Now showing items 1-10 of 16
Three-Dimensional Structure of Transatlantic African Dust Transport : A New Perspective from CALIPSO LiDAR Measurements, The
Author(s):Liu, Dong; Wang, Yingjian; Wang, Zhien; Zhou, Jun
The lack of information on the vertical distribution of dust, in turn, results in large uncertainties when attempting to evaluate the impacts of dust on climate processes. We analyzed over two years of LIDAR measurements ...
Ice in Clouds Experiment -- Layer Clouds, Part I. Ice Growth Rates Derived from Lenticular Wave Cloud Penetrations
Author(s):Heymsfield, Andrew J.; Field, Paul R.; Bailey, Matt; Rogers, Dave; Stith, Jeffrey; Twohy, Cynthia; Wang, Zhien; Haimov, Samuel
Lenticular wave clouds are used as a natural laboratory to estimate the linear and mass growth rates of ice particles at temperatures from -20° to -32°C and to characterize the apparent rate of ice nucleation at water ...
On Factors Controlling Marine Boundary Layer Aerosol Optical Depth
Author(s):Luo, Tao; Yuan, Renmin; Wang, Zhien
Sea spray aerosol is one of the largest natural contributors to the global aerosol loading and thus plays an important role in the global radiative budget through both direct and indirect effects. Previous studies have ...
Dryline in Southeast Wyoming. Part II : Airborne In Situ and Raman LiDAR Observations, A
Author(s):Bergmaier, Philip T.; Geerts, Bart; Wang, Zhien; Liu, Bo; Campbell, Patrick C.
Part I of this study describes the mesoscale structure of a dryline over southeastern Wyoming. This dryline formed just east of the western rim of the high plains on 22 June 2010 and became more defined as it progressed ...
Contrails of Small and Very Large Optical Depth
Author(s):Atlas, David; Wang, Zhien
This work deals with two kinds of contrails. The first comprises a large number of optically thin contrails near the tropopause. They are mapped geographically using a lidar to obtain their height and a camera to obtain ...
New Cloud and Aerosol Layer Detection Method Based on Micropulse LiDAR Measurements, A
Author(s):Zhao, Chuanfeng; Wang, Yuzhao; Wang, Qianqian; Li, Zhanqing; Wang, Zhien; Liu, Dong
This paper introduces a new algorithm to detect aerosols and clouds based on micropulse lidar measurements. A semidiscretization processing technique is first used to inhibit the impact of increasing noise with distance. ...
Comparison of Arctic Clouds Between European Center for Medium-Range Weather Forecasts Simulations and Atmospheric Radiation Measurement Climate Research Facility Long-Term Observations at the North Slope of Alaska Barrow Site
Author(s):Zhao, Ming; Wang, Zhien
This study evaluated the European Center for Medium-Range Weather Forecasts (ECMWF) model-simulated clouds and boundary layer (BL) properties based upon Atmospheric Radiation Measurement Climate Research Facility observations ...
Microphysical Properties of Antarctic Polar Stratospheric Clouds and their Dependence on Tropospheric Cloud Systems
Author(s):Adhikari, Loknath; Wang, Zhien; Liu, Dong
Cloud-Aerosol Lidar and Infrared Pathfinder Satellite Observation (CALIPSO) and CloudSat satellite measurements are used to investigate the impact of tropospheric high and deep clouds on the microphysical properties of ...
A-train satellite based stratiform mixed-phase cloud retrieval algorithm by combining active and passive sensor measurements, An
Author(s):Adhikari, Loknath; Wang, Zhien
Aims: To develop a new satellite-based mixed-phase cloud retrieval algorithm for improving mixed-phase cloud liquid water path (LWP) retrievals by combining Moderate Resolution Imaging Spectroradiometer (MODIS), CloudSat, ...
Relationships of Biomass-Burning Aerosols to Ice in Orographic Wave Clouds
Author(s):Twohy, C. H.; DeMott, P. J.; Pratt, K. A.; Subramanian, R.; Kok, G. L.; Murphy, Shane; Lersch, T.; Heymsfield, A. J.; Wang, Zhien; Prather, K. A.; Seinfeld, J. H.
Ice concentrations in orographic wave clouds at temperatures between -24° and -29°C were shown to be related to aerosol characteristics in nearby clear air during five research flights over the Rocky Mountains. When clouds ...