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RISRetrieving Stratocumulus Drizzle Parameters Using Doppler Radar and Lidar
Publisher: American Meteorological Society
Abstract: Stratocumulus is one of the most common cloud types globally, with a profound effect on the earth?s radiation budget, and the drizzle process is fundamental in understanding the evolution of these boundary layer clouds. ...
A Technique for Autocalibration of Cloud Lidar
Publisher: American Meteorological Society
Abstract: In this paper a technique for autocalibration of a cloud lidar is demonstrated. It is shown that the lidar extinction-to-backscatter ratio derived from integrated backscatter for stratocumulus is, in the absence of drizzle, ...
Low-Level Jets over Utö, Finland, Based on Doppler Lidar Observations
Publisher: American Meteorological Society
Abstract: AbstractOver two years of meteorological observations from Utö, a small island in the Finnish outer archipelago in the Baltic Sea, were used to investigate the occurrence and characteristics of low-level jets (LLJs) and ...
Absolute Calibration of 94/95-GHz Radars Using Rain
Publisher: American Meteorological Society
Abstract: Absolute calibration of cloud radars is very difficult. A new method is proposed for 94/95-GHz radars that exploits the fact that at this frequency, the radar reflectivity factor of rain measured at a range of 250 m is ...
Diurnal and Seasonal Cycles of Cloud Occurrences, Types, and Radiative Impact over West Africa
Publisher: American Meteorological Society
Abstract: his study focuses on the occurrence and type of clouds observed in West Africa, a subject that has been neither much documented nor quantified. It takes advantage of data collected above Niamey, Niger, in 2006 with the ...
A Method for Estimating the Turbulent Kinetic Energy Dissipation Rate from a Vertically Pointing Doppler Lidar, and Independent Evaluation from Balloon-Borne In Situ Measurements
Publisher: American Meteorological Society
Abstract: A method of estimating dissipation rates from a vertically pointing Doppler lidar with high temporal and spatial resolution has been evaluated by comparison with independent measurements derived from a balloon-borne sonic ...
Using Continuous Ground-Based Radar and Lidar Measurements for Evaluating the Representation of Clouds in Four Operational Models
Publisher: American Meteorological Society
Abstract: The ability of four operational weather forecast models [ECMWF, Action de Recherche Petite Echelle Grande Echelle model (ARPEGE), Regional Atmospheric Climate Model (RACMO), and Met Office] to generate a cloud at the right ...
Clouds, Aerosols, and Precipitation in the Marine Boundary Layer: An Arm Mobile Facility Deployment
Publisher: American Meteorological Society
Abstract: he Clouds, Aerosol, and Precipitation in the Marine Boundary Layer (CAP-MBL) deployment at Graciosa Island in the Azores generated a 21-month (April 2009?December 2010) comprehensive dataset documenting clouds, aerosols, ...
THE CLOUDSAT MISSION AND THE A-TRAIN
Publisher: American Meteorological Society
Abstract: CloudSat is a satellite experiment designed to measure the vertical structure of clouds from space. The expected launch of CloudSat is planned for 2004, and once launched, CloudSat will orbit in formation as part of a ...
BAECC: A Field Campaign to Elucidate the Impact of Biogenic Aerosols on Clouds and Climate
Publisher: American Meteorological Society
Abstract: uring Biogenic Aerosols?Effects on Clouds and Climate (BAECC), the U.S. Department of Energy?s Atmospheric Radiation Measurement (ARM) Program deployed the Second ARM Mobile Facility (AMF2) to Hyytiälä, Finland, for an ...