HOME   Cart(2)   Quotation   About-Us Policy PDFs Standard-List
www.ChineseStandard.net Database: 189760 (25 Oct 2025)

GB/T 40038-2021 English PDF

US$249.00 · In stock
Delivery: <= 3 days. True-PDF full-copy in English will be manually translated and delivered via email.
GB/T 40038-2021: Validation of vegetation index remote sensing products
Status: Valid
Standard IDContents [version]USDSTEP2[PDF] delivered inStandard Title (Description)StatusPDF
GB/T 40038-2021English249 Add to Cart 3 days [Need to translate] Validation of vegetation index remote sensing products Valid GB/T 40038-2021

PDF similar to GB/T 40038-2021


Standard similar to GB/T 40038-2021

GB/T 36299   GB/T 18314   GB/T 12898   GB/T 40034   GB/T 40033   

Basic data

Standard ID GB/T 40038-2021 (GB/T40038-2021)
Description (Translated English) Validation of vegetation index remote sensing products
Sector / Industry National Standard (Recommended)
Classification of Chinese Standard A77
Word Count Estimation 13,113
Issuing agency(ies) State Administration for Market Regulation, China National Standardization Administration

GB/T 40038-2021: Validation of vegetation index 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 vegetation index remote sensing products ICS 07.040 A77 National Standards of People's Republic of China Verification of the authenticity of vegetation index remote sensing products Released on 2021-04-30 2021-11-01 implementation State Administration of Market Supervision and Administration Issued by the National Standardization Management Committee

Table of contents

Foreword Ⅲ Introduction Ⅳ 1 Scope 1 2 Normative references 1 3 Terms and definitions 1 4 Basic requirements 2 5 Inspection method 2 5.1 Inspection method selection 2 5.2 Direct inspection method 2 5.3 Indirect inspection method 4 6 Inspection report 6 6.1 Cover information 6 6.2 Body information 7 6.3 Summary of inspection report information 7 Appendix A (normative appendix) Ground bidirectional reflectivity factor measurement 8 Reference 9

Foreword

This standard was drafted in accordance with the rules given in GB/T 1.1-2009. This standard was proposed by the Chinese Academy of Sciences. This standard is under the jurisdiction of the National Standardization Technical Committee of Remote Sensing Technology (SAC/TC327). Drafting organizations of this standard. Institute of Aerospace Information Innovation, Chinese Academy of Sciences, Beijing Normal University, Institute of Qinghai-Tibet Plateau, Chinese Academy of Sciences, Beijing Beijing University, Institute of Geographical Sciences and Natural Resources Research, Chinese Academy of Sciences. The main drafters of this standard. Wen Jianguang, Peng Jingjing, You Dongqin, Liu Qiang, Tang Yong, Xiao Qing, Liu Qinhuo, Li Xin, Fan Wenjie, Ge Yong, Wu Hua, Wang Xinhong and Liu Zhaoyan.

Introduction

The vegetation index is a series of indexes formed by the linear or non-linear combination of two or more remote sensing sensor band data, which can be used for diagnosis Vegetation growth status, green vegetation vitality and inversion of various vegetation parameters. The vegetation index has a variety of specific definitions, such as the ratio of the reflectance ratio of the red light band and the near-infrared band, the vegetation index (RVI) and the Normalized Vegetation Index (NDVI), the Soil Regulated Vegetation Index (SAVI) that reduces the soil background, and the increase in sensitivity to dense vegetation areas Strong Vegetation Index (EVI), etc. The reflectance of sensors with red and near-infrared bands is often used to calculate the vegetation index, which is based on multiple global vegetation index products Has been released. Due to the limitations of data and algorithms, there are inevitably errors in vegetation index products, which need to be verified for authenticity to obtain Obtain the accuracy and uncertainty of the product. In the past, due to different verified data, processes, and evaluation standards, the accuracy of the products obtained was not comparable. Brings difficulties to users in quantitative applications. Therefore, it is necessary to formulate scientific and standardized verification standards for the authenticity of vegetation index remote sensing products. Verification of the authenticity of vegetation index remote sensing products

1 Scope

This standard specifies the basic requirements, inspection methods and inspection reports for the authenticity inspection of vegetation index remote sensing products. This standard is applicable to the authenticity inspection of remote sensing products of the vegetation index of the bottom of the atmosphere.

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 modified versions) is applicable to this document. GB/T 36296-2018 Guidelines for authenticity inspection of remote sensing products GB/T 39468-2020 General method for authenticity inspection of land quantitative remote sensing products

3 Terms and definitions

The following terms and definitions defined in GB/T 36296-2018 and GB/T 39468-2020 apply to this document. 3.1 Bidirectional reflectance distribution function bidirectionalreflectancedistributionfunction; BRDF Bidirectional reflectance distribution function The ratio of the microincrement of reflected irradiance in a specific direction on the surface of an object to the microincrement of incident irradiance in a specific direction. Note. The unit is degree per sphere (sr-1). [GB/T 36299-2018, definition 3.6] 3.2 Bidirectional reflectance factor Bidirectional reflectance factor The reflected radiance of the surface of the object in a specific direction and the reflected radiance of an ideal diffuse reflector in that direction under the same irradiance condition Ratio. [GB/T 36299-2018, definition 3.7] 3.3 Spectralreflectivity The ratio of the reflected radiant flux of an object to a certain band of electromagnetic waves and its incident radiant flux. 3.4 Spectral response function Describe the function of the response rate of the remote sensor to the incident radiation at different wavelengths. 3.5 Vegetation index A linear or non-linear combination of remote sensing image data from different spectral bands can reflect the growth and distribution of green plants Characteristic index. [GB/T 30115-2013, definition 3.11]

Tips & Frequently Asked Questions:

Question 1: How long will the true-PDF of GB/T 40038-2021_English be delivered?

Answer: Upon your order, we will start to translate GB/T 40038-2021_English as soon as possible, and keep you informed of the progress. The lead time is typically 1 ~ 3 working days. The lengthier the document the longer the lead time.

Question 2: Can I share the purchased PDF of GB/T 40038-2021_English with my colleagues?

Answer: Yes. The purchased PDF of GB/T 40038-2021_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 [email protected]. 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.