Student Research Reports

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This study investigates the relationship between atmospheric conditions and soil freezing depth in Southeast Michigan during the winter of 2024-2025. Conducted at two locations in Dearborn Heights, MI, the research aimed to compare frost tube data collected during a La Niña winter to data from the previous year’s El Niño winter. Using GLOBE protocols, air temperature was recorded nightly, and ground freezing depth was measured using the frost tube method. Results indicated an inverse correlation between air temperature and freezing depth—colder temperatures led to deeper ground freezing, while warmer temperatures resulted in shallower freezing. The study also compared Crestwood test site data with that of other GLOBE schools, particularly the University of Alaska Fairbanks. Findings revealed significant differences, likely due to variations in frost tube design, data collection methods, and geographic location. Additionally, factors such as soil composition and snow cover influenced freezing patterns. The study emphasizes the importance of continued frost depth monitoring, especially as climate patterns shift. Understanding its importance is crucial for assessing the impact of ground freezing on plant survival, insect populations, and infrastructure stability. Future research should focus on multi-season data collection, incorporating additional atmospheric variables, and refining measurement techniques to enhance accuracy and reliability.