Results 191 to 200 of about 14,728 (225)

Temperature and Moisture Gradients under Low Stratus Clouds*

Bulletin of the American Meteorological Society, 1952
The lapse rate of dew point is developed from thermodynamic relations. It is shown to have varied values depending on the flux of water vapor but to have a value of nearly 1.0F° per 1,000 feet for steady state. The lapse rate of temperature is developed after a method suggested by Priestley and Swinbank.
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Profiles of Low-Level Stratus Cloud Microphysics Deduced from Ground-Based Measurements

Journal of Atmospheric and Oceanic Technology, 2003
The microwave radiometer‐derived cloud liquid water path (LWP) and a profile of radar reflectivity are used to derive a profile of cloud liquid water content (LWC). Two methods (M1 and M2) have been developed for inferring the profile of cloud-droplet effective radius (re) in liquid phase or liquid dominant mixed phase stratocumulus clouds.
Xiquan Dong, Gerald G. Mace
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Forecasting Rain with Low Stratus in the Midlands of England

Bulletin of the American Meteorological Society, 1961
A semi-objective method of forecasting the onset of steady rain and associated low stratus, as well as the height of this stratus, is described and illustrated with selected cases. The procedures depend heavily on the proper interpretation of the 700-mb level, especially its wind and moisture fields.
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The fog/low stratus clouds in the Arctic: detection with multispectral satellite imagery

2020
<p>            The safe operation of aviation and shipping, particularly in areas of insufficient coverage of automatic meteorological stations in the Arctic requires accurate ...
Daria Tatsii, Natalia Fedoseeva
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Identifying and analyzing fog and low stratus life cycle regimes over central Europe

2023
This contribution presents spatially distinct fog and low stratus (FLS) formation and dissipation regimes derived from satellite and reanalysis data and their sensitivities to meteorological and land surface conditions over central Europe.FLS formation and dissipation processes are strongly governed by meteorological and land-surface conditions and ...
Eva Pauli, Jan Cermak, Hendrik Andersen
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Homing Pigeons’ Flight Over and Under Low Stratus

1978
The Homing pigeons were released and followed by helicopter from mountains emerging like islands from a layer of low stratus clouds in Switzerland, with the loft being under the stratus. Different kinds of behavior were observed: (1) A heading toward a visible mountain-island, flying over the stratus in approximate home direction; (2) flying very low ...
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Fog and low-level stratus characteristics at the airport of Lviv from surface observations

2023
Fog and low-level stratus have been recognised as a hazardous weather phenomenon leading to several losses in time, money and even human life above all in aviation but also in other forms of transportation, such as navigation and land transportation. The forecast of low-level stratus and fog is one of the most difficult issues of aviation meteorology ...
Inna Khomenko, Oleksii Hustenko
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Drivers of fog and low stratus - a satellite-based evaluation with machine learning

2020
<p>In this study the distribution of fog and low stratus (FLS) relative to land cover and meteorological conditions in continental Europe is investigated using a state-of-the-art machine learning technique  and geostationary satellite data.
Eva Pauli, Hendrik Andersen, Jörg Bendix, Jan Cermak, Sebastian Egli   +4 more
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FFLSD - Fast Fog and Low Stratus Detection tool for large satellite time-series

Computers & Geosciences, 2019
Abstract Fast Fog and Low Stratus Detection (FFLSD) is a processing tool enabling detection of fog and low stratus (FLS) on very large time-series of Meteosat Second Generation data. We combine approaches for FLS detection by day and night into one homogeneous and efficient processing tool.
Johannes Drönner, Sebastian Egli, Boris Thies, Jörg Bendix, Bernhard Seeger   +4 more
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A geographic perspective on fog and low stratus formation and dissipation over central Europe

2022
<p>In this contribution geographic patterns of fog and low stratus (FLS) formation and dissipation over central Europe are presented using a novel satellite-based data set. <br>Formation and dissipation of FLS are the results of complex interactions of meteorological and land-surface processes.
Eva Pauli, Jan Cermak, Hendrik Andersen
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