期刊名称：IOP Conference Series: Earth and Environmental Science
印刷版ISSN：1755-1307
电子版ISSN：1755-1315
出版年度：2008
卷号：1
出版社：IOP Publishing
摘要：Urban air quality assessment requires the knowledge of the temporal and spatial
structure of the mixing-layer height (MLH), because this variable controls the
vertical space for rapid mixing of near-surface pollutants. Because MLH is a
consequence of vertical temperature and moisture profiles in the lower
atmosphere, remote sensing is a suitable tool to monitor MLH. Two ceilometers, a
Vaisala LD40 and a Vaisala CL31, have been run for many months in the German
city of Augsburg to observe the vertical aerosol distribution. Wind and
temperature profile information have been obtained for the same period from
sodar observations. This paper compares the MLH determined from the optical
backscatter intensity received by the two ceilometers among each other and with
the MLH derived from the acoustic backscatter intensity and the variance of the
vertical wind component from sodar measurements.
