Comparisons of cloud statistics from spaceborne lidar systems
نویسندگان
چکیده
Comparison of cloud statistics from spaceborne lidar systems S. Berthier, P. Chazette, J. Pelon, and B. Baum Service d’Aéronomie du CNRS, Institut Pierre-Simon-Laplace, Université Pierre-et-Marie-Curie, 4, Place Jussieu – 75252 Paris Cedex 05, France Laboratoire des Sciences du Climat et de l’Environnement, Laboratoire mixte CEA-CNRS, F-91191 Gif-sur-Yvette, France Space Science and Engineering Center, 122 W Dayton Street, Madison, WI 53706, USA now at: Space Sci. and Eng. Center, 1225 W. Dayton Street, Madison, WI 53706, USA Received: 19 November 2007 – Accepted: 13 February 2008 – Published: 12 March 2008 Correspondence to: S. Berthier ([email protected])
منابع مشابه
Comparison of cloud statistics from spaceborne lidar systems
The distribution of clouds in a vertical column is assessed on the global scale through analysis of lidar measurements obtained from three spaceborne lidar systems: LITE (Lidar In-space Technology Experiment, NASA), GLAS (Geoscience Laser Altimeter System, NASA), and CALIOP (Cloud-Aerosol LIdar with Orthogonal Polarization). Cloud top height (CTH) is obtained from the LITE profiles based on a s...
متن کاملInteractive comment on “Comparison of cloud statistics from spaceborne lidar systems” by S. Berthier et al
Answer of the Author : A large bibliography yet exists on the lidar measurements and instruments. A fully description of the LITE, GLAS and CALIOP lidar instruments can be found in each of the reference furnished in the article. You can see for the LITE instrument (Winker et al., 1996), for the GLAS instrument (Palm et al., 1998), and to finish for the CALIOP instrument (Winker et al., 2002) )....
متن کاملCALIPSO observations of near-cloud aerosol properties as a function of cloud fraction
This paper uses spaceborne lidar data to study how near-cloud aerosol statistics of attenuated backscatter depend on cloud fraction. The results for a large region around the Azores show that (1) far-from-cloud aerosol statistics are dominated by samples from scenes with lower cloud fractions, while near-cloud aerosol statistics are dominated by samples from scenes with higher cloud fractions; ...
متن کاملConditional Random Fields for Airborne Lidar Point Cloud Classification in Urban Area
Over the past decades, urban growth has been known as a worldwide phenomenon that includes widening process and expanding pattern. While the cities are changing rapidly, their quantitative analysis as well as decision making in urban planning can benefit from two-dimensional (2D) and three-dimensional (3D) digital models. The recent developments in imaging and non-imaging sensor technologies, s...
متن کاملAirborne and Spaceborne Lidar
The evolution of lidar, from those early ground-based measurements to our first long-duration spaceborne experiments, is schematically represented in Fig. 13.1. It depicts the first lidars in the 1960s as ground-based, followed by systems first flown in 1969 on small aircraft, and followed in the late 1970s by lidars flown on large aircraft capable of long-range measurements. Starting in 1979, ...
متن کامل