Ground-based observations of cloud and drizzle liquid water path in stratocumulus clouds
نویسندگان
چکیده
منابع مشابه
Relationship between drizzle rate, liquid water path and droplet concentration at the scale of a stratocumulus cloud system
The recent ACE-2, EPIC and DYCOMS-II field experiments showed that the drizzle precipitation rate of marine stratocumulus scales with the cloud geometrical thickness or liquid water path, and the droplet concentration, when averaged over a domain typical of a GCM grid. This feature is replicated here with large-eddy-simulations using stateof-the-art bulk parameterizations of precipitation forma...
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[1] We examine liquid water paths (LWPs) derived from ship-based microwave radiometer brightness temperature (Tb) measurements collected within southeastern Pacific stratocumulus at 20 S, 85 W in October 2001. The boundary layer was typically well mixed and overcast. Three gaseous absorption models and two liquid dielectric models are evaluated. Total differences in retrieved LWP attributable t...
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[1] The stratocumulus‐topped marine boundary layer (BL), aerosol, and cloud properties observed on research flights made off the coast of northern Chile in the Southeastern Pacific (20°S, 72°W) during the VAMOS Ocean‐Cloud‐ Atmosphere‐Land Study‐Regional Experiment (VOCALS‐ REx) were used to examine the variation of liquid water path (LWP) and cloud condensation nuclei (CCN). Ten flights were m...
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Two simple heuristic model formulations for warm rain formation are introduced and their behavior explored. The first, which is primarily aimed at representing warm rain formation in shallow convective clouds, is a continuous collection model that uses an assumed cloud droplet size distribution consistent with observations as the source of embryonic drizzle drops that are then allowed to fall t...
متن کاملJoint retrievals of cloud and drizzle in marine boundary layer clouds using ground-based radar, lidar and zenith radiances
Active remote sensing of marine boundary-layer clouds is challenging as drizzle drops often dominate the observed radar reflectivity. We present a new method to simultaneously retrieve cloud and drizzle vertical profiles in drizzling boundary-layer clouds using surface-based observations of radar reflectivity, lidar attenuated backscatter, and zenith radiances under conditions when precipitatio...
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ژورنال
عنوان ژورنال: Atmospheric Measurement Techniques
سال: 2020
ISSN: 1867-8548
DOI: 10.5194/amt-13-1485-2020