Lidar observations of aerosol layers just below the tropopause level during IFP-INDOEX

Authors
Parameswaran, K Nair, PR Moorthy, KK Murthy, BVK Nayar, SRP Revathy, K Satheesan, K Rao, PB Bhavanikumar, Y Raghunath, K Krishnaiah, M
Citation
K. Parameswaran et al., Lidar observations of aerosol layers just below the tropopause level during IFP-INDOEX, CURRENT SCI, 80, 2001, pp. 166-170
Citations number
10
Categorie Soggetti
Multidisciplinary,Multidisciplinary
Journal title
CURRENT SCIENCE
ISSN journal
00113891 → ACNP
Volume
80
Year of publication
2001
Supplement
S
Pages
166 - 170
Database
ISI
SICI code
0011-3891(20010410)80:<166:LOOALJ>2.0.ZU;2-9
Abstract
A lidar system has been used at Gadanki (13.5 degrees, 79.2 degreesE) to st udy the characteristics of aerosol layer (cloud) occurring just below the t ropical tropopause, The preliminary results of the lidar observations indic ate that the cloud occurs similar to 2 km below the tropopause. The top and bottom edges of the cloud have propensity for ice crystal presence with li quid droplets/vapours in-between. The clouds show temporal fluctuations tin their backscattering ratio) with temporal scales of the order of 30-90 min .