منابع مشابه
Radar observations of individual rain drops in the free atmosphere.
Atmospheric remote sensing has played a pivotal role in the increasingly sophisticated representation of clouds in the numerical models used to assess global and regional climate change. This has been accomplished because the underlying bulk cloud properties can be derived from a statistical analysis of the returned microwave signals scattered by a diverse ensemble comprised of numerous cloud h...
متن کاملShape Slope Parameter Distribution Mod- Elling of Electromagnetic Scattering by Rain Drops
Gamma model parameters using 2nd, 3rd and 4th moments are calculated from the drop size data of Singapore. The gamma model is simplified into two parameter model by finding a relation between the shape and slope parameters, μ and Λ. Due to the poor correlation found between μ and Λ, the drop size data is filtered based on their rain rates before a good correlation between the two parameters can...
متن کاملModern pollen rain in Canary Island ecosystems and its implications for the interpretation of fossil records
a Island Ecology and Biogeography Group, Instituto Universitario de Enfermedades Tropicales y Salud Pública de Canarias (IUETSPC), Universidad de La Laguna (ULL), Avda. Astofísico Francisco Sánchez s/n, La Laguna 38206, Canary Islands, Spain b Oxford Long-term Ecology Laboratory, Biodiversity Institute, Department of Zoology, University of Oxford, Tinbergen Building, South Parks Road, Oxford, O...
متن کاملRainbows by elliptically deformed drops. II. The appearance of supernumeraries of high-order rainbows in rain showers.
The appearance of supernumeraries of high-order rainbows in heavy rain showers is explored for rainbows up to order five (p=6). This is done by using a combination of the ray-theory-based first-order Möbius approximation for high-order rainbows with the Airy approximation of the rainbow radiance distribution. We conclude that supernumerary formation of rainbows of order three, four, and five is...
متن کاملPearl drops
– If deposited on a hydrophobic rough substrate, a small drop of water can look like a pearl, with a contact angle close to 180. We examine the conditions for observing such a phenomenon and show practical achievements where the contact angle can be predicted and thus quantitatively tuned by the design of the surface microstructure. Presentation. – The contact angle of a drop on a solid is idea...
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ژورنال
عنوان ژورنال: Nature
سال: 1904
ISSN: 0028-0836,1476-4687
DOI: 10.1038/069535c0