Which type of data is available for public use and modification?

Open-source data refers to data that is made available to the public, allowing anyone to access, use, modify, and redistribute it without restrictions. This type of data fosters collaboration, innovation, and transparency, as it encourages users to build upon existing datasets for various applications.

In the context of geospatial data, open-source data is particularly valuable because it enables a wide range of users—ranging from researchers to businesses—to analyze and utilize geographic information freely. This promotes engagement within the community and can lead to advancements in fields such as urban planning, environmental monitoring, and public health, as anyone can contribute improvements or additional insights.

The other types of data mentioned are not publicly available for modification, thereby limiting their accessibility. Closed data is restricted and typically not shared outside specific organizations. Secured data is protected for privacy or security reasons and cannot be freely accessed. Shared data might be accessible in certain contexts but is not necessarily open for modification by the general public.