Thermal stratification gets its vibe from layering temperatures, and these emojis nail that concept. Drop ๐ ๐๐ง to hint at chilly water layers at dawn or use ๐๐๐ฌ when talking about warm surface waters studied in science texts. The combo ๐ก๏ธ๐ง๐ captures the feeling of temperature gradients in vast bodies of water, perfect for academic posts or nature-themed threads.