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GB/T 12409-2009 English PDF

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GB/T 12409-2009: Geographic grid
Status: Valid

GB/T 12409: Evolution and historical versions

Standard IDContents [version]USDSTEP2[PDF] delivered inStandard Title (Description)StatusPDF
GB/T 12409-2009English509 Add to Cart 4 days [Need to translate] Geographic grid Valid GB/T 12409-2009
GB 12409-1990English479 Add to Cart 4 days [Need to translate] Geographic grid Obsolete GB 12409-1990

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Basic data

Standard ID GB/T 12409-2009 (GB/T12409-2009)
Description (Translated English) Geographic grid
Sector / Industry National Standard (Recommended)
Classification of Chinese Standard A75
Classification of International Standard 07.040; 35.240.70
Word Count Estimation 22,246
Date of Issue 2009-02-06
Date of Implementation 2009-06-01
Older Standard (superseded by this standard) GB 12409-1990
Quoted Standard GB 22021-2008
Regulation (derived from) Announcement of Newly Approved National Standards 2009 No. 2 (total 142)
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 geographic grid division and coding methods, the grid data visualization expression is not as specified in this standard content. This standard applies to identification and geo-spatial location of the natural, social and economic information on the spatial distribution of various types of information provided by the integration of the spatial grid reference for the unit.

GB/T 12409-2009: Geographic grid

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Geographic grid ICS 07.040; 35.240.70 A75 National Standards of People's Republic of China Replacing GB 12409-1990 Geographical grid Posted 2009-02-06 2009-06-01 implementation Administration of Quality Supervision, Inspection and Quarantine of People's Republic of China Standardization Administration of China released

Table of Contents

Introduction Ⅲ Introduction Ⅳ 1 Scope 1 2 Normative references 1 3 Terms and definitions Design Principle 4 on grid 1 4.1 Science 1 4.2 Systemic 2 4.3 Inheritance 2 4.4 Scalability 2 4.5 Applicability 2 5 Coordinate System 2 6 Geographical grid classification and coding 2 6.1 Overview 2 6.2 latitude and longitude coordinates grid 2 Cartesian coordinate grid 6.3 5 Appendix A (informative) Application Example 8 References 16

Foreword

This standard replaces GB 12409-1990 "Geographic grid." The revision of the reference US FGDC-STD-011-2001UnitedStatesNationalGrid and British Britishnational gridreferencesystem standards. This standard compared with GB 12409-1990 main modifications are as follows. --- According to GB/T 1.1-2000 specification of the original standard format. --- Supplement and adjust the terms and their definitions. --- Supplement and adjust the design principles. --- Increasing the positioning reference. --- Grid system of latitude and longitude coordinates of the classification has been simplified from the original seven to five basic level, removed one of the 10 ° × 10 °, 5 ° × 5 °, 2 ° × 2 ° and 30 '× 30', 15 '× 15', 6 '× 6' grid; increase of 10 '× 10', 1 '× 1', 10 "× 10" and 1 "× 1" grid. --- Modify the latitude and longitude coordinates of the grid encoding. --- Increasing the latitude and longitude coordinates of the grid extension rules. --- On the Cartesian coordinate grid classification has been simplified from the original nine to six. Remove them 500m × 500m, 250m × 250m, 50m × 50m, 25m × 25m, 5m × 5m and 2.5m × 2.5m grid; increased 100km × 100km, 10000m × 10000m and 1m × 1m grid. --- Modify the Cartesian coordinate grid encoding. --- Increasing the Cartesian coordinate grid expansion rules. --- Removed to scale topographic map sheet series range as a grid cell grid system. --- Increase the informative Appendix A "Application Examples." Including vector data or grid data into a standard grid data shows Exemplary embodiments and to generate a standard grid data. 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 was drafted. National Geomatics Center of China, Beijing Shanhai Jingwei Information Technology Co., Ministry of Water Resources Information Center, Chinese Academy of Surveying and Mapping, Institute of Geographic Sciences and Natural Resources Research, the National Development and Reform Commission of Macroeconomic Research Institute, built Let Comprehensive Survey Research and Design Institute. The main drafters of this standard. Li Li, SCI Caowu Feng, Chen Zidan, Su Shan dance, once Lan, Jianbang, Huang Jian, Li Haochuan. This standard replaces the standards previously issued as follows. --- GB 12409-1990.

Introduction

Geographical grid is a scientific, concise reference positioning system is existing measurement reference system, administrative divisions and other specialized fixed frame of reference Supplementary bit systems. Geographical grid applications, not only can improve the efficiency of the spatial distribution of information integration, data accuracy and can reduce losses and capital Source consumption. In recent years, GIS technology is widely popular application, the use of a grid in the form of natural, social and economic information should be organized Examples of use are not uncommon. In order to meet the development of science and technology, support sharing of geographic data, meet the application requirements, to facilitate multi-source, multi-scale Of geospatial information integration and application analysis, scientific, practical and consistent geospatial positioning grid. Geographical grid using latitude and longitude coordinates of the grid (in warp and weft mesh grid division) and Gauss - Kruger projection Cartesian coordinate grid (in kilometers network Divided grid) combination, these two types of grid interconnection having a more rigorous mathematical relationship can be interchangeable. Gauss - Kruger projection plane Cartesian coordinate system is the coordinate system of scale topographic map series used, can enjoy using this coordinate system already large base Surveying and mapping results, but also has broad application base. Geographical grid

1 Scope

This standard specifies the classification and coding methods geographic grid, grid visualization of data as the content is not specified in this standard. This standard applies to the spatial distribution of identification and geo-spatial location of the natural, social and economic information for all types of information integration mention To the grid for the spatial reference unit.

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 22021-2008 National Geodetic Survey basic technical requirements

3 Terms and Definitions

The following terms and definitions apply to this standard. 3.1 Network consists of two or more groups consisting of set of curves, curve curve set by an algorithm intersect. Note. The set of curves to divide space into grid cells. [ISO 19123.2005] 3.2 The basic unit of a grid system-level grid. 3.3 According to certain mathematical rules for dividing the earth's surface to form a grid. 3.4 A certain latitude and longitude on the Earth's surface is divided intervals to form a grid. 3.5 The Earth's surface area by the laws of mathematics projected onto the plane, according to a certain pitch and the vertical and horizontal coordinates unified coordinate origin of surface area Dividing constituted grid. 3.6 According to certain rules, giving the process a unique identification code of grid cells. Design Principle 4 geographic grid 4.1 Science Geographical grid were established in the latitude and longitude coordinates and the Cartesian coordinate grid grid online two grid with a more rigorous mathematical relationship can be mutually Conversion.

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