GB/T 39624-2020 English PDF

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GB/T 39624-2020: Technical specification for underwater topographic survey of airborne lidar
Status: Valid

Standard ID	USD	BUY PDF	Lead-Days	Standard Title (Description)	Status
GB/T 39624-2020	519	Add to Cart	5 days	Technical specification for underwater topographic survey of airborne lidar	Valid

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Basic data

Standard ID: GB/T 39624-2020 (GB/T39624-2020)
Description (Translated English): Technical specification for underwater topographic survey of airborne lidar
Sector / Industry: National Standard (Recommended)
Classification of Chinese Standard: A75
Classification of International Standard: 07.040
Word Count Estimation: 28,245
Date of Issue: 2020-12-14
Date of Implementation: 2020-12-14
Quoted Standard: GB 12319; GB 12327; GB/T 13989; GB/T 17278; GB/T 18316; GB/T 19710; GB/T 20257.1; GB/T 20257.2; GB/T 20257.3; GB/T 20257.4; GB/T 24356; GB/T 32067; CH/T 8023; CH/T 8024-2011; CH/T 9008.2; CH/T 9009.2; CH/Z 9026
Regulation (derived from): National Standard Announcement No. 28 of 2020
Issuing agency(ies): State Administration for Market Regulation, China National Standardization Administration
Summary: This standard specifies the basic requirements, preparations, data acquisition, data processing, quality inspection of results, and results collation and submission for airborne lidar underwater topographic surveying. This standard is applicable to underwater topographic surveying operations in waters with a depth of not more than 50 m using airborne lidar measurement technology.

GB/T 39624-2020: Technical specification for underwater topographic survey of airborne lidar

---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.
(Technical specification for airborne lidar underwater topographic survey) ICS 07:040 A75 National Standards of People's Republic of China Technical specification for airborne lidar underwater topographic survey 2020-12-14 release 2020-12-14 implementation State Administration for Market Regulation Issued by the National Standardization Management Committee

Table of contents

Preface Ⅲ Introduction Ⅳ 1 Scope 1 2 Normative references 1 3 Terms and definitions 1 4 Abbreviations 3 5 Basic requirements 4 5:1 General provisions 4 5:2 Spatial datum 4 5:3 Time base 4 5:4 Projection and Framing 4 5:5 Schematic symbols 4 5:6 Point cloud density requirements 4 5:7 Point cloud plane accuracy 5 5:8 Point cloud elevation accuracy 5 5:9 Metadata 6 6 Preparation 6 6:1 Demand analysis 6 6:2 Data collection 6 6:3 Site survey 6 6:4 Selection of equipment 6 6:5 Compilation of technical design documents 7 7 Data acquisition 7 7:1 Comprehensive inspection 7 7:2 Route design 9 7:3 Data acquisition requirements 9 7:4 Data acquisition flight 10 7:5 Data supplement test 10 8 Data processing 11 8:1 Data processing flow 11 8:2 Data collation 11 8:3 Waveform data processing 12 8:4 POS data processing 12 8:5 Point cloud data processing 12 8:6 Production of results 13 9 Results quality check 13 9:1 Quality inspection and acceptance of results 13 9:2 Inspection of original collection results 13 9:3 Post-processing results check 13 10 Arrangement and submission of results 14 10:1 Requirements for submission of results 14 10:2 Submission of results 14 Appendix A (Normative Appendix) Waveform Achievement Metadata 15 Appendix B (Normative Appendix) Point Cloud Achievement Metadata 17 Appendix C (Normative Appendix) Calculation Record of Installation Angle 19 Appendix D (Normative Appendix) Eccentric component measurement record 20 Appendix E (informative appendix) Example of eccentric component measurement record 21 Appendix F (Normative Appendix) Flight Record 22 Reference 23

Foreword

This standard was drafted in accordance with the rules given in GB/T 1:1-2009: This standard was proposed by the Ministry of Natural Resources of the People's Republic of China: This standard is under the jurisdiction of the National Geographic Information Standardization Technical Committee (SAC/TC230): Drafting organizations of this standard: Beijing Siwei Space Digital Technology Co:, Ltd:, Institute of Electronics, Chinese Academy of Sciences, Shenzhen University, Zhejiang Water Lihekou Research Institute, Shanghai Institute of Optics and Fine Mechanics, Chinese Academy of Sciences, and Yangtze River Scientific Research Institute of Yangtze River Water Resources Commission: The main drafters of this standard: Xu Baolong, Shao Yongshe, Li Qingquan, Wei Ronghao, He Yan, Zheng Xuedong, Wang Chisheng, Ren Shaohua, Zou Shuangchao, Gao Hongzhi, Yan Bing, Song Li, Guo Kai, Wang Jing, Wang Zhaoxia, Lei Xin:

Introduction

Airborne lidar measurement is a new technology to quickly obtain high-precision three-dimensional geographic information in space: It integrates lidar technology with high precision Inertial navigation measurement technology and high-precision dynamic GNSS differential measurement technology are integrated, which is faster and more precise than traditional photogrammetric technology: The advantages of obtaining three-dimensional information of underwater landforms and ground features: In recent years, airborne lidar measurement technology has been rapidly developed, Underwater topographic surveying and mapping fields such as coastal zones, waters near islands and reefs, and inland waters have been applied: This standard is oriented to the needs of underwater topographic measurement, based on the analysis of existing technology, combined with domestic and foreign airborne lidar underwater topographic measurement The development level and characteristics of technology put forward standardized technical requirements for the use of airborne lidar for underwater topographic survey operations: Technical specification for airborne lidar underwater topographic survey

1 Scope

This standard specifies the basic requirements, preparations, data acquisition, data processing, and results quality inspection of airborne lidar for underwater topographic measurement: Check the results and submit them: This standard applies to the use of airborne lidar measurement technology for underwater topographic survey operations in waters with a depth of not more than 50m:

2 Normative references

The following documents are indispensable for the application of this document: For dated reference documents, only the dated version applies to this article Pieces: For undated references, the latest version (including all amendments) applies to this document: GB 12319 Chinese chart scheme GB 12327 Hydrographic Survey Specification GB/T 13989 National Basic Scale Topographic Map Framing and Numbering GB/T 17278 Basic requirements for digital topographic map products GB/T 18316 Quality Inspection and Acceptance of Digital Surveying and Mapping Results GB/T 19710 Geographic Information Metadata GB/T 20257 (all parts) Basic scale map of the country GB/T 24356 Quality Inspection and Acceptance of Surveying and Mapping Results GB/T 32067 Schematic legends and symbols of marine elements CH/T 8023 Airborne Lidar Data Processing Technical Specification CH/T 8024-2011 Airborne Lidar Data Acquisition Specification CH/T 9008:2 Fundamental Geographic Information Digital Achievement 1:500, 1:1000, 1:2000 Digital Elevation Model CH/T 9009:2 Fundamental Geographic Information Digital Achievement 1:5000, 1:10000, 1:25000, 1:50,000, 1:100,000 Digital elevation model CH/Z9026 Digital Depth Model of Basic Geographic Information Digital Achievement

3 Terms and definitions

The following terms and definitions apply to this document: 3:1 Airbornelidar It is mounted on an aviation platform and integrates laser radar equipment, GNSS and IMU equipment such as laser detection and ranging systems: Note: This standard specifically refers to the airborne lidar sounding system used for water depth measurement to obtain the geometric and physical characteristics of the target surface: 3:2 Underwatertopographicalsurvey The process of comparing underwater landforms and ground features directly with known or indirect quantities using bathymetry: Note: This standard specifically refers to the acquisition of geometric feature information of underwater topography: ......

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