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PolyU Osaka Study Tour 2025

From 4 to 10 January 2025, a group of 24 LSGI students, led by Prof. Wallace Lai, Prof. Qing Pei, Miss Stella Tse from Department of Land Surveying and Geo-Informatics (LSGI) visited Osaka and Kyoto for a 7-day study tour supported by the university. The aim of this tour was to explore the elements of spatial data science and smart cities.    At the Osaka City Abeno Disaster Prevention Center, students engaged in practical exercises that illustrated the importance of disaster preparedness. They learned why cars should not be used during a tsunami, experienced how an Earthquake shakes the Earth in a simulator, and practiced how to 'crawl' properly amid heavy smoke. Prof. Pei-liang Xu from the Disaster Prevention Institute at Kyoto University provided valuable insights into Japan's earthquake warning system, which utilizes a sophisticated network of spatial data science and technologies, including GNSS, GIS, remote sensing, geodesy, and seismology. He emphasized the philosophical dimension of disaster research, urging students to critically question scientific claims with the challenge: "Don't trust what 'Science' or 'Nature' tells you. If you care, question it and prove it yourself." The exploration of "Disaster" extended to its man-made dimensions through discussions led by Prof. Keiji Yano, Institute of Disaster Mitigation for Urban Cultural Heritage from Ritsumeikan University, who introduced his 20 years of effort on 'Virtual Kyoto'. It aims to preserve the rich Kyoto's cultural heritage from various disasters via technologies like GIS, cartography, aerial photogrammetry, laser scanning, and AI. This initiative highlights the power of a map, which is not just a large piece of paper, but a vivid story-telling vehicle recording our past and present leading us to the future. In a world where heritage is endangered, mitigation and preservation of heritage from disaster are a serious matter of humanity and should be made known to everyone. The students were stunned at how the techs they have been learning in LSGI are so closely related to humanities and heritage conservation, traditionally perceived as separate domains.    The tour also included a visit to the Kyoto Museum for World Peace led by Prof. Keiji Yano. It is a solemn place where facets of war should be presented in a multitude of ways aimed at avoiding it. Ms. Miki Taguwa, the curator of the museum, kindly guided the students through the various peace-making exhibits.  With the assistance of Dr. Pei Qing's excellent Japanese translation, Prof. Wallace Lai was able to explain the discovery of WWII fortification and field positions in his 'Geo-project 1941' originated from the Battle of Hong Kong.    This study tour not only broadened our students' understanding of disaster mitigation but also illuminated the profound interconnectedness of science, technology, and the humanities in addressing the challenges faced by society. 

PolyU Tokyo Study Tour 2025

A group of 21 students from the Department of Land Surveying and Geo-Informatics (LSGI) at the Hong Kong Polytechnic University (PolyU), led by Prof. Wu Chen, Head of Department, Dr. Sissi Chen, Lecturer, and Ms. Serein Han, Scientific Officer from LSGI, participated in a study tour in Tokyo from 4 to 10, January 2025. The National Museum of Nature and Science gave a great look at the natural world and science. The exhibits on biodiversity and the history of life on Earth were very interesting. They reminded us of the balance that keeps our planet going. Visiting Metropolitan Area Outer Underground Discharge Channel is one of the tour's highlight, known as the "Underground Temple". This critical flood management infrastructure demonstrated the extensive efforts required to protect urban areas from natural disasters through big tunnels. Prof. Wu Chen, posed thought-provoking questions regarding the channel's maintenance and operational methods: "What is the cleaning method and period?" "Why was this channel built hermetically?", and "How often will inspections be done?" These questions deepen the understanding of such a monumental engineering project. This visit showed the critical role of innovative engineering in creating urban environments, highlighting how such advancements are essential for the sustainable development of strong cities.  The Tokyo Sewerage Museum ‘Rainbow’ gave a good look at the systems that support city life. Learning about wastewater treatment and sewerage management showed us the complex processes that are important for public health and the environment. This visit made us think more about how our daily habits affect these systems and the environment. At the Miraikan, we was inspired by how technology can shape our future. The exhibits on robotics, space exploration, aging in Japan and artificial intelligence were interesting and made us think about the ethical side of technological advancements. This visit made us think about how we can use innovation to solve global problems and make sure everyone benefits. The Narusawa Mt. Fuji Museum gave a different view, focusing on the natural beauty and geological importance of Mt. Fuji. The exhibits on volcanic activity and the cultural importance of Mt. Fuji made us appreciate this landmark more.  The tour provided a profound exploration of the intersections of nature, technology, and culture. Participants expressed their gratitude for the opportunity to engage with these remarkable sites and enthusiasm for applying their newly acquired insights to foster personal growth and a broader understanding of the world. 

MOU signing between PolyU LSGI and AMap

On 16 December 2024, a delegation from AMap (高德地图) visited the Department of Land Surveying and Geo-Informatics (LSGI) at The Hong Kong Polytechnic University (PolyU) for a significant signing ceremony. This event marked the formalisation of a Memorandum of Understanding (MoU) between the two parties, aimed at fostering collaboration in research development and technology transfer within the Greater Bay Area (GBA). The delegation from AMap was warmly welcomed by Professor Chen Wu, Head of LSGI, along with Dr Xu Yang, Associate Professor, and other esteemed academic staff members. The MoU outlines a strategic partnership focusing on areas such as smart mobility, tourism, and urban infrastructure planning. Both parties are enthusiastic about exploring opportunities for education and student training within the geospatial industry, further strengthening ties between academia and industry. The signing of the MoU signifies the beginning of a long-term collaboration between LSGI and AMap, bringing together pioneers in geospatial technologies and smart city development.   Participating Guests from AMap: •           Mr Deng Yu, Head of User Growth & Data •           Mr Yang Hao, Head of International Maps •           Ms Zhang Sha, User & Data Operations Supervisor •           Mr Ren Yue, Product Manager •           Ms Liang Shuang, Business Manager •           Mr He Gengen, Map Consultant   Representatives from PolyU: •           Professor Chen Wu, Head of LSGI •           Dr Xu Yang, Associate Professor •           Dr Liu Xintao, Associate Professor •           Dr Zhuge Chengxiang, Assistant Professor   This collaboration promises to advance the frontiers of geospatial research and smart city solutions, benefiting both the academic community and the industry at large.

PolyU Tsinghua Study Tour 2024

From 5 to 11 December 2024, a group of 13 students from the Department of Land Surveying and Geo-Informatics (LSGI) and the Department of Chinese History and Culture (CHC) at the Polytechnic University of Hong Kong (PolyU) embarked on an enriching study tour to Beijing, China. This trip was conducted under the project "粵港澳大灣區戰略背景下京港應對氣候變化的政策機制比較與分析," led by Dr Pei Qing, Associate Professor from PolyU, and Prof. Wang Can from Tsinghua University. The project is sponsored by the “Ten Thousand People's Scheme” by the Ministry of Education of PR China. This year marks the fourth time the programme has run since its inception in 2017. During the tour, our students had the opportunity to visit Tsinghua University and engage in academic exchanges with esteemed professors.   During the opening ceremony on Dec 06, Professor Wang presented a lecture to comprehensively introduce the key concepts, theories and methodologies under the current “Carbon Peak and Carbon Neutrality: Background and Pathway” in China, which could be summarized as “Dual Carbon” goal. After the presentation by Professor Wang, the students had a warm discussion and interaction according to the lecture content.   On Dec 09, Mr Zhang Binliang (张斌亮), the General Manager of SinoCarbon Innovation & Investment Co., Ltd, was invited to give a sharing on “Opportunities and Challenges for the Development of the Global Carbon Trading Market in the Context of Carbon Neutrality.” His insights helped students gain a deeper understanding of carbon trading as a crucial strategy for achieving carbon neutrality. Additionally, students participated in practical carbon market trading sessions.    On Dec 10, the students joined the course entitled “Climate Change Economics” by Professor Wenjia Cai in Tsinghua University. During the course, the students learnt the latest progress of climate negotiation and climate politics.   Beyond academic exchanges, the students explored the rich history and culture of mainland China. They visited several iconic sites, including the Tsinghua University Art Museum, the Palace Museum, and the Badaling Great Wall. This study tour offered the students a valuable and comprehensive learning experience.   On Dec 11, the closing ceremony of the project was held at the School of Environment, Tsinghua University. Each student shared their experiences, combining their academic specialisations with the insights gained during the week. After this trip, they not only gained a deeper and more concrete understanding of "Dual Carbon" goal and climate change, but also became acutely aware that the climate crisis is upon us. They are committed to continuing their focus on global environmental issues and hope to start by applying their knowledge to promote environmental awareness and contribute to efforts in combating climate change.    We extend our heartfelt gratitude to Professor Wang, staff and students of Tsinghua University for their warm hospitality. This study tour has equipped PolyU students with the knowledge and experiences necessary to make meaningful contributions to the fields of climate change and sustainability in their future academic and professional pursuits.

AsiaCarto 2024: A Landmark Event in Cartographic Research

The inaugural Asian Cartographic Conference, AsiaCarto 2024, co-hosted by the International Cartographic Association (ICA) and The Hong Kong Polytechnic University (PolyU), concluded with resounding success on December 9-10. The Department of Land Surveying and Geo-Informatics (LSGI) was proud to be one of the sponsors of this groundbreaking event, which took place at PolyU. The conference attracted over 200 map enthusiasts and experts from more than 30 countries and regions, highlighting the global interest in cartographic studies. With nearly 300 paper submissions and over 120 engaging presentations, participants delved into the latest advancements in map studies and explored the future of the field. Prof. Jin-Guang Teng, President of PolyU, warmly welcomed all participants and guests on behalf of the organizers. The presence of the distinguished guests was one of the highlights of the conference: Ms. Bernadette Linn, JP, Secretary for Development, Development Bureau, and ICA President Prof. Georg Gartner. Their participation underscored the conference's significance and its impact on the global stage. Ms. Linn's involvement emphasized the importance of cartography in regional development and urban planning, while Prof. Gartner's presence reinforced the conference's alignment with international standards and innovations in cartographic research. During the closing ceremony, several prestigious awards were presented, including 19 ICA Scholarship Awards, 15 AsiaCarto Best Student Presentation Awards, and 3 AsiaCarto Travel Awards. These accolades celebrated outstanding contributions and promising research in the field of cartography. LSGI was thrilled to witness the dynamic discussions and fruitful exchanges that took place, underscoring the strength of Asian cartographic research and fostering international academic collaborations. The conference provided a vital platform for professionals and those in related disciplines to engage in discussions, exchange ideas, and stimulate research and joint projects in Cartography and GIScience. The conference showcased the critical role of cartography in shaping future landscapes and fostering global cooperation. LSGI looks forward to continuing its support for initiatives that advance the field of cartography and promote international collaboration.

PolyU LSGI STEAM Talks for Secondary Schools Students 2025

The Department of Land Surveying and Geo-Informatics (LSGI) is organizing a STEAM Talk Series with the aim of introducing daily life applications and potential developments in Geo-Informatics. The series will cover a wide range of topics, including Land Surveying, Remote Sensing, Global Positioning System (GPS), Global Navigation Satellite System (GNSS), Geographic Information Science (GIS), and Underground Utilities Imaging and Diagnosis. We are delighted to invite all secondary schools to participate in our STEAM Talk Series in 2025. STEAM Talk Series Topics: Smart City and 3D Mapping in HK (智慧城巿及三維地圖的應用) Global Navigation Satellite System (GNSS) and Smart City Applications (全球導航衛星系統與智慧城市應用) Unfolding HK Lost WWII Heritage with Geo-spatial Science (尋找隱世二戰遺跡：地理空間科學篇) Problem Solving by Digital Maps and Geographic Information System (GIS) (以數字地圖和地理訊息系統解難) Seeing and Unseen Underground Utilities in 3D (三維地下管線測量) Observing and Measuring the Earth from Space (從太空觀測地球) IoT and Remote Sensing for Tree Monitoring (如何利用IoT及遙感技術監測城市樹木) Date:   From January to July 2025 (exact date to be suggested by school) Target audience:   S.1 – S.6 Students (both Art and Science students are welcome) Medium:   Cantonese or English Venue:   Secondary School or PolyU (a lab tour to be arranged at PolyU) Speaker:   Academic Staff from the Department of LSGI Please click here to know more the description for the STEAM talk topics. Interested parties please fill in the online application form to indicate your preference of talk. For any questions, please feel free to contact Mr Jimmy Kwan at 2766 4350 or jimmy.lh.kwan@polyu.edu.hk. Please find more about LSGI at our Facebook or Youtube channel.  LSGI Undergraduate Programme in 2025/26 BSc (Hons) Scheme in Spatial Data Science and Smart Cities (JS3130)

LSGI Students Shine at RICS Hong Kong 2024 Student Awards Ceremony

On December 4, 2024, the RICS Hong Kong Student Awards Ceremony celebrated the outstanding achievements of students in the field of surveying and geospatial sciences. Among the honorees were three exceptional students from the Department of Land Surveying and Geo-Informatics (LSGI) who received prestigious awards for their academic excellence and contributions to the field. YIN Ruoxin, LSGI Bachelor programme student, along with ZHANG Ouwen and CHEUNG Cho Kwan from the Master of Science of Geomatics programme, were awarded for their exemplary work and dedication. Prof. Joseph Awange, new Professor of LSGI who also attended to support and celebrate the accomplishments of the students. Prof. Awange expressed his pride in the students' achievements and emphasized the importance of their contributions to the industry in future. The recognition of YIN Ruoxin, ZHANG Ouwen, and CHEUNG Cho Kwan reflects the department's dedication to fostering talented individuals who are ready to positively impact their chosen fields. Congratulations to YIN Ruoxin, ZHANG Ouwen, and CHEUNG Cho Kwan on their well-deserved awards.

LSGI Scholar Invited to Represent Hong Kong and Present Hong Kong (China)’s Region/Country Report at the 2024 ASAIHL Conference

At the 2024 ASAIHL Conference (Association of Southeast Asian Institutions of Higher Learning), held at Universitas Airlangga in Surabaya, Indonesia, from 19-22 November 2024, LSGI Scholar Prof. George Zhizhao Liu was invited to represent Hong Kong and present the Region/Country Report for Hong Kong (China). This year's ASAIHL conference focused on the theme “University’s Role in Advancing Climate Crises Reduction.” At the conference, Prof. Liu delivered an invited talk titled “AI and Satellite Remote Sensing: The State-of-the-Art Technology to Map the Most Abundant Atmospheric Greenhouse Gas – Water Vapor.” His presentation highlighted the critical role of accurate water vapor observation in climate change and extreme weather studies and showcased the research conducted in his Micro-Laboratory of Atmospheric Research and Geomatics Engineering (Micro-LARGE) in the field of climate change. Water vapor, as the most abundant greenhouse gas in the atmosphere, plays a critically important role in climate change and extreme weather events. This challenges the common perception that carbon dioxide (CO2) is the largest greenhouse gas. Water vapor accounts for approximately 50% of atmospheric greenhouse gases, depending on weather conditions. However, accurately observing water vapor remains a global technical challenge. Numerous satellites have been launched with the capability to observe water vapor across different wavelength channels. Unfortunately, the accuracy of water vapor data from most of these satellite sensors is low and does not meet the requirements for climate change and extreme weather studies. Prof. Liu’s Micro-LARGE Lab has insightfully identified this issue and developed various AI-based algorithms to significantly enhance the accuracy of water vapor observations from different satellite sensors. The Association of Southeast Asian Institutions of Higher Learning (ASAIHL), founded in Bangkok, Thailand, in 1956, is a non-governmental organization that began with eight state universities in Southeast Asia. It now includes university members from Europe, North America, Africa, and Oceania. ASAIHL aims to assist member institutions in strengthening themselves through mutual support and achieving international distinction in teaching, research, and public service. Additionally, Prof. Liu recently delivered a specially invited presentation at the 6th National Mesoscale Meteorology Conference, hosted by Sun Yat-sen University (Zhuhai) in Zhuhai, Mainland China, from 7-10 November 2024.

“Deep Space Exploration: Technology and Science” at the PolyU AIR Summit 2024

On 19 November 2024, "Aerospace Innovation Research Summit (AIR Summit)" was held at the Hong Kong Polytechnic University. The morning session from was held at Jockey Club Auditorium, PolyU. The event was co-organized by below units and departments:  RIO, Research and Innovation Office KTEO, Knowledge Transfer and Entrepreneurship Office PReCIT, Policy Research Centre for Innovation and Technology AAE, Department of Aeronautical and Aviation Engineering RCDSE, Research Centre for Deep Space Explorations LSGI, Department of Land Surveying and Geo-informatics OASA, The Orion Astropreneur Space Academy  A parallel session was held by the Department of Land Surveying and Geo-Informatics (LSGI) and the Research Centre for Deep Space Explorations (RCDSE) at the afternoon, themed “Deep Space Exploration: Technology and Science.” This event brought together leading experts from both governmental and private sectors to delve into cutting-edge technologies and advancements in the field of space exploration. Professor Wu Chen, Head of the Department of LSGI, delivered an insightful presentation on “Resilient Ubiquitous Positioning: Prospects and Challenges.” Additionally, Professor Wu Bo, Associate Head of LSGI and Associate Director of RCDSE, presented research on advanced 3D mapping techniques for landing site analysis and precise landing. The session also featured distinguished keynote speakers, including: Prof. Li Yiliang, Professor of Astrobiology, Department of Earth Sciences, The University of Hong Kong Dr. Yuri Skorov, Scientist, Planetary Science Department Max Planck Institute for Solar System Research Mr. Zhang Xiaomin, Chairman & General Manager, Beijing AZSPACE Technology Company Limited Mr. Kenny Chan, Senior Land Surveyor/Geodetic, Lands Department, The Government of the HKSAR Dr. Chen Ruizhi, Professor, School of Data Sciences, Chinese University of Hong Kong, Shenzhen Dr. Yusra Abdulrahman,  Assistant Professor, Department of Aerospace Engineering, Lab Lead, Transformative Aerospace Lab, Khalifa University  Ms. Li Yining, Senior Executive, General Management Department, Satellite Data and Application International Cooperation Center, China National Space Administration (CNSA) This session provided a platform for collaborative dialogue and knowledge exchange among experts at the forefront of space exploration technology and science. AIR Submit  

Workshop on Smart City and 3D Mapping in HK at Geospatial Lab

On 16 November 2024, the Geospatial Lab hosted a workshop titled "Smart City and 3D Mapping in Hong Kong" at the Geospatial Lab. We sincerely thank all participants for their enthusiastic engagement and support.   Dr. Sissi Chen, Lecturer of LSGI, was invited to be the guest speaker for the talk. Dr. Chen presented various perspectives on how spatial data can be leveraged to optimize resource allocation, alleviate traffic congestion, and enhance public safety, ultimately improving the quality of life in urban environments. We hope all participants can understand the significance of spatial data and also acquired insights on how to apply it to real-world problems after attending the workshop.   Click here to read more.