Snow in the Summertime

The Cattleman;  August 1, 2004 ;     450 words ......the fact that, on the scale of the cloud droplets, the liquid water of the cloud is suddenly...into ice. If all that happened was the cloud droplets suddenly froze, the cloud's appearance...change much. But in all clouds, the cloud droplets far outnumber the ice particles. Because...

Numerical Simulation of Cloud-Clear Air Interfacial Mixing: Effects on...

Journal of the Atmospheric Sciences;  December 1, 2006 ;     700+ words ......humidity (RH) of clear air, and size of cloud droplets. The simulations demonstrate that regardless...conditions the evolutions of the number of cloud droplets and the mean volume radius follow a...air filaments, and the mean size of cloud droplets. The resulting evolution path ...

The how and why of rain.(The Home Forum)(Kid Space)

The Christian Science Monitor;  April 25, 2000 ;     700+ words ......onto in order to form what scientists call cloud droplets. Cloud droplets are what clouds are made of:microscopic globules...become the nuclei (NUKE-lee-eye) or centers for cloud droplets. Raindrops are just grown-up cloud droplets...

A Large-Droplet Mode and Prognostic Number Concentration of Cloud Droplets...

Journal of Applied Meteorology;  January 1, 2004 ;     700+ words ......number concentration of cloud droplets through activation of...represent the dual modes of cloud droplets that often appear in...the use of a Lagrangian parcel model that considers ambient...for the nucleation of cloud droplets from aerosol. These new...is partitioned ...

Cloud

Canadian Encyclopedia;      700+ words ......100 cloud types that have been named. Cloud droplets form on hygroscopic (moisture-retaining...concentration of 0.1-10 g/m of air is typical. Cloud droplets fall through the air at a speed of...clouds appear to float in the sky. Cloud droplets grow predominantly by condensation...

WEIRD SCIENCE: Why do clouds float.(Features)

Birmingham Evening Mail (England);  September 3, 2005 ;     347 words ......condenses to form tiny droplets. These tiny cloud droplets are about 100th of a millimetre across...cubic kilometre scale. The individual cloud droplets are still under the influence of gravity...slow things down. For the microscopic cloud droplets, drag and gravity almost cancel ...

AEROSOL EFFECTS IN SNOWFALL-AND BEYOND

Bulletin of the American Meteorological Society;  October 1, 2004 ;     335 words ......pollution aerosols decrease the size of cloud droplets, these smaller cloud droplets cannot be collected as easily by snowflakes...process that depends on the size of the cloud droplets. The climate model results reproduce the...

Droughts aggravated by dust in the wind

Bulletin of the American Meteorological Society;  August 1, 2001 ;     601 words ......condensation nuclei, which produce larger cloud droplets that speed the formation of rain...dust particles form relatively small cloud droplets." The research shows dust actually...where water vapor can condense to form cloud droplets. If a large amount of dust enters a...

The Cloud Catchers.

Weatherwise;  January 1, 2001 ;     700+ words ......white from a growing layer of freezing cloud droplets. I squint against the wind and cold...to snatch them. The racket collects cloud droplets and the mortar collects snow crystals...above the range attempting to locate cloud droplets that could be transformed into snow...

Growth of Cloud Droplets by Turbulent Collision-Coalescence

Journal of the Atmospheric Sciences;  February 1, 2008 ;     700+ words ......observed. In particular, the growth of cloud droplets across the size gap from 10 to 50 m...the authors investigate the growth of cloud droplets by collision-coalescence, taking into...formulae omitted.) 1. Introduction Cloud droplets of radii less than 10-15 m grow efficiently...

Collisions of Cloud Droplets in a Turbulent Flow. Part IV: Droplet...

Journal of the Atmospheric Sciences;  July 1, 2007 ;     700+ words ......efficient method for calculation of cloud droplets' collision efficiency in a turbulent...which turbulence increases the rate of cloud droplets' collisions is its influence on HDI...and the global climate. Collisions of cloud droplets (1- to ~20-m radius droplets) are of...

DROUGHTS AGGRAVATED BY DUST IN THE WIND FEDERAL DOCUMENT CLEARING HOUSE,...

Regulatory Intelligence Data;  May 15, 2001 ;     663 words ......condensation nuclei, which produce larger cloud droplets that speed the formation of rain. Our...dust particles form relatively small cloud droplets. The research shows dust actually amplifies...where water vapor can condense to form cloud droplets. If a lot of dust enters a cloud, ...

Comments on "preferential concentration of cloud droplets by turbulence:...

Journal of the Atmospheric Sciences;  May 15, 1999 ;     700+ words ......spatial distribution of cloud droplets and their growth by the...on the assumption that cloud droplets are not randomly distributed...predicted by a classic parcel model, significant activation...diffusional growth of cloud droplets inside adiabatic cores...small ...

micrometre

A Dictionary of Weather;      38 words ...micrometre (μm) An SI submultiple of the metre (10 −1 m), frequently used for infrared and microwave wavelengths and the diameter of aerosols , cloud droplets, etc. Previously known as the micron, a term that remains in common use.

Cloud seeding may not affect Colorado drought

University Wire;  August 28, 2002 ;     495 words ......condensed in the vapor molecules begins to form cloud droplets. Cloud droplets form around microscopic aerosol particles in the atmosphere. Clouds consist of many tiny cloud droplets, and it takes about one million droplets just...