What is primarily involved in the vertical shift communication to target location?

The primary focus of vertical shift communication to target location is to ensure that the adjustments made for elevation are precise, especially when dealing with munitions that require accurate targeting due to changes in terrain, altitude, or observer position.

When the difference is greater than 5 meters, it indicates a significant change in elevation that necessitates careful calculation and communication to achieve effective fire support. This threshold emphasizes the importance of accuracy in elevation adjustments for successful targeting, which is crucial in field operations where even slight miscalculations can lead to ineffective fire or collateral damage.

Considering other aspects, accuracy within 100 meters seems more related to horizontal positioning rather than specifically vertical shifts. Differences expressed in yards do not directly pertain to the elevation aspect, as the measurement units are immaterial without addressing how they influence target acquisition or fire adjustments. Lastly, elevation changes only would narrow the communication focus too much, ignoring the context of adjustments needed based on the observed data, which encompasses more than just elevation. Thus, pinpointing a difference greater than 5 meters captures the critical aspect of vertical communication effectively.