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GB/T 41149-2021 English PDF

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US$399.00 · In stock
Delivery: <= 4 days. True-PDF full-copy in English will be manually translated and delivered via email.
GB/T 41149-2021: Specifications for quality requirements and evaluation of fundamental geographic information data
Status: Valid

Standard ID	USD	BUY PDF	Lead-Days	Standard Title (Description)	Status
GB/T 41149-2021	399	Add to Cart	4 days	Specifications for quality requirements and evaluation of fundamental geographic information data	Valid

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Basic data

Standard ID: GB/T 41149-2021 (GB/T41149-2021)
Description (Translated English): Specifications for quality requirements and evaluation of fundamental geographic information data
Sector / Industry: National Standard (Recommended)
Classification of Chinese Standard: A75
Word Count Estimation: 21,229
Issuing agency(ies): State Administration for Market Regulation, China National Standardization Administration

GB/T 41149-2021: Specifications for quality requirements and evaluation of fundamental geographic information data

---This is a DRAFT version for illustration, not a final translation. Full copy of true-PDF in English version (including equations, symbols, images, flow-chart, tables, and figures etc.) will be manually/carefully translated upon your order.
Specifications for quality requirements and evaluation of fundamental geographic information data ICS 07:040 CCSA75 National Standards of People's Republic of China Basic geographic information data quality requirements and assessment Published on 2021-12-31 2021-12-31 Implementation State Administration for Market Regulation Released by the National Standardization Administration directory Preface I 1 Scope 1 2 Normative references 1 3 Terms and Definitions 1 4 Basic requirements 2 4:1 Spatial reference system 2 4:2 Logical Consistency 2 4:3 Time Quality 2 4:4 Position Accuracy 3 4:5 Attribute Precision 3 4:6 Integrity 3 4:7 Topology and Characterization 3 4:8 Grid quality 4 4:9 Metadata 4 5 Vector data quality requirements4 5:1 Positioning Basics 4 5:2 Water system 4 5:3 Residential Areas and Facilities 4 5:4 Traffic 5 5:5 Pipeline 5 5:6 Realm and Political District 5 5:7 Landscape 5 5:8 Vegetation and soil quality 6 5:9 Place names 6 6 Raster data quality requirements6 6:1 Image data 6 6:2 Grid data 6 7 Quality Assessment 7 7:1 Quality Characterization 7 7:2 Quality scoring methods7 7:3 Content of Quality Score 8 7:4 Quality assessment methods 8 7:5 Report preparation8 Appendix A (Informative) Data Layer 9 of Basic Geographic Information Data Appendix B (normative) Basic geographic information data quality assessment method 11 Appendix C (Informative) Basic Geographic Information Data Evaluation Report 15 Reference 18

foreword

This document is in accordance with the provisions of GB/T 1:1-2020 "Guidelines for Standardization Work Part 1: Structure and Drafting Rules of Standardization Documents" drafted: Please note that some content of this document may be patented: The issuing agency of this document assumes no responsibility for identifying patents: This document is proposed by the Ministry of Natural Resources of the People's Republic of China: This document is under the jurisdiction of the National Geographic Information Standardization Technical Committee (SAC/TC230): This document is drafted by: Sichuan Surveying and Mapping Product Quality Supervision and Inspection Station of the Ministry of Natural Resources, National Surveying and Mapping Product Quality Inspection and Testing Center, The Sixth Topographic Survey Team of the Ministry of Natural Resources, the Third Aerial Survey and Remote Sensing Institute of the Ministry of Natural Resources, Beijing Institute of Surveying and Mapping Design and Research, Tianjin Institute of Surveying and Mapping, Chengdu Planning Information Technology Center, Zhejiang Provincial Surveying and Mapping Product Quality Supervision and Inspection Station, Hunan Provincial Surveying and Mapping Product Quality Supervision and Inspection Authorization Station, Anhui Provincial Surveying and Mapping Product Quality Supervision and Inspection Station Painted product quality supervision and inspection station: The main drafters of this document: Li Chong, Tan Mingjian, Zhang Jixian, Huang Xianzhi, Chen Yanru, Li Haolin, Zhang Li, Chen Hua, Han Wenli, Deng Zhiwen, Wang Shan, Yang Jianyi, Li Qian, Zhang Xiao, Tan Li, Wang Hui, Zhan Biwei, Wang Yi, Wang Pan, Hou Yajuan, Zhu Xiaohong, Gao Dongqiang, Zhang Jinbiao, Sun Xuemin, Meng Guoliang, Guo Wen, Du Yong: Basic geographic information data quality requirements and assessment

1 Scope

This document specifies the basic requirements for basic geographic information data and the specific quality requirements for vector and raster data and basic geographic information How to assess the quality of data: This document is applicable to the inspection, acceptance and quality assessment of basic geographic information data:

2 Normative references

The contents of the following documents constitute essential provisions of this document through normative references in the text: Among them, dated citations documents, only the version corresponding to that date applies to this document; for undated references, the latest edition (including all amendments) applies to this document: GB/T 13923 Basic Geographic Information Element Classification and Code GB/T 13989 National Basic Scale Topographic Map Framing and Numbering GB/T 20257 (all parts) National Basic Scale Map Schema GB/T 20258 (all parts) Basic geographic information element data dictionary GB/T 24356 Quality inspection and acceptance of surveying and mapping results GB 35650 National Basic Scale Map Surveying and Mapping Basic Technical Regulations

3 Terms and Definitions

The following terms and definitions apply to this document: 3:1 fundamental geographic information data As a unified spatial positioning framework and spatial analysis basis, geographic information data reflects and describes the positioning basis, water system, The location, shape and location of natural and social elements such as residential areas and facilities, transportation, pipelines, borders and political districts, landforms, vegetation and soil quality, place names, etc: properties, etc: [Source: GB 21139-2007, 3:1, with modifications] 3:2 vector data vectordata A general term for graphic data such as spatial points, lines, and surfaces represented by coordinates or ordered coordinate strings, and related attribute data associated with them: [Source: GB/T 14911-2008, 2:63] 3:3 rasterdata A data set that divides geographic space into cells arranged in rows and columns, and each cell has different "values": NOTE: There are two main types: image—a two-dimensional matrix of regularly spaced elements that make up a pattern; grid—a regular or Near regular inlays: [Source: GB/T 14911-2008, 2:64] ......

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Tips & Frequently Asked Questions:

Question 1: How long will the true-PDF of GB/T 41149-2021_English be delivered?

Answer: Upon your order, we will start to translate GB/T 41149-2021_English as soon as possible, and keep you informed of the progress. The lead time is typically 2 ~ 4 working days. The lengthier the document the longer the lead time.

Question 2: Can I share the purchased PDF of GB/T 41149-2021_English with my colleagues?

Answer: Yes. The purchased PDF of GB/T 41149-2021_English will be deemed to be sold to your employer/organization who actually pays for it, including your colleagues and your employer's intranet.

Question 3: Does the price include tax/VAT?

Answer: Yes. Our tax invoice, downloaded/delivered in 9 seconds, includes all tax/VAT and complies with 100+ countries' tax regulations (tax exempted in 100+ countries) -- See Avoidance of Double Taxation Agreements (DTAs): List of DTAs signed between Singapore and 100+ countries

Question 4: Do you accept my currency other than USD?

Answer: Yes. If you need your currency to be printed on the invoice, please write an email to Sales@ChineseStandard.net. In 2 working-hours, we will create a special link for you to pay in any currencies. Otherwise, follow the normal steps: Add to Cart -- Checkout -- Select your currency to pay.