Results 101 to 110 of about 4,545 (231)
Cirrus parameterisation and the role of ice nuclei. [PDF]
, 2005 A parametrization of cirrus clouds formed by homogeneous nucleation is improved so that it can be used more easily in general-circulation models (GCMs) and climate models.
Ren, C., MacKenzie, Rob
core
Observing cirrus formation and decay with METEOSAT
, 2009 Cirrus clouds have a substantial impact on net radiation and therefore also on climate, but the physical processes involved in cirrus formation and decay are not very well represented in climate and weather prediction models. In-situ formation of natural
Graf, Kaspar +4 more
core
The role of organic aerosols in homogeneous ice formation
, 2004 Kärcher B, Koop T. The role of organic aerosols in homogeneous ice formation. ATMOSPHERIC CHEMISTRY AND PHYSICS. 2005;5(3):703-714.Recent field observations suggest that the fraction of organic-containing aerosol particles in ice cloud particles is ...
Kärcher, B +5 more
core +1 more source
Dissecting cirrus clouds: navigating effects of turbulence on homogeneous ice formation
npj Climate and Atmospheric ScienceTurbulent air motions determine the local environment in which cloud ice crystals form. Homogeneous freezing of aqueous solution droplets is the most fundamental pathway to nucleate ice crystals in cirrus.
Bernd Kärcher +12 more
doaj +1 more source
The two faces of cirrus clouds [PDF]
, 2010 Abstract. Low ice crystal concentration and sustained in-cloud supersaturation, commonly found in cloud observations at low temperature, challenge our understanding of cirrus formation. Heterogeneous freezing from effloresced ammonium sulfate, glassy aerosol, dust and black carbon are proposed to cause these phenomena; low updrafts however is required ...
D. Barahona, A. Nenes
openaire +1 more source
COCS - Cirrus Optical properties derived from CALIOP and SEVIRI during day and night time
, 2010 Significant progress in cirrus cloud observation has been achieved with spaceborne active remote sensing techniques, e.g. the Cloud-Aerosol Lidar with Orthogonal Polarization (CALIOP) aboard the polar-orbiting Cloud-Aerosol Lidar and Infrared Pathfinder ...
Mannstein, Hermann +3 more
core
ENVISAT tropical validation of cloud and ozone parameters by high-altitude aircraft. [PDF]
, 2007 The validation of cloud top and ozone vertical column, measured by SCIAMACHY, were carried out respectively by lidars and in-situ and remote-sensing ozone instruments on-board the high altitude Geophysica aircraft.
Kostadinov, I. +14 more
core
Tropical thin cirrus and relative humidity observed by the Atmospheric Infrared Sounder [PDF]
Atmospheric Chemistry and Physics, 2008 Global observations of cloud and humidity distributions in the upper troposphere within all geophysical conditions are critically important in order to monitor the present climate and to provide necessary data for validation of climate models to project ...
K. N. Liou +5 more
doaj
The cirrus coupled cloud-radiation experiment-II
, 2014 A cirrus study has been undertaken during the second Cirrus Cloud-Radiation Experiment field campaign based in Prestwick, Scotland. We report on a case study describing the radiation and microphysics measurements and cloud modelling work.
Harlow, Chawn +15 more
core +1 more source
, 2017 Cirrus cloud seeding may help to reduce climate warming, but large uncertainties ...
Ulrike Lohmann, Blaž Gasparini
core +1 more source