Waterwalling

Waterwalling is a term used to describe a type of cloud seeding operation. Cloud seeding involves introducing substances like silver iodide into clouds to encourage precipitation. In waterwalling, these substances are dispersed in a linear pattern, creating what is perceived as a "wall" of enhanced cloud seeding. This linear deployment is intended to create a concentrated area of precipitation downwind of the seeded clouds.

The primary goal of waterwalling is to direct rainfall or snowfall to a specific area, such as agricultural land or a reservoir. Proponents suggest that this method can be more efficient than broadcast seeding in targeting precipitation. However, the effectiveness and widespread applicability of waterwalling are subjects of ongoing scientific research and debate.

The precise conditions required for successful waterwalling, such as specific cloud types, atmospheric temperatures, and wind patterns, are still being studied. While some studies indicate positive results in increasing precipitation in targeted zones, others have found the effects to be inconclusive or difficult to isolate from natural variations in weather. Critics often point to the lack of robust, large-scale, and independently verified evidence to support the claims of significant and predictable precipitation enhancement through waterwalling. Ethical considerations and environmental impacts of cloud seeding in general, including waterwalling, also remain topics of discussion within the scientific and public spheres.