Sky View, within the context of GIS and spatial analysis, refers to the computational assessment of how much open sky is visible from a given point on the Earth's surface, typically expressed as a ratio or percentage. This metric quantifies the proportion of the celestial hemisphere that remains unobstructed by surrounding terrain, vegetation, buildings, or other physical features. GIS technology enables analysts to derive Sky View calculations through advanced geospatial data processing, leveraging high-resolution digital elevation models (DEMs), LiDAR point clouds, and 3D urban datasets to simulate visible sky coverage across complex landscapes.

In practice, the Sky View Factor (SVF) is computed using viewshed algorithms and hemispherical projection techniques embedded within GIS platforms, producing spatially distributed outputs that can be mapped and analyzed at various scales. This geospatial metric carries significant value across multiple disciplines, including urban climatology, solar energy potential modeling, pedestrian comfort assessment, and smart city planning. By integrating Sky View analysis into broader spatial workflows, GIS professionals gain critical insights into how built and natural environments influence microclimates, daylight availability, and overall environmental quality.