Independent measurement of extinction and backscatter profiles in cirrus clouds by using a combined Raman elastic-backscatter lidar Export

@article{citeulike:4236695, abstract = {Height profiles of the extinction and the backscatter coefficients in cirrus clouds are determined independently from elastic- and inelastic- (Raman) backscatter signals. An extended error analysis is given. Examples covering the measured range of extinction-to-backscatter ratios (lidar ratios) in ice clouds are presented. Lidar ratios between 5 and 15 sr are usually found. A strong variation between 2 and 20 sr can be observed within one cloud profile. Particle extinction coefficients determined from inelastic-backscatter signals and from elastic-backscatter signals by using the Klett method are compared. The Klett solution of the extinction profile can be highly erroneous if the lidar ratio varies along the measuring range. On the other hand, simple backscatter lidars can provide reliable information about the cloud optical depth and the mean cloud lidar ratio.}, author = {Ansmann, Albert and Wandinger, Ulla and Riebesell, Maren and Weitkamp, Claus and Michaelis, Walfried}, citeulike-article-id = {4236695}, citeulike-linkout-0 = {http://dx.doi.org/10.1364/AO.31.007113}, citeulike-linkout-1 = {http://www.opticsinfobase.org/abstract.cfm?id=39843}, day = {20}, doi = {10.1364/AO.31.007113}, journal = {Appl. Opt.}, keywords = {cirrus, error, lidar, raman}, month = {November}, number = {33}, pages = {7113}, posted-at = {2009-08-03 21:05:20}, priority = {2}, publisher = {OSA}, title = {Independent measurement of extinction and backscatter profiles in cirrus clouds by using a combined Raman elastic-backscatter lidar}, url = {http://dx.doi.org/10.1364/AO.31.007113}, volume = {31}, year = {1992} }

TY - JOUR ID - citeulike:4236695 L3 - citeulike-article-id:4236695 N2 - Height profiles of the extinction and the backscatter coefficients in cirrus clouds are determined independently from elastic- and inelastic- (Raman) backscatter signals. An extended error analysis is given. Examples covering the measured range of extinction-to-backscatter ratios (lidar ratios) in ice clouds are presented. Lidar ratios between 5 and 15 sr are usually found. A strong variation between 2 and 20 sr can be observed within one cloud profile. Particle extinction coefficients determined from inelastic-backscatter signals and from elastic-backscatter signals by using the Klett method are compared. The Klett solution of the extinction profile can be highly erroneous if the lidar ratio varies along the measuring range. On the other hand, simple backscatter lidars can provide reliable information about the cloud optical depth and the mean cloud lidar ratio. IS - 33 JF - Appl. Opt. EP - 7113 TI - Independent measurement of extinction and backscatter profiles in cirrus clouds by using a combined Raman elastic-backscatter lidar PB - OSA VL - 31 SP - 7113 KW - cirrus KW - error KW - lidar KW - raman AU - Ansmann, Albert AU - Wandinger, Ulla AU - Riebesell, Maren AU - Weitkamp, Claus AU - Michaelis, Walfried PY - 1992/11/20/ UR - http://dx.doi.org/10.1364/AO.31.007113 ER -