The Defense Threat Reduction Agency (DTRA) is seeking innovative solutions through the Small Business Innovation Research (SBIR) program to develop a Nuclear Plume Advisory Algorithm. The objective is to create methods for detecting nuclear plumes from atmospheric explosions and deriving critical plume characteristics such as height, extent, and radiation hazard using multisource satellite observations. This initiative is vital for enabling military operations in a nuclear environment by providing timely warnings to avoid areas affected by residual radiation. The solicitation is currently closed, with the application due date set for October 23, 2024. Interested parties can find more information and resources at the DOD SBIR website.