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GB/T 17941-2008 English PDF

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GB/T 17941-2008: Quality requirement for digital surveying and mapping achievements
Status: Valid

GB/T 17941: Evolution and historical versions

Standard IDContents [version]USDSTEP2[PDF] delivered inStandard Title (Description)StatusPDF
GB/T 17941-2008English299 Add to Cart 3 days [Need to translate] Quality requirement for digital surveying and mapping achievements Valid GB/T 17941-2008
GB/T 17941.1-2000English359 Add to Cart 3 days [Need to translate] Specifications for national triangulation Obsolete GB/T 17941.1-2000

PDF similar to GB/T 17941-2008


Standard similar to GB/T 17941-2008

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Basic data

Standard ID GB/T 17941-2008 (GB/T17941-2008)
Description (Translated English) Quality requirement for digital surveying and mapping achievements
Sector / Industry National Standard (Recommended)
Classification of Chinese Standard A75
Classification of International Standard 07.040
Word Count Estimation 13,183
Date of Issue 2008-06-20
Date of Implementation 2008-12-01
Older Standard (superseded by this standard) GB/T 17941.1-2000
Quoted Standard GB/T 13923; GB/T 13989; GB/T 18315; CH/T 1007
Regulation (derived from) Announcement of Newly Approved National Standards No. 11 of 2008 (No. 124 overall)
Issuing agency(ies) General Administration of Quality Supervision, Inspection and Quarantine of the People's Republic of China, Standardization Administration of the People's Republic of China
Summary This standard specifies the quality of the digital mapping elements and their results should meet the basic requirements. This standard applies to digital elevation models, digital orthophotos, digital raster maps, DLG and other digital mapping results of inspection and acceptance and quality assessment, but also its technical design and quality control of the fundamental basis. Other types of digital mapping results can refer to use.

GB/T 17941-2008: Quality requirement for digital surveying and mapping achievements

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Quality requirement for digital surveying and mapping achievements ICS 07.040 A75 National Standards of People's Republic of China Replacing GB/T 17941.1-2000 Quality digital mapping results Posted 2008-06-20 2008-12-01 implementation Administration of Quality Supervision, Inspection and Quarantine of People's Republic of China Standardization Administration of China released

Table of Contents

Introduction Ⅲ 1 Scope 1 2 Normative references 1 3 Terms and definitions 4 1 General General provisions 2 5 mass elements 5.1 Spatial reference system and results Size 2 5.2 positional accuracy of 2 5.3 attribute accuracy 3 5.4 Integrity 3 5.5 Logical consistency 3 5.6 Time accuracy 4 5.7 image/grid quality 4 Data Quality 5.8 yuan 4 5.9 Characterization of quality 4 5.10 Annex 5 Quality 6 kinds of digital surveying and mapping results quality elements 5 6.1 General Provisions 5 6.2 DLG 5 6.3 Digital Elevation Model 6 6.4 digital orthophoto map 6 6.5 Digital Raster 7 Appendix A (normative) digital elevation model grid interconnection distance 8

Foreword

This standard replaces GB/T 17941.1-2000 "digital mapping products quality requirements - Part 1. digital line topographic maps, digital elevation Model quality requirements. " This standard and GB/T 17941.1-2000 compared to the main changes are as follows. --- According to GB/T 1.1-2000 "Standardization Guide Part 1. Standard structure and write rules" of standards Amendment; --- Increasing the terms and definitions section; --- Remove Table 1 digital line topographic map data on the content; --- Delete Table 2 digital elevation model data on the content; --- Supplementary elements refine the quality requirements of the digital line topographic map, digital elevation models, and adds digital raster maps, digital Orthophotomap quality elements and requirements. Appendix A of this standard is a normative appendix. This standard was proposed by the State Bureau of Surveying and Mapping. This standard by the National Standardization Technical Committee on Geographical Information. This standard by the National Mapping Bureau of Surveying and Mapping Institute of Standardization responsible for drafting. The main drafters of this standard. Ma Xiaoping, Deng Guoqing. This standard replaces the standards previously issued as follows. --- GB/T 17941.1-2000. Quality digital mapping results

1 Scope

This standard defines the quality elements of digital surveying and mapping results and the basic requirements to be met. This standard applies to digital elevation models, digital orthophoto check imagery, digital raster maps, DLG and other digital surveying and mapping results Acceptance and quality assessment, is the fundamental basis for its technical design and quality control. Other types of digital mapping results may refer to use.

2 Normative references

The following documents contain provisions which, through reference in this standard and become the standard terms. For dated references, subsequent Amendments (not including errata content) or revisions do not apply to this standard, however, encourage the parties to the agreement are based on research Whether the latest versions of these documents. For undated reference documents, the latest versions apply to this standard. GB/T 13923 fundamental geographic information features and classification codes GB/T 13989 national basic scale topographic maps and numbering GB/T 18315 digital topographic map series and basic requirements CH/T 1007 Basic Geographic Information Metadata digital products

3 Terms and Definitions

The following terms and definitions apply to this standard. 3.1 Quantitative description of the quality, the qualitative component. That achievement meet the requirements and use of the basic characteristics of purpose. Note. The contents of elements depends on the quality of the applicability of the results of its achievement standard, not all of the elements of quality for all results. 3.2 Part of the quality elements describe a particular aspect of the quality elements.

4 General

Quality 4.1 digital mapping results is through a number of quality elements/quality sub-elements to describe. Different types of digital surveying and mapping results, Its quality is different elemental composition. Quality 4.2 digital element mapping results are shown in Table 1. Table 1 digital quality element mapping results Quality elements Quality sub-element Description Spatial Reference System Geodetic datum geodetic datum used Height Datum elevation datum used Depth reference depth reference adopted Map projection and map projection parameters used

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