An observational campaign is a structured effort to gather data and information through direct observation of a particular phenomenon or event. This can involve setting up monitoring stations, deploying instruments, or sending out observers to collect data on the ground. The goal of an observational campaign is typically to better understand a specific aspect of the natural world, such as weather patterns, wildlife behavior, or the effects of a certain environmental change. These campaigns are often organized by research institutions, government agencies, or non-profit organizations to address pressing scientific questions. The data collected during an observational campaign can be used to inform policy decisions, improve models, or contribute to scientific knowledge.