lists.opengeospatial.org (Click here to submit comments) The link provided above should include a standard template in the message body. If the preloaded message body does not work properly using your mail client, please refer to the following template for the message body: Comments Template

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OGC Requests: 

OGC seeks public comment on draft charter for Artificial Intelligence in Geoinformatics Domain Working Group

Status: 
Please note:  This Request is scheduled to close on 25th September 2018.
Open Date: 
Tue, 09/04/2018
Closing Date: 
Tue, 09/25/2018 (All day)
Description: 

 

The Open Geospatial Consortium (OGC) seeks public comment on the draft Geospatial Artificial Intelligence (GeoAI) Domain Working Group (DWG) Charter.

Artificial Intelligence (AI) and Deep Learning (DL) technologies have started to be coupled with geoinformatics and are bringing geospatial intelligence to various domains, including autonomous transportation, predictable healthcare, sustainable urban planning/design/development, among others.

For example, AI-assisted volunteered geographic information (such as OpenStreetMap data) accelerates the development of Spatial Data Infrastructures (SDI) from satellite imagery. Also, deep learning techniques provide micro-level prediction of human mobility and environmental exposure across different geographic areas in epidemiology. Further, autonomous vehicles gather, manage, and analyze massive amounts of geospatial data from a combination of GPS, cameras, and other traffic sensors and navigate with high-level human-like perception by using Deep Learning. Clearly, many fields can benefit from combining Artificial Intelligence with geospatial data.

The GeoAI DWG has been chartered to identify use cases and applications related to AI in geospatial domains such as healthcare, smart home, and autonomous cars. The GeoAI DWG will provide an open forum for broad discussion and presentation of use cases with the purpose of bringing geoscientists, computer scientists, engineers, entrepreneurs, and decision makers from academia, industry, and government together to develop, share, and research the latest trends, successes, challenges, and opportunities in the field of AI with geospatial data. The GeoAI DWG will aim to investigate the feasibility and interoperability of OGC standards to use and re-use geospatial data in AI applications, as well as describe gaps and issues that could lead to new geospatial standardization within the GeoAI domain community.

 
Comment: 

Comments can be submitted to a dedicated email reflector for a 21 day period ending on the "Close request date" listed above, Comments received will be consolidated and reviewed by OGC members for incorporation into the document. Please submit your comments using the following link: charter-requests [at] opengeospatial.org (Click here to submit comments) The link provided above should include a standard template in the message body. If the preloaded message body does not work properly using your mail client, please refer to the following template for the message body: Comments Template

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Subscribing to the the list will also allow you to view comments already received, which can be found in the List Archives.

OGC Requests: 

OGC Seeks Public Comment on MetOcean profile and extensions to WCS 2.1

Status: 
Please note:  This Request is scheduled to close on 20 September 2018.
Open Date: 
Tue, 08/21/2018
Closing Date: 
Thu, 09/20/2018 (All day)
Description: 

 

The Open Geospatial Consortium (OGC) seeks public comment on the MetOcean profile and extensions to WCS 2.1.

The Meteorological and Oceanography (MetOcean) community works with massive datacubes of content organized in 4-dimensional space and time. Extracting valuable information from these datasets requires efficient query and delivery of the content perfectly suited to the user’s needs.

 

The MetOcean community relies upon the OGC Web Coverage Service (WCS) to search and deliver such content. The community has developed a new profile and two new extensions to WCS 2.1 to address MetOcean requirements. The MetOcean Profile fully exploits the multi-dimensional nature of WCS2.1, which is built on the new OGC Coverage Implementation Schema (CIS) 1.1. The GetCapabilities file size is reduced by almost 2 orders of magnitude, making discovery much easier.

 

As the WCS2.1 core provides only general metadata, the MetOcean Profile adds community-specific metadata to this core.

 

Additionally, the MetOcean Profile introduces the terms “Groups” and “CoverageCollections” as a way to both efficiently access the data, and structure the return of data. The main benefit of Groups is in creating a structure that reflects the organization of the intended use of data, rather than its underlying structure. This provides a hierarchical way of nesting services. The main benefit of CoverageCollections allows for the identification of collections of data for easier access to the data.

 

Two extensions have also been developed to facilitate retrieval of coverage data according to the operational requirements of those using MetOcean data. One extension specifies how to extract a corridor based on a trajectory from a multidimensional coverage. The other extension defines how to extract data contained within a polygon defined either by a set of points or the radius and position of a circle point.

 

Through the addition of community-based metadata, Groups & CoverageCollections, and the two new operations, the efficiency of both MetOcean data access and retrieval has been increased substantially.

Comment: 

Comments can be submitted to a dedicated email reflector for a thirty day period ending on the "Close request date" listed above, Comments received will be consolidated and reviewed by OGC members for incorporation into the document. Please submit your comments using the following link: requests [at] lists.opengeospatial.org (Click here to submit comments) The link provided above should include a standard template in the message body. If the preloaded message body does not work properly using your mail client, please refer to the following template for the message body: Comments Template

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Subscribing to the the list will also allow you to view comments already received, which can be found in the List Archives.

OGC Requests: 

Pages