نتایج جستجو برای: ice crystals and ions therefore during precipitation
تعداد نتایج: 17093527 فیلتر نتایج به سال:
assigning premium to the insurance contract in iran mostly has based on some old rules have been authorized by government, in such a situation predicting premium by analyzing database and it’s characteristics will be definitely such a big mistake. therefore the most beneficial information one can gathered from these data is the amount of loss happens during one contract to predicting insurance ...
of the Fujiwara Medal of the Meteorological Society of Japan, is an expert on lightning, clouds, and rain. A professor at Obirin University, Japan, Takahashi visited the IPRC during May and June 2003 to collaborate with ShangPing Xie, co-leader of the IPRC Indo-Pacific Ocean Climate Team, on studies of tropical rain and its structure using in situ and satellite observations as well as modeling ...
OCTOBER 2003 AMERICAN METEOROLOGICAL SOCIETY | T he interplay of sunlight, moonlight, or anthropogenic light sources with cloud and precipitation particles can produce a wide variety of optical phenomena, some with dazzling arcs and colors, in the sky around us. These naturally occurring patterns of redistributed light, often referred to generally as atmospheric optics, represent an especially ...
Phase transformation and precipitation formation in mixed-phase clouds are usually associated with the Wegener–Bergeron–Findeisen (WBF) process in which ice crystals grow at the expense of liquid droplets. The evolution of mixed-phase clouds, however, is closely related to local thermodynamical conditions, and the WBF process is just one of three possible scenarios. The other two scenarios invo...
1. INTRODUCTION Cloud feedbacks are the largest source of uncertainty in climate models. In particular, uncertainties exist concerning the radiative forcing of clouds containing ice crystals, most notably cirrus. Indeed, whether cirrus clouds warm or cool the Earth's surface depends on ice crystal morphology. Reducing this uncertainty requires detailed in situ characterization of cloud particle...
In situ high resolution aircraft measurements of cloud microphysical properties were made in coordination with ground based remote sensing observations of a line of small cumulus clouds, using Radar and Lidar, as part of the Aerosol Properties, PRocesses And InfluenceS on the Earth’s climate (APPRAISE) project. A narrow but extensive line (∼100 km long) of shallow convective clouds over the sou...
Recently, two types of ice clouds (TICs) properties have been characterized using the Indirect and SemiDirect Aerosol Campaign (ISDAC) airborne measurements (Alaska, April 2008). TIC-2B were characterized by fewer (< 10 L−1) and larger (> 110 μm) ice crystals, and a larger ice supersaturation (> 15 %) compared to TIC-1/2A. It has been hypothesized that emissions of SO2 may reduce the ice nuclea...
abstract: country’s fiber optic network, as one of the most important communication infrastructures, is of high importance; therefore, ensuring security of the network and its data is essential. no remarkable research has been done on assessing security of the country’s fiber optic network. besides, according to an official statistics released by ertebatat zirsakht company, unwanted disconnec...
abstract ion selective electrodes (ises) are electrochemical sensors that respond selectivity to the activity of ionic species. an ion-selective electrode is an electrochemical device that uses a thin selective membrane or film as the recognition element, and is an electrochemical half-cell equivalent to other half-cells of the zeroth (inert metal in a redox electrolyte). in common methods o...
investigations in recent decades have shown an unexpected increase in aerosol concentrations in metropolitan and industrialized regions. it was sometimes followed by heat islands and probably decreases in precipitation due to an inadvertent cloud overseeding process. particle pollutants act like small cloud condensation nuclei in which they form large collections of small droplets in cloud. col...
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