摘要
遥感实验与真实性检验始终在遥感科学与技术发展中发挥重要的作用,遥感实验是真实性检验的基础,真实性检验是遥感算法精度的重要保障,是遥感产品质量提升的重要途径。中国遥感实验和真实性检验发展历经遥感应用实验、定量遥感机理研究实验以及真实性检验综合实验等3个主要发展阶段,遥感系列实验有力推动了中国遥感真实性检验理论和方法的发展,形成了从遥感观测到像元“真值”的遥感产品真实性检验系统性技术链条,发布实施了遥感真实性检验系列国家标准,构建了中国算法测评与真实性检验平台。2022年11月4—6日,中国举行了“首届遥感实验与真实性检验学术论坛”,围绕遥感实验与真实性检验理论与实践、地面观测与不确定性、真实性检验实践与平台、遥感实验与真实性检验的未来发展等多个议题展开了热烈的交流与讨论。论文在总结和回顾中国遥感实验与真实性检验领域主要进展的基础上,阐述中国遥感实验与真实性检验面临的问题与挑战,文章最后对其发展前景进行了展望。
Remote sensing experiments and products validation have always played an important role in the development of remote sensing science and technology.As an important way of understanding the natural characteristics,remote sensing experiments have played an important role in remote sensing science and technology research.Remote sensing product validation is crucial to ensuring the high accuracy of remote sensing algorithms and improving the quality of remote sensing products.Remote sensing experiments are the basis of validation because the ground truth,which is derived from field experiments,is the core of the validation.However,obtaining the ground truth is a complex systematic process,including optimized sampling,field observation,scale transformation,and validation.Thus,reducing the error of each process is important in obtaining high-quality ground truth.On April 6,2022,China held the“First Forum on Remote Sensing Field Experiments and Products Validation”where intense exchanges and discussions on the key topics occurred,including remote sensing experiments and validation theory and technology,ground field observation and uncertainty,validation practice and platform,and the future development of remote sensing experiments and validation.More than 1000 scholars and students from different domestic scientific research institutes and universities attended the event.On the basis of reviewing the main progress in the field of remote sensing experiments and validation in China,thus paper summarizes the opinions and suggestions of the Chinese scientists who attended the meeting and expounds on the problems and challenges faced by China in terms of remote sensing field experiments and products validation.The development process of remote sensing experiments and products validation in China has three main development stages,namely,the remote sensing application experiment stage from the year of 1978,the quantitative remote sensing mechanism experiment stage from the year of 1994,and the comprehensive experiment stage of the quantitative remote sensing mechanism and validation.Significant progress has been made in experimental technology,validation technology,national specifications of product validation,and the validation system platform.Five related topics of remote sensing experiments and product validation have been discussed by 80 scientists,namely,the theoretical framework and basic theory of remote sensing product validation,ground observation and standardized data processing,land surface heterogeneity and scale transformation,product validation and evaluation,and system platform and data sharing.It should be considered systematically from the entire link key process of obtaining ground truth for remote sensing experiment and validation to truly become an important basis in ensuring the quality of satellite remote sensing products.Finally,the prospect of remote sensing experiment and validation in China is discussed.Remote sensing experiment and validation should be implemented from the joint efforts of national and even global scientific researchers to achieve global implementation through international cooperation and improve the ability of remote sensing experiments and product validation.
作者
闻建光
柳钦火
李增元
李新
刘绍民
肖青
高志海
马明国
车涛
刘良云
方红亮
阎广建
葛咏
陈尔学
张勇
马灵玲
吴小丹
陈曦
WEN Jianguang;LIU Qinhuo;LI Zengyuan;LI Xin;LIU Shaomin;XIAO Qing;GAO Zhihai;MA Mingguo;CHE Tao;LIU Liangyun;FANG Hongliang;YAN Guangjian;GE Yong;CHEN Erxue;ZHANG Yong;MA Linling;WU Xiaodan;CHEN Xi(State Key Laboratory of Remote Sensing Science,Aerospace Information Research Institute,Chinese Academy of Sciences,Beijing 100101,China;Research Institute of Forest Resource Information Techniques,Chinese Academy of Foresty,Beijing 100091,China;National Tibetan Plateau Data Center,Institute of Tibetan Plateau Research,Chinese Academy of Sciences,Beijing 100101,China;State Key Laboratory of Earth Surface Processes and Resource Ecology,Faculty of Geographical Science,Beijing Normal University,Beijing 100875,China;Chongqing Jinfo Mountain Karst Ecosystem National Observation and Research Station,School of Geographical Sciences,Southwest University,Chongqing 400715,China;Northwest Institute of Eco-Environment and Resources,Chinese Academy of Sciences,Lanzhou 730000,China;Institute of Geographic Sciences and Natural Resources Research,Chinese Academy of Sciences,Beijing 100101,China;National Satellite Meteorological Centre,China Meteorological Administration,Beijing 100081,China;College of Earth and Environmental Sciences,Lanzhou University,Lanzhou 730000,China;College of Resources and Environment,University of Chinese Academy of Sciences,Beijing 100049,China)
出处
《遥感学报》
EI
CSCD
北大核心
2023年第3期573-583,共11页
NATIONAL REMOTE SENSING BULLETIN
基金
高分辨率对地观测系统重大专项(编号:21-Y20B02-9003-19/22,21-Y20B01-9001-19/22)。
关键词
遥感实验
真实性检验
优化采样
尺度转换
像元真值
remote sensing experiment
product validation
optimize sampling
scale transformation
ground truth
作者简介
第一作者:闻建光,研究方向为定量遥感。E-mail:wenjg@aircas.ac.cn。
