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New Panoramic View of $^{12}$CO and 1.1 mm Continuum Emission in the Orion A Giant Molecular Cloud. I. Survey Overview and Possible External Triggers of Star Formation
star formation
2014/12/22
We present new, wide, and deep images in the 1.1 mm continuum and the CO ( 1–0) emission toward the northern part of the Orion A Giant Molecular Cloud (Orion-A GMC). The 1.1 mm data were taken with th...
We report a study of the relation between dust and gas over a 100 deg2 area in the Taurus molecular cloud. We compare the H2 column density derived from dust extinction with the CO column density deri...
An investigation into the performance of four cloud droplet activation parameterisations
An investigation into the performance four cloud droplet activation parameterisations
2014/12/19
Cloud droplet number concentration prediction is central to large-scale weather and climate modelling. The benchmark cloud parcel model calculation of aerosol particle growth and activation, by diffus...
A flexible three-dimensional stratocumulus, cumulus and cirrus cloud generator (3DCLOUD) based on drastically simplified atmospheric equations and the Fourier transform framework
A flexible three-dimensional stratocumulus cumulus cirrus cloud generator drastically simplified atmospheric equations Fourier transform framework
2014/12/19
The 3DCLOUD algorithm for generating stochastic three-dimensional (3-D) cloud fields is described in this paper. The generated outputs are 3-D optical depth (τ) for stratocumulus and cumulus fields an...
Development of two-moment cloud microphysics for liquid and ice within the NASA Goddard Earth Observing System Model (GEOS-5)
two-moment cloud microphysics liquid and ice within NASA Goddard Earth Observing System Model
2014/12/19
This work presents the development of a two-moment cloud microphysics scheme within version 5 of the NASA Goddard Earth Observing System (GEOS-5). The scheme includes the implementation of a comprehen...
Development of a new semi-empirical parameterization for below-cloud scavenging of size-resolved aerosol particles by both rain and snow
new semi-empirical parameterization rain
2014/12/18
t. A parameter called the scavenging coefficient 3
is widely used in aerosol chemical transport models (CTMs)
to describe below-cloud scavenging of aerosol particles by
rain and snow. However...
Performance of McRAS-AC in the GEOS-5 AGCM: aerosol-cloud-microphysics, precipitation, cloud radiative effects, and circulation
McRAS-AC GEOS-5 AGCM aerosol-cloud-microphysics precipitation cloud radiative effects circulation
2014/12/17
A revised version of the Microphysics of clouds with Relaxed Arakawa-Schubert and Aerosol-Cloud interaction scheme (McRAS-AC) including, among others, a new ice nucleation parameterization, is impleme...
Evaluating a lightning parameterization based on cloud-top height for mesoscale numerical model simulations
lightning parameterization cloud-top height mesoscale numerical model simulations
2014/12/16
The Price and Rind lightning parameterization based on cloud-top height is a commonly used method for predicting flash rate in global chemistry models. As mesoscale simulations begin to implement flas...
A cloud chemistry module for the 3-D cloud-resolving mesoscale model Meso-NH with application to idealized cases
cloud chemistry module 3-D cloud-resolving mesoscale model
2014/12/12
A complete chemical module has been developed
for use in the Meso-NH three-dimensional cloud resolving mesoscale model. This module includes gaseousand
aqueous-phase chemical reactions that are anal...
A refined statistical cloud closure using double-Gaussian probability density functions
refined statistical cloud closure double-Gaussian probability density functions
2014/12/12
We introduce a probability density function (PDF)-based scheme to parameterize cloud fraction, average liquid water and liquid water flux in large-scale models, that is developed from and tested again...
Multi-sensor cloud retrieval simulator and remote sensing from model parameters – Part 1: Synthetic sensor radiance formulation
Multi-sensor cloud retrieval simulator remote sensing
2014/12/12
In this paper we describe a general procedure for
calculating synthetic sensor radiances from variable output
from a global atmospheric forecast model.
Correction of approximation errors with Random Forests applied to modelling of cloud droplet formation
approximation errors Random Forests
2014/12/12
n atmospheric models, due to their computational
time or resource limitations, physical processes have to be
simulated using reduced (i.e. simplified) models.
GEWEX Cloud System Study (GCSS) cirrus cloud working group: development of an observation-based case study for model evaluation
GEWEX Cloud System Study cirrus cloud working group observation-based case study model evaluation
2014/12/10
The GCSS working group on cirrus focuses on an inter-comparison of model simulations ranging from very detailed microphysical and dynamical models through to general circulation models (GCMs). The pas...
Anatomy of the Gem OB1 molecular cloud complex
Gem Molecular cloud Molecular gas Form Star formation
2014/12/9
I have conducted an extensive study of the Gem OB1 molecular cloud complex in order to determine the global morphology of the molecular gas and how the morphology is correlated with the distribution o...
A simplified treatment of surfactant effects on cloud drop activation
A simplified treatment surfactant effects cloud drop activation
2014/12/9
Dissolved surface active species, or surfactants, have a tendency to partition to solution surface and thereby decrease solution surface tension. Activating cloud droplets have large surface-to-volume...