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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OGC Requests: 

OGC seeks public comment on proposed Statistical Domain Working Group

Status: 
Please note:  This Request is scheduled to close on 26 July 2018.
Open Date: 
Thu, 07/05/2018
Closing Date: 
Thu, 07/26/2018 (All day)
Description: 

 

The Open Geospatial Consortium (OGC) seeks comments on the draft charter of a proposed Statistical Domain Working Group (DWG).

The Statistical DWG is proposed to identify requirements and use cases of how geospatial and statistical standards can support the integration of geospatial information into statistical systems for the purposes of broad discovery, analysis, and use.

The statistical domain is evolving to move from the traditional capture of data through surveys such as census, to a more dynamic integration of data from across a wide range of domains that can make statistics more timely, more accurate, and better understood.

Geospatial information is a key data source in transforming the way that statistics are produced as it has the potential to fit into every component of the Generic Statistical Business Process Model.

The complexity of bringing together survey, administrative, and big data with geospatial information and earth observation is driving an increased need for standardisation to support better statistical outputs. A few of the specific challenges under consideration within the proposed DWG include:

  • Data integration – how can semantic web technology be used to improve the integration of geospatial and statistical datasets?
  • Data Capture – how can geospatial data be used to include the capture and georeferencing of survey, administrative and big datasets used in the production of statistics?
  • Data processing – as geospatial objects do not fit within traditional database structures these are currently handled externally to the rest of the statistical process through dedicated geospatial systems.
  • Data exchange – given the lack of interoperability between statistical and geospatial data architectures, frameworks, metadata and standards, how can data be shared through a service orientated approach?
  • Data analysis – a lack of comparability between geographic datasets at a national, regional, continental and global level makes international analysis difficult.
  • Knowledge – there is a lack of understanding within the statistical community of the geospatial tools and standards that can support the statistical system, and a corresponding situation with the geospatial community.

 

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 new version of OpenSearch for Earth Observation Suite of Standards

Status: 
Please note:  This Request is scheduled to close on 3rd August 2018.
Open Date: 
Wed, 07/04/2018
Closing Date: 
Fri, 08/03/2018 (All day)
Description: 

 

The Open Geospatial Consortium (OGC) seeks public comment on the latest version of the OpenSearch for Earth Observation (OpenSearch-EO) Suite of Standards.

The OpenSearch specification allows syndication of search results that can then be aggregated by one large index. It provides a simple to use description of the search interface, which is called OpenSearch Description document (OSDD). A client (e.g., a browser) can use this description to check which response formats are supported and how a query/filter can be formulated.

This OGC suite of standards specifies an Earth Observation extension to OpenSearch (OpenSearch-EO) that defines query parameters to permit the filtering of search results with fields related to Earth Observation, as well as a search response model supporting different search response encodings. This revision updates the extension primarily to include additional examples for developers. Further, two new encodings of the OpenSearch-EO conceptual model have been developed as new standards: one for encoding metadata using GeoJSON or JSON-LD and one for encoding of responses to OpenSearch-EO queries in GeoJSON or JSON-LD. These standards further integrate with the OGC Standards Baseline in that the GeoJSON responses are provided as OWS Context documents.

OpenSearch-EO specifies a series of parameters that can be used to constrain search results. In short, provision is made to filter results by sensor information, acquisition, processing parameters and other information.

This specification is complementary to the OpenSearch Geo and Time Extensions (OGC 10-032 [RD.3]) and recommends its use for spatial and temporal queries especially for EO collection and EO product metadata. Further, it defines a default response encoding based on Atom 1.0/XML [RD.22].

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 3D Tiles Candidate Community Standard

Status: 
Please note:  This Request is scheduled to close on 1 August 2018.
Open Date: 
Mon, 07/02/2018
Closing Date: 
Wed, 08/01/2018 (All day)
Description: 

 

The Open Geospatial Consortium (OGC) seeks public comment on the 3D Tiles Specification 1.0 candidate Community standard.

3D Tiles is a publicly available open specification for streaming massive heterogeneous 3D geospatial datasets for visualization. To expand beyond existing 2D and 2.5D streaming of map tiles and terrain, 3D Tiles support 3D models such as point clouds, 3D buildings (exterior and interior), trees, imagery, BIM/CAD models, and terrain. 3D Tiles is currently implemented in more than a dozen software products.

Bringing techniques from graphics research, the movie industry, and the game industry to 3D geospatial, 3D Tiles defines a spatial data structure and a set of tile formats designed for 3D, and optimized for streaming and rendering. The tile formats are:

  • Batched 3D Models – for 3D buildings, terrain, BIM/CAD models, etc.
  • Instanced 3D Models – for trees, bolts, valves, etc.
  • Point Clouds – for massive point clouds, including per-point attributes.
  • Composite – a tile of tiles to allow aggregation.

 

A Community standard is an official standard of the OGC that is developed and maintained external to the OGC. The originator of the standard brings to OGC a “snapshot” of their work that is then endorsed by OGC membership as a stable, widely implemented standard that becomes part of the OGC Standards Baseline. In 2016, OGC approved a work item on endorsing 3D Tiles as an OGC Community Standard, and now this effort is ready for consideration for approval by OGC members.

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 Part 1 of the Features and Geometries Candidate Standard

Status: 
Please note:  This Request is scheduled to close on 27 July 2018.
Open Date: 
Wed, 06/27/2018
Closing Date: 
Fri, 07/27/2018 (All day)
Description: 

 

The Open Geospatial Consortium (OGC) seeks public comment on Part 1 of the Features and Geometry candidate standard.

The Features and Geometries candidate standard provides the requirements for defining and representing geographic features in geographic information systems, applications, databases, and data formats. This standard is being developed in multiple parts in conjunction with ISO / TC 211 and will impact or replace ISO 19107, ISO 19109, and ISO 19125. The major advantage to the approach taken with the multi-part Feature and Geometries standard is that the parts are each relatively small and focused in content and ease the burden of implementation of the standard.

The Implementation Standard Geographic information — Features and geometry – Part 1: Feature models describes how geographic information held in datasets and databases using a ‘feature model’ are structured, created, stored, queried, and manipulated.

Part 1: Feature models updates the General Feature Model with various representations, as well as how it determines the basic form of geographic information. This is derived from and extends ISO 19109, which, in its current form, only addresses schema-based data storage defined in UML, but leaves possibilities open for other non-schematic design systems.

The data structures described in the candidate standard have been made more flexible than in earlier versions of this and supporting standards. The Features and Geometry standard describes semantically-structured data sets aimed to represent reality, not the specific needs of a single application. This shifts the support of interoperability from creating transfer formats, to creating inclusive, flexible - and thereby interoperable - data stores that are usable by a wide range of applications.

Further parts will describe the distinction between planar and geodetic/ellipsoidal geometry, simple geometries, other geometry, and topology structures, while a set of parallel standards will define WKT (well-known text) and JSON (JavaScript Object Notation) for both features and geometry.

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 Tile Matrix Set Candidate Standard

Status: 
Please note:  This Request is scheduled to close on 26 July 2018.
Open Date: 
Tue, 06/26/2018
Closing Date: 
Thu, 07/26/2018 (All day)
Description: 

 

The Open Geospatial Consortium (OGC) seeks public comment on the Tile Matrix Set candidate standard.

A Tile Matrix Set defines a tile indexing pyramidal system to allow easy retrieval of the appropriate tiles by a mapping service. In a tile matrix set, a tile can be uniquely identified by a tile column, a tile row, and a tile matrix identifier. A Tile Matrix Set is useful across many applications for sharing geospatial information.

In 2007, OGC approved and released the Web Map Tile Service (WMTS) standard. WMTS 1.0 provides a definition of a Tile Matrix Set. Over time, other OGC standards dealing with tiles in other ways needed to use the same definition. Unfortunately, these OGC standards could not use the definition independently because the definition was formally linked to the tile service and was limited to an XML encoding.

The Tile Matrix Set candidate standard decouples the concept of a tile matrix set from the WMTS standards so that any standard or application that requires the use of a tile matrix set can reference the concept directly. This candidate standard also adds an informative list of commonly used tile matrix sets with XML and JSON schemas and examples. A future Tile Matrix Set standard is anticipated to impact future revisions of other OGC standards such as GeoPackage and the next version of WMTS.

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 new Earth Observation Exploitation Platform Domain Working Group

Status: 
Please note:  This Request is scheduled to close on 30 May 2018.
Open Date: 
Wed, 05/09/2018
Closing Date: 
Wed, 05/30/2018 (All day)
Description: 

 

The Open Geospatial Consortium (OGC) seeks comments on the draft charter of a proposed Earth Observation Exploitation Platform Domain Working Group (DWG).

Earth Observation (EO) data captured by satellites has always been ‘big’ but an ever-increasing number of satellites capturing data at higher spatial and spectral resolutions has meant that client access to EO data has required larger and larger downloads, and even in-house IT infrastructure just to manage the volume of data. Thus, the incentive to create cloud-based, web-accessible platforms in which to access and analyse EO data on-the-fly has also grown in recent years.

This incentive has meant that cloud-based EO ‘Exploitation Platforms’ have been independently developed by many public organizations and commercial companies. However, their independent development has also hampered interoperability between these platforms. The next step in this data exploitation revolution, then, is to link the platforms together to create an ecosystem in which each platform can contribute its offered services to the implementation of more complex use cases.

For example, a scientist assessing climate changes may need data across several providers - from vegetation indexes, to predictive rainfall models and more - in order to answer a research question. Standardized elements of EO Exploitation Platforms could provide a single interface for this climate scientist where each ‘cloud’ talks to each other in the background, sharing the data, applications, tools and services between the platforms to generate a final ‘picture’ for the scientist.

Indeed, the ESA EO Exploitation Platforms built to date all share a common set of functionalities ripe for standardization:

  • Data provisioning;
  • Information visualization and analysis;
  • Data processing; and
  • User Authentication, Authorization, and Accounting.

 

This Domain Working Group will bring together service and technology providers of Earth Observation Data Exploitation Platforms in order to define a standards-based framework for the platforms’ interfaces that addresses and unifies the platforms through this common set of functionalities.

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: 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

OGC Requests: 

OGC seeks public comment on new Interoperable Simulation and Gaming Domain Working Group

Status: 
Please note:  This Request is scheduled to close on 28 May 2018.
Open Date: 
Mon, 05/07/2018
Closing Date: 
Mon, 05/28/2018 (All day)
Description: 

 

The Open Geospatial Consortium (OGC) seeks comments on the draft charter of a proposed Interoperable Simulation and Gaming Domain Working Group (DWG).

Gaming systems and technologies, while originally developed for entertainment, are increasingly being used as an interoperable mechanism for simulation of real world activities. Such gaming systems traditionally relied upon fictitious or highly-simplified representations of the world. However, recent years have seen widespread use of realistic depictions of environments and capabilities that can represent large areas of the Earth.

Considerable innovation and enhancements in virtual environment fidelity, as well as reductions in system costs, are expected to result from increased use of cloud, mobile, and immersive technologies. However, most computer-based gaming systems have technical architectures that are different from traditional simulation systems. This DWG will assess how gaming systems might be leveraged for geospatial use cases, including how existing individual vehicle and system operations may be significantly enhanced by interoperation with game-based simulations.

Additionally, the DWG will examine how geospatial data can fit into standard formats and conceptual models compatible with the fast and deterministic storing, retrieval, and rendering of high-quality 3D virtual environments that is required by simulations.

This DWG will provide a forum for the discussion of requirements and use cases for standards and the registration of implementations related to use and re-use of geospatial data within the Interoperable Simulation and Gaming (ISG) community, as well as broader discussion of ISG topics and research activities.

Further, the DWG will aim to increase awareness of the advantages of ISG in general, to define the qualities of ISG systems, to enhance their interoperability, and to support activities to standardize operations within and among them related to the use and re-use of geospatial data

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: 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

OGC Requests: 

OGC Seeks Public Comment on update to Abstract Specification Topic 2: Referencing By Coordinates

Status: 
Please note:  This Request is scheduled to close on 21 May 2018.
Open Date: 
Thu, 04/19/2018
Closing Date: 
Mon, 05/21/2018 (All day)
Description: 

 

Third edition of this Abstract Specification describes the requirements for creating coordinate systems referencing locations in space and time.

The Open Geospatial Consortium (OGC) seeks public comment on the third edition of the Abstract Specification Topic 2: Referencing By Coordinates.

Aligned with the draft third edition (2018) of ISO 19111, Geographic Information - Referencing by coordinates, the Abstract Specification describes the data elements, relationships, and associated metadata required for spatial referencing by coordinates, expanded from a strictly spatial context to include time. The document was prepared by the OGC Coordinate Reference Systems Standards Working Group in close collaboration with ISO Technical Committee ISO/TC 211, Geographic information/Geomatics.

In addition to describing a coordinate reference system, the Abstract Specification provides for the description of a coordinate operation between two different coordinate reference systems, or a coordinate operation to account for crustal motion over time. With such information, spatial data referenced to different coordinate reference systems can be referenced to one specified coordinate reference system at one specified time. This facilitates spatial data integration. Alternatively, an audit trail of coordinate manipulations can be maintained.

This third edition cancels and replaces the second edition (OGC Topic 2 of 2008), which has been technically revised. This document also incorporates the provisions of OGC Topic 2.1 of 2010, which is to be cancelled.

The changes in this edition compared to the previous edition are:

  • inclusion of applicable modern geodetic terminology;
  • extension to describe dynamic geodetic reference frames;
  • extension to describe geoid-based vertical coordinate reference systems;
  • extension to allow triaxial ellipsoid for planetary applications;
  • extension to describe three-dimensional projected coordinate reference systems;
  • addition of 'datum ensembles' to allow grouping of related realizations of a reference frame where for lower accuracy applications the differences are insignificant;
  • clarification in the modelling of derived coordinate reference systems;
  • remodelling of the metadata elements scope and extent;
  • addition of requirements to describe coordinate metadata and the relationship between spatial coordinates.
  • additional modelling of temporal coordinate reference system components sufficient for spatio-temporal coordinate referencing;
  • consolidation of the provisions of OGC Abstract Specification Topic 2.1 (Spatial referencing by coordinates - Extension for parametric values) into this document;
  • change in name from 'Spatial referencing by coordinates' to 'Referencing by coordinates', due to the inclusion of the non-spatial coordinate reference system subtypes of parametric (from Abstract Specification topic 2.1) and temporal.
  • the correction of minor errors.

The various OGC Abstract Specifications provide the conceptual foundation for most OGC standards development activities. Open interfaces and protocols are built and referenced against Abstract Specifications, thus enabling interoperability between different brands and different kinds of spatial processing systems. The Abstract Specification provides a reference model for the development of OGC Implementation 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 version 1.1 of CDB standard

Status: 
Please note:  This Request is scheduled to close on 30 April 2018.
Open Date: 
Thu, 03/29/2018
Closing Date: 
Mon, 04/30/2018 (All day)
Description: 

OGC seeks public comment on version 1.1 of CDB standard

Minor update to CDB standard brings guidance on metadata, vector network priority, and more.

The Open Geospatial Consortium (OGC) seeks comments on the candidate CDB version 1.1 standard. CDB version 1.1 is a minor revision and is fully backwards compatible with Version 1.0.

The CDB standard defines a conceptual model, as well as rules for implementing the model, for the storage, access, and modification of a synthetic environment data store as required in high-fidelity simulation and mission rehearsal, such as for battlefield simulation. The standard addresses the challenge of full plug-and-play interoperability and reuse of geospatial data in a modeling and simulation environment. CDB data stores can also be exposed by OGC web services, such as a Web Map Service (WMS) or Web Feature Service (WFS) to permit visualization of the content outside of the traditional simulator hardware environment.

The main revisions for this version of the CDB standard are:

  • Detailed guidance on how to implement geospatial metadata in a CDB data store. This guidance is independent from the metadata standard that an organization wishes to use;
  • Incorporation of additional guidance requested by the CDB user community on such topics as vector network priority and significant size;
  • Updates to the CDB schema to add additional lights and feature types as well as spelling corrections and changes to support geospatial metadata;
  • Numerous minor changes to correct ambiguous wording, incorrectly formatted tables, spelling errors and so forth.

​​​​​​​

A detailed description of the changes to the CDB standard can be found in the CDB 1.1 release notes.

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: 

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