Towards Geo-spatial information Science in Big Data Era
1LIESMARS, Wuhan University
Collaborative Innovation Center for Geospatial Technology
Abstract: Since the 1990s, with the advent of worldwide Information Revolution and the development of Internet, Geospatial Information Science has also come of age, which pushed forward the building of Digital Earth and Cyber City. As we entered the 21st century, with the development and integration of global information technology and industrialization, Internet of Things and Cloud Computing came into being. Human society enters into the Big Data Era. We are taking conscientious efforts to build Smart Earth and Smart City to promote low Carbon, green and sustainable development. This article covers the key features (Ubiquitous, multi-dimension and dynamics, Internet+Networking, full automation and real-time, from sensing to recognition, crowdsourcing and VGI, and service-oriented) of Geospatical Information Science in the Big Data Era and addresses the key technical issues (non-linear four dimensional Earth reference frame system, space based enhanced GNSS, space-air and land unified network communication techniques, on board processing techniques for multi-sources image data, smart interface service techniques for space-borne information, space based resource scheduling and network security, design and developing of a payloads based multi-functional satellite platform), that need to be resolved to provide a new definition of Geospatial Information Science in big data era.
Based on the discussion in this paper, the author finally proposes a new definition of Geospatial information science (Geomatics), i.e Geomatics is a multiple discipline science and technology which，using a systematic approach，integrates all the means for spatio-temporal data acquisition, information extraction, networked management, knowledge discovering, spatial sensing and recognition, as well as intelligent location based services of any physical objects and human activities around the earth and its environment. Starting from this new definition, geospatial information science will get much more chances and find much more tasks in big data era for generation of smart earth and smart city. Our profession will make great contribution to human sustainable development.
Keywords: Big data, Geospatial information science, Smart Earth, Ubiquitous sensor network, spatial sensing and recognition.
Prof.Dr.-Ing. Deren LI, a scientist in photogrammetry, remote sensing and geo-information, with dual membership of both the Chinese Academy of Sciences and the Chinese Academy of Engineering, member of the Euro-Asia International Academy of Science ,Doctor-Ing. of Sttutgart Univercity in 1985 and honorary doctorate of ETH in 2008. He is the Professor of Wuhan University, Chairman of the Academic Committee of Wuhan University and the State Key Laboratory of Information Engineering in Surveying, Mapping and Remote Sensing. He served as Comm.III and Comm.VI president in 1988-1992 and 1992-1996. He has been elected as ISPRS fellow and honorary member in 2010 and 2012 respectively.