ISO 19123-2:2018 PDF

Name: ISO 19123-2:2018 — Geographic information — Schema for coverage geometry and functions — Part 2: Coverage implementation schema
SKU: ISO 19123-2:2018
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Geographic information — Schema for coverage geometry and functions — Part 2: Coverage implementation schema

Название (английский):

ISO 19123-2:2018

Geographic information — Schema for coverage geometry and functions — Part 2: Coverage implementation schema

Статус документа:: Действующий
Формат:: Электронный (PDF)
Количество страниц:: 31
Дата публикации:: 25 сентября 2018 г.
Издание:: ISO IS 19123 edition 1 version 1
ICS:: 35.240.70

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Описание (английский):

This document specifies a concrete[1] implementable, conformance-testable coverage structure based on the abstract schema for coverages defined in the ISO 19123 schema for coverage geometry. This document defines a structure that is suitable for encoding in many encoding formats. [1] "concrete" is used here as a contrast to "abstract" in the sense described in the Introduction.

Abstract

Похожие стандарты

Стандарты, упомянутые в описании

Overview

ISO 19123-2:2018 - Geographic information: Coverage Implementation Schema (CIS) - defines a concrete, implementable and conformance-testable structure for digital coverages based on the abstract coverage model in ISO 19123. The standard specifies an interoperable coverage information schema suitable for encoding in multiple formats (for example GML, JSON, GeoTIFF, NetCDF, GMLJP2) and for use with coverage-oriented services such as the Web Coverage Service (WCS). CIS enables consistent representation down to individual “pixels” or “voxels” and supports partitioning and multipart encodings.

Key topics and technical requirements

Coverage model: A concrete instantiation of the abstract ISO 19123 coverage concept (a feature that maps positions in a spatial/temporal domain to values).

CoverageFunction: Defines how coverage values are computed or retrieved for direct positions.

RangeType and RangeSet coherence: Rules for representing the set of values (bands, channels, measurements) and ensuring internal consistency.

Specific coverage types: Implementations for many coverage subtypes including Discrete Coverage, MultiPointCoverage, MultiCurveCoverage, MultiSurfaceCoverage, MultiSolidCoverage, GridCoverage, RectifiedGridCoverage and ReferenceableGridCoverage.

Encoding and representation rules:

GML representation requirements and a GML application schema for coverages (GMLCOV).
Multipart representation: mechanisms for combining a GML coverage description with externally encoded range sets (e.g., large binary payloads).
Special-format requirements: guidance for formats with particular needs (e.g., GeoTIFF, NetCDF).

Conformance and testing:

Defined conformance classes (including abstract class A.1: gml-coverage and concrete classes A.2–A.4) and an abstract test suite for conformance testing.

Metadata: Structured metadata elements to describe domain, range, CRS, and other coverage properties.

Practical applications and users

ISO 19123-2 is used where interoperable, precise representation of spatial/temporal data is required:

GIS and remote sensing data providers encoding imagery, rasters, multi-dimensional arrays, or voxel models.

Developers of geospatial data formats and encoders (GMLCOV, GeoTIFF, NetCDF).

Implementers of web services that deliver coverages (WCS, WCPS) and client software expecting standards-compliant coverages.

Data integrators, quality assurance teams and test labs using the conformance test suite to validate coverage interoperability.

Standardization bodies and domain experts harmonizing multi-domain geospatial data exchange.

Related standards

ISO 19123:2005 / ISO 19123-1 - abstract schema for coverage geometry and functions

ISO 19136 (GML) - Geography Markup Language

ISO 19103 - Conceptual schema language

OGC Coverage Implementation Schema (OGC 09-146r2) - functionally equivalent source used to derive CIS

Keywords: ISO 19123-2, Coverage Implementation Schema, CIS, coverage, GMLCOV, GridCoverage, RangeSet, GeoTIFF, NetCDF, conformance testing.

ISO 19123-2:2018 PDF

Abstract

Похожие стандарты

Overview

Key topics and technical requirements

Practical applications and users

Related standards

Технические детали

ISO 19123:2005

Geographic information — Schema for coverage geometry and functions

SIST EN ISO 19123-1:2023

Geographic information - Schema for coverage geometry and functions - Part 1: Fundamentals (ISO 19123-1:2023)

BS EN ISO 19123:2007

Geographic information. Schema for coverage geometry and functions

SIST EN ISO 19136-1:2020

Geographic information - Geography Markup Language (GML) - Part 1: Fundamentals (ISO 19136-1:2020)

SIST EN ISO 19103:2024

Geographic information - Conceptual schema language (ISO 19103:2024)