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GB/T 41279-2022: Validation of albedo remote sensing products
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Validation of albedo remote sensing products
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GB/T 41279-2022
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Basic data | Standard ID | GB/T 41279-2022 (GB/T41279-2022) | | Description (Translated English) | Validation of albedo remote sensing products | | Sector / Industry | National Standard (Recommended) | | Classification of Chinese Standard | A77 | | Word Count Estimation | 23,271 | | Issuing agency(ies) | State Administration for Market Regulation, China National Standardization Administration | GB/T 41279-2022: Validation of albedo 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 albedo remote sensing products
ICS 33.200
CCSA77
National Standards of People's Republic of China
Authenticity inspection of albedo remote sensing products
Published on 2022-03-09
2022-10-01 Implementation
State Administration for Market Regulation
Released by the National Standardization Administration
directory
Preface I
Introduction II
1 Scope 1
2 Normative references 1
3 Terms and Definitions 1
4 Basic requirements 2
5 Inspection method 2
5.1 Selection of inspection methods and requirements for inspection objects 2
5.2 Direct Test Method 2
5.3 Indirect test method 4
6 Inspection report6
6.1 Cover information6
6.2 Body Information 6
6.3 Summary table of inspection report information 7
Appendix A (Informative) Spatial Representative Evaluation Method8
Appendix B (normative) Uplink/Downlink Radiation Measurements 9
Appendix C (Informative) Ground Measurement Radiation Data Processing 10
Appendix D (normative) Band Conversion Calculation 11
Appendix E (normative) True Albedo Calculation 13
Appendix F (Informative) Method for Obtaining the Sky Scattered Light Ratio 14
Appendix G (Informative) Sample Information of Authenticity Inspection Report of Albedo Remote Sensing Products 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 Chinese Academy of Sciences.
This document is under the jurisdiction of the National Standardization Technical Committee of Remote Sensing Technology (SAC/TC327).
This document is drafted by. Institute of Aerospace Information Innovation, Chinese Academy of Sciences, Beijing Normal University, Lanzhou University, Zhejiang Normal University, China
Institute of Qinghai-Tibet Plateau, Academy of Sciences, Peking University, Southwest University.
The main drafters of this document. You Dongqin, Wen Jianguang, Liu Qiang, Wu Xiaodan, Lin Xingwen, Tang Yong, Xiao Qing, Liu Qinhuo, Li Xin, Jiao Zixi,
Fan Wenjie, Ma Mingguo, Liu Zhaoyan, Wang Xinhong.
Introduction
Surface albedo reflects the ability of the Earth's surface to reflect solar radiation. As an important parameter of the earth's radiation budget, the surface reaction
Irradiance is of great significance in the study of Earth's energy balance, medium and long-term weather forecasting, and global change.
At present, remote sensing data are processed in series through remote sensing models and inversion methods, and various global or local regional inversions have been published at home and abroad.
Illuminance remote sensing products. The purpose of this document is to formulate scientific and standardized methods and procedures for the authenticity inspection of albedo remote sensing products, which is conducive to comprehensive and objective
To evaluate its accuracy and analyze its uncertainty, improve the quality of albedo remote sensing products, and promote the quantitative application of albedo remote sensing products.
Authenticity inspection of albedo remote sensing products
1 Scope
This document specifies the basic requirements, inspection methods and inspection methods for the authenticity inspection of the albedo remote sensing products of the surface to the solar radiation reflection band.
inspection report.
This document is applicable to the authenticity verification of albedo remote sensing products of land surface and water body surface.
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 the following apply to this document.
3.1
albedo albedo
The ratio of the radiant flux reflected from the surface of the object to the hemisphere (2π) space to the radiant flux incident on the object surface in the hemisphere (2π) space.
[Source. GB/T 36299-2018, 3.8]
3.2
black sky albedo blackskyalbedo
In the case of only considering direct light irradiation, the radiant flux reflected from the surface of the object to the hemisphere (2π) space and the incident direct radiant flux
Ratio.
[Source. GB/T 36299-2018, 3.11]
3.3
whitesky albedo whiteskyalbedo
In the case of only considering the scattered light irradiation, the radiant flux reflected from the surface of the object to the hemisphere (2π) space and the incident scattered radiant flux
Ratio.
[Source. GB/T 36299-2018, 3.12]
3.4
true albedo actualalbedo
In the real natural situation where the incident radiation includes both direct light irradiation and scattered light irradiation, the surface of the object reflects in the hemisphere (2π) space
The ratio of the radiant flux to the incident radiant flux.
3.5
The ratio of the incident sky scattered radiant flux to the incident radiant flux.
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