■ Background and Necessity
● Research background
- As the use of satellite information becomes more and more important in many areas, including land management, urban planning, environmental monitoring, and disaster response, it is becoming important to identify related research trends.
- The satellite information utilization GIS (Geographic Information System) market is expected to grow significantly, and the technology, user demand, industrial structure, and legislative environment related to satellite information utilization are also changing significantly, so it is necessary to respond.
● Need for research
- GIS research is highly interdisciplinary and multidisciplinary, including environmental sciences, earth sciences, computer sciences, agricultural and social sciences, and has the potential to have a significant impact on a wide range of issues, including national, urban, environmental, and catastrophic trends. need to figure out
● Research purpose
- To identify the latest research and trends in GIS, check the latest information on new technologies and methods, and provide basic data that can be used for the latest developments in the field
■ Research contents
● Trends in GIS research using satellite information
- (Main research areas) Land cover and use, urban development and expansion, climate change and environmental monitoring, disaster response, etc.
- (Major research methods and tools) Deep learning (CNN, etc.), time series analysis, object detection and tracking, multi-sensor fusion, cloud computing, etc. are being used.
- (Problems) There are limitations in data quality, restrictions in access, and difficulty in integrating sources.
● Research trends for national R&D projects using satellite information
- From 2020 to 2023, 210 satellite information utilization-related tasks were carried out through national R&D projects, and the research budget was 94.4 billion won, with an average of 450 million won.
- Various studies have been conducted in relation to the utilization of satellite information, and it is judged that the major research fields and major research methods are going in the same direction as the global research trend. being
● GIS Paper Presentation Trend
- (Number of papers) The number of papers in Korea in the field of GIS using satellite information over the past 10 years (2012-2021) is 22. India ranks first with 178 papers, and Korea ranks 16th. More recently, the number of papers from 2017 to 2022 is 9, which corresponds to 24th.
- (Number of theses by institution) Putra, Malaysia had the most with 23, in Korea, Sejong University had 5, Kangwon National University had 3, and Chinese Academy of Sciences had the most with 49. appeared, and there were no Korean companies
- (Thesis level) The FWCI (relative number of citations) representing the level of thesis was 1.42, showing a moderate level. Russia had the highest score at 2.36, followed by Italy (1.89).
- (Number of authors) The Chinese Academy of Sciences had the highest number of GIS researchers using satellite information at 143. In Korea, Pukyong National University had the most with 8 students.
■ Policy Implications
● It is necessary to establish policies for satellite development, research level improvement, and research manpower expansion based on the utilization plan.
- (Strengthen linkage between projects) ‘satellite information utilization plan → satellite information utilization necessary technology development → satellite development → satellite information utilization’ planning→R&D→satellite development→service connection needs to be strengthened
- (Enhancement of research level) It is necessary to improve the level of research so that it can compete in the global market.
- (Expansion of research manpower) Compared to China, Malaysia, and India, there is a shortage of research manpower related to satellite information utilization, so a strategic approach is needed to nurture related industries and manpower.
● Strategies to enhance the utilization of satellite information are needed.
- (Quality control and assurance) Quality control and assurance measures must be in place to ensure the accuracy of satellite information.
- (Data opening and sharing) It is necessary to promote an open data policy and data sharing for the effective use of satellite information.
- (Standard development and provision of service platform) In order to integrate and utilize multi-source satellite information, it is necessary to build and provide an integrated service platform for standard development and activation of utilization.
