Deposition Velocity
Posted: July 29th, 2019, 7:51 am
Dear all,
I would just like to confirm somethings on dry deposition.
Question 1: Is the parameter (deposition velocity) in HYSPLIT actually settling velocity in dry deposition due to gravity?
Question 2: Is deposition velocity applied to all particles at any time for dry deposition during simulations, regardless of model layers?
If so, the particles in the higher model layer will slowly settle toward the ground. Once the particles are close to the ground layer, the dry deposition occurs. HYSPLIT will calculate dry deposition (the flux: mass/m^2/s) using deposition velocity (m/s) and the air concentration (mass/m^3) above the ground layer?
I am very sorry that I have little knowledge in physics. I am not sure if I understand it correctly.
Your help would be much appreciated. Thanks.
Kind Regards,
Ming
I would just like to confirm somethings on dry deposition.
Question 1: Is the parameter (deposition velocity) in HYSPLIT actually settling velocity in dry deposition due to gravity?
Question 2: Is deposition velocity applied to all particles at any time for dry deposition during simulations, regardless of model layers?
If so, the particles in the higher model layer will slowly settle toward the ground. Once the particles are close to the ground layer, the dry deposition occurs. HYSPLIT will calculate dry deposition (the flux: mass/m^2/s) using deposition velocity (m/s) and the air concentration (mass/m^3) above the ground layer?
I am very sorry that I have little knowledge in physics. I am not sure if I understand it correctly.
Your help would be much appreciated. Thanks.
Kind Regards,
Ming