« on: 15/08/2021 09:13:35 »
Do you believe you utilized any of the earths conserved systems angular momentum with your sailing boat ?From the point of view of the paper I linked to the boat is part of the earth/atmosphere system.
Does convection alter the velocity of the atmosphere ?Velocity yes, but thatís not implying a change of total momentum. Remember what goes up comes down in atmospheric circulation.
If we fill a container with water and heat a bottom corner water will rise up one side and circulate in the container, if that container is suspended freely it will rotate in the opposite direction conserving the original 0 angular momentum. If the container is in contact with the earth the total momentum will remain 0 as it will transfer momentum to the earth, but I doubt the earth notices.
My own interest in the earth/atmosphere interface is only that the coefficient of friction varies over the earth surface which leads to wind shifts due to a combination of pressure systems, laminar flow and Coriolis effect. As you might guess Iím interested in predicting those effects locally.