What is Residual Nitrogen Time?
The world of scuba diving is one that demands attention to detail, respect for the natural world, and an understanding of physics and physiology principles. One crucial concept in this respect is that of “Residual Nitrogen Time” (RNT), an integral part of dive planning that influences dive safety, duration, and depth. This concept revolves around the body’s nitrogen absorption and release processes, directly tied to decompression sickness prevention.
What is Actual Bottom Time (ABT)?
actual bottom time refers to the total amount of time that elapses from the moment a diver begins their descent until they initiate their ascent. During this period, the diver is submerged underwater, exploring marine life, inspecting underwater structures, or conducting scientific research. The calculation of actual bottom time is a critical aspect of dive planning and dive safety, as it has implications for decompression requirements, air supply management, and physiological considerations.