Spectral dispersion of cloud droplet size distributions and the parameterization of cloud droplet effective radius
نویسندگان
چکیده
منابع مشابه
Parameterization of Cloud Droplet Effective Radius: Effects of Spectral Dispersion and Skewness of Cloud Droplet Size Distributions
Effective radius re (defined as the ratio of the third to the second moment of a droplet size distribution) is one of the crucial variables that determine the radiative properties of liquid water clouds (Hansen and Travis 1974). The inclusion and parameterization of re in climate models has proven to be critical for assessing global climate change (Slingo 1990; Dandin et al. 1997). There has be...
متن کاملDispersion of Cloud Droplet Size Distributions, Cloud Parameterizations and Indirect Aerosol Effects
Most studies of the effect of aerosols on cloud radiative properties have considered only changes in the cloud droplet concentration, neglecting changes in the spectral shape of the cloud droplet size distribution. However, it has been shown that that the spectral dispersion of the cloud droplet size distribution (defined as the ratio of the standard deviation to the mean radius of the droplet ...
متن کاملEffects of Spectral Dispersion of Cloud Droplet Size Distributions on Radiative Properties of Clouds and Dispersion Forcing
where L is the liquid water content, and ρw is the density of water. In effect, these studies implicitly assume the only effect of aerosols on cloud microphysical properties is to increase N, and re can be parameterized by Eq. (1) for monodisperse droplet size distributions. Eq. (1) has also been used in the parameterization of re. However, available data suggests the spectral shape of the clou...
متن کاملParameterization of cloud droplet size distributions: Comparison with parcel models and observations
[1] This work examines the efficacy of various physically based approaches derived from one-dimensional adiabatic parcel model frameworks (a numerical model and a simplified parameterization) to parameterize the cloud droplet distribution characteristics for computing cloud effective radius and autoconversion rate in regional/global atmospheric models. Evaluations are carried out for integratio...
متن کاملParameterization of cloud droplet size distributions : 1 comparison with parcel models and observations
This work examines the efficacy of various physically-based 3 approaches derived from 1-D adiabatic parcel model frameworks (a numer-4 ical model and a simplified parameterization) to parameterize the cloud droplet 5 distribution characteristics for computing cloud effective radius and auto-conversion rate in regional/global atmospheric models. Evaluations are car-7 ried out for integrations wi...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Geophysical Research Letters
سال: 2000
ISSN: 0094-8276
DOI: 10.1029/1999gl011011