The force of gravity exists everywhere in the universe, including within the Earth's atmosphere. Gravity is what keeps the atmosphere bound to the Earth's surface and prevents it from drifting off into space. The force of gravity is responsible for holding the atmosphere close to the planet and giving it weight.
The strength of the gravitational force within the atmosphere decreases with increasing altitude. This is because gravity follows an inverse square law, which means that the force weakens as the distance between objects increases. As you move higher above the Earth's surface, the gravitational force becomes slightly weaker, although it remains significant throughout the atmosphere.
The precise value of the gravitational force in the atmosphere depends on the mass of the Earth and the distance from the Earth's center. On average, the acceleration due to gravity at the Earth's surface is about 9.8 meters per second squared (m/s²). However, this value can vary slightly depending on factors such as latitude, altitude, and local geological conditions.
It's worth noting that while gravity is present in the atmosphere, other forces such as air pressure and air currents also play significant roles in shaping atmospheric dynamics and phenomena.