An operational perspective on measuring aerosol cloud dynamics

Area of Science:

• Agricultural Engineering
• Environmental Science
• Aerospace Engineering

Background:

• Accurate determination of effective swath width is crucial for efficient and targeted aerial pesticide application.
• Field testing for aerial spray systems can be resource-intensive and time-consuming.
• Developing advanced systems like ASPEX can improve the precision and efficiency of aerial spraying operations.

Purpose of the Study:

• To evaluate the effective swath width of ultra-low volume (ULV) aerial applications using the C-130 Modular Aerial Spray System (MASS).
• To assess the utility of aerial spray computer models in predicting spray offset distances as an alternative to field testing.
• To demonstrate the capabilities of the ASPEX (Aerial Spray EXpert) system developed by the U.S. Air Force Reserve Aerial Spray Branch.

Main Methods:

• Conducted U.S. Air Force Reserve/USDA bioassays to measure swath width.
• Utilized aerial spray computer models to predict spray offset.
• Demonstrated the functionality of the ASPEX expert system.

Main Results:

• Established effective swath width parameters for ULV aerial applications with the C-130 MASS.
• Showcased the potential of computer models to substitute for certain aspects of field testing.
• Highlighted the developing capabilities of the ASPEX system for aerial spray management.

Conclusions:

• Bioassays provide critical data for optimizing aerial spray swath width.
• Computer modeling offers a viable complement or alternative to field testing for spray offset prediction.
• Expert systems like ASPEX represent a future direction for enhancing aerial spray operations.