Quasi-coincident observations of polar stratospheric clouds by ground-based lidar and CALIOP at Concordia (Dome C, Antarctica) from 2014 to 2018

Subtropical and Polar Cirrus Clouds Characterized by Ground-based Lidars and Calipso/caliop Observations

Cirrus clouds are product of weather processes, and then their occurrence and macrophysical/optical properties can vary significantly over different regions of the world. Lidars can provide height-resolved measurements with a relatively good both vertical and temporal resolutions, making them the most suitable instrumentation for high-cloud observations. The aim of this work is to show the pote...

Polar Stratospheric Clouds over 1 Antarctica from the CALIPSO

1 2 This paper presents statistics of Polar Stratospheric Clouds (PSCs) above Antarctica from 3 June to October 2006 using observations from the CALIOP spaceborne lidar, part of the 4 CALIPSO mission. Synoptic-scale changes in their geographic and temporal distribution 5 are documented on a weekly basis and correlated with temperature fields. A very high 6 spatial and temporal variability tends...

Lidar Measurements of Polar Stratospheric Clouds in the Arctic

A-train CALIOP and MLS observations of early winter Antarctic polar stratospheric clouds and nitric acid in 2008

A-train Cloud-Aerosol Lidar with Orthogonal Polarization (CALIOP) and Microwave Limb Sounder (MLS) observations are used to investigate the development of polar stratospheric clouds (PSCs) and the gas-phase nitric acid distribution in the early 2008 Antarctic winter. Observational evidence of gravity-wave activity is provided by Atmospheric Infrared Sounder (AIRS) radiances and infrared spectro...

Brightness and Extinction at Dome C , Antarctica

The recent discovery of exceptional seeing conditions at Dome C, Antarctica, raises the possibility of constructing an optical observatory there with unique capabilities. However, little is known from an astronomer's perspective about the optical sky brightness and extinction at Antarctic sites. We review the contributions to sky brightness at high-latitude sites, and calculate the amount of us...