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Drizzle in Stratiform Boundary Layer Clouds. Part II: Microphysical Aspects
Publisher: American Meteorological Society
Abstract: This is the second of two observational papers examining drizzle in stratiform boundary layer clouds. Part I details the vertical and horizontal structure of cloud and drizzle parameters, including some bulk microphysical ...
Drizzle in Stratiform Boundary Layer Clouds. Part I: Vertical and Horizontal Structure
Publisher: American Meteorological Society
Abstract: Detailed observations of stratiform boundary layer clouds on 12 days are examined with specific reference to drizzle formation processes. The clouds differ considerably in mean thickness, liquid water path (LWP), and droplet ...
Topographic Sensitivity Studies with a Bryan–Cox-Type Ocean Model
Publisher: American Meteorological Society
Abstract: This paper describes a series of four experiments, each run for 10 years at 1° ? 1° resolution on a North Atlantic domain, designed to illuminate the sensitivity of a Bryan?Cox-type ocean model to changes in the representation ...
Fingerprints for Early Detection of Changes in the AMOC
Publisher: American Meteorological Society
Abstract: Different strategies have been proposed in previous studies for monitoring the Atlantic meridional overturning circulation (AMOC). As well as arrays to directly monitor the AMOC strength, various fingerprints have been ...
How Important Is the Spectral Ripening Effect in Stratiform Boundary Layer Clouds? Studies Using Simple Trajectory Analysis
Publisher: American Meteorological Society
Abstract: Any population of cloud droplets forming on polydisperse condensation nuclei is thermodynamically unstable. There is no value of the supersaturation for which the growth rate of all the droplets is zero, so that if some ...
Parameterization of the Autoconversion Process. Part II: Generalization of Sundqvist-Type Parameterizations
Publisher: American Meteorological Society
Abstract: Existing Sundqvist-type parameterizations, which only consider dependence of the autoconversion rate on cloud liquid water content, are generalized to explicitly account for the droplet concentration and relative dispersion ...
Midlatitude Cyclone Compositing to Constrain Climate Model Behavior Using Satellite Observations
Publisher: American Meteorological Society
Abstract: Identical composite analysis of midlatitude cyclones over oceanic regions has been carried out on both output from the NCAR Community Atmosphere Model, version 3 (CAM3) and multisensor satellite data. By focusing on mean ...
Mechanisms Determining the Atlantic Thermohaline Circulation Response to Greenhouse Gas Forcing in a Non-Flux-Adjusted Coupled Climate Model
Publisher: American Meteorological Society
Abstract: Models of the North Atlantic thermohaline circulation (THC) show a range of responses to the high-latitude warming and freshening characteristic of global warming scenarios. Most simulate a weakening of the THC, with some ...