In recent years, Japan has experienced an increasing number of severe natural disasters, highlighting the need for rapid acquisition and dissemination of disaster-related information. The photogrammetry industry plays a critical role by providing various types of data, including oblique imagery, orthophotos, airborne LiDAR data, and microtopographic visualization maps. These datasets are essential for understanding damage conditions and supporting recovery planning. However, despite their importance, secondary use of such data remains limited due to licensing restrictions and challenges in data distribution.
This paper examines the current status of open access to photogrammetric data collected during disasters, focusing on case studies from the Geospatial Information Center. It also identifies key issues related to licensing, data delivery, operational decision-making, and sustainability, and discusses future directions for improving data sharing frameworks to enable timely and effective utilization.
