This subroutine calculates particle settling velocity. *
*
Author: A. Stohl *
*
May 2010 *
*
Improvement over traditional settling calculation in FLEXPART: *
generalize to higher Reynolds numbers and also take into account the *
temperature dependence of dynamic viscosity. *
*
Based on: *
Naeslund E., and Thaning, L. (1991): On the settling velocity in a *
nonstationary atmosphere, Aerosol Science and Technology 14, 247-256. *
*
Changes *
Daria Tatsii 2022: implementation of shape factor according to *
Bagheri & Bonadonna 2016 *
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Arguments
| Type |
Intent | Optional | Attributes |
|
Name |
|
|
real,
|
intent(in) |
|
|
:: |
xt |
|
|
real,
|
intent(in) |
|
|
:: |
yt |
|
|
real,
|
intent(in) |
|
|
:: |
zt |
|
|
integer,
|
intent(in) |
|
|
:: |
nsp |
|
|
real,
|
intent(out) |
|
|
:: |
settling |
|