GB/T 41282-2022 English PDF

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GB/T 41282-2022: Validation of fractional vegetation cover remote sensing products
Status: Valid

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GB/T 41282-2022	359	Add to Cart	4 days	Validation of fractional vegetation cover remote sensing products	Valid

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Basic data

Standard ID: GB/T 41282-2022 (GB/T41282-2022)
Description (Translated English): Validation of fractional vegetation cover remote sensing products
Sector / Industry: National Standard (Recommended)
Classification of Chinese Standard: A77
Word Count Estimation: 18,154
Issuing agency(ies): State Administration for Market Regulation, China National Standardization Administration

GB/T 41282-2022: Validation of fractional vegetation cover remote sensing products

---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.
Validation of fractional vegetation cover remote sensing products ICS 35.240.70 CCSA77 National Standards of People's Republic of China Verification of authenticity of remote sensing products of vegetation coverage Published on 2022-03-09 2022-10-01 Implementation State Administration for Market Regulation Released by the National Standardization Administration directory Preface III Introduction IV 1 Scope 1 2 Normative references 1 3 Terms and Definitions 1 4 Basic requirements 1 5 Inspection method 2 5.1 Inspection method selection 2 5.2 Direct Test Method 2 5.3 Indirect test method 3 6 Inspection report6 6.1 Cover information6 6.2 Body Information 6 6.3 Summary table of inspection report information 7 Appendix A (Informative) Photographic Calculation Method for Vegetation Coverage 8 Appendix B (Informative) Sample Information of Authenticity Inspection Report of Vegetation Coverage Remote Sensing Products 10 Reference 12

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 Chinese Academy of Sciences. This document is under the jurisdiction of the National Standardization Technical Committee of Remote Sensing Technology (SAC/TC327). This document was drafted by. Beijing Normal University, Institute of Aerospace Information Innovation, Chinese Academy of Sciences, Chinese Academy of Forestry Sciences Resource Information Institute, University of Chinese Academy of Sciences, Institute of Geographical Sciences and Natural Resources Research, Chinese Academy of Sciences. The main drafters of this document. Mu Xihan, Song Wanjuan, Yan Guangjian, Jia Kun, Liu Qingwang, Liu Yaokai, Jiang Xiaoguang, Wu Hua, Wang Xinhong, Liu Zhaoyan.

Introduction

Vegetation coverage, as one of the important biophysical parameters to describe the surface vegetation coverage, is widely used in vegetation change detection, ecological In the fields of environmental assessment, soil and water conservation monitoring, climate change research, etc., in revealing the distribution law of surface vegetation, grasping the status of ecological environment changes and classifying It is of great significance to analyze its development trend and so on. The authenticity verification of vegetation coverage products is an important factor in the production of vegetation coverage remote sensing products and the effective application of vegetation coverage remote sensing products. Support work. This document aims at the common problems in the authenticity test of vegetation coverage remote sensing products, based on the relevant work at home and abroad over the years. In practice, a set of effective workflows and methods are summarized, taking into account different types, different spatial resolutions, and different temporal synthesis methods. To standardize the orderly progress of the authenticity inspection of vegetation coverage remote sensing products OK. The implementation of this document will strongly promote the quality improvement and quantitative application of vegetation coverage remote sensing products. Verification of authenticity of remote sensing products of vegetation coverage

1 Scope

This document specifies the basic requirements, inspection methods and inspection reports for the authenticity inspection of vegetation coverage remote sensing products. This document is applicable to the authenticity test of terrestrial vegetation coverage products of optical satellite remote sensing images, and vegetation produced by using other data sources. Coverage products can also be compared to this document.

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 36296-2018 Guidelines for the authenticity inspection of remote sensing products GB/T 39468-2020 General method for authenticity inspection of terrestrial quantitative remote sensing products

3 Terms and Definitions

The terms and definitions defined in GB/T 36296-2018 and GB/T 39468-2020 and the following terms and definitions apply to this document. 3.1 The proportion of the vertical projection area of the vegetation canopy (including leaves, stems and branches) per unit area. Note. dimensionless, the value ranges from 0 to 1. [Source. GB/T 41280-2022, 3.2] 3.2 sample sample A subset of a population consisting of one or more sampling units. [Source. GB/T 3358.2-2009, 1.2.17] 3.3 relative true value A value close to the true value that is negligibly different from the true value. It can be used in place of the true value for a given purpose. [Source. GB/T 36296-2018, 3.4]

4 Basic requirements

The authenticity inspection of vegetation coverage remote sensing products shall comply with the provisions of Chapter 7 of GB/T 36296-2018, and meet the following requirements. a) The time of the reference object and the remote sensing product of vegetation coverage to be inspected should be the same or similar, and the similar time should be defined according to the vegetation phenological characteristics. The difference was no more than 5 days in the stage of stable vegetation growth, and no more than 2 days in the stage of rapid vegetation change. Vegetation coverage to be inspected The time of the remote sensing product is determined in the following way. the time of the single-day vegetation coverage remote sensing product is the product identification time in the metadata (See Table D.1 in Appendix D of GB/T 41280-2022), the time of the multi-day synthetic vegetation coverage remote sensing product is the product assistance ......

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